Table 5.
Combined Results From Treatment Groups for Secondary Outcomes by Time Point
| Mean | 95% CI | p Value | |
|---|---|---|---|
| Cigarette dependency (n = 345) | |||
| Baseline | 4.24 | (3.99 to 4.50) | reference |
| 1 mo | 1.54 | (1.27 to 1.81) | <.0001 |
| 3 mo | 2.06 | (1.78 to 2.34) | <.0001 |
| 6 mo | 1.89 | (1.63 to 2.16) | <.0001 |
| 12 mo | 2.07 | (1.77 to 2.37) | <.0001 |
| Average cigarettes per day (n = 345) | |||
| Baseline | 12.90 | (12.07 to 13.73) | reference |
| 1 mo | 2.66 | (2.20 to 3.12) | <.0001 |
| 3 mo | 4.56 | (3.91 to 5.20) | <.0001 |
| 6 mo | 5.59 | (4.82 to 6.36) | <.0001 |
| 12 mo | 6.54 | (5.57 to 7.52) | <.0001 |
| Smoking urges (n = 345) | |||
| Baseline | 36.26 | (34.85 to 37.67) | reference |
| 1 mo | 18.55 | (17.11 to 19.99) | <.0001 |
| 3 mo | 20.55 | (19.01 to 22.09) | <.0001 |
| 6 mo | 22.25 | (20.48 to 24.03) | <.0001 |
| 12 mo | 22.27 | (20.42 to 24.12) | <.0001 |
| Nicotine withdrawal (n = 345) | |||
| Baseline | 12.63 | (11.84 to 13.42) | reference |
| 1 mo | 6.85 | (6.03 to 7.67) | <.0001 |
| 3 mo | 7.30 | (6.44 to 8.17) | <.0001 |
| 6 mo | 8.64 | (7.72 to 9.55) | <.0001 |
| 12 mo | 9.17 | (8.19 to 10.15) | <.0001 |
| Readiness to quit (n = 345) | |||
| Baseline | 6.92 | (6.80 to 7.04) | reference |
| 1 mo | 8.37 | (8.18 to 8.55) | <.0001 |
| 3 mo | 8.06 | (7.87 to 8.25) | <.0001 |
| 6 mo | 7.87 | (7.68 to 8.07) | <.0001 |
| 12 mo | 7.69 | (7.47 to 7.92) | <.0001 |
| Abstinence self-efficacy (n = 345) | |||
| Baseline | 18.58 | (17.56 to 19.61) | reference |
| 1 mo | 29.16 | (27.96 to 30.36) | <.0001 |
| 3 mo | 23.88 | (22.60 to 25.16) | <.0001 |
| Perceived risks of quittinga (n = 140) | |||
| Baseline | 3.97 | (3.81 to 4.13) | reference |
| 1 mo | 3.21 | (2.97 to 3.44) | <.0001 |
| 3 mo | 3.21 | (2.99 to 3.43) | <.0001 |
| Perceived Benefits of Quittinga (n = 140) | |||
| Baseline | 6.16 | (6.01 to 6.31) | reference |
| 1 mo | 6.09 | (5.91 to 6.28) | .070 |
| 3 mo | 6.07 | (5.87 to 6.27) | .071 |
| Weight gain concernsa (n = 140) | |||
| Baseline | 11.84 | (11.12 to 12.56) | reference |
| 1 mo | 10.03 | (9.11 to 10.95) | <.0001 |
| 3 mo | 10.17 | (9.27 to 11.08) | <.0001 |
CI = confidence interval.
aQuestionnaire only administered to current smokers. Model only includes participants who were smoking at the 3 mo time point. Results are unadjusted.