title: Using the work limitations questionnaire in patients with a chronic condition in the Netherlands.
abstract: OBJECTIVE
  To examine the intelligibility and psychometric properties of the modified Dutch language version of the Work Limitations Questionnaire (WLQ) (WLQ-mdlv).
  
  
  METHODS
  Employed patients with a physical chronic condition completed the WLQ-mdlv, the Work Ability Index, and the 36-item short form health survey. Intelligibility, internal consistency, test-retest reliability, and external construct validity of the WLQ-mdlv were assessed.
  
  
  RESULTS
  In 125 patients, the WLQ-mdlv showed improved intelligibility for a Dutch population. With Cronbach α coefficients more than .80, squared weighted κ of 0.63 or more (individual items), intraclass correlation coefficients of 0.83 or more (WLQ scales), a minimal detectable change of four points (WLQ index), and negative correlations with the Work Ability Index and related 36-item short form health survey scales reliability and external construct validity of the WLQ-mdlv were confirmed.
  
  
  CONCLUSIONS
  The WLQ-mdlv is an intelligible, reliable, and valid instrument for evaluating work limitations in employees with a chronic condition in the Netherlands.
authors.affiliation: Centre of Expertise Innovations in Care, Rotterdam University of Applied Sciences, Rotterdam, the Netherlands. J.A.C.Verhoef@hr.nl
authors.forename: Joan A C
authors.initials: JA
authors.lastname: Verhoef
authors.forename: Harald S
authors.initials: HS
authors.lastname: Miedema
authors.forename: Inge
authors.initials: I
authors.lastname: Bramsen
authors.forename: Marij E
authors.initials: ME
authors.lastname: Roebroeck
mesh_terms: D000328:Adult; D002908:Chronic Disease; D005260:Female; D006306:Health Surveys / Q000379:methods; D006801:Humans; D008297:Male; D008875:Middle Aged; D009426:Netherlands; D009784:Occupational Diseases / Q000175:diagnosis / Q000503:physiopathology*; D011788:Quality of Life; D015203:Reproducibility of Results; D011795:Surveys and Questionnaires / Q000592:standards*; D014938:Work Capacity Evaluation