title: Drinking social norms and drinking behaviours: a multilevel analysis of 137 workgroups in 16 worksites.
abstract: BACKGROUND
  Previous studies on worksite drinking norms showed individually perceived norms were associated with drinking behaviours.
  
  
  OBJECTIVE
  To examine whether restrictive drinking social norms shared by workgroup membership are associated with decreased heavy drinking, frequent drinking and drinking at work at the worker level.
  
  
  METHODS
  The sample included 5338 workers with complete data nested in 137 supervisory workgroups from 16 American worksites. Multilevel models were fitted to examine the association between workgroup drinking norms and heavy drinking, frequent drinking and drinking at work.
  
  
  RESULTS
  Multivariate adjusted models showed participants working in workgroups in the most discouraging drinking norms quartile were 45% less likely to be heavy drinkers, 54% less likely to be frequent drinkers and 69% less likely to drink at work than their counterparts in the most encouraging quartile.
  
  
  CONCLUSIONS
  Strong associations between workgroup level restrictive drinking social norms and drinking outcomes suggest public health efforts at reducing drinking and alcohol-related injuries, illnesses and diseases should target social interventions at worksites.
authors.affiliation: Southwest Center for Occupational and Environmental Health, The University of Texas School of Public Health, Houston, Texas, USA.
authors.forename: Tonatiuh
authors.initials: T
authors.lastname: Barrientos-Gutierrez
authors.forename: David
authors.initials: D
authors.lastname: Gimeno
authors.forename: Thomas W
authors.initials: TW
authors.lastname: Mangione
authors.forename: Ronald B
authors.initials: RB
authors.lastname: Harrist
authors.forename: Benjamin C
authors.initials: BC
authors.lastname: Amick
mesh_terms: D000328:Adult; D000428:Alcohol Drinking / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D010379:Peer Group; D012307:Risk Factors; D012931:Social Environment; D012945:Social Values; D017132:Workplace / Q000523:psychology*