Table 1.
Sample characteristics at initial assessment and during the post-resolution interactive voice response (IVR) interval
| Callers (n = 70) |
Noncallers (n = 17) |
Test statistic |
Whole sample (N = 87) |
|||||
| Variable | n | % | n | % | χ2 | p | n | % |
| Demographic characteristics | ||||||||
| Male gender | 41 | 58.6 | 14 | 82.4 | 3.33 | n.s. | 55 | 63.2 |
| Ethnic minority | 34 | 48.6 | 10 | 58.8 | 1.12 | n.s. | 44 | 50.6 |
| Married | 26 | 37.7 | 8 | 47.1 | 0.50 | n.s. | 34 | 39.5 |
| Employed full/part time | 45 | 66.2 | 11 | 73.3 | 4.02 | .045 | 56 | 67.5 |
| Abstinent at enrollment | 59 | 84.3 | 11 | 64.7 | 3.34 | n.s. | 70 | 80.5 |
| M | SD | M | SD | t | p | M | SD | |
| Age, in years | 47.91 | 10.56 | 40.82 | 15.21 | 1.82 | n.s. | 46.53 | 11.86 |
| Years of education | 14.20 | 3.11 | 13.35 | 1.84 | 1.08 | n.s. | 14.03 | 2.91 |
| Annual income, in U.S. $ | 50,626 | 60,548 | 41,971 | 27,651 | 0.57 | n.s. | 48,935 | 55,637 |
| History of drinking problems | ||||||||
| Problem-drinking duration, in years | 16.30 | 11.69 | 11.06 | 8.50 | 2.04 | .049 | 15.11 | 11.21 |
| Alcohol Dependence Scale (47)a | 18.13 | 9.49 | 18.81 | 9.23 | -0.27 | n.s. | 18.26 | 9.39 |
| Michigan Alcoholism Screening Test (25)a | 12.59 | 3.76 | 13.41 | 3.97 | -0.80 | n.s. | 12.76 | 3.79 |
| Drinking Problems Scale (40)a | 17.38 | 9.10 | 20.06 | 9.74 | -1.07 | n.s. | 17.91 | 9.24 |
| Pre-resolution–year drinking practices | ||||||||
| (Timeline Followback interview) | ||||||||
| % high-risk drinking daysb | 60.88 | 37.30 | 75.86 | 30.33 | -1.54 | n.s. | 63.81 | 36.37 |
| M standard drinks/drinking day | 10.04 | 6.41 | 13.52 | 8.65 | -1.87 | n.s. | 10.71 | 7.00 |
| Post-resolution IVR substance-related reports | ||||||||
| % high-risk drinking daysb | 3.84 | 11.43 | ||||||
| M standard drinks per drinking day | 3.41 | 3.49 | ||||||
| M urge to drink ratingsc | 1.84 | 1.90 | ||||||
| % drug use days | 2.80 | 12.67 | ||||||
Notes: Demographic and pre-resolution drinking variables are based on enrolled sample of 87. Post-resolution variables are based on IVR callers (n = 70) except for M drinks per drinking day, which are based on 42 callers who reported drinking. n.s. = not significant.
Maximum possible questionnaire scores are given in parentheses; higher scores indicate higher dependence levels (Alcohol Dependence Scale) or greater alcohol-related problems (Michigan Alcoholism Screening Test, Drinking Problems Scale).
High-risk drinking days are based on National Institute on Alcohol Abuse and Alcoholism (2005) gender-adjusted cut points (five or more standard drinks for men, four or more drinks for women).
Urges to drink were rated on a 10-point scale (0 = no urge to drink and 9 = strongest urge ever to drink).