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Psychometric Validation of Sheffield Profile for Assessment and Referral to Care (SPARC) in Korean Cancer Patients
Hong Jun Kim, Eun Hee Jung, Jung Hye Kwon, Yu Jung Kim, Su-Jin Koh, Myung Ah Lee, Jung Hun Kang, Sun Young Rha, Eun Mi Nam, Sun Kyung Baek, Ha Yeon Lee, Hun Ho Song, Young-Woong Won, Hanbyul Lee
Received July 26, 2024  Accepted December 4, 2024  Published online December 5, 2024  
DOI: https://doi.org/10.4143/crt.2024.706    [Accepted]
AbstractAbstract PDF
Purpose
Identifying the palliative care needs of patients with advanced cancer is important for maintaining quality of life and timely transition to palliative care. We aimed to validate the Korean Sheffield Profile for Assessment and Referral for Care (K-SPARC) in such patients and establish its psychometric properties, including reliability, validity, and responsiveness to change.
Materials and Methods
We used the forward-back translated version of SPARC, which was verified through a pilot study, to assess the palliative care needs of patients with advanced cancer. Reliability was evaluated by internal consistency using Cronbach's alpha coefficients and test-retest reliability. Criterion validity was analyzed against other questionnaires, including the Korean versions of the Functional Assessment of Cancer Therapy-General (FACT-G Korean) and Korean versions of the Edmonton Symptom Assessment System (K-ESAS). Factor analysis was used to assess construct validity.
Results
Two hundred fifty-nine patients were included from 2019 to 2022. Forty-nine percent of all patients were women, and the median age was 63 years. Cronbach’s alpha coefficient (range, 0.642–0.903) and test-retest reliability (range, 0.574–0.749) indicated acceptable reliability. The correlation coefficients between K-SPARC and FACT-G Korean suggested significant criterion validity. The correlation coefficients for the physical, social, emotional, and functional domains were 0.701, 0.249, 0.718, and 0.511, respectively (p-value <0.001, all). Factor analysis demonstrated satisfactory construct validity of the tool.
Conclusion
This study demonstrated the utility of K-SPARC as an evaluation tool for providing palliative care to patients with advanced cancer through psychometric validation; the tool had good internal consistency, reliability, and acceptable validity.
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General
Validation and Clinical Application of ONCOaccuPanel for Targeted Next-Generation Sequencing of Solid Tumors
Moonsik Kim, Changseon Lee, Juyeon Hong, Juhee Kim, Ji Yun Jeong, Nora Jee-Young Park, Ji-Eun Kim, Ji Young Park
Cancer Res Treat. 2023;55(2):429-441.   Published online November 25, 2022
DOI: https://doi.org/10.4143/crt.2022.891
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
Targeted next-generation sequencing (NGS) is widely used for simultaneously detecting clinically informative genetic alterations in a single assay. Its application in clinical settings requires the validation of NGS gene panels. In this study, we aimed to validate a targeted hybridization capture-based DNA panel (ONCOaccuPanel) using the Illumina MiSeq sequencing platform. The panel allows the simultaneous detection of single-nucleotide variants (SNVs), insertions, deletions, and copy number changes of 323 genes and fusions of 17 genes in solid tumors.
Materials and Methods
We used 16 formalin-fixed paraffin-embedded (FFPE) tumor samples with previously known genetic mutations and one reference material (HD827) for validation. Moreover, we sequenced an additional 117 FFPE tumor samples to demonstrate the clinical utility of this panel.
Results
Validation revealed a 100% positive percentage agreement and positive predictive value for the detection of SNVs, insertions, deletions, copy number changes, fusion genes, and microsatellite instability–high types. We observed high levels of reproducibility and repeatability (R2 correlation coefficients=0.96-0.98). In the limit of detection assessment, we identified all clinically relevant genes with allele frequencies > 3%. Furthermore, the clinical application of ONCOaccuPanel using 117 FFPE samples demonstrated robust detection of oncogenic alterations. Oncogenic alterations and targetable genetic alterations were detected in 98.2% and 27.4% cases, respectively.
Conclusion
ONCOaccuPanel demonstrated high analytical sensitivity, reproducibility, and repeatability and is feasible for the detection of clinically relevant mutations in clinical settings.

Citations

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  • Primary Solid Pseudopapillary Tumor of the Ovary: A Case Report and Review of the Literature
    Juhun Lee, Seung Ho Song, In Hee Lee, Dong Ja Kim, Hyun Jung Lee
    Journal of Clinical Medicine.2024; 13(10): 2791.     CrossRef
  • Genome-scale mutational signature analysis in archived fixed tissues
    Bérénice Chavanel, François Virard, Vincent Cahais, Claire Renard, Cécilia Sirand, Kim M. Smits, Leo J. Schouten, Béatrice Fervers, Barbara Charbotel, Behnoush Abedi-Ardekani, Michael Korenjak, Jiri Zavadil
    Mutation Research - Reviews in Mutation Research.2024; 794: 108512.     CrossRef
  • Artificial intelligence algorithm for neoplastic cell percentage estimation and its application to copy number variation in urinary tract cancer
    Jinahn Jeong, Deokhoon Kim, Yeon-Mi Ryu, Ja-Min Park, Sun Young Yoon, Bokyung Ahn, Gi Hwan Kim, Se Un Jeong, Hyun-Jung Sung, Yong Il Lee, Sang-Yeob Kim, Yong Mee Cho
    Journal of Pathology and Translational Medicine.2024; 58(5): 229.     CrossRef
  • CDKN2A Homozygous Deletion Is a Stronger Predictor of Outcome than IDH1/2-Mutation in CNS WHO Grade 4 Gliomas
    Sang Hyuk Lee, Tae Gyu Kim, Kyeong Hwa Ryu, Seok Hyun Kim, Young Zoon Kim
    Biomedicines.2024; 12(10): 2256.     CrossRef
  • Risk prediction criteria for the primary hepatic perivascular epithelioid cell tumour family, including angiomyolipoma: analysis of 132 cases with a literature review
    Youngeun Yoo, Jihun Kim, In Hye Song
    Histopathology.2024;[Epub]     CrossRef
  • Comparison of immunohistochemistry and next-generation sequencing results in oncogenic PTEN missense mutations
    Moonsik Kim, Jinhee Kim, An Na Seo, Ji Yun Jeong, Nora Jee-Young Park, Gun Oh Chong, Dae Gy Hong, Ji Young Park
    Pathology - Research and Practice.2023; 251: 154879.     CrossRef
  • BRCA-mutated gastric adenocarcinomas are associated with chromosomal instability and responsiveness to platinum-based chemotherapy
    Ji Hyun Oh, Chang Ohk Sung, Hyung-Don Kim, Sung-Min Chun, Jihun Kim
    Journal of Pathology and Translational Medicine.2023; 57(6): 323.     CrossRef
  • Clinical Application of the Association between Genetic Alteration and Intraoperative Fluorescence Activity of 5-Aminolevulinic Acid during the Resection of Brain Metastasis of Lung Adenocarcinoma
    Hyeon Yeong Jeong, Won Jun Suh, Seung Hwan Kim, Taek Min Nam, Ji Hwan Jang, Kyu Hong Kim, Seok Hyun Kim, Young Zoon Kim
    Cancers.2023; 16(1): 88.     CrossRef
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Lung and Thoracic cancer
Psychometric Validation of the Korean Version of the Cancer Survivors’ Unmet Needs (CaSUN) Scale among Korean Non–Small Cell Lung Cancer Survivors
Danbee Kang, Genehee Lee, Sooyeon Kim, Heesu Nam, Sunga Kong, Sungkeun Shim, Jae Kyung Lee, Wonyoung Jung, Sumin Shin, Hong Kwan Kim, Jae Ill Zo, Young Mog Shim, Dong Wook Shin, Juhee Cho
Cancer Res Treat. 2023;55(1):61-72.   Published online February 23, 2022
DOI: https://doi.org/10.4143/crt.2021.1583
AbstractAbstract PDFPubReaderePub
Purpose
The purpose of the study was to validate the Korean version of Cancer Survivors’ Unmet Needs (CaSUN) scale among non–small cell lung cancer survivors.
Materials and Methods
Participants were recruited from outpatient clinics at the Samsung Medical Center in Seoul, South Korea, from January to October 2020. Participants completed a survey questionnaire that included the CaSUN. Exploratory and confirmatory factor analysis and Pearson’s correlations were used to evaluate the reliability and validity of the Korean version of the CaSUN (CaSUN-K). We also tested known-group validity using an independent t test or ANOVA.
Results
In total, 949 provided informed consent and all of which completed the questionnaire. Among the 949 patients, 529 (55.7%) were male; the mean age and median time since the end of active treatment (standard deviation) was 63.4±8.8 years and the median was 18 months. Although the factor loadings were different from those for the original scale, the Cronbach’s alpha coefficients of the six domains in the CaSUN-K ranged from 0.68 to 0.95, indicating satisfactory internal consistency. In the CFA, the goodness-of-fit indices for the CaSUN-K were high. Moderate correlations demonstrated the convergent validity of CaSUN-K with the relevant questionnaire. More than 60% of the participants reported information-related unmet needs, and the CaSUN-K discriminated between the needs reported by the different subgroups that we analyzed.
Conclusion
The CaSUN-K is a reliable and valid measure for assessing the unmet needs in a cancer population, thus this tool help population to receive timely, targeted, and relevant care.

