Time effects analysis for behavioural capacity
| Group/variables | General tobacco control attitudes | Public health tobacco control attitudes | Advocacy interest and motivation | Advocacy among family member | Advocacy among relatives or friends Group | Smoking rate | Anti-secondhand smoking behaviours | Anti-smoking susceptibility | |||||||||||
| n | Mean (SD)* | n | Mean (SD)* | n | Mean (SD)* | n | X | % | n | X | % | n | X | % | n | Mean (SD)* | n | Mean (SD)* | |
| Intervention group | |||||||||||||||||||
| Baseline | 426 | 6.27 (3.00) A | 426 | 3.04 (2.16) A | 426 | 0.09 (2.39) A | 273 | 124 | 5.4A | 394 | 105 | 6.6A | 426 | 31 | 7.28A | 426 | 6.24 (1.63) A | 426 | 12.63 (3.28) A |
| Time 1 | 426 | 7.54 (2.32) B | 426 | 4.10 (1.42) B | 426 | 1.27 (1.80) B | 298 | 176 | 9.1B | 412 | 172 | 1.8B | 426 | 24 | 5.63A | 426 | 7.08 (1.34) B | 426 | 13.90 (2.60) B |
| Time 2 | 426 | 7.93 (2.32) C | 426 | 4.24 (4.42) B | 426 | 12.04 (2.34) C | 229 | 226 | 8.7C | 367 | 245 | 6.8C | 426 | 26 | 6.10A | 426 | 7.60 (1.36) C | 426 | 14.35 (2.73) C |
| F(χ2) | 154.36 (p<0.01) | 86.26 (p<0.01) | 112.00 (p<0.01) | 64.24 (p<0.01) | 122.30 (p<0.01) | 3.29 (p>0.05) | 153.77 (p<0.01) | 63.41 (p<0.01) | |||||||||||
| Control group | |||||||||||||||||||
| Baseline | 338 | 16.99 (2.68) | 338 | 13.78 (1.83) | 338 | 7.94 (2.06) | 219 | 95 | 43.4 | 321 | 113 | 35.2 | 338 | 30 | 8.9 | 338 | 6.96 (1.44) | 338 | 13.75 (2.92) |
| Final | 338 | 17.44 (2.59) | 338 | 13.76 (1.92) | 338 | 11.23 (2.11) | 221 | 98 | 44.3 | 315 | 108 | 34.3 | 338 | 20 | 9.5 | 338 | 7.11 (1.44) | 338 | 13.54 (3.22) |
| t(χ2) | 3.63 (p<0.01) | 0.23 (NS) | 0.76 (NS) | 0.20 (NS) | 0.14 (NS) | 0.63 (NS) | 2.50 (p<0.05) | 1.69 (p>0.05) | |||||||||||
↵* Same letters among groups reflect no group difference and different letters a significant difference at p≤0.05 in intervention group.