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Table 3 Behavioural effects from T1 to T2 by change/no change of school and sex

From: Changing from primary to secondary school highlights opportunities for school environment interventions aiming to increase physical activity and reduce sedentary behaviour: a longitudinal cohort study

  Change of school Change to No change of school Female to Male
Dependent variable Yes No Difference   95% CI Difference   95% CI
Average daily (mins) MVPA (accelerometer)1 −3 −4 0.8   −3.7, 5.3 −1.8   −6.5, 2.9
Average daily (mins) light PA (accelerometer)1 −20 −27 2.1   −8.3, 12.4 −9.5   −20.2, 1.1
Average daily (mins) after school being very active (self-report) 12 9 2.0   −15.4, 19.4 −15.3   −32.3, 1.8
Average daily (mins) weekend being very active (self-report) −10 14 −23.2   −50.8, 4.4 24.3   −2.9, 51.4
Frequency being very active in PE class (1: No PE, to 5: Always) 0.6 0.7 0.1   −0.1, 0.4 0.0   −0.3, 0.2
Do most of the time at recess (1: Sit down, to 5: Run/play hard) 1.5 1.0 −1.0 * −1.4, −0.6 0.2   −0.2, 0.6
Do most of the time at lunch (1: Sit down, to 5: Run/play hard) 1.5 1.2 −0.9 * −1.2, −0.5 0.2   −0.2, 0.6
School encourages organised sport participation (0: Not at all, to 3: A lot) 0.8 0.8 0.4 * 0.1, 0.6 0.3 * 0.0, 0.5
School encourages physical activity at lunchtime (0: Not at all, to 3: A lot) 1.0 0.9 −0.1   −0.4, 0.2 −0.3 * −0.6, −0.0
Teachers as physically active role models (1: Very poor, to 5: Very good) 0.8 0.8 0.4 * 0.2, 0.7 −0.1   −0.4, 0.1
Average daily (mins) sedentary (accelerometer)1 19 11 0.7   −12.3, 13.7 8.8   −4.5, 22.1
Average daily (mins) weekday leisure screen time (self-report) 32 −9 41.9 * 9.3, 74.4 24.8   −7.5, 57.1
Average daily (mins) weekend leisure screen time (self-report) 33 −13 45.9 * 3.5, 88.3 48.5 * 6.8, 90.2
Average daily (mins) weekday homework screen time (self-report) 26 23 3.5   −14.0, 21.0 0.3   −16.9, 17.5
Average daily (mins) weekend homework screen time (self-report) 14 9 4.7   −7.7, 17.2 −3.1   −15.4, 9.2
    IRR   95% CI IRR   95% CI
Walk to/from school (0–10 times/week) 0.1 0.0 1.1   0.9, 1.2 1.2   1.0, 1.4
Cycle/scoot to/from school (0–10 times/week) −0.7 −0.7 0.5 * 0.4, 0.8 0.6 * 0.4, 0.9
    OR   95% CI OR   95% CI
Usually watch TV/videos 0.3 0.3 2.3   0.9, 5.9 1.0   0.4, 2.5
Usually play non-active computer games 0.4 0.3 1.2   0.7, 2.1 0.5 * 0.3, 0.9
Usually use computer for leisure 0.5 0.5 1.6   0.8, 2.8 1.2   0.6, 2.2
Usually use computer for homework 0.7 0.6 0.9   0.4, 1.9 0.6   0.3, 1.4
  1. 95% CI: 95% confidence interval; IRR: incidence rate ratio; MV: moderate to vigorous; OR: odds ratio; PA: physical activity; PE: physical education.
  2. 1. Adjusted for accelerometer wear time.
  3. *p test value statistically significant at the P < 0.05 level.