title: Temporal mood changes associated with different levels of adolescent drinking: using mobile phones and experience sampling methods to explore motivations for adolescent alcohol use.
abstract: OBJECTIVE
  Alcohol use during adolescence is associated with the onset of alcohol use disorders, mental health disorders, substance abuse as well as socially and physically damaging behaviours, the effects of which last well into adulthood. Nevertheless, alcohol use remains prevalent in this population. Understanding motivations behind adolescent alcohol consumption may help in developing more appropriate and effective interventions. This study aims to increase this understanding by exploring the temporal relationship between mood and different levels of alcohol intake in a sample of young people.
  
  
  METHODS
  Forty-one secondary school students used a purpose-designed mobile phone application to monitor their daily mood and alcohol use for 20 random days within a 31 day period. Generalised estimating equations were used to examine the relationship between differing levels of alcohol consumption (light, intermediate and heavy) and positive and negative mood three days before and after drinking episodes.
  
  
  RESULTS
  While there was no relationship between light and heavy drinking and positive mood, there was an increase in positive mood before and after the drinking event for those that drank intermediate amounts. No statistically significant relationships were found between negative mood and any of the three drinking categories.
  
  
  CONCLUSIONS
  Adolescents who drank in intermediate amounts on a single drinking occasion experienced an increase in positive mood over the three days leading up to and three days following a drinking event. These findings contribute to an understanding of the motivations that underpin adolescent alcohol use, which may help inform future interventions.
authors: Murdoch Childrens' Research Institute, Royal Children's Hospital, Melbourne, Australia. alexander.crooke@mcri.edu.au
authors: Alexander H D
authors: AH
authors: Crooke
authors: Sophie C
authors: SC
authors: Reid
authors: Sylvia D
authors: SD
authors: Kauer
authors: Dean P
authors: DP
authors: McKenzie
authors: Stephen J C
authors: SJ
authors: Hearps
authors: Angela S
authors: AS
authors: Khor
authors: Andrew B
authors: AB
authors: Forbes
mesh_terms: D000293:Adolescent; D000294:Adolescent Behavior / Q000502:physiology / Q000523:psychology*; D000339:Affect / Q000502:physiology; D000428:Alcohol Drinking / Q000453:epidemiology / Q000523:psychology*; D040421:Cell Phone / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D008297:Male; D008499:Medical Records; D009042:Motivation / Q000502:physiology; D012959:Socioeconomic Factors; D014739:Victoria / Q000453:epidemiology