The study aimed to estimate independent and combined associations of sedentary behaviour and physical activity with anxiety and depression among chronic disease patients in Myanmar and Vietnam. The cross-sectional sample included 3201 chronic disease patients (median age 51 years, interquartile range 25) systematically recruited from primary care facilities in 2015. Sedentary time and physical activity were assessed with the General Physical Activity Questionnaire (GPAQ). Overall, the prevalence of sedentary time per day was 51.3% < 4 h, 31.2% between 4 and 8 h, and 17.5% 8 or more hours a day), and 30.7% engaged in low physical activity, 50.0% moderate, and 23.6% high physical activity. The prevalence of anxiety and depression was 12.7% and 19.9%, respectively. In the final logistic regression model, adjusted for relevant confounders, higher sedentary time (≥8 h) did not increase the odds for anxiety or depression, but moderate to high physical activity decreased the odds for anxiety and depression. Combined regression analysis found that participants with both less than eight hours of sedentary time and moderate or high physical activity had significantly lower odds of having anxiety and depression. Findings suggest an independent and combined association between moderate or high physical activity and low sedentary time with anxiety and/or depression among chronic disease patients in Myanmar and Vietnam.
Keywords: Myanmar; Vietnam; adults; anxiety; chronic diseases; depression; physical activity; sedentary behaviour.