Table 3.
Treatment outcomes at 7 months among those sampled for follow-up surveys in four states and who enrolled around the time of the federal tax increase and in the previous year.
| Registered March–May 2008 |
Registered March–May 2009 |
Unadjusted P values |
Adjusted1 odds ratios (95% confidence interval)2 |
||
|---|---|---|---|---|---|
| Full sample3: N = 645/1651 (39.1%) |
N = 287/802 35.8% |
N = 338/849 39.8% |
N = 564/1506 | ||
|
| |||||
| % abstinent (7-day point prevalence) | Responders ITT4 |
30.7 11.0 |
28.7 11.4 |
0.59 0.77 |
0.95 (0.63, 1.45) 1.09 (0.77, 1.56) |
| % abstinent (30-day point prevalence) | Responders ITT4 |
26.8 9.6 |
24.9 9.9 |
0.57 0.84 |
0.96 (0.63, 1.46) 1.09 (0.76, 1.57) |
|
| |||||
| In multicall program5: 430/1150 | 189/521 | 241/629 | N = 417/1126 | ||
|
| |||||
| % abstinent (7-day point prevalence) | Responders ITT4 |
34.9 12.7 |
32.8 12.6 |
0.64 0.96 |
0.93 (0.58, 1.49)5
1.16 (0.78, 1.72)5 |
| % abstinent (30-day point prevalence) | Responders ITT4 |
31.8 11.5 |
28.6 11.0 |
0.48 0.77 |
0.91 (0.56, 1.48)5
1.14 (0.76, 1.71)5 |
1Controlling for age, gender, race, education, chronic condition, amount smoked, how heard about quitline, and state.
2Before tax period is the reference group.
3Number of respondents/number sampled. Note that the response rate was 4% higher after tax.
4ITT = Intent to Treat analyses (missing outcomes = smoking).
5Also controlling for call program (multiple versus single), number of counseling calls completed and use of NRT.