Purpose There has been accumulating evidence for the preventive effect of high physical activity on cancer. However, it is still unclear which level of physical activity is associated with the decreased risk of pancreatic cancer. The purpose of current study is to assess the association between the frequency of vigorous intensity physical activity and the risk of pancreatic cancer.
Materials and Methods The nationwide retrospective cohort study was conducted using the National Health Information Database. Study participants were 220,357 Koreans who received health check-up in 2009. They were divided into four groups by the weekly frequency of vigorous intensity physical activity longer than 20 minutes (group 1, no vigorous intensity physical activity (reference); group 2, 1-3 days; group 3, 4-5 days and group 4, 6-7 days). Cox proportional hazard model was used to calculate the adjusted hazard ratios (HRs) and 95% confidence interval (CI) for incident pancreatic cancer (adjusted HRs [95% CI]) according to the weekly frequency of vigorous intensity physical activity.
Results For 4.38 years’ follow-up on average, 377 cases of pancreatic cancer developed. Subjects without incident pancreatic cancer had more favorable metabolic condition and higher physical activity than subjects with incident pancreatic cancer. Adjusted HRs and 95% CI indicated that only group 4 was significantly associated with the decreased risk of pancreatic cancer (group 1, reference; group 2, 1.10 [0.86-1.40]; group 3, 0.75 [0.45-1.25] and group 4, 0.47 [0.25-0.89]).
Conclusion In this nationwide representative cohort study, near daily vigorous intensity physical activity showed the preventive effect on pancreatic cancer.
Citations
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Cancer Res Treat. 2019;51(4):1632-1638. Published online April 18, 2019
Purpose
Physician Orders for Life-Sustaining Treatment (POLST) form is a legal document for terminally ill patients to make medical decisions with physicians near the end-of-life. A multicenter prospective study was conducted to evaluate the feasibility of POLST administration in actual oncological practice.
Materials and Methods
Patients with terminal cancer, age ≥ 20 years, and capable of communicating were eligible. The primary endpoint was the completion rate of POLST. Data about physicians’ or patients’ barriers were also collected.
Results
From June to December 2017, 336 patients from seven hospitals were eligible. Median patient age was 66 years (range, 20 to 94 years); 52.7% were male; and 60.4% had poor performance status. Primary cancer sites were hepato-pancreato-biliary (26.2%), lung (23.2%), and gastrointestinal (19.9%). Expected survival duration was 10.6±7.3 weeks, with 41.2% receiving hospice care, 37.9% showing progression after cancer treatment, and the remaining patients were under active treatment (15.8%) or initially diagnosed with terminal cancer (5.1%). POLST forms were introduced to 60.1% of patients, and 31.3% signed the form. Physicians’ barriers were reluctance of family (49.7%), lack of rapport (44.8%), patients’ denial of prognosis (34.3%), lack of time (22.7%), guilty feelings (21.5%), and uncertainty about either prognosis (21.0%) or the right time to discuss POLST (16.6%). The patients’ barriers were the lack of knowledge/understanding of POLST (65.1%), emotional discomfort (63.5%), difficulty in decision-making (66.7%), or denial of prognosis (14.3%).
Conclusion
One-third of patients completed POLST forms, and various barriers were identified. To overcome such barriers, social engagement, education, and systematic support might be necessary.
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