Differential item functioning related to ethnicity in an oral health-related quality of life measure

International Journal of Paediatric Dentistry
Jefferson TraebertDavid Locker

Abstract

To assess whether an oral health-related quality of life (OHRQoL)measure showed differential item functioning (DIF) by ethnicity. A simple random sample of 12- and 13-year-old schoolchildren enrolled in the Taranaki District Health Board's school dental service, New Zealand. Each child (n = 430) completed the Child Perception Questionnaire (CPQ(11-14)) in the dental clinic waiting room, prior to a dental examination. The dataset included age, gender, ethnicity, and deprivation status. The general principle of the analytic plan was that equal scores from each CPQ(11-14) item were expected from both non-Mäori and Mäori groups regardless of their ethnic group. Ordinal logistic regression was performed. The dependent variables were the CPQ(11-14) items. The ethnicity group and each CPQ(11-14) domain score were the independent variables. Non-uniform DIF was assessed through adding an interaction term for each CPQ(11-14) sub-scale. Non-uniform DIF was found in two items, one in the Functional Limitations sub-scale and another in the Social Well-being sub-scale. Uniform DIF was found in one item of the Emotional Well-being sub-scale. Both non-uniform and uniform DIF by ethnicity was found in three of 37 items of the CPQ(11-14) questio...Continue Reading

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Citations

Apr 25, 2014·BMC Oral Health·Fiona GilchristZoe Marshman
Sep 4, 2015·International Urology and Nephrology·Zahra BagheriTania Dehesh
Sep 15, 2011·Value in Health : the Journal of the International Society for Pharmacoeconomics and Outcomes Research·I-Chan HuangElizabeth A Shenkman
May 12, 2016·Quality of Life Research : an International Journal of Quality of Life Aspects of Treatment, Care and Rehabilitation·Blake AngellStephen Jan
Sep 26, 2020·Quality of Life Research : an International Journal of Quality of Life Aspects of Treatment, Care and Rehabilitation·Peter ArrowLisa Jamieson
Aug 2, 2019·African Journal of Primary Health Care & Family Medicine·Yolanda Malele-KolisaTshakane R D Ralephenya
Nov 7, 2017·Translational Neuroscience·Frederic DenisJean-Benoit Hardouin
Oct 3, 2020·Journal of Oral Rehabilitation·Swaha PattanaikSeungwon Chung
Dec 17, 2020·The Cleft Palate-craniofacial Journal : Official Publication of the American Cleft Palate-Craniofacial Association·Peter V FowlerJohn M D Thompson

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