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  • Supporting Life Adjustment in Patients With Lung Cancer Through a Comprehensive Care Program: Protocol for a Controlled Before-and-After Trial
    Wonyoung Jung, Alice Ahn, Genehee Lee, Sunga Kong, Danbee Kang, Dongok Lee, Tae Eun Kim, Young Mog Shim, Hong Kwan Kim, Jongho Cho, Juhee Cho, Dong Wook Shin
    JMIR Research Protocols.2024; 13: e54707.     CrossRef
  • Validity and Reliability of a Simplified Chinese Version of Cancer Survivors' Unmet Needs Scale (CaSUN)
    Xiaojingyuan Xu, Xiaoyun Liang, Shiquan Yin
    Psycho-Oncology.2024;[Epub]     CrossRef
  • Unmet Supportive Care Needs after Non-Small Cell Lung Cancer Resection at a Tertiary Hospital in Seoul, South Korea
    Junhee Park, Wonyoung Jung, Genehee Lee, Danbee Kang, Young Mog Shim, Hong Kwan Kim, Ansuk Jeong, Juhee Cho, Dong Wook Shin
    Healthcare.2023; 11(14): 2012.     CrossRef
  • Kanserden Kurtulanların Karşılanmayan İhtiyaçları Ölçeğinin Türkçeye Uyarlanması: Geçerlik ve Güvenirlik Çalışması
    Gülyeter Erdoğan Yüce, Gamze Muz, Ayser Döner
    Hacettepe Üniversitesi Hemşirelik Fakültesi Dergisi.2023; 10(3): 264.     CrossRef
  • Psychometric properties of the Slovenian version of the Cancer Survivors’ Unmet Needs (CaSUN-SL) measure in post-treatment cancer survivors
    Špela Miroševič, Polona Selič-Zupančič, Judith Prins, Vesna Homar, Zalika Klemenc-Ketiš
    BMC Psychology.2022;[Epub]     CrossRef
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Breast cancer
Validation of Korean Version of the COmprehensive Score for financial Toxicity (COST) Among Breast Cancer Survivors
Sungkeun Shim, Danbee Kang, Nayeon Kim, Gayeon Han, Jihyun Lim, Hyunsoo Kim, Jeonghyun Park, Mankyung Lee, Jeong Eon Lee, Seok Won Kim, Jonghan Yu, Byung Joo Chae, Jai Min Ryu, Seok Jin Nam, Se Kyung Lee, Juhee Cho
Cancer Res Treat. 2022;54(3):834-841.   Published online October 13, 2021
DOI: https://doi.org/10.4143/crt.2021.784
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
Little is known about the impact of financial toxicity in disease-free breast cancer survivors. We aim to validate the COmprehensive Score for financial Toxicity in Korean (COST-K) and evaluate financial toxicity among disease-free breast cancer survivors.
Materials and Methods
We conducted linguistic validation following a standardized methodology recommended by Functional Assessment of Chronic Illness Therapy multilingual translation (FACITtrans). For psychometric validation, we conducted a cross-sectional survey with 4,297 disease-free breast cancer survivors at a tertiary hospital in Seoul, Korea between November 2018 and April 2019. Survivors were asked to complete the COST-K and European Organization for Research and Treatment of Cancer Quality of Life Core 30 (EORTC QLQ-C30) questionnaires. The test-retest reliability, internal consistency, and validity of the COST-K were assessed using standard scale construction techniques.
Results
The COST-K demonstrated good internal consistency, with a Cronbach’s α of 0.81. The test-retest analysis revealed an intraclass correlation coefficient of 0.78. The COST-K had moderate correlation (r=–0.60) with the financial difficulty item of the EORTC QLQ-C30 and week correlation with the items on acute and chronic symptom burdens (nausea/vomiting, –0.18; constipation, –0.14; diarrhea, –0.14), showing good convergent and divergent validity. The median COST-K was 27 (range, 0 to 44; mean±standard deivation [SD], 27.1±7.5) and about 30% and 5% of cancer survivors experienced mild and severe financial toxicity, respectively. Younger age, lower education, lower household income was associated with higher financial toxicity.
Conclusion
The COST-K is a valid and reliable instrument for measuring financial toxicity in disease-free breast cancer survivors. Considering its impact on the health-related quality of life, more studies need to be conducted to evaluate financial toxicity in cancer survivors and design interventions.

