Table 1. Population Characteristics for the Three Groups.
| Characteristics | Controls (n=31) | SDTx (n=17) | MDTx (n=12) | Statistics |
|---|---|---|---|---|
| Age (years), mean (SD) | 40.2 (8.7) | 37.6 (9.6) | 44.4 (9.5) | F(2,59)=1.79, NS |
| Men, no | 16 | 11 | 7 | χ2(2)=.78, NS |
| IQa, mean (SD) | 106.7 (7.3) | 101.9 (7.1) | 106.3 (6.3) | F(2,59)=2.62, NS |
| Detoxb, mean (SD) | NA | 1.3 (0.5) | 4.3 (1.5)c | t(12.6)=−6.65, p<.001 |
| Age of starting heavy drinking, mean (SD) | NA | 23.9 (10.3) | 25.5 (7.9) | t(27)=-.477, NS |
| SADQb, mean (SD) | NA | 33.1 (14.3) | 46.8 (6.4)c | t(23.7)=−3.48, p<.001 |
| ICQ, mean (SD) | 11.2 (2.6) | 12.7 (1.4) | t(27)=−1.56, NS | |
| Units/dayb, mean (SD) | 2.1 (2.1) | 39.1 (39.8) | 48.1 (34.8) | F(2,59)=18.59, p<.001 |
| Smokers, nob | 6 | 14 | 9c | χ2(2)=26.00, p<.001 |
| Cigarettes per day, mean (SD) | 9.0 (5.7) | 24.6 (18.1) | 23.6 (8.2) | F(2,28)=2.90, NS |
| Years smoked, mean (SD) | 20.8 (12.9) | 20.4 (11.9) | 20.8 (9.0) | F(2,20)<.01, NS |
| Fagerstrom score (FTQ), mean (SD) | 3.8 (2.4) | 6.5 (2.8) | 8.0 (2.4) | F(2,21)=3.43, NS |
| BDIb mean (SD) | 6.4 (7.6) | 18.8 (11.3) | 13.7 (11.6) | F(2,59)=9.60, p<.001 |
| State anxiety (STAI)b, mean (SD) | 30.2 (7.6) | 38.8 (9.9) | 39.7 (14.2) | F(2,59)=6.35, p<.01 |
| Trait anxiety (STAI)b, mean (SD) | 36.6 (9.8) | 50.6 (10.3) | 46.3 (12.1) | F(2,59)=10.82, p<.001 |
Abbreviations: BDI, Beck Depression Inventory; ICQ, impaired control scale questionnaire; MDTx, multiply detoxified; NART, National Adult Reading Test; SADQ, Severity of Alcohol Dependence Questionnaire; SDTx, singly detoxified; STAI, State and Trait Anxiety Inventory.
a
IQ is taken from NART (National Adult Reading Test).
b
Main group effect.
c
Significantly different from SDTx.