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German short forms of the Oral Health Impact Profile
Author(s) -
John Mike T.,
Miglioretti Diana L.,
LeResche Linda,
Koepsell Thomas D.,
Hujoel Philippe,
Micheelis Wolfgang
Publication year - 2006
Publication title -
community dentistry and oral epidemiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.061
H-Index - 101
eISSN - 1600-0528
pISSN - 0301-5661
DOI - 10.1111/j.1600-0528.2006.00279.x
Subject(s) - medicine , german , oral health , dentistry , linguistics , philosophy
– Objectives: We report the development and psychometric evaluation of short forms of the Oral Health Impact Profile German version (OHIP‐G) ‐ an instrument to assess oral health‐related quality of life (OHRQoL). Methods: A five‐item short form was developed using best subset regression in 2050 subjects from a national survey. Two 14‐item versions were derived from English‐language short forms and a 21‐item version from previous factor analytic work. A second sample from the general population ( n = 163) and a sample of clinical patients with temporomandibular disorders (TMD; n = 175) were used to investigate validity and internal consistency. Test‐retest reliability was evaluated in 30 prosthodontic patients before treatment. Responsiveness was assessed in 67 patients treated for their TMD pain. Results: Associations between short form summary scores and self‐report of oral health and four oral disorders in the general population and in TMD patients were interpreted as support for convergent/groups validity. The instruments’ responsiveness (effect measures of 0.55–0.98), test‐retest reliability (intraclass correlation coefficients: 0.72–0.87), and internal consistency (Cronbach's alpha: 0.65–0.92) were sufficient. Conclusions: Sufficient discriminative and evaluative psychometric properties of short forms of the OHIP‐G make the instruments suitable to assess OHRQoL in cross‐sectional as well as longitudinal studies.