title: Is impulsivity in remitted bipolar disorder a stable trait? A meta-analytic review.
abstract: OBJECTIVE
  To review scores on measures of impulsivity in remitted bipolar disorder.
  
  
  METHODS
  We used keywords "impulsivity and bipolar" and "impulsivity and mania" to narrow down our search on Medline, EMBASE and Psychinfo to include those studies that had reported impulsivity scores using validated and reliable assessment measures in remitted bipolar disorder (both I and II). We searched all English language studies from 1990 to October 2012.
  
  
  METHODS
  Nineteen reports met the inclusion criteria and were reviewed by two abstractors independently.
  
  
  METHODS
  We generated weighted mean differences (WMDs) from pooled data using RevManager 5.0 from Cochrane analysis.
  
  
  RESULTS
  The Barratt Impulsivity Scale (BIS) 11 was the instrument most commonly used. Nineteen studies met the inclusion criteria, of which 2 were excluded due to incomplete data. A WMD of 12.8 was observed for BIS 11 total scores, 4.3 on the motor component, 4.1 on the cognitive and 7.6 on the non-planning components of the BIS 11 respectively.
  
  
  CONCLUSIONS
  Impulsivity is significantly higher in remitted bipolar patients than normal controls. Non-planning impulsivity is a key domain affected in bipolar disorder, which may represent a stable trait.
authors.affiliation: North Western Mental Health, Melbourne Health, Melbourne, VIC, Australia. Electronic address: saddichha@gmail.com.
authors.forename: Sahoo
authors.initials: S
authors.lastname: Saddichha
authors.affiliation: Department of Psychiatry, University of British Columbia, Vancouver, Canada.
authors.forename: Christian
authors.initials: C
authors.lastname: Schuetz
mesh_terms: D000374:Aggression / Q000523:psychology; D001714:Bipolar Disorder / Q000175:diagnosis* / Q000523:psychology*; D002605:Character; D005260:Female; D006801:Humans; D007175:Impulsive Behavior; D010552:Personality Assessment