Table 1.
Demographics and smoking variables of light, moderate, and heavy smokers.
| Measure | Light (N=45) | Moderate (N=61) | Heavy (N=30) | χ2 or F-Value | p value |
|---|---|---|---|---|---|
| Age in years, mean (SD) | 41.6 (10.9) | 42.8 (10.7) | 47.0 (9.4) | 2.49 | 0.09 |
| Gender, percent female | 60.0 | 39.3 | 16.7 | 14.11 | <0.001 |
| Race, percent | 12.62 | 0.03 | |||
| Black, non-Hispanic | 35.6 | 18.0 | 3.3 | ||
| White, non-Hispanic | 48.9 | 68.9 | 80.0 | ||
| Hispanic | 6.7 | 9.8 | 10.0 | ||
| Other | 8.8 | 3.3 | 6.7 | ||
| CPD, mean (SD) | 9.9 (2.2) | 19.3 (2.0) | 31.5 (6.1) | 363.59 | <0.0001 |
| CO in ppm, mean (SD) | 18.5 (9.6) | 27.5 (15.0) | 35.7 (18.0) | 13.52 | <0.0001 |
| FTND scores, mean (SD) | 3.0 (1.7) | 4.9 (1.6) | 6.3 (2.2) | 33.33 | <0.0001 |
| Years of smoking, mean (SD) | 19.9 (12.2) | 24.3 (11.6) | 27.1 (9.5) | 3.93 | 0.02 |
| Age at smoking initiation, mean (SD) | 18.3 (6.1) | 17.4 (4.6) | 18.0 (5.1) | 0.35 | 0.70 |
CPD: cigarettes per day; CO in ppm: carbon monoxide in parts per million; FTND: Fagerström Test for Nicotine Dependence; SD: standard deviation.