Omni | Own cigarette | |
---|---|---|
*p<0.05. | ||
CO, carbon monoxide; cr, creatinine; SEM, standard error of the mean; SOC, stage of change. | ||
Cigarettes/day | 31 (2) | 30 (2) |
Butts returned | 27 (2) | 26 (2) |
Number of puffs | 11.6 (0.5)* | 12.7 (0.7) |
Volume/puff (ml) | 49 (2) | 50 (2) |
Total puff volume (ml) | 547 (25)* | 612 (34) |
CO boost (ppm) | +4.8 (0.5)* | +4.0 (0.5) |
Craving/factor 1 | 4.8 (0.2) | 4.6 (0.2) |
Craving/factor 2 | 2.9 (0.2) | 2.9 (0.2) |
Total withdrawal discomfort | 7.7 (0.9) | 7.9 (0.9) |
Total cotinine (ng/ml/cr) | 4178 (400)* | 5096 (484) |
Total nicotine | 2853 (319) | 3295 (366) |
Total NNAL (pmol/mg/cr) | 2.9 (0.3) | 3.5 (0.4) |
1-HOP (pmol/mg/cr) | 1.5 (0.2) | 1.7 (0.1) |