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Changes in physical activity among adults with diabetes: a longitudinal cohort study of inactive patients with Type 2 diabetes who become physically active

To identify the predictors and clinical effects among inactive patients with diabetes who become physically active, in the setting of a large integrated health system. We studied adults with Type 2 diabetes with at least two clinic visits between December 2011 and November 2012 who reported being inactive at their first visit. The mean (±sd) interval between their first and last visit was 6.2 (±2.3) months. We analysed self-reported moderate-to-vigorous physical activity data collected using a structured intake form during routine clinical care. The study cohort (N = 6853) had a mean age of 60.2 years; 51.4% were women and 53.6% were non-white. Nearly two-thirds (62.5%, n = 4280) reported remaining physically inactive, while 16.0% reported achieving the recommended moderate-to-vigorous physical activity levels (? 150 min/week) by the last visit of the study period. Female gender (odds ratio 0.77, 95% CI 0.67, 0.88), obesity (BMI 30-34.9 kg/m(2) : odds ratio 0.76, 95% CI 0.60, 0.97; BMI ? 35 kg/m(2) : odds ratio 0.55, 95% CI 0.42, 0.70), chronic kidney disease (odds ratio 0.78, 95% CI 0.65, 0.94) and depression (odds ratio 0.77, 95% CI 0.62, 0.96) were each independently associated with not achieving the recommended moderate-to-vigorous physical activity level, while physician referral to lifestyle education was a positive predictor (odds ratio 1.40, 95% CI 1.09, 1.85). Controlling for baseline differences, patients achieving the recommended moderate-to-vigorous physical activity target lost 1.0 kg more weight compared with patients remaining inactive (P < 0.001). Patients with diabetes in a real-world clinical setting lost weight after becoming physically active; however, nearly two-thirds of patients remained inactive. Novel interventions to address physical inactivity in primary care should address barriers faced by older patients with medically complex disease.

Authors: Palakodeti S; Uratsu CS; Schmittdiel JA; Grant RW

Diabet Med. 2015 Aug;32(8):1051-7. Epub 2015-04-10.

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