1Division of Oncology/Hematology, Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.
2Department of Radiation Oncology, Korea University College of Medicine, Seoul, Korea.
3Department of Otolaryngology, Korea University College of Medicine, Seoul, Korea.
Copyright © 2008 Korean Cancer Association
Demographics and baseline characteristics for the study population
*head and neck cancer, †squamous cell carcinoma, ‡non-squamous cell carcinoma, §chest x-ray, ∥Fisher's exact test, ¶[56.2 to 72.7], **[56.0 to 73.0], ††[64.0 to 72.2], ‡‡Wilcoxon's rank sum test.
Second primary lung cancer characteristics
*non-small cell lung cancer, †squamous cell carcinoma, ‡small cell lung cancer.
The relationship of second primary lung cancer to stage and EFT according to site of origin of primary HNC
*head and neck cancer, †event free time from HNC to lung cancer, ‡stage of non small cell lung cancer, §stage of small cell lung cancer, ∥Wilcoxon's rank sum test.
Treatments for primary HNCs and second primary lung cancers
*head and neck cancer, †operation, ‡radiotherapy, §Op plus RT, Op plus chemotherapy, or RT plus chemotherapy, ∥Op plus RT or Op plus chemotherapy.
Multivariate analysis of clinical factors related to occurrence of second primary lung cancer
*coefficient, †standard error, ‡odds ratio, §confidence interval, ∥chest x-ray, ¶head and neck cancer.
*head and neck cancer, †squamous cell carcinoma, ‡non-squamous cell carcinoma, §chest x-ray, ∥Fisher's exact test, ¶[56.2 to 72.7], **[56.0 to 73.0], ††[64.0 to 72.2], ‡‡Wilcoxon's rank sum test.
*non-small cell lung cancer, †squamous cell carcinoma, ‡small cell lung cancer.
*head and neck cancer, †event free time from HNC to lung cancer, ‡stage of non small cell lung cancer, §stage of small cell lung cancer, ∥Wilcoxon's rank sum test.
*head and neck cancer, †operation, ‡radiotherapy, §Op plus RT, Op plus chemotherapy, or RT plus chemotherapy, ∥Op plus RT or Op plus chemotherapy.
*coefficient, †standard error, ‡odds ratio, §confidence interval, ∥chest x-ray, ¶head and neck cancer.