title: Global sleep quality as a moderator of alcohol consumption and consequences in college students.
abstract: The authors examined the relationship between global sleep quality and alcohol risk, including the extent to which global sleep quality moderated the relationship between alcohol use and drinking-related consequences. Global sleep quality was measured using the Pittsburgh Sleep Quality Index (PSQI) and alcohol-related consequences were assessed using the Rutgers Alcohol Problem Index (RAPI). The sample consisted of 261 college students (61.3% female, 58.2% Caucasian) who completed online surveys. Using a four-step hierarchical multiple regression model, global sleep quality was found to predict alcohol consequences, over and above assessed covariates (demographics and weekly drinking). Further, global sleep quality emerged as a strong moderator in the drinking-consequences relationship such that among heavier drinkers, those with poorer global sleep quality experienced significantly greater alcohol-related harm. Campus health education and alcohol interventions may be adapted to address the importance of maintaining a healthy lifestyle, both in terms of healthful sleeping and drinking behaviors, which appear to play a strong synergistic role in alcohol-related risk.
authors.affiliation: Loyola Marymount University, 1 LMU Drive, Suite 4700, Los Angeles, CA 90045, USA. shannon.kenney@lmu.edu
authors.forename: Shannon R
authors.initials: SR
authors.lastname: Kenney
authors.forename: Joseph W
authors.initials: JW
authors.lastname: LaBrie
authors.forename: Justin F
authors.initials: JF
authors.lastname: Hummer
authors.forename: Andy T
authors.initials: AT
authors.lastname: Pham
mesh_terms: D000293:Adolescent; D000328:Adult; D000428:Alcohol Drinking / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D011569:Psychiatric Status Rating Scales; D012044:Regression Analysis; D012309:Risk-Taking; D012890:Sleep; D012893:Sleep Wake Disorders / Q000209:etiology*; D013334:Students / Q000523:psychology*; D014495:Universities / Q000706:statistics & numerical data; D055815:Young Adult