Citations

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  • Severity of Financial Toxicity for Patients Receiving Palliative Radiation Therapy
    Jeremy P. Harris, Eric Ku, Garrett Harada, Sophie Hsu, Elaine Chiao, Pranathi Rao, Erin Healy, Misako Nagasaka, Jessica Humphreys, Michael A. Hoyt
    American Journal of Hospice and Palliative Medicine®.2024; 41(6): 592.     CrossRef
  • Financial Toxicity in Radiation Oncology: Impact for Our Patients and for Practicing Radiation Oncologists
    Victoria S. Wu, Xinglei Shen, Janet de Moor, Fumiko Chino, Jonathan Klein
    Advances in Radiation Oncology.2024; 9(3): 101419.     CrossRef
  • Measures of financial toxicity in cancer survivors: a systematic review
    L. B. Thomy, M. Crichton, L. Jones, P. M. Yates, N. H. Hart, L. G. Collins, R. J. Chan
    Supportive Care in Cancer.2024;[Epub]     CrossRef
  • Validation of the COmprehensive Score for Financial Toxicity (COST) in Vietnamese patients with cancer
    Binh Thang Tran, Dinh Duong Le, Thanh Gia Nguyen, Minh Tu Nguyen, Minh Hanh Nguyen, Cao Khoa Dang, Dinh Trung Tran, Le An Pham
    PLOS ONE.2024; 19(6): e0306339.     CrossRef
  • Comprehensive Score for Financial Toxicity and Health-Related Quality of Life in Patients With Cancer and Survivors: A Systematic Review and Meta-Analysis
    Stevanus Pangestu, Fanni Rencz
    Value in Health.2023; 26(2): 300.     CrossRef
  • Association between financial toxicity and health-related quality of life of patients with gynecologic cancer
    Yusuke Kajimoto, Kazunori Honda, Shiro Suzuki, Masahiko Mori, Hirofumi Tsubouchi, Kohshiro Nakao, Anri Azuma, Takashi Shibutani, Shoji Nagao, Takahiro Koyanagi, Izumi Kohara, Shuko Tamaki, Midori Yabuki, Lida Teng, Keiichi Fujiwara, Ataru Igarashi
    International Journal of Clinical Oncology.2023; 28(3): 454.     CrossRef
  • Financial Toxicity Following Cancer in a Middle-Income Country with a Pluralistic Health System: Validation of the COST Questionnaire
    Veni V. Sakti, Mahmoud Danaee, Cheng-Har Yip, Ros S. A. Bustamam, Marniza Saad, Gin Gin Gan, Jerome Tan, Yueh Ni Lim, Flora L.T. Chong, Murallitharan Munisamy, Farahida Mohd Farid, Boon Lui Sew, Yek-Ching Kong, Nishalini Muniandy, Nirmala Bhoo-Pathy
    Cancer Care Research Online.2023; 3(3): e044.     CrossRef
  • Financial Toxicity Among Breast Cancer Patients
    Yi Kuang, Xiaoyi Yuan, Zheng Zhu, Weijie Xing
    Cancer Nursing.2023;[Epub]     CrossRef
  • Heterogeneity of financial toxicity and associated risk factors for older cancer survivors in China
    Mingzhu Su, Siqi Liu, Li Liu, Fang Wang, Jiahui Lao, Xiaojie Sun
    iScience.2023; 26(10): 107768.     CrossRef
  • Evaluation of financial toxicity and associated factors in female patients with breast cancer: a systematic review and meta-analysis
    Yusuf Çeli̇k, Sevilay Şenol Çeli̇k, Seda Sarıköse, Hande Nur Arslan
    Supportive Care in Cancer.2023;[Epub]     CrossRef
  • Validity of the COmprehensive Score for financial Toxicity (COST) in patients with gynecologic cancer
    Yusuke Kajimoto, Takashi Shibutani, Shoji Nagao, Satoshi Yamaguchi, Shiro Suzuki, Masahiko Mori, Hirofumi Tsubouchi, Kohshiro Nakao, Anri Azuma, Takahiro Koyanagi, Izumi Kohara, Shuko Tamaki, Midori Yabuki, Lida Teng, Kazunori Honda, Ataru Igarashi
    International Journal of Gynecologic Cancer.2022; : ijgc-2022-003410.     CrossRef
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General
Validation of Cancer Diagnosis Based on the National Health Insurance Service Database versus the National Cancer Registry Database in Korea
Min Soo Yang, Minae Park, Joung Hwan Back, Gyeong Hyeon Lee, Ji Hye Shin, Kyuwoong Kim, Hwa Jeong Seo, Young Ae Kim
Cancer Res Treat. 2022;54(2):352-361.   Published online August 2, 2021
DOI: https://doi.org/10.4143/crt.2021.044
AbstractAbstract PDFPubReaderePub
Purpose
This study aimed to assess the feasibility of operational definitions of cancer patients in conducting cancer-related studies using the claims data from the National Health Insurance Service (NHIS).
Materials and Methods
Cancer incidence data were obtained from the Korean Central Cancer Registry, the NHIS primary diagnosis, and from the rare and intractable disease (RID) registration program.
Results
The operational definition with higher sensitivity for cancer patient verification was different by cancer type. Using primary diagnosis, the lowest sensitivity was found in colorectal cancer (91.5%; 95% confidence interval [CI], 91.7 to 92.0) and the highest sensitivity was found in breast cancer (97.9%; 95% CI, 97.8 to 98.0). With RID, sensitivity was the lowest in liver cancer (91.9%; 95% CI, 91.7 to 92.0) and highest in breast cancer (98.1%; 95% CI, 98.0 to 98.2). In terms of the difference in the date of diagnosis in the cancer registration data, > 80% of the patients showed a < 31-day difference from the RID definition.
Conclusion
Based on the NHIS data, the operational definition of cancer incidence is more accurate when using the RID registration program claims compared to using the primary diagnosis despite the relatively lower concordance by cancer type requires additional definitions such as treatment.

