Table 1.
Demographic and smoking characteristics of subjects participating in Experiment 1 and 2.
| Experiment 1 | Experiment 2 | ||||
|---|---|---|---|---|---|
| Treatment condition | 5 mA | 10 mA | 0 mA | i5 mA | 10 mA |
| (N = 20) | (N = 20) | (N = 17) Placebo | (N = 20) A proxy of placebo | (N = 21) | |
| Gender (N, %) | |||||
| Female | 0 (0) | 2 (10) | 2 (12) | 7 (35) | 6 (29) |
| Male | 20 (100) | 18 (90) | 15 (88) | 13 (65) | 15 (71) |
| Age (years), Mean ± SD | 30.8 ± 6.47 | 30.5 ± 8.78 | 25.9 ± 4.75 | 23.5 ± 3.58 | 24.7 ± 4.85 |
| Number of cigarettes per day Median (range) | 20 (15–35) | 18.5 (15–28) | 19 (15–28) | 18.3 (15–25) | 17.0 (15–23) |
| Years of smoking Median (range) | 14 (5–31) | 13.5 (6–38) | 9.0 (1–23) | 7.5 (4–13) | 8.0 (5–28) |
| FTND Median (range) | 5.5 (4–8) | 5.5 (4–8) | 7.0 (4–8) | 7.0 (4–9) | 6.0 (4–8) |