Lifestyle factors on the long-term survival of gastric cancer patients after radical resection: A cohort study

Abstract

Background: This retrospective cohort study aimed to evaluate the effect of lifestyle factors (e.g., smoking, drinking, physical exercise, and sleep duration) on the long-term survival of gastric cancer (GC) patients after radical resection. Materials and Methods: GC patients after radical resection were enrolled from January 2016 to December 2017. Their baseline clinical data, lifestyle factors, and prognosis were collected. The primary endpoint was all-cause death. The relationship between the variables and survival was examined using the Cox proportional hazards model. Results: A total of 309 patients were enrolled and 296 patients were followed up for a median of 54.0 months, with 130 confirmed deaths. Older age (>60 years) (hazard ratio [HR]: 1.307, 95% confidence interval [CI]: 1.056–2.161, P = 0.006), advanced tumor, node, and metastasis stage (P < 0.05), poorly pathological differentiation (HR: 1.765, 95% CI: 1.080–2.884, P = 0.023), history of smoking (P < 0.001), never physical exercise (HR: 2.057, 95% CI: 1.170–3.617, P = 0.012), long sleep duration (≥8 h) (HR: 4.160, 95% CI: 1.501–11.533, P = 0.006), and short sleep duration (<6 h) (HR: 3.417, 95% CI: 1.312–8.900, P = 0.012) were independent indicators of a poor overall survival in GC patients after radical resection. Conclusion: Smoking cessation, proper sleep duration, and regular physical exercise habits can improve the long-term survival of GC patients after radical resection.