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Table 1 Demographics

From: Validation of the AUDIT-C in adults seeking help with their drinking online

Demographic variables Female N = 2053 Male N = 1667
Age (years): mean (SD) 37 (11) 38 (11)
Educated at least to degree level: n (%) 1039 (50) 853 (51)
White British: n (%) 1785 (86) 1363 (82)
Living in UK: n (%) 1883 (91) 1439 (86)
AUDIT-C: mean (SD) 8 (2) 9 (2)
Past week’s alcohol consumption in units: arithmetic mean (SD)a 48 (30) 64 (42)
Past week’s alcohol consumption in units: geometric mean (approx. SDb)a 35 (4) 43 (5)
Number of drinking days in past week: mean (SD)a 5 (2) 5 (2)
Number of days drinking >6 ♀/>8 ♂ units of alcohol in past week: mean (SD)a 3 (2) 3 (2)
Drinking >14 ♀/>21 ♂ units of alcohol in past week: n (%)a,c 1901 (91) 1486 (89)
Drinking >35 ♀/>50 ♂ units of alcohol in past week: n (%)a,d 1298 (62) 937 (56)
  1. aDrinking measures using data collected by the TOT-AL
  2. bApproximate SD back-calculated from the log-scale
  3. cAbove weekly limits
  4. dHigher risk drinking