Estimated effect of the intervention on physical activity and diet
| Baseline | Postintervention assessment | |||||
| n | Mean (SD) | N | Mean (SD) | Mean diff (95% CI)* | P value | |
| Physical activity (METs) (secondary outcome) | ||||||
| Control (ITT) | 132 | 1643 (3065) | 119 | 683 (563) | ||
| Intervention (ITT) | 158 | 1873 (3567) | 139 | 750 (1190) | 58 (−109 to 225) | 0.50 |
| Attendance | ||||||
| ≥1 session | 73 | 2136 (4202) | 68 | 812 (1560) | 121 (−127 to 369) | 0.34 |
| ≥2 sessions | 56 | 2398 (4634) | 53 | 894 (1749) | 179 (−163 to 521) | 0.30 |
| ≥3 sessions | 36 | 1343 (2368) | 34 | 685 (547) | 20 (−201 to 241) | 0.86 |
| All 4 sessions | 22 | 1608 (2872) | 21 | 819 (647) | 128 (−185 to 442) | 0.42 |
| Total grain (g/day) | ||||||
| Control (ITT) | 131 | 598 (199) | 119 | 591 (148) | ||
| Intervention (ITT) | 157 | 537 (199) | 137 | 530 (117) | −39 (−65 to −14) | <0.01 |
| Attendance | ||||||
| ≥1 session | 73 | 546 (170) | 66 | 540 (128) | −33 (−66 to 0.04) | 0.05 |
| ≥2 sessions | 56 | 547 (166) | 51 | 523 (119) | −52 (−84 to −20) | <0.01 |
| ≥3 sessions | 36 | 566 (164) | 34 | 534 (115) | −48 (−86 to −9) | 0.02 |
| All 4 sessions | 22 | 541 (153) | 21 | 523 (72) | −58 (−106 to −9) | 0.02 |
| Fruits and vegetables (g/day) | ||||||
| Control (ITT) | 130 | 216 (122) | 119 | 275 (99) | ||
| Intervention (ITT) | 156 | 195 (104) | 136 | 274 (116) | 2 (−28 to 31) | 0.90 |
| Attendance | ||||||
| ≥1 sessions | 72 | 215 (98) | 66 | 277 (124) | 2 (−32 to 35) | 0.93 |
| ≥2 sessions | 56 | 222 (93) | 51 | 277 (125) | 2 (−43 to 47) | 0.94 |
| ≥3 sessions | 36 | 251 (83) | 34 | 297 (127) | 19 (−27 to 65) | 0.41 |
| All 4 sessions | 22 | 257 (85) | 21 | 309 (124) | 31 (−26 to 87) | 0.29 |
*Mean difference between groups estimated by mixed linear model.
ITT, intention-to-treat analysis; METs, metabolic equivalent.