title: Work impact of migraine headaches.
abstract: OBJECTIVE
  To estimate work impact of headache among migraineurs.
  
  
  METHODS
  Data were from a U.S. nationwide mailed questionnaire of 193,477 participants in the American Migraine Prevalence and Prevention study. Lost Productive Time (LPT) was the sum of missed hours plus reduced productivity hour equivalents. The cause of LPT was self-reported.
  
  
  RESULTS
  The mean LPT per week was 1.8 hours for headache and 2.8 for all health related causes; 76.5% of the headache-related LPT was explained by reduced performance (ie, presenteeism). The 29% of migraine cases with 11+ headaches-d/mo accounted for 49% of overall LPT; the 19% of those with pain score of 9 to 10 on a 0 to 10 scale accounted for 33% of the overall LPT.
  
  
  CONCLUSIONS
  Individuals with frequent and severe headaches account for a disproportionate share of the headache-related LPT.
authors.affiliation: Geisinger Clinic, Center for Health Research, MC 44-00,100 N. Academy Ave, Danville, PA 17822, USA. wfstewart@geisinger.edu
authors.forename: Walter F
authors.initials: WF
authors.lastname: Stewart
authors.forename: G Craig
authors.initials: GC
authors.lastname: Wood
authors.forename: Hanieh
authors.initials: H
authors.lastname: Razzaghi
authors.forename: Michael L
authors.initials: ML
authors.lastname: Reed
authors.forename: Richard B
authors.initials: RB
authors.lastname: Lipton
mesh_terms: D000328:Adult; D000368:Aged; D017598:Efficiency, Organizational; D004651:Employment; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008881:Migraine Disorders / Q000453:epidemiology / Q000523:psychology*; D011795:Surveys and Questionnaires; D014481:United States / Q000453:epidemiology; D055815:Young Adult