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Table 3 Physical activity and sedentary time (school day: 09:00–15:00) at one year follow up in the intervention children compared to control

From: Effect of major school playground reconstruction on physical activity and sedentary behaviour: Camden active spaces

  Full sample Under 9 yr. olds 9–10 yr. olds
Sedentary (min/d)
 Control Ref Ref Ref
 Intervention −6.8 (−38.8, 25.2) −19.0 (−1.0, −37.0) 11.2 (−33.8, 56.4)
Light PA (min/d)
 Control Ref Ref Ref
 Intervention 6.9 (−19.4, 33.1) 17.1 (0.1, 34.2) −7.1 (−46.6, 32.5)
MVPA (min/d)
 Control Ref Ref Ref
 Intervention −0.8 (−7.1, 5.5) 1.6 (−2.4, 5.6) −5.0 (−10.5, 0.5)
Total cpm
 Control Ref Ref Ref
 Intervention −5.5 (−119.9, 108.9) 109.1 (−2.8, 221.0) −135.8 (−344.6, 73.1)
  1. Coefficients (95% CI) adjusted for age, sex, ethnicity, ratio activity or sedentary/wear time at baseline, wear time at follow up (as fixed effects), and school (as random effect)