Comparison of two methods in deriving a short version of oral health-related quality of life measure

Saub, R. and Locker, D. and Allison, P. (2008) Comparison of two methods in deriving a short version of oral health-related quality of life measure. Community Dental Health, 25 (3). pp. 132-136. ISSN 0265-539X

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Abstract

Objective To compare two methods of developing short forms of the Malaysian Oral Health Impact Profile (OHIP-M) measure. Method Cross sectional data obtained using the long form of the OHIP-M was used to produce two types of OHIP-M short forms, derived using two different methods; namely regression and item frequency methods. The short version derived using a regression method is known as Reg-SOHIP(M) and that derived using a frequency method is known as Freq-SOHIP(M). Both short forms contained 14 items. These two forms were then compared in tenus of their content, scores, reliability, validity and the ability to distinguish between groups. Results Out of 14 items, only four were in common. The form derived from the frequency method contained more high prevalence items and higher scores than the form derived from the regression method. Both methods produced a reliable and valid measure. However, the frequency method produced a measure, which was slightly better in terms of distinguishing between groups. Conclusion Regardless of the method used to produce the measures, both forms performed equally well when tested for their cross-sectional psychometric properties.

Item Type: Article
Additional Information: ISI Document Delivery No.: 350UF Times Cited: 0 Cited Reference Count: 10 Cited References: Saub R, 2007, COMMUNITY DENT HLTH, V24, P166 Saub R, 2005, COMMUNITY DENT ORAL, V33, P378, DOI 10.1111/j.1600-0528.2005.00242.x SAUB R, 2004, THESIS U TORONTO CAN Wong MCM, 2002, COMMUNITY DENT ORAL, V30, P423, DOI 10.1034/j.1600-0528.2002.00013.x Locker D, 2002, J PUBLIC HEALTH DENT, V62, P13, DOI 10.1111/j.1752-7325.2002.tb03415.x Slade GD, 1997, COMMUNITY DENT ORAL, V25, P284, DOI 10.1111/j.1600-0528.1997.tb00941.x Coste J, 1997, J CLIN EPIDEMIOL, V50, P247, DOI 10.1016/S0895-4356(96)00363-0 Juniper EF, 1997, J CLIN EPIDEMIOL, V50, P233, DOI 10.1016/S0895-4356(96)00377-0 Allen P F, 1997, Community Dent Health, V14, P133 GUYATT GH, 1986, CAN MED ASSOC J, V134, P889 Saub, R. Locker, D. Allison, P. F0369/2001cUniversity of Malaya; University of Toronto This study was supported by Vot F: Grant no: F0369/2001c, University of Malaya, and partial fellowship award, University of Toronto. F d i world dental press ltd Lowestoft
Uncontrolled Keywords: Oral health-related quality of life psychometric methods reliability shortened version validity impact profile ohip validation derivation
Subjects: R Medicine > RK Dentistry
Divisions: Faculty of Dentistry > Dept of Community Dentistry
Depositing User: Mr Ahmad Azwan Azman
Date Deposited: 06 Jul 2012 07:36
Last Modified: 06 Jul 2012 07:36
URI: http://eprints.um.edu.my/id/eprint/3420

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