Intention-to-treat analysis | Intervention | Control | P | NNT | ||
---|---|---|---|---|---|---|
n | % | n | % | |||
N = 319 | 160 | 50 | 159 | 50 | ||
Smoking cessation at 6th month | 50 | 31.25 | 22 | 13.84 | < 0.001 | 5.7 |
Smoking cessation at 12th month | 62 | 38.75 | 23 | 14.47 | < 0.001 | 4.1 |
Cessation for 6 months, PPM confirmed | 41 | 25.62 | 18 | 11.32 | < 0.001 | 7 |