Table 2.
Reported attempts to quit smoking after the tax increase among past 30-day smokers at Round 11 (n=781)
| Variables | Univariate | Bivariate | Multivariate | |
|---|---|---|---|---|
|
| ||||
| N (%) | % attempted to quit | Unadjusted OR and 95% CI† | Adjusted OR and 95% CI† | |
| Age (years) | 18.4 ± 1.6‡ | -- | 0.87 (0.77, 0.98) * | 0.77 (0.67, 0.89)* |
| Gender | ||||
| Male | 396 (50.7%) | 16.5 | 0.97 (0.67, 1.41) | § |
| Female | 385 (49.3%) | 16.9 | Ref | |
| Ethnicity | ||||
| African American or Black | 12 (1.5%) | 16.7 | 1.04 (0.23, 4.81) | § |
| Other | 73 (9.4%) | 21.9 | 1.50 (0.81, 2.63) | |
| White | 696 (89.1%) | 16.1 | Ref | |
| Parent Education Level | ||||
| Some graduate school or higher | 117 (17.0%) | 7.7 | 0.35 (0.16, 0.76) * | 0.43 (0.18, 0.98)* |
| College graduate | 228 (33.1%) | 14.5 | 0.71 (0.42, 1.20) | 0.88 (0.51, 1.52) |
| Some college or associate degree | 168 (24.4%) | 22.2 | 1.19 (0.71, 2.01) | 1.33 (0.77, 2.30) |
| High school graduate or under | 176 (25.5%) | 19.3 | Ref | Ref |
| Number of hours in paid job per week | ||||
| Over 40 hours | 73 (9.4%) | 24.7 | 1.86 (0.96, 3.58) | 2.16 (1.05, 4.44)* |
| 31 to 40 hours | 131 (16.9%) | 21.4 | 1.54 (0.87, 2.72) | 1.69 (0.90, 3.19) |
| 21 to 30 hours | 109 (14.1%) | 15.6 | 1.05 (0.55, 2.00) | 1.17 (0.59, 2.32) |
| 20 hours or less | 261 (33.6%) | 13.8 | 0.91 (0.54, 1.53) | 1.01 (0.58, 1.76) |
| No paid job | 202 (26.0%) | 15.0 | Ref | Ref |
| Smoking stage at Round 9 | ||||
| Established | 313 (40.2%) | 19.2 | 7.62 (1.02, 56.83) * | 4.22 (0.54, 36.35) |
| Regular | 153 (19.6%) | 16.5 | 6.30 (0.82, 48.22) | 4.72 (0.58, 38.43) |
| Experimental | 92 (11.8%) | 19.6 | 7.78 (1.00, 60.78) | 8.31 (1.00, 69.05) |
| < Monthly | 126 (16.2%) | 10.3 | 3.68 (0.46, 29.20) | 3.78 (0.45, 31.47) |
| Trier | 62 (8.0%) | 17.7 | 6.90 (0.85, 56.00) | 6.92 (0.81, 58.80) |
| Never smoker | 33 (4.2%) | 3.0 | Ref | Ref |
| Living with smokers | ||||
| Yes | 394 (50.1%) | 17.1 | 1.05 (0.72, 1.53) | § |
| No | 385 (49.4%) | 16.4 | Ref | |
| Number of close friends who smoke (0–4) | 2.2 ± 1.4‡ | -- | 1.21 (1.06, 1.38) * | 1.11 (0.93, 1.32) |
| General awareness of cigarette price changes | ||||
| Aware | 432 (55.3%) | 21.6 | 2.31 (1.53, 3.49) * | 2.35 (1.43, 3.86)* |
| Unaware | 349 (44.7%) | 10.6 | Ref | Ref |
*
p<0.05.
†
OR=odds ratios, CI=confidence intervals.
‡
Means and standard deviations are provided for continuous variables.
§
Variables dropped in chunkwise analysis (F-test p>0.1).