Table 1. Sample Descriptive Statistics and Association of Covariates With Smoking Status.
| Covariate | Prevalence, No. | Prevalence of Smoking Stratified By Covariate Status, Row %a | Association With Smoking Status, OR (95% CI)a,b | ||||
|---|---|---|---|---|---|---|---|
| Never Smoker | Former Smoker | Current Smoker | Current vs Never Smoker | Current vs Former Smoker | Former vs Never Smoker | ||
| Sex | |||||||
| Male | 123 273 | 50.3 | 29.1 | 20.7 | 1 [Reference] | 1 [Reference] | 1 [Reference] |
| Female | 154 775 | 61.9 | 21.9 | 16.1 | 0.65 (0.63-0.67)c | 1.14 (1.10-1.17)c | 0.57 (0.56-0.58)c |
| Race/ethnicity | |||||||
| Non-Hispanic white | 176 248 | 52.2 | 28.6 | 19.2 | 1 [Reference] | 1 [Reference] | 1 [Reference] |
| Hispanic | 43 467 | 69.5 | 17.5 | 13.0 | 0.51 (0.49-0.53)c | 0.91 (0.86-0.95)c | 0.56 (0.54-0.58)c |
| Non-Hispanic other | 58 333 | 65.6 | 16.7 | 17.8 | 0.72 (0.69-0.75)c | 1.38 (1.32-1.44)c | 0.52 (0.51-0.54)c |
| Age, y | |||||||
| 25-34 | 53 617 | 64.2 | 13.9 | 21.9 | 1 [Reference] | 1 [Reference] | 1 [Reference] |
| 35-44 | 50 568 | 62.2 | 17.3 | 20.5 | 0.96 (0.92-1.00)c | 0.75 (0.72-0.79)c | 1.28 (1.22-1.33)c |
| 45-54 | 52 372 | 56.0 | 21.2 | 22.8 | 1.14 (1.10-1.19)c | 0.68 (0.65-0.71)c | 1.68 (1.61-1.75)c |
| 55-64 | 51 315 | 51.0 | 29.6 | 19.4 | 1.06 (1.01-1.10)c | 0.42 (0.40-0.44)c | 2.53 (2.43-2.63)c |
| ≥65 | 70 176 | 51.5 | 39.2 | 9.2 | 0.50 (0.48-0.53)c | 0.15 (0.14-0.16)c | 3.37 (3.25-3.50)c |
| Survey year | |||||||
| 2008-2009 | 44 206 | 54.2 | 25.0 | 20.8 | 1 [Reference] | 1 [Reference] | 1 [Reference] |
| 2010-2011 | 53 815 | 55.6 | 24.8 | 19.6 | 0.92 (0.89-0.96)c | 0.96 (0.91-1.01) | 0.96 (0.92-1.00)c |
| 2012-2013 | 62 009 | 56.3 | 25.2 | 18.5 | 0.87 (0.83-0.90)c | 0.91 (0.86-0.95)c | 0.96 (0.92-0.99)c |
| 2014-2015 | 63 811 | 58.2 | 25.2 | 16.6 | 0.76 (0.73-0.79)c | 0.83 (0.79-0.87)c | 0.91 (0.88-0.95)c |
| 2016-2017 | 54 207 | 58.6 | 25.6 | 15.8 | 0.73 (0.69-0.77)c | 0.79 (0.75-0.84)c | 0.92 (0.88-0.96)c |
| Region | |||||||
| Northeast | 46 235 | 56.6 | 27.0 | 16.5 | 1 [Reference] | 1 [Reference] | 1 [Reference] |
| Midwest | 60 223 | 53.2 | 26.0 | 20.9 | 1.27 (1.20-1.35)c | 1.28 (1.20-1.36)c | 1.00 (0.95-1.04) |
| South | 100 247 | 56.9 | 23.9 | 19.3 | 1.20 (1.14-1.27)c | 1.27 (1.20-1.34)c | 0.95 (0.91-0.99)c |
| West | 71 343 | 60.0 | 25.1 | 14.9 | 0.89 (0.83-0.95)c | 0.93 (0.87-0.98)c | 0.96 (0.92-1.00) |
Abbreviation: OR, odds ratio.
a
Weighted to the US population.
b
Association between respective covariate and respective smoking status pairwise contrast in multivariable polytomous regression models that included sex, race/ethnicity, age, survey year, and region as simultaneous regressors.
c
Statistically significant after Benjamini-Hochberg correction to maintain studywise false discovery rate at .05.