Scores | T0 | T1 | T2 | ||||||
---|---|---|---|---|---|---|---|---|---|
Intervention (n = 83) | Control (n = 60) | p-value | Intervention (n = 59) | Control (n = 51) | p-value | Intervention (n = 42) | Control (n = 55) | p-value | |
Mean (SD) | Mean (SD) | Mean (SD) | |||||||
Knowledge | 9.4 (2.1) | 7.7 (1.7) | <0.001 | 9.5 (1.8) | 7.9 (2.2) | <0.001 | 9.3 (1.9) | 7.4 (2.1) | <0.001 |
Attitude | 18.7 (1.9) | 17.4 (2.4) | 0.001 | 19.7 (1.6) | 19.2 (1.5) | 0.104 | 20.0 (1.4) | 18.2 (1.6) | <0.001 |
Subjective norms | 8.5 (2.3) | 7.9 (2.0) | 0.140 | 9.4 (2.2o) | 8.6 (2.3) | 0.081 | 9.7 (2.0) | 9.8 (2.4) | 0.834 |
Perceived behavioural control | 0.0 (0.0) | 0.1 (0.3) | 0.017 | 0.9 (0.2) | 1.0 (0.0) | 0.103 | 0.9 (0.2) | 1.0 (0.1) | 0.412 |
Intention | 14.2 (2.1) | 14.7 (1.1) | 0.134 | 16.0 (1.6) | 16.1 (1.0) | 0.753 | 16.1 (1.5) | 16.1 (1.2) | 0.945 |
Helmet use behaviour | 17.4 (2.2) | 16.5 (3.0) | 0.062 | 18.6 (3.1) | 16.0 (2.9) | <0.001 | 19.9 (1.9) | 16.1 (2.0) | <0.001 |
Total score | 68.1 (5.7) | 64.3 (4.6) | <0.001 | 74.2 (4.6) | 68.8 (5.0) | <0.001 | 75.8 (4.1) | 68.4 (5.8) | <0.001 |