title: The employee absenteeism costs of inflammatory bowel disease: evidence from US National Survey Data.
abstract: OBJECTIVE
  To estimate indirect costs associated with inflammatory bowel disease (IBD).
  
  
  METHODS
  This was a retrospective study using 1996 to 2006 US Medical Expenditure Panel Survey data. Employed individuals were aged 18 to 64 years. A two-part model estimated the probability of time lost from work because of illness and the annual number of workdays missed.
  
  
  RESULTS
  A total of 71.5% (143/200) and 58.2% (52,257/89,846) of individuals with and without IBD, respectively, missed time from work because of illness (P = 0.0001). Among individuals who missed work, those with IBD missed more workdays annually than those without IBD ((Equation is included in full-text article.)= 13.38, 9.89, respectively; P = 0.044). Incremental per capita cost in annual lost workdays between those with and without IBD was $783. National indirect IBD-related costs were $249 million annually.
  
  
  CONCLUSIONS
  Individuals with IBD have higher probabilities of missing time from work and missing workdays than those without IBD.
authors.affiliation: S2 Statistical Solutions, Inc., Cincinnati, OH, USA.
authors.forename: Candace
authors.initials: C
authors.lastname: Gunnarsson
authors.forename: Jie
authors.initials: J
authors.lastname: Chen
authors.forename: John A
authors.initials: JA
authors.lastname: Rizzo
authors.forename: Joseph A
authors.initials: JA
authors.lastname: Ladapo
authors.forename: Ahmad
authors.initials: A
authors.lastname: Naim
authors.forename: Jennifer H
authors.initials: JH
authors.lastname: Lofland
mesh_terms: D000041:Absenteeism; D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D017281:Cost of Illness; D016208:Databases, Factual; D004651:Employment / Q000191:economics; D005260:Female; D006306:Health Surveys; D006801:Humans; D015212:Inflammatory Bowel Diseases / Q000191:economics* / Q000208:ethnology; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D014481:United States; D055815:Young Adult