Baseline consumption categories were defined using volume and frequency data reported at phase 1: non‐current drinkers (no alcohol consumption throughout the year prior to interview), infrequent drinkers (consumed alcohol in the year preceding interview but did not drink in the week prior to measurement), 0.1–50.0 g/week, 50.1–100.0 g/week, 100.1–150.0 g/week, 150.1–250.0 g/week and > 250.0 g/week. For women, among whom the volume of alcohol consumption was lower, the top drinking categories were merged (> 100.0 g/week).
