Characteristic Completers (n = 38) Non-completers (n = 27) p
Age, mean (SD) 44.66 (8.20) 40.78 (9.82) t = 1.73, 63 df, p = 0.09
Marital status, n (%)
Married
Single
Separated / Widowed

23 (60.53)
3 (7.89)
12 (31.58)

18 (66.67)
3 (11.11)
6 (22.22)
χ2 = 0.85, 2 df, p = 0.69
Education, n (%)
12th grade or less
High school or more

20 (52.63)
18 (47.37)
14 (51.85) 13 (48.15) χ2 < 0.01, 1 df, p > 0.99
Quantity of ethanol per day (in grams), mean
(SD)a

288.42
(155.10)

343.93
(236.83)
t = -1.14, 63 df, p = 0.26
Years since alcohol-related problems occurred, mean (SD) 13.37 (8.79) 12.33 (11.01) t = 0.42, 63 df, p = 0.68
Early Onset Alcoholics, n (%) 15 (39.47) 13 (48.15) χ2 = 0.48, 1 df, p = 0.49
Family history of alcoholism, n (%) 31 (81.58) 21 (77.78) χ2 = 0.14, 1 df, p = 0.71
Previous treatments for alcoholism, n (%) 28 (73.68) 15 (55.56) χ2 = 2.32, 1 df, p = 0.13
Monthly income (in R$, the Brazilian currency)
mean (SD)

1476.32 (1006.40)

1577.22
(1444.29)
t = - 0.33, 63 df, p = 0.74
Cigarettes smoked/day
mean (SD)
15.79
(11.22)
16.67
(10.41)
t = - 0.32, 63 df, p = 0.75
aIndicates alcohol usage during the last three months preceding the study
Table 3: Baseline psychosocial characteristics and alcohol use-related aspects between completers and non-completers of treatment.
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