The total sample had a weighted n of 144,583. The sample had a weighted mean age of 47·8 years (SD=18·59), 51·0% (unweighted n=72,374) were female, and 44·9% (unweighted n=60,069) were of social grade C2DE. Of the total sample, 19·1% were past year-smokers (unweighted n=26,801) and 17·6% were current smokers (unweighted n=24,811). Of the total sample, 0·6% (unweighted n=852) were at risk of alcohol dependence, 70·7% (unweighted n=100,494) were drinkers not at risk of alcohol dependence and 28·6% (unweighted n=42,659) were non-drinkers.
