Table 2.
Tobacco smoking characteristics of substance dependent individuals by nicotine dose
| Placebo |
Low dose |
High dose |
||||
|---|---|---|---|---|---|---|
| Male | Female | Male | Female | Male | Female | |
| Variable | (n = 9) | (n = 6) | (n = 11) | (n = 5) | (n = 11) | (n = 9) |
| Smoking Chronicity (years) | 24.11 (9.08) | 20.00 (12.41) | 24.18 (11.45) | 22.60 (7.50) | 19.82 (6.56) | 22.00 (9.30) |
| Average cigarettes (per day) | 18.56 (9.36) | 17.00 (11.92) | 19.09 (5.84) | 21.60 (13.52) | 17.55 (4.48) | 17.33 (8.53) |
| Carbon monoxide (screen) | 17.44 (7.11) | 13.33 (8.73) | 21.36 (10.13) | 21.20 (15.74) | 18.18 (6.69) | 22.89 (10.55) |
| Carbon monoxide (test) | 8.22 (2.99) | 6.33 (3.50) | 9.30 (3.74) | 7.00 (3.61) | 8.91 (3.05) | 9.33 (5.48) |
| Fagerström (total score) | 3.44 (2.60) | 4.67 (1.21) | 5.00 (1.73) | 4.50 (2.38) | 4.18 (1.72) | 4.44 (2.24) |
| Smoking consequences (total score) | 43.82 (14.65) | 43.19 (9.28) | 52.59 (11.82) | 47.39 (2.57) | 45.43 (8.20) | 52.70 (9.86) |
| Withdrawal symptoms (prior to task) | 5.11 (3.66) | 3.33 (2.25) | 7.55 (5.30) | 6.75 (4.11) | 5.55 (2.94) | 4.78 (4.27) |
All values are mean (SD).
Fagerström, Fagerström Test for Nicotine Dependence (Heatherton et al., 1991); Smoking consequences, Smoking Consequences Questionnaire (Copeland et al., 1995); Withdrawal symptoms, Withdrawal Symptoms Checklist (Hughes and Hatsukami, 1986).
*Differences between doses nonsignificant.