Table 2:
Tobacco and alcohol outcomes among young adults in STAND treatment vs. TSP control conditions over 12 months (N=179).
| 3 months | 6 months | 12 months | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| STAND (N=69) | TSP (N=79) | STAND (N=53) | TSP (N=61) | STAND (N=70) | TSP (N=81) | |||||||
| N | % | N | % | N | % | N | % | N | % | N | % | |
| Tobacco Outcomes | ||||||||||||
| Verified abstinence (complete case) | 3 | 4.3% | 4 | 5.1% | 0 | 0% | 1 | 1.9% | 3 | 4.3% | 0 | 0% |
| Verified abstinence (ITT: missing = smoking) | 3 | 3.5% | 4 | 4.3% | 0 | 0% | 1 | 1.2% | 3 | 3.5% | 0 | 0% |
| Self-reported abstinence (complete case) | 15 | 21.7% | 9 | 11.4% | 14 | 26.4% | 14 | 23.0% | 25 | 35.7% | 24 | 29.6% |
| Self-reported abstinence (ITT: missing = smoking) | 15 | 17.6% | 9 | 9.6% | 14 | 16.5% | 14 | 14.9% | 25 | 29.4% | 24 | 25.5% |
| Reduction in cigarettes smoked by 50% or more | 32 | 47.1% | 35 | 44.3% | 35 | 68.6% | 30 | 49.2% | 46 | 66.7% | 46 | 57.5% |
| Quit attempt during treatment | 49 | 71% | 45 | 57.7% | -- | -- | -- | -- | -- | -- | -- | -- |
| Preparation or higher stage of change1 | 37 | 53.6% | 27 | 35.1% | 20 | 37.7% | 23 | 37.7% | 34 | 49.3% | 41 | 50.6% |
| FTCD (mean, SD) | 1.9 | 1.9 | 2.8 | 2.1 | 1.6 | 1.9 | 2.7 | 2.2 | 1.5 | 1.9 | 1.9 | 2.0 |
| Alcohol Outcomes | ||||||||||||
| Days HED in past month (mean, SD) | 4.8 | 7 | 7.6 | 8.2 | 3. 8 | 5.5 | 6 | 7.8 | 3.2 | 5.2 | 5.6 | 7.6 |
| Drinks in past week (median/IQR) | 4 | (0,12) | 6 | (0,17) | 5 | (0,11) | 7 | (0,15) | 1 | (0,7.8) | 4 | (0,16) |
| Plans to limit drinking in next 30 days (or is already) | 40 | 58% | 42 | 54.5% | 28 | 52.8% | 38 | 62.3% | 42 | 60.0% | 54 | 66.7% |
| AUDIT-C (mean, SD) | 3.9 | 2.7 | 5 | 2.9 | 3.7 | 2.7 | 4.8 | 3.0 | 3.5 | 2.4 | 4.1 | 3.1 |
| Tobacco & Alcohol Co-Use Outcomes | ||||||||||||
| Est. % of smoking while drinking (mean, SD) | 33.8 | 33.5 | 47.7 | 36.2 | 35.2 | 36.0 | 43.9 | 37.2 | 26.3 | 33.1 | 35.7 | 36.9 |
| Prop. of past 30 days HED + cigarettes (mean, SD) | 6.9 | 13.2 | 12.7 | 19.0 | 6 | 11 | 11.4 | 21.5 | 4.5 | 9.1 | 9.4 | 17.9 |
| Combined use last drinking occasion | 48 | 69.6% | 63 | 81.8% | 36 | 67.9% | 49 | 80.3% | 43 | 61.4% | 52 | 64.2% |
| Other Outcomes | ||||||||||||
| E-cigarette/vaping in past 30 days | 28 | 40.6% | 49 | 62.0% | 22 | 41.5% | 26 | 42.6% | 32 | 45.7% | 44 | 54.3% |
| Cigarettes in past week (mean, SD) | 40 | 45.7 | 54.7 | 53.6 | 27.5 | 34.3 | 51.3 | 54.3 | 33.8 | 39.5 | 41.5 | 51.2 |
STAND (Smoking Tobacco and Drinking) intervention: Tobacco + Alcohol content; TSP (Tobacco Status Project) intervention: Tobacco only content ITT (intent to treat) sample size: STAND N=85, TSP=94
FTCD: Fagerstrom Test of Cigarette Dependence, HED: heavy episodic drinking, AUDIT-C: Alcohol Use Disorder Identification Test - Concise SD: standard deviation, IQR: interquartile range
1
Has quit smoking or plans to quit smoking in the next 30 days & had quit attempt since the last since survey assessment