Citations

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    Hyeok-Hee Lee, Hokyou Lee, Deepak L Bhatt, Ga Bin Lee, Jiyen Han, Dong Wook Shin, Danbee Kang, Jong-Chan Youn, Eliseo Guallar, Juhee Cho, Hyeon Chang Kim
    European Heart Journal.2024; 45(2): 132.     CrossRef
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    Jong-Su Kim, Minae Park, Sojeong Park, Juhee Chae, Yoon-Ho Hong, Kyung Seok Park, Jung-Joon Sung, Seok-Jin Choi
    Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration.2024; 25(3-4): 271.     CrossRef
  • Impact of coronavirus disease 2019 on cancer care: How the pandemic has changed cancer utilization and expenditures
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    PLOS ONE.2024; 19(2): e0296808.     CrossRef
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    BMJ Open Diabetes Research & Care.2024; 12(1): e003696.     CrossRef
  • Association between age-related macular degeneration and risk of incident cancer
    Junhee Park, Wonyoung Jung, Kyungdo Han, Bongseong Kim, Seung-Yeon Lee, Je Moon Yoon, Dong Hui Lim, Dong Wook Shin
    British Journal of Ophthalmology.2024; 108(9): 1249.     CrossRef
  • Association between low-dose aspirin and the risk of gastric cancer and adenoma according to a family history of gastric cancer
    Yoon Suk Jung, Mai Thi Xuan Tran, Boyoung Park, Chang Mo Moon
    Digestive and Liver Disease.2024; 56(9): 1614.     CrossRef
  • Metabolic dysfunction-associated steatotic liver disease and risk of esophageal cancer in patients with diabetes mellitus: a nationwide cohort study
    Yeong Jeong Jeon, Kyungdo Han, Seung Woo Lee, Ji Eun Lee, Junhee Park, In Young Cho, Jong Ho Cho, Dong Wook Shin
    Diseases of the Esophagus.2024;[Epub]     CrossRef
  • Temporal Trend in Uptake of the National General Health Checkups and Cancer Screening Program among Korean Women with Breast Cancer
    Thi Xuan Mai Tran, Soyeoun Kim, Chihwan Cha, Boyoung Park
    Cancer Research and Treatment.2024; 56(2): 522.     CrossRef
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    Wonyoung Jung, In Young Cho, Jinhyung Jung, Mi Hee Cho, Hye Yeon Koo, Yong-Moon Mark Park, Jong-Ha Baek, Kyungdo Han, Dong Wook Shin
    Journal of Cancer Survivorship.2024;[Epub]     CrossRef
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    Cancer.2024; 130(16): 2873.     CrossRef
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    Gastric Cancer.2024; 27(6): 1169.     CrossRef
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    Cancers.2024; 16(18): 3173.     CrossRef
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    Clinical Hypertension.2024;[Epub]     CrossRef
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    JAMA Network Open.2024; 7(10): e2437867.     CrossRef
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    The British Journal of Psychiatry.2024; : 1.     CrossRef
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    Cancer Medicine.2024;[Epub]     CrossRef
  • Effects of Smoking Behavior Change on Diabetes Incidence after Cancer Development: A Nationwide Cohort Study
    Mi Hee Cho, Jinhyung Jung, Hye Yeon Koo, Wonyoung Jung, Kyungdo Han, In Young Cho, Dong Wook Shin
    Diabetes & Metabolism.2024; : 101604.     CrossRef
  • Persisting Chronic Periodontal Disease as a Risk Factor for Cardiovascular Disease: A Nationwide Population‐Based Cohort Study
    Jung‐Hyun Park, Gwang Hyun Leem, Jin‐Woo Kim, Tae‐Jin Song
    Journal of Clinical Periodontology.2024;[Epub]     CrossRef
  • Cancer Risk According to Alcohol Consumption Trajectories: A Population-based Cohort Study of 2.8 Million Korean Men
    Thi Tra Bui, Minji Han, Ngoc Minh Luu, Thi Phuong Thao Tran, Min Kyung Lim, Jin-Kyoung Oh
    Journal of Epidemiology.2023; 33(12): 624.     CrossRef
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    Jang Ho Lee, Hyung Jun Park, Seonok Kim, Ye-Jee Kim, Ho Cheol Kim
    BMC Pulmonary Medicine.2023;[Epub]     CrossRef
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    Cancers.2023; 15(4): 1209.     CrossRef
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    Cancers.2023; 15(5): 1604.     CrossRef
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    Thi Xuan Mai Tran, Soyeoun Kim, Boyoung Park
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    Jihun Kang, Taeyun Kim, Kyung-Do Han, Jin-Hyung Jung, Su-Min Jeong, Yo Hwan Yeo, Kyuwon Jung, Hyun Lee, Jong Ho Cho, Dong Wook Shin
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    Danbee Kang, Minwoong Kang, Yun Soo Hong, Jihwan Park, Jin Lee, Hwa Jeong Seo, Dong Wook Kim, Jin Seok Ahn, Yeon Hee Park, Se Kyung Lee, Dong Wook Shin, Eliseo Guallar, Juhee Cho
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    Yoon Suk Jung, Mai Thi Xuan Tran, Boyoung Park, Chang Mo Moon
    American Journal of Gastroenterology.2022; 117(8): 1255.     CrossRef
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    American Journal of Preventive Medicine.2022; 63(6): 894.     CrossRef
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    Sung Yeon Hong, Mee Joo Kang, Taegyu Kim, Kyu-Won Jung, Bong-Wan Kim
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    Yoon Suk Jung, Huiyeon Song, Mai Thi Xuan Tran, Boyoung Park, Chang Mo Moon
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  • The Association Between Metabolic Syndrome and Colorectal Cancer Risk by Obesity Status in Korean Women: A Nationwide Cohort Study
    Seong-geun Moon, Boyoung Park
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    Soyeoun Kim, Thi Xuan Mai Tran, Huiyeon Song, Boyoung Park
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Validation of the Korean Version of the Patient-Reported Outcomes Measurement Information System 29 Profile V2.1 among Cancer Survivors
Danbee Kang, Youngha Kim, Jihyun Lim, Junghee Yoon, Sooyeon Kim, Eunjee Kang, Heesu Nam, Sungkeun Shim, Mangyeong Lee, Haesook Bok, Sang-Won Lee, Soo-Yong Shin, Jin Seok Ahn, Dongryul Oh, Juhee Cho
Cancer Res Treat. 2022;54(1):10-19.   Published online April 9, 2021
DOI: https://doi.org/10.4143/crt.2020.1200
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
The purpose of the study was to validate the Korean version of Patient-Reported Outcomes Measurement Information System 29 Profile v2.1 (K-PROMIS-29 V2.1) among cancer survivors.
Materials and Methods
Participants were recruited from outpatient clinics of the Comprehensive Cancer Center at the Samsung Medical Center in Seoul, South Korea, from September to October 2018. Participants completed a survey questionnaire that included the K-PROMIS-29 V2.1 and the European Organisation for Research and Treatment of Cancer Quality of Life Core Questionnaire (EORTC QLQ-C30). Principal component analysis and confirmatory factor analysis (CFA) and Pearson’s correlations were used to evaluate the reliability and validity of the K-PROMIS-29 V2.1.
Results
The mean age of the study participants was 54.4 years, the mean time since diagnosis was 1.2 (±2.4) years, and 349 (87.3%) completed the entire questionnaire. The Cronbach’s alpha coefficients of the seven domains in the K-PROMIS-29 V2.1 ranged from 0.81 to 0.96, indicating satisfactory internal consistency. In the CFA, the goodness-of-fit indices for the K-PROMIS-29 V2.1 were high (comparative fit index, 0.91 and standardized root-mean-squared residual, 0.06). High to moderate correlations were found between comparable subscales of the K-PROMIS-29 V2.1 and subscales of the EORTC QLQ-C30 (r=0.52-0.73).
Conclusion
The K-PROMIS-29 V2.1 is a reliable and valid measure for assessing the health-related quality of life domains in a cancer population, thus supporting their use in studies and oncology trials.

