Table 1.
Demographic and clinical characteristics by smoker consumption levels
| Intake variable | Light smokers (1–15 cigarettes/day; n = 241; 25%) |
Moderate smokers (16–24 cigarettes/day; n = 302; 32%) |
Heavy smokers (≥25 cigarettes/day; n = 412; 43%) |
Total (N = 955; 100%) |
|---|---|---|---|---|
| Sex [n (%)] | ||||
| Male | 181 (25) | 226 (31) | 322 (44) | 729 (76) |
| Female | 60 (27) | 76 (34) | 90 (40) | 226 (24) |
| Race [n (%)] | ||||
| White | 179 (24) | 247 (33) | 322 (43) | 748 (78) |
| African American | 26 (25) | 24 (23) | 54 (52) | 104 (11) |
| Hispanic | 29 (33) | 27 (31) | 31 (35) | 87 (9) |
| Other | 7 (43) | 4 (25) | 5 (31) | 16 (2) |
| Age in years [M (SD)]** | 36.8 (10.6) | 37.8 (9.4) | 41.9 (10.5) | 39.3 (10.4) |
| Years of education [M (SD)] | 12.9 (2.1) | 13.0 (1.9) | 12.9 (2.1) | 12.9 (2.1) |
| Lifetime weeks of use [M (SD)]** | 878.2 (580.8) | 1,084.4 (494.9) | 1,314.6 (556.6) | 1,131.7 (571.8) |
| Percentage of days abstinent from alcohol [M (SD)]* | 59.6 (39.2) | 53.4 (39.5) | 48.9 (41.6) | 53.4 (40.0) |
| Drinks per drinking day [M (SD)]* | 3.9 (1.2) | 4.0 (1.1) | 4.2 (1.3) | 4.0 (1.2) |
*
p < .01.
**
p < .001.