Table 4.
Comparison of within group outcomes by use trajectory at week 6
| Baseline |
Week 6 |
Mean ∆ | SD | p | |||
|---|---|---|---|---|---|---|---|
| M | SD | M | SD | ||||
| Exclusive EC users | |||||||
| Cigarette dependence | 50.90 | 12.84 | 18.52 | 7.97 | −32.38 | 15.35 | <.001 |
| Withdrawal | 15.09 | 7.88 | 8.84 | 7.46 | −6.25 | 6.55 | <.001 |
| Craving | 16.97 | 7.64 | 5.53 | 1.30 | −11.44 | 7.90 | <.001 |
| Cigarettes per day | 11.19 | 5.54 | 0.00 | 0.00 | −11.19 | 5.54 | <.001 |
| Cotinine | 1362.39 | 2111.63 | 1074.77 | 839.81 | −287.62 | 2077.33 | .439 |
| Duals users | |||||||
| Cigarette dependence | 46.16 | 14.00 | 27.69 | 14.01 | −18.48 | 15.55 | <.001 |
| Withdrawal | 14.33 | 7.79 | 11.15 | 7.74 | −3.18 | 7.63 | .001 |
| Craving | 17.83 | 8.10 | 8.23 | 5.10 | −9.56 | 8.31 | <.001 |
| Cigarettes per day | 12.40 | 7.88 | 3.01 | 3.41 | −9.39 | 7.75 | <.001 |
| Cotinine | 1145.56 | 1029.60 | 1281.26 | 1708.76 | 135.70 | 1649.62 | .506 |
| Exclusive smokers | |||||||
| Cigarette dependence | 52.20 | 16.62 | 37.53 | 17.13 | −14.67 | 16.21 | .004 |
| Withdrawal | 12.53 | 4.53 | 13.13 | 5.29 | 0.60 | 7.64 | .766 |
| Craving | 16.93 | 11.69 | 10.93 | 8.56 | −6.00 | 12.22 | .089 |
| Cigarettes per day | 14.75 | 11.50 | 11.36 | 11.97 | −3.38 | 7.65 | .097 |
| Cotinine | 1274.52 | 955.07 | 1267.21 | 820.29 | −7.31 | 659.61 | .966 |
Note. Bolded values indicate statistically significant omnibus tests. Scale ranges: Cigarette dependence = 15-76; Withdrawal = 0-32; Craving = 5-35.