Harmen Beurmanjer

153 Supplements Population description and results Demographics: 69% male; M=28, SD=5.9, range 18-51 years. Other: Documented history of psychiatric problems in 5 cases (6%). Other substance use: suspected co-ingestion of GHB and alcohol was 39% and GHB with other substances 28%, most commonly amphetamine (17%), ecstasy (14%), and cocaine (5%). Multiple substances in 11 of the 88 cases (12.5%). Demographics: 60% male (83% male among detected GHB and 47% male among not detected GHB); median 25 (range 14-59) years, GHB detected: median 23 (range 17-59) years, not detected GHB: median 23 (range 14-54) years. GHB use: 37% of the cases GHB was detected. Blood GHB-concentrations: M=137, median=137, range 29 to 490 mg/L. Other substance use: In 37% of the cases other substances were detected besides GHB (most commonly): ethanol (41%), MDMA (19%), cannabis (11%), methamphetamines (9%), cocaine (9%), and citalopram (7%). In 70 out of 92 patients (76%), other substances than GHB were detected (most commonly): ethanol (48%), cannabis (18%), MDMA (13%), methamphetamine (7%). Demographics: 60-65% male (total population), 60% male (GHB-mixed), 65% male (GHB only); GHB-mixed: <20 years (27%), 20-24 years (40%), 25-29 years (20%), 30-34 years (9%), and 35+ years (4%). GHB only: <20 years (21%), 20-24 years (42%), 25-29 years (23%), 30-34 years (8%), and 35+ years (6%). GHB ambulance attendances: GHB-related attendances increased by around 4% per month (higher rate than found for heroin overdose attendances). More GHB-related cases were female (35-40%) than heroin cases (26%). GHB-mixed: attended private space (22%), police co-attendance (14%), transport to hospital (92%). GHB only: attended private space (15%), police co-attendance (19%), transport to hospital (90%). GHB cases were more likely to be attended in public, presented in a less unconscious state, and higher rate of transport to hospital than patients who took heroin. Demographics: 64% male; M=22, IQR=20-25 years. GHB intoxications: In 89% GHB intoxicated patients presented in an altered conscious state and 44% profoundly unconscious. Approx. 23% occurred at the last 2 hours of the event. Other substance use: co-ingestion with ecstasy (21%), alcohol (13%), speed (11%). Demographics: 68% male (total population), 70% male (pure GHB group), 68% male (combined GHB group); M=24.7 years; <25 years: 57% (pure GHB group) and 58% (combined GHB group). Other: 80% of the attendees between 0.00-08.00h and 82% during the weekend. GHB use: Only GHB in 24% and GHB combined with other substances in 76% of the cases. Other substance use: most common other drugs were ethanol (64%), MDMA (30%), and cocaine (29%). Demographics: Total population: 81% male; M=32.0, DE=8.4 years. GHB/GBL alone: 83.6% male; M=33.1, DE:7.9 years. GHB/GBL + ethanol: 79.8% male; M=31.5, DE=8.5 years. Other: arrived by ambulance: total population (81.1%), GHB/GBL alone (68.3%), GHB/GBL + ethanol (86.6%).