Table 1.
Demographic Characteristics of Participants in the NHANES 2011–2014 Sample and Stratified by Smoking Status Classification
| Entire NHANES sample | Current and former chronic smokersa | Current chronic high dependent smokers b | Chronic active smokers c | High dependent active smokers d | High dependent smoker-drinkers e | |
|---|---|---|---|---|---|---|
| Number of participants | 7418 | 1922 | 582 | 418 | 297 | 214 |
| Gender (%) | ||||||
| Male | 47.2 | 56.6 | 53.7 | 58.4 | 54.5 | 70.6 |
| Female | 52.8 | 43.4 | 46.4 | 41.6 | 45.5 | 29.4 |
| Age (years) | 57.8 ± 12.2 | 59.4 ± 11.6 | 59.8 ± 9.6 | 54.5 ± 10.5 | 54.0 ± 10.2 | 53.2 ± 8.8 |
| Race (%) | ||||||
| Mexican American | 6.2 | 3.1 | 1.1 | 1.9 | 2.4 | 1.8 |
| Other Hispanic | 4.9 | 3.0 | 2.7 | 2.5 | 2.2 | 1.9 |
| NonHispanic white | 71.2 | 79.9 | 80.5 | 79.1 | 76.5 | 81.7 |
| NonHispanic black | 10.7 | 9.0 | 9.5 | 9.6 | 11.3 | 10.3 |
| NonHispanic Asian | 4.8 | 2.0 | 1.1 | 1.0 | 1.1 | <1 |
| Other/multi-race | 2.2 | 3.0 | 5.1 | 5.8 | 6.5 | 4.0 |
| Education (%) | ||||||
| < High school | 17.1 | 21.2 | 27.5 | 24.6 | 26.6 | 32.7 |
| ≥High school | 82.9 | 78.8 | 72.5 | 75.4 | 73.4 | 67.3 |
| Income-to-poverty ratio (% ≤1) | 12.9 | 15.6 | 25.5 | 17.9 | 23.1 | 30.8 |
| Marital status | ||||||
| Married(%) | 63.2 | 56.6 | 49.9 | 51.4 | 46.9 | 48.3 |
| Heavy drinkers (%) | 15.5 | 30.5 | 37.4 | 33.6 | 32.7 | 100.0 |
a≥10 PY (packs smoked per day × years smoked) smokers.
b≥10 PY smokers who report Time to First Cigarette (TTFC) as <30 minutes.
c≥10 PY smokers with serum cotinine ≥ 10 ng/ml.
dSmokers who report TTFC as <30 minutes with serum cotinine ≥ 10 ng/ml.
eSmokers who report TTFC as <30 minutes as well as consuming 4/5 alcoholic drinks on most/every day.