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2015
- doi: 10.1016/j.drugalcdep.2014.10.024
- issn: 0376-8716
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Alcohol use Liquor problem Alcohol consumption Consumption of alcoholic beverages Alcoholic beverage consumption Social drinking Alcohol drinking Drinking problem Grain alcohol Drinking alcohol Intoxicants Potable alcoholCiter ce document
N. Bertholet et al., « The alcohol purchase task in young men from the general population. », Serveur académique Lausannois, ID : 10.1016/j.drugalcdep.2014.10.024
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BACKGROUND: The alcohol purchase task (APT), which presents a scenario and asks participants how many drinks they would purchase and consume at different prices, has been used among students and small clinical samples to obtain measures of alcohol demand but not in large, general population samples. METHODS: We administered the APT to a large sample of young men from the general population (Cohort Study on Substance Use Risk Factors). Participants who reported drinking in the past year (n=4790), reported on past 12 months alcohol use, on DSM-5 alcohol use disorder (AUD) criteria and on alcohol related consequences were included. RESULTS: Among the APT's demand parameters, intensity was 8.7 (SD=6.5) indicating that, when drinks are free, participants report a planned consumption of almost 9 drinks. The maximum alcohol expenditure (Omax) was over 35CHF (1CHF=1.1USD) and the demand became elastic (Pmax) at 8.4CHF (SD=5.6). The mean price at which the consumption was suppressed was 15.6CHF (SD=5.4). Exponential equation provided a satisfactory fit to individual responses (mean R(2): 0.8, median: 0.8). Demand intensity was correlated with alcohol use, number of AUD criteria and number of consequences (all r≥0.3, p