Age at first drink was reported by participants in response to the question ‘How old were you the first time you had more than a sip of beer, wine or spirits’. To reduce the effects of outliers, those reporting ages below 5 years (30 individuals) were equated to 5 years and those reporting greater than 23 years of age at 1st drink (51 individuals) were equated to 23 years. Mean age for the 1st drink was 16.2 years [SD 2.5y] and 15.3 years [SD 2.6y] in women and men respectively.