Harmen Beurmanjer

165 Supplements Population description and results Demographics: 80.3% male; M=31.85, SD=9.80 years; ≤ high school (12%), some college (38%), college degree (39%), graduate degree (12%); married (15%), co-habitate (13%), divorced (15%), never married (57%); employment fulltime (57%), part-time (10%), never (15%), other (18%). Other: mental health history (59%). GHB use: Past year: 93.4%, median use level ≤3 times per month. Qualified GHB/ analogue use disorder: 41.0%. Previously treated for GHB abuse: 30%. Function beginning to use: get high (79%), be more sociable (78%), improve sleep (76%), assist with depression or anxiety (72%), improve sex (71%), feel more energized (67%), and enhance dancing (64%). Other substance use: Reported other drug use (N=54) at least once a month were alcohol (68%), nicotine (50%), Cannabis (36%), melatonin (28%), ginko biloba (26%), and sleep aids (26%). Co-use with GHB (N=52): nicotine (38%), speed or amphetamine (30), ecstasy (26%), cannabis (24%), ketamine (12%), gingseng (12%), and prescription antidepressants (12%). Demographics: 74.1% male; M=29.1, SD=8.6 years. Other: 64.6% heterosexual, 14.3% bisexual, 21.1% homosexual. GHB use: Most common functions of GHB were recreation (65.3%) and to enhance sex (60.3%). Most primary use function were recreation (but not in night clubs) (18.3%), to enhance sex (18.3%), to be sociable (13.1%), and to explore altered states of consciousness (13.1%). Other substance use: Most reported other substances were alcohol (96.8%), ecstasy (92.1%), and cannabis (90.5%). Reported co-ingestion in 68% including ecstasy (32.4%), alcohol (17.3%), cannabis (15.6%), and amphetamine (10.4%). More home users (52%) mixed GHB with other substances than those reporting use primarily in nightlife settings (26%). Homosexual respondents reported higher scores for positive sexual effects than heterosexuals (p < 0.05). This corresponds with the greater proportion of homosexuals than heterosexuals using GHB to enhance sex (p < 0.05). There were no other significant differences with respect to participant sexuality.