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AIMS: The purpose of this research was to: (i) compare 21st birthday drinking with typical drinking; (ii) assess the prevalence of negative consequences and risk behaviors experienced during the 21st birthday week; and (iii) examine the role of typical drinking and 21st birthday drinking in explaining 21st birthday week negative consequences and risk behaviors. SETTING AND PARTICIPANTS: Participants (n = 306; 50% male) included college students turning 21 at a Midwestern public university in the United States. DESIGN AND MEASUREMENT: Approximately 1 week prior to their 21st birthday, students completed measures of typical past 3-month alcohol consumption via a web-based survey. Following their birthday, students (n = 296; 50% male) completed measures of 21st birthday week drinking as well as negative consequences and risk behaviors. FINDINGS: Findings indicated that students consumed considerably larger amounts of alcohol during the week of their 21st birthdays in comparison to typical weekly consumption. Additionally, students experienced a variety of negative consequences and risk behaviors during the week of their 21st birthday, including hangovers, vomiting and not remembering part of the previous evening. Negative binomial regression results indicated that those most likely to experience more negative consequences and risk behaviors associated with 21st birthday drinking were those who consumed heavy amounts of alcohol the week of their birthday, but who did not typically drink excessively. CONCLUSIONS: Findings underscore the need to develop event-specific prevention approaches for occasions associated with extreme drinking and provide direction for considering who may be at greatest risk for problems associated with celebratory drinking.
Lewis et al. (Fri,) studied this question.