|  | Mean change (SE) | Intervention effect (95% CI)a | p | |
---|---|---|---|---|---|
Intervention | Control | ||||
Perceived behavioural control | 3 monthsb | 0.80 (0.09) | 0.18 (0.06) | 0.67 (0.40, 0.95) | <0.001 |
12 monthsc | 0.82 (0.14) | 0.18 (0.10) | 0.63 (0.23, 1.03) | 0.002 | |
Barrier self-efficacy | 3 monthsb | 0.94 (0.07) | 0.11 (0.09) | 0.87 (0.58, 1.16) | <0.001 |
12 monthsd | 0.78 (0.11) | 0.21 (0.16) | 0.54 (0.07, 1.00) | 0.023 | |
Perceived organisational norms | 3 monthsb | 0.31 (0.05) | 0.07 (0.03) | 0.25 (0.10, 0.41) | 0.001 |
 | 12 monthsd | 0.22 (0.08) | 0.04 (0.07) | 0.18 (−0.07, 0.43) | 0.163 |
Knowledge | 3 monthsb | 0.20 (0.05) | 0.02 (0.07) | 0.17 (−0.01, 0.36) | 0.070 |
12 monthsc | 0.22 (0.05) | 0.19 (0.08) | 0.00 (−0.22, 0.23) | 0.982 |