title: A modified short version of the oral health impact profile for assessing health-related quality of life in edentulous adults.
abstract: OBJECTIVE
  The aim of this study was to develop a shortened version of the Oral Health Impact Profile (OHIP) appropriate for use in edentulous patients and to evaluate its measurement properties.
  
  
  METHODS
  Data were collected from the Ontario Study of Older Adults and a longitudinal clinical trial of implant-retained prostheses undertaken in Newcastle Dental Hospital, UK. All subjects completed an OHIP at baseline, and UK subjects also completed an OHIP posttreatment. Using an item impact reduction method, a shortened version of the OHIP (called OHIP-EDENT) was derived from both datasets. Discriminant validity and responsiveness properties of this modified version were compared with OHIP-14 and OHIP-49.
  
  
  RESULTS
  Using an item impact method of reducing the 49 OHIP items produced very similar subsets in both Canadian and British populations; the modified version had little overlap with the current short version (OHIP-14). Discriminant validity properties of OHIP-EDENT were similar to OHIP-14 and OHIP-49. Using effect sizes to assess sensitivity to change, OHIP-EDENT exhibited less susceptibility to floor effects than OHIP-14 and appeared to measure change as effectively as OHIP-49.
  
  
  CONCLUSIONS
  The modified shortened version of the OHIP derived in this study has measurement properties comparable with the full 49-item version. This modified shortened version may be more appropriate for use in edentulous patients than the current short version.
authors.affiliation: University Dental School and Hospital, National University of Ireland, Department of Restorative Dentistry, Wilton, Cork, Ireland. f.allen@ucc.ie
authors.forename: Finbarr
authors.initials: F
authors.lastname: Allen
authors.forename: David
authors.initials: D
authors.lastname: Locker
mesh_terms: D000368:Aged; D003753:Dental Health Surveys; D019094:Dental Prosthesis, Implant-Supported / Q000523:psychology*; D003824:Denture, Complete / Q000523:psychology*; D006801:Humans; D009066:Mouth, Edentulous / Q000523:psychology*; D017060:Patient Satisfaction; D011788:Quality of Life; D018434:Sickness Impact Profile; D011795:Surveys and Questionnaires