Proportion making a quit attempt between the follow-up periods
Quit attempt | Proactive telephone counselling | Controls | Adjusted p Value† | ||||
N | n | % | N | n | % | ||
Baseline to 4 months | 664 | 323 | 48.6 | 704 | 302 | 42.9 | 0.01* |
4–7 months | 574 | 213 | 37.1 | 622 | 216 | 34.7 | 0.3 |
7–13 months | 562 | 232 | 41.3 | 595 | 223 | 37.5 | 0.1 |
Baseline to 13 months‡ | 566 | 384 | 67.8 | 610 | 390 | 63.9 | 0.09 |