title: Friends in low places: The impact of locations and companions on 21st birthday drinking.
abstract: The present research examined how various locations and companions were associated with hazardous drinking during 21st birthday celebrations. The sample included 912 college students (57% female) who completed an online survey to examine 21st birthday drinking. Locations included bars, friends' houses, restaurants, outdoor barbecues, homes, parents' homes, and Fraternity/Sorority houses. Companions included friends, family members, casual acquaintances, roommates, significant others, Fraternity/Sorority members, and none (alone). Participants consumed an average of 7.6 drinks and reached an average eBAC of .15 during their 21st birthday celebrations. Locations accounted for 20%/18% of the variance in number of drinks and eBAC, respectively, whereas companions accounted for 23%/20% of the variance. Drinking with romantic partners was associated with less drinking, whereas drinking with Fraternity/Sorority members was associated with more drinking. Stepwise regressions combining locations and companions suggested that, overall, celebrating in a bar setting and with Fraternity and Sorority members were the strongest variables associated with drinking. With the exception of a bar setting, companions were the most important contextual factors associated with 21st birthday drinking.
authors.affiliation: University of New Hampshire, United States. Electronic address: lindsey.rodriguez1@gmail.com.
authors.forename: Lindsey M
authors.initials: LM
authors.lastname: Rodriguez
authors.affiliation: University of Houston, United States.
authors.forename: Chelsie M
authors.initials: CM
authors.lastname: Young
authors.affiliation: University of Houston, United States.
authors.forename: Mary M
authors.initials: MM
authors.lastname: Tomkins
authors.affiliation: Brown University, United States.
authors.forename: Angelo M
authors.initials: AM
authors.lastname: DiBello
authors.affiliation: University of Houston, United States.
authors.forename: Heather
authors.initials: H
authors.lastname: Krieger
authors.affiliation: University of Houston, United States.
authors.forename: Clayton
authors.initials: C
authors.lastname: Neighbors
mesh_terms: D000328:Adult; D000428:Alcohol Drinking / Q000523:psychology*; D000435:Alcoholic Intoxication / Q000523:psychology*; D000846:Anniversaries and Special Events; D000067401:Blood Alcohol Content; D005260:Female; D033062:Friends / Q000523:psychology*; D006801:Humans; D008297:Male; D012747:Sexual Partners / Q000523:psychology; D012931:Social Environment; D013334:Students / Q000523:psychology* / Q000706:statistics & numerical data; D011795:Surveys and Questionnaires; D014495:Universities; D055815:Young Adult
chemical_list: D000067401:Blood Alcohol Content
keywords: 21st birthday; Alcohol use; College students; Context; Event-specific