Number of children owning and always wearing a helmet by school and treatment group post-intervention (percentage)
| Owns a helmet | Always wears a helmet | ||||||
|---|---|---|---|---|---|---|---|
| School number | Helmet + multifaceted intervention | School number | Helmet + educational pack | School number | Helmet + multifaceted intervention | School number | Helmet + educational pack |
| *Weighted by number of children in each school. | |||||||
| 1 | 38/47 (81) | 15 | 5/7 (71) | 1 | 10/38 (26) | 15 | 2/5 (40) |
| 2 | 18/18 (100) | 16 | 18/31 (58) | 2 | 8/17 (47) | 16 | 8/18 (44) |
| 3 | 15/29 (52) | 17 | 30/34 (88) | 3 | 7/15 (47) | 17 | 12/30 (40) |
| 4 | 12/15 (80) | 18 | 13/17 (76) | 4 | 3/11 (28) | 18 | 2/13 (15) |
| 5 | 12/13 (92) | 19 | 15/18 (83) | 5 | 2/11 (18) | 19 | 4/15 (27) |
| 6 | 20/22 (91) | 20 | 34/49 (69) | 6 | 6/20 (30) | 20 | 4/34 (12) |
| 7 | 20/20 (100) | 21 | 6/6 (100) | 7 | 4/19 (21) | 21 | 2/6 (33) |
| 8 | 17/24 (71) | 22 | 16/17 (94) | 8 | 5/17 (29) | 22 | 4/16 (25) |
| 9 | 40/50 (80) | 23 | 14/23 (61) | 9 | 14/40 (35) | 23 | 6/14 (43) |
| 10 | 30/40 (75) | 24 | 92/100 (92) | 10 | 8/30 (27) | 24 | 49/92 (53) |
| 11 | 55/55 (100) | 25 | 15/18 (83) | 11 | 25/55 (45) | 25 | 3/15 (20) |
| 12 | 22/22 (100) | 26 | 49/64 (77) | 12 | 10/22 (45) | 26 | 11/49 (22) |
| 13 | 5/9 (56) | 27 | 19/20 (95) | 13 | 0/5 (0) | 27 | 4/19 (21) |
| 14 | 10/10 (100) | 28 | 26/31 (84) | 14 | 2/10 (20) | 28 | 10/26 (38) |
| Mean percentage across schools (SE)* | |||||||
| 84.0 (4.2) | 80.9 (3.8) | 33.1 (2.9) | 33.8 (5.7) | ||||
| Difference between means (95% CI) | |||||||
| 3.0 (−8.5 to 14.6), p = 0.59 | −0.6 (−13.8 to 12.5), p = 0.92 | ||||||