Table 4.
Multiple Logistic Regression Analysis on Intention-to-Quit in the Next 6 Months for the Full-Sample and Each Subsample Stratified by Race/Ethnicitya Among Current Smokers Aged ≥18 Who Participated in the Tobacco Use Supplement to the Current Population Survey, 2006/2007 and 2010/2011
| Subsamples | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Full-sample (N = 49 437) | NH white (N = 39 040) | NH AA (N = 4283) | NH Asian (N = 871) | Hispanic (N = 3266) | ||||||
| AOR (95% CI) | p | AOR (95% CI) | p | AOR (95% CI) | p | AOR (95% CI) | p | AOR (95% CI) | p | |
| Gender | ||||||||||
| Female | REF | REF | REF | REF | REF | |||||
| Male | 0.95 (0.91–1.00) | .0486 | 0.95 (0.90–1.00) | .0650 | 1.01 (0.87–1.17) | .9290 | 1.11 (0.73–1.68) | .6380 | 0.86 (0.71–1.04) | .1120 |
| Age | ||||||||||
| 18 to 34 | REF | REF | REF | REF | REF | |||||
| 35 to 49 | 1.12 (1.05–1.19) | .0006* | 1.14 (1.05–1.23) | .0011* | 1.16 (0.92–1.45) | .2030 | 1.04 (0.64–1.71) | .8610 | 1.04 (0.84–1.28) | .7280 |
| 50 to 64 | 1.12 (1.04–1.20) | .0030* | 1.12 (1.03–1.22) | .0080 | 1.21 (0.97–1.52) | .0958 | 0.68 (0.40–1.17) | .1630 | 1.00 (0.76–1.31) | .9810 |
| ≥65 | 0.86 (0.78–0.96) | .0050 | 0.86 (0.77–0.95) | .0055 | 0.88 (0.62–1.26) | .4890 | 0.52 (0.22–1.23) | .1360 | 1.25 (0.80–1.97) | .3270 |
| Race/ethnicity | ||||||||||
| NH white | REF | |||||||||
| NH AA | 1.18 (1.01–1.37) | .0369 | ||||||||
| NH Asian | 0.83 (0.68–1.03) | .0907 | ||||||||
| Hispanic | 0.93 (0.84–1.02) | .1200 | ||||||||
| NH Other | 1.17 (1.01–1.35) | .0340 | ||||||||
| Education | ||||||||||
| ≤High school graduate | 0.80 (0.74–0.87) | <.0001* | 0.78 (0.71–0.85) | <.0001* | 0.82 (0.59–1.15) | .2530 | 0.96 (0.61–1.50) | .8410 | 1.01 (0.68–1.51) | .9530 |
| Some college | 0.96 (0.88–1.04) | .2990 | 0.95 (0.87–1.04) | .2790 | 0.83 (0.59–1.18) | .2950 | 1.45 (0.85–2.48) | .1680 | 1.15 (0.76–1.75) | .5160 |
| At least college degree | REF | REF | REF | REF | REF | |||||
| Family income | ||||||||||
| <$25 000 | REF | REF | REF | REF | REF | |||||
| $25 000–$49 999 | 1.04 (0.98–1.10) | .2210 | 1.04 (0.97–1.12) | .3060 | 1.16 (0.96–1.40) | .1180 | 0.80 (0.47–1.34) | .3930 | 0.99 (0.81–1.20) | .9210 |
| $50 000–$74 999 | 1.15 (1.07–1.24) | .0002* | 1.16 (1.07–1.25) | .0005* | 1.08 (0.79–1.46) | .6330 | 1.37 (0.78–2.41) | .2710 | 0.98 (0.72–1.34) | .9140 |
| ≥$75 000 | 1.13 (1.04–1.23) | .0031* | 1.12 (1.02–1.21) | .0120 | 1.39 (0.96–2.02) | .0842 | 1.13 (0.66–1.94) | .6450 | 1.08 (0.77–1.52) | .6510 |
| Marital status | ||||||||||
| Married | REF | REF | REF | REF | REF | |||||
| Widowed/divorced | 0.94 (0.89–0.99) | .0300 | 0.91 (0.86–0.97) | .0042 | 0.99 (0.78–1.27) | .9660 | 1.00 (0.48–2.10) | .9970 | 1.07 (0.83–1.37) | .6050 |
| Separated | 0.87 (0.78–0.98) | .0251 | 0.82 (0.71–0.93) | .0037 | 0.93 (0.67–1.28) | .6400 | 0.17 (0.04–0.69) | .0135 | 1.47 (1.00–2.16) | .0515 |
