1. |
Lifetime or long-term abstainer: Lifetime abstainers never had a drink or had less than 12 drinks in their entire lifetime, while long-term abstainers have not drunk for at least four years and do not report evidence of ever drinking in the past. |
2. |
Current abstainer: Does not drink now, but drank in the past (or we cannot rule out that they ever drank in the past). |
3. |
Occasional drinker: Frequency less than 1 day per week, drinks per day ≥3 for men or ≥2 for women, and no binging in a single day >5 for men or >4 for women. |
4. |
Moderate drinker: Frequency 1 or more days per week, drinks per day <3 for men or <2 for women, and no binging in a single day >5 for men or >4 for women. |
5. |
Heavy drinker: Men have >3 drinks per day or binge >5 in a single day, and women have >2 drinks per day or binge >4 in a single day. |