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Mean ± se differences in daily time allocation to sedentary, light, and moderate plus vigorous physical activity in urban free-living adults with actigraphy-measured habitual sleep of less than 6 h/night compared with a similar group of subjects with average sleep of 6 or more h/night (n = 20 in each group). CI, Confidence interval. *, P < 0.03 (graph based on our own data; see Ref. 28 for details).
