Sustained abstinence | AS | AS+NRT | p value (χ2 test) | Odds ratio (95% CI) |
---|---|---|---|---|
AS=advice and support; NRT = nicotine replacement therapy. | ||||
For 1 week: 110/245 (45%) | 36/109 (33%) | 74/136 (54%) | <0.001 | 2.42 (1.44 to 4.08) |
For 1 month: 78/245 (32%) | 28/109 (26%) | 50/136 (37%) | 0.073 | 1.68 (0.974 to 2.92) |
For 3 months: 57/245 (23%) | 22/109 (20%) | 35/136 (26%) | 0.362 | 1.37 (0.75 to 2.51) |
For 6 months: 37/245 (15%) | 15/109 (14%) | 22/136 (16%) | 0.720 | 1.21 (0.59 to 2.46) |
For 1 year: 35/245 (14%) | 15/109 (14%) | 20/136 (15%) | 0.857 | 1.08 (0.52 to 2.23) |