| Never married | 0.87 (0.81–0.93) | .0002* | 0.84 (0.78–0.91) | <.0001* | 0.92 (0.73–1.17) | .4940 | 0.92 (0.60–1.41) | .7080 | 0.98 (0.78–1.25) | .8980 |
| Region | ||||||||||
| Northeast | REF | REF | REF | REF | REF | |||||
| Midwest | 0.91 (0.83–1.00) | .0397 | 0.93 (0.85–1.03) | .1640 | 0.95 (0.69–1.32) | .7770 | 1.02 (0.52–1.97) | .9640 | 0.57 (0.40–0.80) | .0017* |
| South | 0.80 (0.74–0.86) | <.0001* | 0.84 (0.77–0.91) | .0001* | 0.66 (0.50–0.88) | .0045 | 0.78 (0.43–1.40) | .3940 | 0.66 (0.48–0.89) | .0078 |
| West | 0.98 (0.89–1.07) | .6080 | 1.05 (0.95–1.15) | .3520 | 0.90 (0.60–1.33) | .5870 | 0.96 (0.58–1.58) | .8680 | 0.70 (0.51–0.97) | .0335 |
| Survey year | ||||||||||
| 2006/2007 | REF | REF | REF | REF | REF | |||||
| 2010/2011 | 0.79 (0.75–0.82) | <.0001* | 0.78 (0.74–0.82) | <.0001* | 0.74 (0.63–0.86) | .0002* | 0.82 (0.57–1.19) | .3010 | 0.91 (0.75–1.10) | .3260 |
| How soon smoke first cigarette after awakening | ||||||||||
| ≥30 min | REF | REF | REF | REF | REF | |||||
| <30 min | 0.84 (0.79–0.88) | <.0001* | 0.83 (0.79–0.87) | .0000* | 0.77 (0.65–0.92) | .0039* | 0.79 (0.52–1.21) | .2840 | 0.88 (0.70–1.09) | .2400 |
| No regular pattern | 0.54 (0.44–0.67) | <.0001* | 0.58 (0.45–0.76) | .0001* | 0.49 (0.29–0.81) | .0058 | 0.11 (0.02–0.58) | .0098 | 0.53 (0.29–0.98) | .0424 |
| Usual cigarette type | ||||||||||
| Non-menthol | REF | REF | REF | REF | REF | |||||
| Menthol | 1.00 (0.93–1.07) | .9590 | 0.99 (0.93–1.07) | .8650 | 1.19 (0.99–1.44) | .0687 | 0.95 (0.56–1.59) | .8310 | 0.99 (0.79–1.24) | .9350 |
| No usual type | 0.69 (0.56–0.84) | .0003* | 0.68 (0.54–0.85) | .0010* | 0.60 (0.39–0.93) | .0212 | 1.01 (0.48–2.09) | .9840 | 0.65 (0.42–1.00) | .0522 |
| Quit attempts in past 12 months | ||||||||||
| No | REF | REF | REF | REF | REF | |||||
| Yes | 6.75 (6.37–7.14) | <.0001* | 6.44 (6.06–6.84) | <.0001* | 9.50 (8.00–11.27) | <.0001* | 5.95 (4.05–8.75) | <.0001* | 7.81 (6.56–9.31) | <.0001* |
| Cigarette type × NH AA | ||||||||||
| Non-menthol & other racial/ethnic groupsb | REF | |||||||||
| Menthol & NH AA | 1.20 (1.01–1.43) | .0424 | ||||||||
| No usual type & NH AA | 0.92 (0.59–1.42) | .7050 | ||||||||
AA = African American; AOR = adjusted odds ratio; CI = confidence interval; N = unweighted sample size; NH = non-Hispanic. All the results are estimated from the weighted analysis. p value was based on the Wald Chi-Square test statistic for each coefficient in the multiple logistic regression.
aNon-Hispanic Other group was not included in the subsample analysis.
bInclude all racial/ethnic smokers except NH AA.
*p value < the Bonferroni-adjusted significance level at .01 (=.01/1) for gender, survey year, and quit attempts; at .005 (=.01/2) for education, smoke <30min after waking, cigarette type, and the interaction term of cigarette type × NH AA; at .0033 (=.01/3) for age, family income, marital status, and region; and at .0025 (=.01/4) for race/ethnicity.