Table 1.
Group Demographics, Alcohol and Cigarette Use Histories, Self-Report Questionnaires and Comorbidity Frequency
| Measure | CON (n = 33) | ABS (n = 42) | REL (n = 72) | Group comparisons* |
|---|---|---|---|---|
| Age (years) | 46.1 (9.4) | 52.0 (12.2) | 50.1 (8.2) | CON < ABS, REL |
| Education (years) | 16.7 (2.5) | 14.6 (2.2) | 13.4 (1.8) | CON > ABS, REL; ABS > REL |
| Caucasian (%) | 73 | 80 | 71 | |
| Duration of Abstinence at AP1 | NA | 7 (4) | 7 (3) | |
| Duration of Abstinence at AP2 | NA | 33 (8) | 33 (10) | |
| Days until relapse | NA | NA | 141 (79) | |
| 1-yr average drinks/month | 16 (17) | 352 (178) | 431 (249) | CON < ABS, REL |
| Lifetime average drinks/month | 16 (14) | 181 (107) | 246 (192) | CON < ABS, REL; ABS < REL |
| Medical comorbidity (%) | NA | 45 | 53 | |
| Substance use disorder | NA | 24 | 22 | |
| Comorbidity (%) | NA | 21 | 18 | |
| Psychiatric comorbidity (%) | NA | 24 | 49 | ABS < REL |
| Smokers (%) | NA | 52 | 62 | |
| FTND | NA | 5 (2) | 5 (2) | |
| Pack years | NA | 27 (17) | 27 (21) | |
| Smoking duration (years) | NA | 27 (12) | 26 (12) | |
| BDI | 4 (3) | 9 (8) | 10 (8) | CON < ABS, REL |
| STAI | 33 (7) | 46 (10) | 50 (13) | CON < ABS, REL |
| Body mass index | 25 (5) | 26 (5) | 27 (5) | |
| Intracranial volume (cc) | 1509 (136) | 1516 (132) | 1497 (127) |
Note. ABS: Abstainers. AP1: assessment point 1. AP2: assessment point 2.BDI: Beck Depression Inventory. CON: Controls. FTND: Fagerstrom Tolerance Test for Nicotine Dependence. NA: not applicable. REL: Relapsers. STAI: State -trait Anxiety Inventory – Trait.
*
All listed group comparisons p < .05. Mean (SD).