Comparison of sociodemographical data and variables relating to the consumption of alcohol and drugs in alcohol-dependent subjects with or without periods of abstinence (according to Schuckit et al., 1997)

At least one period of abstinence of 3 months or more
No (n = 823) Yes (n = 1,030) Statistical test1
Continuous variables (mean ± SD)
Age at interview (years)36.1 ± 12.1737.8 ± 11.78−3.022
Age when first drank alcohol (years)17.9 ± 5.1117.1 ± 4.953.162
Age of onset of dependency25.9 ± 9.4523.8 ± 8.215.113
Duration of dependency (years)10.2 ± 9.2714.0 ± 8.92−8.993
Number of DSM- III-R criteria  5.4 ± 2.04  6.4 ± 2.08−10.353
Sex
% of men Family status71.166.05.414
Family status23.373
Married39.440.9
Separated/divorced19.426.3
Widow1.01.8
Never married40.230.9
Primary psychiatric diagnosis
Alcohol dependency57.755.19.234
Treatment
Attends AA meetings32.359.5135.683
Hospitalisation33.255.162.283
Regardless of treatment41.164.399.143
Substance usage (whole life)5
Marijuana52.655.31.37
Amphetamines36.748.324.913
Cocaine53.259.26.712
Opiates26.136.121.113
Hypnotics, sedatives32.442.218.643
1

The statistical test used to compare the mean values is Student's test. The ki2 test is used to compare the percentages.

2

The statistical test is significant at p < 0.01 or better.

3

The statistical test is significant at p < 0.001 or better.

4

The statistical test is significant at p < 0.05 or better.

5

Based on the use of a substance 11 times or more during a year, throughout life (21 times or more for marijuana).

From: Alcohol: Social damages, abuse, and dependence

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