Premium
Psychometric assessment of the short‐form Child Perceptions Questionnaire: an international collaborative study
Author(s) -
Thomson W.M.,
Foster Page L.A.,
Robinson P.G.,
Do L.G.,
Traebert J.,
Mohamed A.R.,
Turton B.J.,
McGrath C.,
Bekes K.,
Hirsch C.,
Carmen AguilarDiaz F.,
Marshman Z.,
Benson P.E.,
Baker S.R.
Publication year - 2016
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/cdoe.12248
Subject(s) - medicine , confirmatory factor analysis , quality of life (healthcare) , oral health , sample (material) , demography , epidemiology , german , clinical psychology , environmental health , family medicine , structural equation modeling , geography , statistics , chemistry , mathematics , nursing , chromatography , archaeology , sociology
Abstract Objective To examine the factor structure and other psychometric characteristics of the most commonly used child oral‐health‐related quality‐of‐life ( OHRQ oL) measure (the 16‐item short‐form CPQ 11‐14 ) in a large number of children ( N = 5804) from different settings and who had a range of caries experience and associated impacts. Methods Secondary data analyses used subnational epidemiological samples of 11‐ to 14‐year‐olds in Australia ( N = 372), New Zealand (three samples: 352, 202, 429), Brunei (423), Cambodia (244), Hong Kong (542), Malaysia (439), Thailand (220, 325), England (88, 374), Germany (1055), Mexico (335) and Brazil (404). Confirmatory factor analysis ( CFA ) was used to examine the factor structure of the CPQ 11‐14 across the combined sample and within four regions (Australia/ NZ , Asia, UK /Europe and Latin America). Item impact and internal reliability analysis were also conducted. Results Caries experience varied, with mean DMFT scores ranging from 0.5 in the Malaysian sample to 3.4 in one New Zealand sample. Even more variation was noted in the proportion reporting only fair or poor oral health; this was highest in the Cambodian and Mexican samples and lowest in the German sample and one New Zealand sample. One in 10 reported that their oral health had a marked impact on their life overall. The CFA across all samples revealed two factors with eigenvalues greater than 1. The first involved all items in the oral symptoms and functional limitations subscales; the second involved all emotional well‐being and social well‐being items. The first was designated the ‘ symptoms/function ’ subscale, and the second was designated the ‘ well‐being ’ subscale. Cronbach's alpha scores were 0.72 and 0.84, respectively. The symptoms/function subscale contained more of the items with greater impact, with the item ‘Food stuck in between your teeth’ having greatest impact; in the well‐being subscale, the ‘Felt shy or embarrassed’ item had the greatest impact. Repeating the analyses by world region gave similar findings. Conclusion The CPQ 11‐14 performed well cross‐sectionally in the largest analysis of the scale in the literature to date, with robust and mostly consistent psychometric characteristics, albeit with two underlying factors (rather than the originally hypothesized four‐factor structure). It appears to be a sound, robust measure which should be useful for research, practice and policy.