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Frequency of alcohol consumption (days/week) during 6 months’ follow-up
| Frequency (days/week) | Cases (n=40), n (%) | Controls (n=40), n (%) | P |
|---|---|---|---|
| 0 | 9 (22.5) | 4 (10) | 0.004 |
| 1 | 10 (25) | 2 (5) | |
| 2 | 16 (40) | 15 (37.5) | |
| 3 | 5 (12.5) | 18 (45) | |
| 4 | 0 | 1 (2.5) |
Chi-square test
