Demographic, cigarette consumption, and nicotine dependence of participants enrolled in study 4, which investigated the variation of plasma NMR in ad libitum smokers over 44 weeks
| Variable . | Descriptive statistics . |
|---|---|
| N | 43 |
| Sex | |
| Female, n (%) | 14 (32.6) |
| Male, n (%) | 29 (67.4) |
| Race | |
| Asian, n (%) | 4 (9.3) |
| Black, n (%) | 4 (9.3) |
| Mixed, n (%) | 5 (11.6) |
| White, n (%) | 30 (69.8) |
| Age | |
| Mean (SD) | 37.6 (12.1) |
| Range | 20–61 |
| BMI, kg/m2 | |
| Mean (SD) | 25.6 (5.7) |
| Range | 16.5–47.3 |
| CPD | |
| Mean (SD) | 19.2 (7.7) |
| Range | 10–40 |
| ≤10, n (%) | 3 (7.0) |
| 11–20, n (%) | 28 (65.1) |
| 21–30, n (%) | 9 (20.9) |
| >31, n (%) | 3 (7.0) |
| TFC | |
| Mean (SD) | 17.0 (16.9) |
| Range | 1–60 |
| FTND | |
| Mean (SD) | 5.6 (2.0) |
| Range | 1–10 |
| NDSS overall score | |
| Mean (SD) | −0.08 (0.97) |
| Range | −1.93–1.89 |
| Variable . | Descriptive statistics . |
|---|---|
| N | 43 |
| Sex | |
| Female, n (%) | 14 (32.6) |
| Male, n (%) | 29 (67.4) |
| Race | |
| Asian, n (%) | 4 (9.3) |
| Black, n (%) | 4 (9.3) |
| Mixed, n (%) | 5 (11.6) |
| White, n (%) | 30 (69.8) |
| Age | |
| Mean (SD) | 37.6 (12.1) |
| Range | 20–61 |
| BMI, kg/m2 | |
| Mean (SD) | 25.6 (5.7) |
| Range | 16.5–47.3 |
| CPD | |
| Mean (SD) | 19.2 (7.7) |
| Range | 10–40 |
| ≤10, n (%) | 3 (7.0) |
| 11–20, n (%) | 28 (65.1) |
| 21–30, n (%) | 9 (20.9) |
| >31, n (%) | 3 (7.0) |
| TFC | |
| Mean (SD) | 17.0 (16.9) |
| Range | 1–60 |
| FTND | |
| Mean (SD) | 5.6 (2.0) |
| Range | 1–10 |
| NDSS overall score | |
| Mean (SD) | −0.08 (0.97) |
| Range | −1.93–1.89 |