Table 1: Comparison of sociodemographic and drinking characteristic between nonparticipant, responders and nonresponders among those patients who were referred to the test by the staff.

Non-participants -value (nonparticipants versus nonresponders)Nonresponders -value (nonresponders versus responders)Responders -value (nonparticipants versus responders)

Gender ( ) (%) (%) (%)
 Male455 (57)102 (71)123 (59)
 Female342 (43) 41 (29) 85 (41)
Total797 (100).002143 (100).023208 (100).637

Age ( ) (%) (%) (%)
 18–2066 (8) 9 (6) 5 (2)
 21–30110 (14)16 (11)10 (5)
 31–4084 (11)13 (9)23 (11)
 41–50126 (16)24 (17)31 (15)
 51–60188 (24)38 (27)52 (25)
215 (27)42 (30)87 (42)
Total789 (100).816142 (100).034208 (100).000

Weekly consumption, g/week ( )
 Median (range)72 (480)96 (480)72 (468)
 Mean (SE)106.6 (3.2).170118.2 (8.5).00689.7 (5.7).010

Frequency of HED, no. of HED occasions/month ( )
 Median (range)3 (30)3 (30)3 (30)
 Mean (SE)4.7 (0.2).5225.1 (0.6).6914.5 (0.4).420