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Physical inactivity and self-reported depression among middle- and older-aged population in South Asia: World health survey.

Physical inactivity and self-reported depression among middle- and older-aged population in South Asia: World health survey.
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Bishwajit G, O'Leary DP, Ghosh S, Yaya S, Shangfeng T, Feng Z,


Bishwajit G, O'Leary DP, Ghosh S, Yaya S, Shangfeng T, Feng Z, (click to view)

Bishwajit G, O'Leary DP, Ghosh S, Yaya S, Shangfeng T, Feng Z,

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BMC geriatrics 2017 04 2817(1) 100 doi 10.1186/s12877-017-0489-1
Abstract
BACKGROUND
With the increase in the understanding of the influence of various lifestyle factors such as sedentary behaviour and level of physical activity (PA) on physical and mental health, there has been a growing research interest on how physical inactivity correlates with depressive outcomes across countries. The present study aimed to examine 1) the pattern of engaging in PA among middle- and older-aged population in four South Asian countries, and 2) whether PA is associated with higher prevalence of depression.

METHODS
This cross-sectional study is based on country-representative data obtained from WHO’s World Health Survey (WHS). Subjects were 7204 men and women aged above 50 years from Bangladesh, India, Nepal and Sri Lanka, all of which are classified as Low-and-middle-income countries (LMICs) in World Bank reports. Outcome variables were self-ported depression (SRD) and ever being diagnosed with depression. Association between frequency of moderate (MPA) and vigorous physical activity (VPA) and depression was analysed by multivariable regression methods.

RESULT
Prevalence of self-reported depression was respectively 47.7%, 40.3%, 40.4% and 11.4% in Bangladesh, India, Nepal and Sri Lanka. Prevalence of being ever diagnosed with depression was highest in Nepal (38.7%), followed by India (17.7%), Bangladesh (2.5%) and Sri Lanka (2%). Multivariable analysis shown statistically significant association between PA and diagnosed depression in Bangladesh and India, but not with SRD. In Bangladesh, compared to those who reported engaging in MPA on daily basis, the odds of reporting diagnosed depression were more than five times higher [AOR = 5.512; 95% CI = 1.159-26.21] for those who never took MPA. In India, those never took VPA had 44% higher [AOR = 1.442; 95% CI = 1.046-1.987] odds of being diagnosed with depression compared those who never engaged in VPA.

CONCLUSION
Lower frequency of vigorous physical activity were significantly associated with higher rates of depression diagnosed. Based on the findings, it is recommendable that health programs targeting mental health among middle- and older-aged population take steps to promote the level of PA within a multi-dimensional depression prevention framework. Longitudinal studies are needed to understand the role of vigorous and moderate physical activity on the onset and intervention of depression among elderly population in the region.

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