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The development and validation of a psychological questionnaire for patients undergoing orthognathic treatment
Author(s) -
Shelton A. T.,
Houghton N. Y.,
Morris D. O.,
Latchford G. L.,
Bekker H. L.,
Munyombwe T.
Publication year - 2015
Publication title -
orthodontics and craniofacial research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.664
H-Index - 55
eISSN - 1601-6343
pISSN - 1601-6335
DOI - 10.1111/ocr.12061
Subject(s) - cronbach's alpha , rasch model , hospital anxiety and depression scale , orthognathic surgery , population , psychosocial , reliability (semiconductor) , medicine , physical therapy , anxiety , psychology , clinical psychology , psychometrics , orthodontics , psychiatry , developmental psychology , power (physics) , physics , environmental health , quantum mechanics
Structured Abstract Objectives To develop a questionnaire to assess the psychosocial aspects which orthognathic patients considered important regarding their dento‐facial deformity. Setting and sample population A multicentre, prospective, questionnaire development and validation study based in the UK . Material and methods Questionnaire development involved item (question) selection through literature review, consultation and feedback from a questionnaire development group and semi‐structured interviews. A ‘final’ questionnaire was tested on a cross‐sectional sample of 110 pre‐operative and 74 post‐operative orthognathic patients and a longitudinal sample of 23 orthognathic patients. Validity was tested using Rasch analysis. Results Reliability for the Hospital Anxiety and Depression Scale ( HADS ) section was unsatisfactory ( ICC = 0.232–0.829, Cronbach alpha = 0.625–0.670), but for the well‐ being ( ICC = 0.857, Cronbach alpha = 0.827–0.895) and expectations ( ICC = 0.861, Cronbach alpha = 0.804–0.882) sections were satisfactory. The well‐being section was the only section found to be valid for the pre‐and post‐operative samples. Responsiveness was satisfactory for the well‐being scale ( p = 0.001). Conclusions A new condition‐specific orthognathic questionnaire has been developed which has been shown to be reliable, valid and responsive for the well‐being scale. The HADS , as tested by Rasch analysis, was found not to be valid for this orthognathic population.