Table 5 Diary and accelerometer-based primary indicators of effectiveness at baseline (B) and 4 weeks after the intervention (F1) in the intervention (INT) and comparison (COM) group and the differences in change between the groups from B to F1 with 95% confidence intervals (95% CI)
INT | COM | Between-group difference in change (95% CI)a) | |||
|---|---|---|---|---|---|
B | F1 | B | F1 | ||
Accelerometer, n | 187 | 122 | 170 | 118 | INT = 117; COM = 107 |
Total PA, mean (SD) | |||||
• Minutes per day | 267.1 (53.3) | 239.3 (49.7) | 256.5 (59.8) | 239.2 (60.6) | −8.2 (− 19.3 to 2.8) |
• Light-intensity minutes per day | 180.9 (34.3) | 165.7 (30.7) | 176.8 (39.8) | 168.8 (38.4) | −6.3 (−14.0 to 1.3) |
• Moderate-to-vigorous intensity minutes per day | 86.7 (32.3) | 73.6 (28.0) | 79.7 (30.2) | 70.4 (31.4) | −1.1 (−6.9 to 4.8) |
• Steps per day | 10,238 (3098) | 9292 (2704) | 9919 (2902) | 9141 (3200) | 50 (− 813 to 713) |
• Breaks from sittingb) | 39.4 (8.4) | 37.6 (7.6) | 38.0 (9.1) | 37.0 (8.8) | −0.1 (−1.7 to 1.4) |
• Meeting PA recommendationsc), n (%) | 25 (13.4) | 17 (13.9) | 22 (12.9) | 17 (14.4) | −0.2 (−4.5 to 4.0) |
Activity diary, n | 209 | 89 | 199 | 65 | INT = 88; COM = 65 |
Walking or cycling to school, mean (SD) | |||||
• Minutes per day | 7.9 (6.2) | 7.7 (6.8) | 8.5 (6.2) | 8.1 (6.4) | 0.7 (−1.3 to 2.7) |
• Weekly number of days | 3.8 (1.9) | 3.3 (2.1) | 3.8 (1.8) | 3.5 (2.0) | −0.1 (−0.5 to 0.4) |
Walking or cycling from school, mean (SD) | |||||
• Minutes per day | 9.0 (6.5) | 8.3 (7.4) | 9.8 (7.2) | 9.5 (7.2) | 0.5 (−1.9 to 2.9) |
• Weekly number of days | 3.8 (1.7) | 3.3 (2.0) | 3.8 (1.7) | 3.5 (2.0) | −0.1 (−0.7 to 0.6) |
PA during school hours, mean (SD) | |||||
• Total minutes per day | 39.7 (23.7) | 36.0 (22.9) | 33.6 (21.7) | 28.6 (17.1) | 6.4 (−6.1 to 19.0) |
• Minutes per day during recesses | 5.5 (9.5) | 4.3 (10.5) | 9.0 (13.4) | 7.9 (11.0) | −0.5 (−3.3 to 2.4) |
SB during school hours, mean (SD) | |||||
• Total minutes per day | 249.2 (69.9) | 260.0 (78.4) | 251.9 (78.9) | 277.0 (72.7) | −12.4 (−44.4 to 19.6) |
Participation in organized sports, mean (SD) | |||||
• Weekly minutes | 240.7 (263.4) | 267.8 (274.8) | 221.9 (281.9) | 200.8 (278.9) | 5.1 (−58.0 to 68.2) |