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  • Path analysis of illness uncertainty and psychosocial adaptation of patients with Marfan syndrome
    Sujin Kim, Yeonsoo Jang, JiYeon Choi, Kijun Song, Jae-kwan Song, Mona Choi
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Gastrointestinal Cancer
Development and Validation of a Symptom-Focused Quality of Life Questionnaire (KOQUSS-40) for Gastric Cancer Patients after Gastrectomy
Bang Wool Eom, Joongyub Lee, In Seob Lee, Young-Gil Son, Keun Won Ryu, Sung Geun Kim, Hyoung-Il Kim, Young-Woo Kim, Seong-Ho Kong, Oh Kyoung Kwon, Ji-Ho Park, Ji Yeong An, Chang Hyun Kim, Byoung-Jo Suh, Hong Man Yoon, Myoung Won Son, Ji Yeon Park, Jong-Min Park, Sang-Ho Jeong, Moon-Won Yoo, Geum Jong Song, Han-Kwang Yang, Yun-Suhk Suh, Ki Bum Park, Sang-Hoon Ahn, Dong Woo Shin, Ye Seob Jee, Hye-Seong Ahn, Sol Lee, Jae Seok Min, Haejin In, Ahyoung Kim, Hoon Hur, Hyuk-Joon Lee, on behalf of KOrean QUality of life in Stomach cancer patients Study group (KOQUSS)
Cancer Res Treat. 2021;53(3):763-772.   Published online December 29, 2020
DOI: https://doi.org/10.4143/crt.2020.1270
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
Patients who have undergone gastrectomy have unique symptoms that are not appropriately assessed using currently available tools. This study developed and validated a symptom-focused quality of life (QoL) questionnaire for patients who have received gastrectomy for gastric cancer. Materials and Methods Based on a literature review, patient interviews, and expert consultation by the KOrean QUality of life in Stomach cancer patients Study group (KOQUSS), the initial item pool was developed. Two large-scale developmental studies were then sequentially conducted for exploratory factor analyses for content validity and item reduction. The final item pool was validated in a separate cohort of patients and assessed for internal consistency, test-retest reliability, construct validity, and clinical validity.
Results
The initial questionnaire consisted of 46-items in 12 domains. Data from 465 patients at 11 institutions, followed by 499 patients at 13 institutions, were used to conduct item reduction and exploratory factor analyses. The final questionnaire (KOQUSS-40) comprised 40 items within 11 domains. Validation of KOQUSS-40 was conducted on 413 patients from 12 hospitals. KOQUSS-40 was found to have good model fit. The mean summary score of the KOQUSS-40 was correlated with the EORTC QLQ-C30 and STO22 (correlation coefficients, 0.821 and 0.778, respectively). The KOQUSS-40 score was also correlated with clinical factors, and had acceptable internal consistency (> 0.7). Test-retest reliability was greater than 0.8. Conclusion The KOQUSS-40 can be used to assess QoL of gastric cancer patients after gastrectomy and allows for a robust comparison of surgical techniques in clinical trials.

Citations

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  • Function Preserving Gastrectomy and Quality of Life
    Jeesun Kim, Hyuk-Joon Lee
    Journal of Gastric Cancer.2025; 25(1): 247.     CrossRef
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    Xiaoqin Wang, Caihua Wang, Wenjin Han, Jiaru Sun, Zhaozhao Hui, Shuangyan Lei, Huili Wu, Xiaohong Liu
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    Ji-Hyeon Park, Hyuk-Joon Lee, JeeSun Kim, Yo-Seok Cho, Sunjoo Lee, Seongmin Park, Hwinyeong Choe, Eunhwa Song, Youngran Kim, Seong-Ho Kong, Do Joong Park, Byung-Ho Nam, Han-Kwang Yang
    Journal of Gastric Cancer.2024; 24(4): 420.     CrossRef
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    Jae Kyun Park, Hyuk-Joon Lee
    Foregut Surgery.2023; 3(2): 27.     CrossRef
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    Sin Hye Park, Hong Man Yoon, Keun Won Ryu, Young-Woo Kim, Mira Han, Bang Wool Eom
    Journal of Gastric Cancer.2023; 23(4): 561.     CrossRef
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    Yoshimasa Akashi, Koichi Ogawa, Katsuji Hisakura, Tsuyoshi Enomoto, Yusuke Ohara, Yohei Owada, Shinji Hashimoto, Kazuhiro Takahashi, Osamu Shimomura, Manami Doi, Yoshihiro Miyazaki, Kinji Furuya, Shoko Moue, Tatsuya Oda
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  • Systematic review of health-related quality of life (HRQoL) issues associated with gastric cancer: capturing cross-cultural differences
    Alison Rowsell, Samantha C. Sodergren, Vassilios Vassiliou, Anne-Sophie Darlington, Marianne G. Guren, Bilal Alkhaffaf, Chantelle Moorbey, Kristopher Dennis, Mitsumi Terada
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    Rui Xu, Qiong Gu, Shuomeng Xiao, Ping Zhao, Zhi Ding
    Frontiers in Oncology.2022;[Epub]     CrossRef
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    Bang Wool Eom, Dong-Hoe Koo, Ji Yeong An, Han Hong Lee, Hyoung-Il Kim, Hoon Hur, Moon-Won Yoo, Min-Hee Ryu, Hyuk-Joon Lee, Su Mi Kim, Ji-Ho Park, Jae Seok Min, Kyung Won Seo, Sang-Ho Jeong, Oh Jeong, Oh Kyoung Kwon, Seung Wan Ryu, Chang Hak Yoo, Jae Moon
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Head and Neck Cancer
Development and Validation of Web-Based Nomograms to Precisely Predict Survival Outcomes of Non-metastatic Nasopharyngeal Carcinoma in an Endemic Area
Ji-Jin Yao, Li Lin, Tian-Sheng Gao, Wang-Jian Zhang, Wayne R. Lawrence, Jun Ma, Ying Sun
Cancer Res Treat. 2021;53(3):657-670.   Published online December 7, 2020
DOI: https://doi.org/10.4143/crt.2020.899
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
This study aimed to develop web-based nomograms to precisely predict survival outcomes in patients with non-metastatic nasopharyngeal carcinoma (NPC) in an endemic area.
Materials and Methods
A total of 10,126 patients who underwent radical intensity-modulated radiotherapy at Sun Yat-sen University Cancer Center (SYSUCC) from 2009 to 2015 were analyzed. We assigned patients into a training cohort (SYSUCC-A, n=6,751) and an internal validation cohort (SYSUCC-B, n=3,375) based on computer-generated random numbers. Patients collected from Wuzhou Red Cross Hospital (WZRCH) between 2012 and 2015 were used as the independent external validation cohort (WZRCH, n=450). Concordance index (C-index) was used to determine predictive accuracy and discriminative ability for the nomogram. The web-based clinicopathologic prediction models for predicting survival were based on Cox regression.
Results
The C-indexes for SYSUCC-A, SYSUCC-B, and WZRCH cohorts for the established nomograms to predict 3-year overall survival (OS) was 0.736, 0.715, and 0.691. Additionally, C-indexes to predict 3-year distant metastasis-free survival (DMFS) was 0.717, 0.706, and 0.686, disease-free survival (DFS) was 0.713, 0.697, and 0.656, local relapse-free survival was 0.695, 0.684, and 0.652, and regional relapse-free survival was 0.672, 0.650, and 0.616. The calibration plots showed great agreement between nomogram-predicted 3-year survival outcomes and actual 3-year survival outcomes. Moreover, C-indexes of the nomograms for OS, DMFS, and DFS were significantly superior than TNM stage (p< 0.001 for all).
Conclusion
These user-friendly nomograms can precisely predict survival endpoints in patients with non-metastatic NPC. They may serve as a useful tool for providing patient counseling and help physicians to make individual follow-up plans.

