Table 1.
Demographic characteristics by smoking status
| Smoking status | |||||
|---|---|---|---|---|---|
| Total | Never | Former | Current | P-value | |
| N in millions (% of sample) | 119.82 (100) | 61.65 (51.45) | 33.10 (27.62) | 25.07 (20.92) | |
| Unweighted N | 2808 | 1421 | 780 | 607 | |
| Age, years, mean ± SE | 57.71 ± 0.28 | 57.12 ± 0.48 | 62.05 ± 0.38* | 53.41 ± 0.31* ¥ | <0.001 |
| Gender, N (%) | <0.001 | ||||
| Female | 61.97 (51.72) | 34.61 (56.14) | 14.90 (45.02) | 12.45 (49.67) | |
| Male | 57.85 (48.28) | 27.04 (43.86) | 18.20 (54.98) | 12.62 (50.33) | |
| Race, N (%) | <0.001 | ||||
| Non-Hispanic White | 89.25 (74.48) | 44.53 (72.23) | 26.21 (79.19) | 18.51 (73.81) | |
| Non-Hispanic Black | 11.65 (9.72) | 6.16 (10.00) | 2.08 (6.30) | 3.40 (13.56) | |
| Asian | 4.66 (3.89) | 3.35 (5.43) | 0.89 (2.69) | 0.42 (1.68) | |
| Mexican American | 7.09 (5.92) | 4.10 (6.65) | 1.94 (5.86) | 1.05 (4.19)^ | |
| Other Hispanic | 4.54 (3.79) | 2.38 (3.87) | 1.34 (4.04) | 0.82 (3.29) | |
| Other Race | 2.63 (2.19) | 1.13 (1.83) | 0.63 (1.91)^ | 0.87 (3.46)^ | |
| Education, N (%) | <0.001 | ||||
| Less than 9th grade | 4.32 (3.60) | 2.15 (3.49) | 1.21 (3.66) | 0.96 (3.81) | |
| 9 to 11th grade | 11.47 (9.57) | 3.91 (6.35) | 3.08 (9.30) | 4.48 (17.85) | |
| High School Graduate/GED or equivalent | 26.42 (22.05) | 11.09 (17.99) | 7.74 (23.40) | 7.59 (30.25) | |
| Some College or AA degree | 37.81 (31.55) | 18.04 (29.26) | 10.89 (32.91) | 8.87 (35.39) | |
| College Graduate or above | 39.81 (33.23) | 26.46 (42.91) | 10.17 (30.74) | 3.18 (12.69) | |
| Family PIR, mean ± SE | 3.18 ± 0.12 | 3.47 ± 0.12 | 3.30 ± 0.09 | 2.33 ± 0.20* ¥ | <0.001 |
| BMI, kg/m2, mean ± SE | 29.63 ± 0.20 | 29.55 ± 0.30 | 30.39 ± 0.30* | 28.83 ± 0.49¥ | <0.001 |
*P < 0.05 difference compared with never smoker; ¥P < 0.05 difference compared with former smoker; ^SE is >30% of estimate.