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Table 3 Effect of introducing the Daily Mile on outcomes assessed immediately after the end of the intervention period

From: The Daily Mile makes primary school children more active, less sedentary and improves their fitness and body composition: a quasi-experimental pilot study

Outcome

Difference in change between schools after correction for age, gender and age*gender

Difference in change between schools after correction for age, gender, age*gender and SIMD

Mean (95% CI)

SMD

p value

Mean (95% CI)

SMD

p value

Mean MVPA per day (min)

9.1 (5.1 to 13.2)

0.407

0.027

9.5 (5.4 to 13.5)

0.422

0.021

Mean sedentary time per day (min)

-18.2 (−10.7 to −25.7)

0.437

0.017

-18.1 (−10.6 to − 25.6)

0.435

0.018

Total shuttle distance (m)

39.1 (21.9 to 56.3)

0.236

0.037

37.2 (20.1 to 54.3)

0.225

0.046

Sum of skinfolds (mm)

-1.4 (−2.0 to −0.8)

0.246

0.034

-1.4 (−2.0 to − 0.8)

0.258

0.026

  1. SMD is calculated as the change in the intervention school relative to the control school as a proportion of the standard deviation of the change. Analyses were conducted using GLM-ANOVA corrected for age, gender, age*gender ± SIMD with repeated measures for the outcome. Sedentary time and MVPA were also corrected for accelerometer wear time
  2. 95% CI 95% confidence interval, MVPA moderate to vigorous intensity physical activity, SIMD Scottish Index of Multiple Deprivation, SMD standardised mean difference