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Urologic cancer
External Validation of the Long Short-Term Memory Artificial Neural Network-Based SCaP Survival Calculator for Prediction of Prostate Cancer Survival
Bumjin Lim, Kwang Suk Lee, Young Hwa Lee, Suah Kim, Choongki Min, Ju-Young Park, Hye Sun Lee, Jin Seon Cho, Sun Il Kim, Byung Ha Chung, Choung-Soo Kim, Kyo Chul Koo
Cancer Res Treat. 2021;53(2):558-566.   Published online October 6, 2020
DOI: https://doi.org/10.4143/crt.2020.637
AbstractAbstract PDFPubReaderePub
Purpose
Decision-making for treatment of newly diagnosed prostate cancer (PCa) is complex due to the multiple initial treatment modalities available. We aimed to externally validate the SCaP (Severance Study Group of Prostate Cancer) Survival Calculator that incorporates a long short-term memory artificial neural network (ANN) model to estimate survival outcomes of PCa according to initial treatment modality. Materials and Methods The validation cohort consisted of clinicopathological data of 4,415 patients diagnosed with biopsy-proven PCa between April 2005 and November 2018 at three institutions. Area under the curves (AUCs) and time-to-event calibration plots were utilized to determine the predictive accuracies of the SCaP Survival Calculator in terms of progression to castration-resistant PCa (CRPC)–free survival, cancer-specific survival (CSS), and overall survival (OS). Results Excellent discrimination was observed for CRPC-free survival, CSS, and OS outcomes, with AUCs of 0.962, 0.944, and 0.884 for 5-year outcomes and 0.959, 0.928, and 0.854 for 10-year outcomes, respectively. The AUC values were higher for all survival endpoints compared to those of the development cohort. Calibration plots showed that predicted probabilities of 5-year survival endpoints had concordance comparable to those of the observed frequencies. However, calibration performances declined for 10-year predictions with an overall underestimation. Conclusion The SCaP Survival Calculator is a reliable and useful tool for determining the optimal initial treatment modality and for guiding survival predictions for patients with newly diagnosed PCa. Further modifications in the ANN model incorporating cases with more extended follow-up periods are warranted to improve the ANN model for long-term predictions.

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Validation of the 8th AJCC Cancer Staging System for Pancreas Neuroendocrine Tumors Using Korean Nationwide Surgery Database
Yunghun You, Jin-Young Jang, Song Cheol Kim, Yoo-Seok Yoon, Joon Seong Park, Chol Kyoon Cho, Sang-Jae Park, Jae Do Yang, Woo Jung Lee, Tae Ho Hong, Keun Soo Ahn, Chi-Young Jeong, Hyeon Kook Lee, Seung Eun Lee, Young Hoon Roh, Hee Joon Kim, Hongbeom Kim, In Woong Han
Cancer Res Treat. 2019;51(4):1639-1652.   Published online April 19, 2019
DOI: https://doi.org/10.4143/crt.2019.023
AbstractAbstract PDFPubReaderePub
Purpose
The 8th edition of the American Joint Committee on Cancer (AJCC) staging system for pancreatic neuroendocrine tumor (PNET) included several significant changes. We aim to evaluate this staging system compared to the 7th edition AJCC staging system and European Neuroendocrine Tumors Society (ENETS) system.
Materials and Methods
We used Korean nationwide surgery database (2000-2014). Of 972 patients who had undergone surgery for PNET, excluding patients diagnosed with ENETS/World Health Organization 2010 grade 3 (G3), only 472 patients with accurate stage were included.
Results
Poor discrimination in overall survival rate (OSR) was noted between AJCC 8th stage III and IV (p=0.180). The disease-free survival (DFS) curves of 8th AJCC classification were well separated between all stages. Compared with stage I, the hazard ratio of II, III, and IV was 3.808, 13.928, and 30.618, respectively (p=0.007, p < 0.001, and p < 0.001). The curves of OSR and DFS of certain prognostic group in AJCC 7th and ENETS overlapped. In ENETS staging system, no significant difference in DFS between stage IIB versus IIIA (p=0.909) and IIIA versus IIIB (p=0.291). In multivariable analysis, lymphovascular invasion (p=0.002), perineural invasion (p=0.003), and grade (p < 0.001) were identified as independent prognostic factors for DFS.
Conclusion
This is the first large-scale validation of the AJCC 8th edition staging system for PNET. The revised 8th system provides better discrimination compared to that of the 7th edition and ENETS TNM system. This supports the clinical use of the system.

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Prospective Validation of The Korean Cancer Study Group Geriatric Score (KG)-7, a Novel Geriatric Screening Tool, in Older Patients with Advanced Cancer Undergoing First-line Palliative Chemotherapy
Jin Won Kim, Se Hyun Kim, Yun-Gyoo Lee, In Gyu Hwang, Jin Young Kim, Su-Jin Koh, Yoon Ho Ko, Seong Hoon Shin, In Sook Woo, Soojung Hong, Tae-Yong Kim, Ji Yeon Baek, Hyun Jung Kim, Hyo Jung Kim, Myung Ah Lee, Jung Hye Kwon, Yong Sang Hong, Hun-Mo Ryoo, Kyung Hee Lee, Jee Hyun Kim
Cancer Res Treat. 2019;51(3):1249-1256.   Published online January 2, 2019
DOI: https://doi.org/10.4143/crt.2018.451
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
The purpose of this study was to prospectively validate the Korean Cancer Study Group Geriatric Score (KG)-7, a novel geriatric screening tool, in older patients with advanced cancer planned to undergo first-line palliative chemotherapy.
Materials and Methods
Participants answered the KG-7 questionnaire before undergoing geriatric assessment (GA) and first-line palliative chemotherapy. The performance of KG-7 was evaluated by calculating the sensitivity (SE), specificity (SP), positive and negative predictive value (PPV and NPV), balanced accuracy (BA), and area under the curve (AUC).
Results
The baseline GA and KG-7 results were collected from 301 patients. The median age was 75 years (range, 70 to 93 years). Abnormal GA was documented in 222 patients (73.8%). Based on the ≤ 5 cut-off value of KG-7 for abnormal GA, abnormal KG-7 score was shown in 200 patients (66.4%). KG-7 showed SE, SP, PPV, NPV, and BA of 75.7%, 59.7%, 84.4%, 46.0%, and 67.7%, respectively; AUC was 0.745 (95% confidence interval, 0.687 to 0.803). Furthermore, patients with higher KG-7 scores showed significantly longer survival (p=0.006).
Conclusion
KG-7 appears to be adequate in identifying patients with abnormal GA prospectively. Hence, KG-7 can be a useful screening tool for Asian countries with limited resources and high patient volume.

