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Effect of physical activity and obesity on type 2 diabetes in a middle-aged population
1School of Population Health, University of Queensland, Herston, QLD 4006, Australia. ansarirm@yahoo.com
Background:
The physical activity has been associated with a reduced risk of type 2 diabetes. The aim of this study was to examine the effect of physical activities such as occupational, household and daily lifestyle activities and obesity on the prevalence of type 2 diabetes in middle-aged population.
Methods:
All people (n = 2053), aged 45-64 years were selected for this study from the large sample of population-based cross-sectional data collected in the 1990-1994 by National Health Survey of Pakistan. The participants completed in-person interviews at baseline; the overall response rate was 92.6%. The Cox proportional hazards model was used to estimate the risk of developing the type 2 diabetes.
Results:
Stair climbing was found to be inversely associated with the risk of diabetes and cycling was also associated with a reduced risk of type 2 diabetes (RR = 0.82; 95% CI 0.68-1.00, P = .048). The relationship between physical activity and reduced risk of diabetes adjusted for age and body mass index was statistically significant only in women (P < .01).
Conclusions:
This study provides an incentive that physical activity in leisure-time exercise or daily activity reduces the risk of type 2 diabetes in a high-risk population.
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