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Table 5 Objectively measured activity variables at follow-up between participants randomised to usual practice (control) or to the Girls Active programme (intervention)a

From: Effectiveness of the ‘Girls Active’ school-based physical activity programme: A cluster randomised controlled trial

  Number of schools | pupils Adjusted difference at follow-upb
Control Intervention Coefficient (95% C.I.) P value ICC
MVPA (mins/day)
School days
 Baseline 10 | 854 10 | 850    
 7 months 8 | 602 10 | 746 1.84 (-0.52 to 4.20) 0.126 0.02
 14 months 9 | 578 10 | 693 1.79 (-1.27 to 4.85) 0.251 0.02
Weekend
 Baseline 10 | 828 10 | 827    
 7 months 8 | 561 10 | 702 2.78 (-2.37 to 7.92) 0.290 0.04
 14 months 9 | 503 10 | 637 0.99 (-3.54 to 5.51) 0.669 0.02
During school hours
 Baseline 10 | 855 10 | 850    
 7 months 8 | 602 10 | 746 0.73 (-0.84 to 2.30) 0.360 0.05
 14 months 9 | 578 10 | 693 0.84 (-0.50 to 2.18) 0.218 0.02
After-school hours
 Baseline 10 | 855 10 | 850    
 7 months 8 | 602 10 | 746 0.51 (-0.79 to 1.78) 0.443 0.02
 14 months 9 | 578 10 | 693 0.39 (-1.61 to 2.39) 0.701 0.03
Average acceleration (ENMO; mg/day)
All days
 Baseline 10 | 858 10 | 850    
 7 months 8 | 602 10 | 747 1.39 (0.09 to 2.18) 0.033 0.03
 14 months 9 | 578 10 | 694 0.66 (-0.62 to 1.95) 0.314 0.02
School days
 Baseline 10 | 854 10 | 850    
 7 months 8 | 602 10 | 747 0.89 (-0.18 to 1.95) 0.102 0.03
 14 months 9 | 578 10 | 693 0.46 (-0.91 to 2.02) 0.460 0.03
Weekend
 Baseline 10 | 828 10 | 827    
 7 months 8 | 559 10 | 702 1.39 (-1.13 to 3.92) 0.280 0.05
 14 months 9 | 503 10 | 637 0.51 (-1.49 to 2.51) 0.619 0.02
Sedentary time (mins/day)
All days
 Baseline 10 | 848 10 | 846    
 7 months 8 | 588 10 | 732 -5.76 (-12.90 to 1.38) 0.114 0.01
 14 months 9 | 565 10 | 680 -2.64 (-13.03 to 7.75) 0.618 0.01
School days
 Baseline 10 |840 10 | 844    
 7 months 8 | 586 10 | 726 -4.17 (-10.74 to 2.40) 0.213 0.01
 14 months 9 | 559 10 | 676 -0.08 (-12.72 to 12.55) 0.990 0.02
Weekends
 Baseline 10 | 815 10 | 806    
 7 months 8 | 553 10 | 680 -9.73 (-27.41 to 7.95) 0.281 0.02
 14 months 9 | 485 10 | 619 -10.27 (-20.63 to 0.10) 0.052 < 0.001
During school hours
 Baseline 10 | 855 10 | 850    
 7 months 8 | 602 10 | 746 3.83 (-4.13 to 11.78) 0.356 0.08
 14 months 9 | 578 10 | 693 2.49 (-4.84 to 9.81) 0.506 0.06
After-school hours
 Baseline 10 | 855 10 | 850    
 7 months 8 | 602 10 | 746 -4.72 (-8.89 to -0.56) 0.026 0.02
 14 months 9 | 578 10 | 693 -1.38 (-6.68 to 3.92) 0.610 0.02
Time spent in light PA (mins/day)
All days
 Baseline 10 | 858 10 | 850    
 7 months 8 | 602 10 | 747 5.71 (0.96 to 10.46) 0.018 0.01
 14 months 9 | 578 10 | 694 1.50 (-5.93 to 8.94) 0.692 0.01
School days
 Baseline 10 | 854 10 | 850    
 7 months 8 | 602 10 | 746 4.50 (0.25 to 8.75) 0.038 < 0.01
 14 months 9 | 578 10 | 694 0.30 (-8.49 to 9.09) 0.947 0.03
Weekends
 Baseline 10 | 828 10 | 827    
 7 months 8 | 561 10 | 702 8.85 (-5.52 to 23.22) 0.227 0.05
 14 months 9 | 503 10 | 637 3.21 (-6.90 to 13.32) 0.534 0.001
During school hours
 Baseline 10 | 855 10 | 850    
 7 months 8 | 602 10 | 746 5.38 (-10.01 to 20.77) 0.493 0.65
 14 months 9 | 578 10 | 693 4.08 (-7.55 to 15.72) 0.492 0.54
After-school hours
 Baseline 10 | 855 10 | 850    
 7 months 8 | 602 10 | 746 1.70 (-1.30 to 4.69) 0.268 0.01
 14 months 9 | 578 10 | 693 0.07 (-4.70 to 4.85) 0.976 0.03
Proportion achieving 60 mins/day of MVPA
All days
 Baseline 10 | 857 10 | 849    
 7 months 8 | 594 10 | 742 0.78 (0.23 to 2.65) 0.688 < 0.001
 14 months 9 | 573 10 | 686 0.65 (0.23 to 1.85) 0.420 0.01
  1. CI confidence interval; ICC intra-class correlation; PA physical activity; MVPA moderate- to vigorous-intensity physical activity
  2. aBased on a complete case analysis
  3. bAdjusted difference at follow-up between randomised groups with 95% confidence interval, P value, and ICC for schools; adjusted for cluster effect, baseline value, participant year group, school %free school meal eligibility and stratification categories (school size and percentage of non-White pupils)