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Application of the International Metastatic Renal Cell Carcinoma Database Consortium and Memorial Sloan Kettering Cancer Center Risk Models in Patients with Metastatic Non-Clear Cell Renal Cell Carcinoma: A Multi-Institutional Retrospective Study Using the Korean Metastatic Renal Cell Carcinoma Registry
Jung Kwon Kim, Sung Han Kim, Mi Kyung Song, Jungnam Joo, Seong Il Seo, Cheol Kwak, Chang Wook Jeong, Cheryn Song, Eu Chang Hwang, Ill Young Seo, Hakmin Lee, Sung-Hoo Hong, Jae Young Park, Jinsoo Chung, Korean Renal Cell Carcinoma Study Group
Cancer Res Treat. 2019;51(2):758-768.   Published online September 7, 2018
DOI: https://doi.org/10.4143/crt.2018.421
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
The International Metastatic Renal Cell Carcinoma Database Consortium (IMDC) and the Memorial Sloan Kettering Cancer Center (MSKCC) risk models were developed predominantly with clear cell renal cell carcinoma (RCC). Accordingly, whether these two models could be applied to metastatic non-clear cell RCC (mNCCRCC) as well has not been well-known and was investigated herein.
Materials and Methods
From the Korean metastatic RCC registry, a total of 156 patients (8.1%) with mNCCRCC among the entire cohort of 1,922 patients were analyzed. Both models were applied to predict first-line progression-free survival (PFS), total PFS, and cancer-specific survival (CSS).
Results
The median first-line PFS, total PFS, and CSS were 5, 6, and 24 months, respectively. The IMDC risk model reliably discriminated three risk groups to predict survival: the median firstline PFS, total PFS, and CSS for the favorable, intermediate, and poor risk groups were 9, 5, and, 2 months (p=0.001); 14, 7, and 2 months (p < 0.001); and 41, 21, and 8 months (p < 0.001), all respectively. The MSKCC risk model also reliably differentiated three risk groups: 9, 5, and, 2 months (p=0.005); 10, 7, and 3 months (p=0.002); and 50, 21, and 8 months (p < 0.001), also all respectively. The concordance indices were 0.632 with the IMDC model and 0.643 with the MSKCC model for first-line PFS: 0.748 and 0.655 for CSS.
Conclusion
The current IMDC and MSKCC risk models reliably predict first-line PFS, total PFS, and CSS in mNCCRCC.

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    Joongwon Choi, Seokhwan Bang, Jungyo Suh, Chang Il Choi, Wan Song, Hyeong Dong Yuk, Chan Ho Lee, Minyong Kang, Seol Ho Choo, Jung Kwon Kim, Hyung Ho Lee, Jung Ki Jo, Eu Chang Hwang, Chang Wook Jeong, Young Hwii Ko, Jae Young Park, Cheryn Song, Seong Il Se
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    Ömer Faruk ELÇİÇEK, Mehmet KÜÇÜKÖNER
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    Jung Kwon Kim, Sangchul Lee, Sung Kyu Hong, Cheol Kwak, Chang Wook Jeong, Seok Ho Kang, Sung-Hoo Hong, Yong-June Kim, Jinsoo Chung, Eu Chang Hwang, Tae Gyun Kwon, Seok-Soo Byun, Yu Jin Jung, Junghyun Lim, Jiyeon Kim, Hyeju Oh
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    Ilya Tsimafeyeu, Oxana Shatkovskaya, Sergei Krasny, Nurzhan Nurgaliev, Ilya Varlamov, Vladislav Petkau, Sufia Safina, Ruslan Zukov, Mikhail Mazhbich, Galina Statsenko, Sergey Varlamov, Olga Novikova, Igor Zaitsev, Pavel Moiseyev, Alexander Rolevich, Alesy
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    Ismail Selvi, Umut Demirci, Nazan Bozdogan, Halil Basar
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    I. V. Tsimafeyeu, I. S. Varlamov, V. V. Petkau, S. Z. Safina, R. A. Zukov, M. S. Mazhbich, G. B. Statsenko, S. A. Varlamov, I. V. Zaitsev, O. Yu. Novikova, S. А. Krasny, N. S. Nurgaliyev, I. L. Popova, L. Yu. Vladimirova
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Development and Evaluation of a Korean Version of a Thyroid-Specific Quality-of-Life Questionnaire Scale in Thyroid Cancer Patients
Chang Hwan Ryu, Boram Park, Junsun Ryu, Youn Mi Ryu, Seong Ae Jo, You Jin Lee, Eun-Kyung Lee, Yul Hwangbo, Jungnam Joo, Yuh-Seog Jung
Cancer Res Treat. 2018;50(2):405-415.   Published online May 26, 2017
DOI: https://doi.org/10.4143/crt.2017.012
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
The purpose of this study was to develop a Korean version of the self-reported thyroid-specific quality of life (QoL) questionnaire for thyroid cancer patients (KT-QoL), and to evaluate its reliability and validity.
Materials and Methods
Two hundred seventy-two patients who underwent thyroidectomy from January to December 2010 were recruited in this study. The original version of the thyroid QoL was translated into Korean and evaluated for its reliability and validity. Using the developed KT-QoL, the postoperative QoL was evaluated until postoperative 1 year.
Results
At the preoperative baseline, the item internal consistency (IIC) ranged from ‒0.19 to 0.76, with low IIC values for items 2, 17, and 27. Item discriminant validity ranged from 86% to 97%. These values were similar at the postoperative periods. The internal consistency reliability (Cronbach’s α) was high for all dimensions, ranging from 0.90 to 0.95. The test-retest reliability (intraclass correlation coefficient) was acceptable (0.74-0.82). The external validity examined by the correlation between the item 1j (voice changes) of KT-QoL and the voice handicap index-30 ranged from 0.51 to 0.75. Patients’ QoL scores decreased after surgery, which demonstrated the sensitivity of the questionnaire. The QoL scores in patients with lobectomy showed best QoL scores postoperatively and those with receiving radioactive iodine still showed decreased QoL scores along the postoperative periods.
Conclusion
These results demonstrate that KT-QoL is a valid instrument for evaluating QoL of Korean patients with thyroid cancer.

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Validation of the Korean Version of the Quality of Life–Cancer Survivors (QOL-CS-K) Questionnaire in Lymphoma Survivors
Juhee Cho, Danbee Kang, Im Ryung Kim, Won Seog Kim, Betty Ferrell, Seok Jin Kim
Cancer Res Treat. 2018;50(1):204-211.   Published online March 30, 2017
DOI: https://doi.org/10.4143/crt.2017.091
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
The objective of this study was to validate the Korean version of the Quality of Life–Cancer Survivors (QOL-CS-K) in a sample of lymphoma survivors.
Materials and Methods
We conducted a cross-sectional survey of lymphoma survivors who had survived for at least 24 months since diagnosis. Participants were recruited at the outpatient clinics and at a hospital event in a tertiary hospital in Seoul, Korea. Survivors were asked to complete the QOLCS-K and the European Organization for Research and Treatment of Cancer Quality of Life Core Questionnaire (EORTC QLQ-C30) questionnaires. To determine test-retest reliability, a second questionnaire was sent to participants who completed the first questionnaire adequately. Exploratory factor analysis and Pearson’s correlations were used for evaluating reliability and validity of the QOL-CS-K.
Results
Among 257 survivors, 245 (95.3%) completed all questionnaires and had no missing data. The mean age of study participants was 52.2 years, 54.9% were men, and the mean time since diagnosis was 4.0±1.6 years. The Cronbach’s α for the overall QOL-CS-K was 0.90, and the α coefficients for each subscale ranged from 0.73 to 0.83. The test and retest reliability was 0.88. Moderate correlations were found between comparable subscales of the QOL-CS-K and subscales of the EORTC QLQ-C30 (r=0.51-0.55) except for the spiritual well-being subscale of the QOL-CS-K, which did not correlate with any of the EORTC QLQ-C30 subscales (–0.08 to 0.16).
Conclusion
The QOL-CS-K is a reliable and valid scale for measuring the QOL in long-term lymphoma survivors.

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  • Measuring patient‐reported distress from breast magnetic resonance imaging: Development and validation of the MRI‐related distress scale (MRI‐DS)
    Danbee Kang, Sooyeon Kim, Jiyoon Han, Youngha Kim, Juhee Cho, Jeong Eon Lee, Eun Sook Ko
    Cancer Medicine.2024;[Epub]     CrossRef
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    Yi-Cheng Hu, Shih-Ying Chen, Wen-Chi Chou, Jen-Shi Chen, Li-Chueh Weng, Pei-Kwei Tsay, Woung-Ru Tang, Chong-Chi Chiu
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    Ka Ryeong Bae, Danbee Kang, Jae Yoon Yi, Yeojin Ahn, Im-Ryung Kim, Sun-Seog Kweon, Jin Seok Ahn, Seok Jin Nam, Young Mog Shim, Mison Chun, Jaesung Heo, Juhee Cho
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    Danbee Kang, Juhee Cho, Im Ryung Kim, Mi Kyung Kim, Won Seog Kim, Seok Jin Kim
    Cancer Research and Treatment.2018; 50(4): 1051.     CrossRef
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Prognostic Factors and Scoring Model for Survival in Metastatic Biliary Tract Cancer
Hyung Soon Park, Ji Soo Park, You Jin Chun, Yun Ho Roh, Jieun Moon, Hong Jae Chon, Hye Jin Choi, Joon Seong Park, Dong Ki Lee, Se-Joon Lee, Dong Sup Yoon, Hei-Cheul Jeung
Cancer Res Treat. 2017;49(4):1127-1139.   Published online February 6, 2017
DOI: https://doi.org/10.4143/crt.2016.538
AbstractAbstract PDFSupplementary MaterialPubReaderePub
Purpose
Metastatic biliary tract cancer (mBTC) has a dismal prognosis. In this study, an independent dataset of patients with mBTC was used to implement and validate a routine clinico-laboratory parameter-based scoring model for risk group identification.
Materials and Methods
From September 2006 to February 2015, 482 patients with mBTC were assigned randomly (ratio, 7:3) into investigational (n=340) and validation datasets (n=142). The continuous variables were dichotomized using a normal range or the best cutoff values determined using the Contal and O'Quigley statistical methods. Following a Cox’s proportional hazard model, the scoring model was derived by summing the rounded chi-square scores for the factors identified by multivariate analysis.
Results
The performance status (Eastern Cooperative Oncology Group 3-4), hypoalbuminemia (< 3.4 mg/dL), carcinoembryonic antigen (≥ 9 ng/mL), neutrophil-to-lymphocyte ratio (≥ 3.0), and carbohydrate antigen 19-9 (≥ 120 U/mL) were identified as independent prognosticators (Harrell’s C index, 0.682; integrated area under the curve, 0.653). Survival was clearly correlated with the risk groups (low, intermediate, and high, 14.0, 7.3, and 2.3 months, respectively; p < 0.001). The prognosis was also discriminative in the validation data set (median survival, 16.7, 7.5, and 1.9 months, respectively; p < 0.001). Chemotherapy did not offer any survival benefits for high-risk patients.
Conclusion
These proposed prognostic criteria for mBTC can facilitate accurate patient risk stratification and treatment-related decision-making.

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Identification of Genes Involved in Liver Cancer Cell Growth Using an Antisense Library of Phage Genomic DNA
Yun Han Lee, Young Ho Kim, Jong Gu Park
Cancer Res Treat. 2004;36(4):246-254.   Published online August 31, 2004
DOI: https://doi.org/10.4143/crt.2004.36.4.246
AbstractAbstract PDFPubReaderePub
Purpose

Genes involved in liver cancer cell growth have been identified using an antisense library of large circular (LC-) genomic DNA of a recombinant M13 phage.

Materials and Methods

A subtracted cDNA library was constructed by combining procedures of suppression subtractive hybridization (SSH) and unidirectional cloning of the subtracted cDNA into an M13 phagemid vector. Utilizing the life cycle of M13 bacteriophages, LC-antisense molecules derived from 1,200 random cDNA clones selected by size were prepared from the culture supernatant of bacterial transformants. The antisense molecules were arrayed for transfection on 96-well plates preseeded with HepG2.

Results

When examined for growth inhibition after antisense transfection, 153 out of 1,200 LC-antisense molecules showed varying degrees of growth inhibitory effect to HepG2 cells. Sequence comparison of the 153 clones identified 58 unique genes. The observations were further extended by other cell-based assays.

Conclusion

These results suggest that the LC-antisense library offers potential for unique high-throughput screening to find genes involved in a specific biological function, and may prove to be an effective target validation system for gene-based drug discovery.

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Review Article
Clinical Circulating Tumor DNA Testing for Precision Oncology
Hyunji Kim, Kyoung Un Park
Cancer Res Treat. 2023;55(2):351-366.
DOI: https://doi.org/10.4143/crt.2022.1026
AbstractAbstract PDFPubReaderePub
Circulating tumor DNA (ctDNA) is the portion of the cell-free DNA in the blood of cancer patients released from tumor cells via apoptosis, necrosis, or active release. From 10 mL of blood, the 4-5 mL of plasma obtained from a cancer patient contains 5-10 ng/mL of ctDNA. The plasma contains not only ctDNA of tumor origin, but also DNA from normal cells or clonal hematopoiesis. Another characteristic of ctDNA is its rapid clearance from circulation; it has a half-life of 16 minutes to 2.5 hours. Obtaining reliable results from ctDNA requires the application and approval of standardized clinical validation guidelines; however, the status of numerous ctDNA tests currently varies. The clinical use of ctDNA testing should be carefully considered based on the test’s specific needs and characteristics. Here we provide the different characteristics of ctDNA tests and information regarding their validation and approval status.

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