The German version of the Child Perceptions Questionnaire (CPQ-G11-14): translation process, reliability, and validity in the general population |
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Authors: | Katrin Bekes Mike T John Rona Zyriax Hans-Günter Schaller Christian Hirsch |
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Institution: | (1) Department of Operative Dentistry and Periodontology, Department of Pediatric Dentistry, Martin-Luther-University Halle-Wittenberg, University School of Dental Medicine, Harz 42a, 06108 Halle, Germany;(2) Department of Diagnostic and Biological Sciences, University of Minnesota, School of Dentistry, 6-320d Moos Tower, 515 Delaware Street SE, Minneapolis, MN 55455, USA;(3) Office of Health, Office of Dentistry, County Ludwigslust, Garnisonsstr. 1, 19288 Ludwigslust, Germany;(4) Department of Operative Dentistry and Periodontology, Department of Pediatric Dentistry, Martin-Luther-University Halle-Wittenberg, University School of Dental Medicine, Harz 42a, 06108 Halle, Germany;(5) Department of Pediatric Dentistry, University of Leipzig, Nuernberger Strasse 57, 04103 Leipzig, Germany |
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Abstract: | The aims of this study were to develop a German version of the Child Perceptions Questionnaire (CPQ11-14, a measure of oral
health-related quality of life in 11–14-year-old children) and to assess the instrument’s reliability and validity in German
children ages 11–14. The English original version of the CPQ11-14 questionnaire was translated into German (CPQ-G11-14) by
a forward–backward translation method. Reliability was investigated in 1,061 subjects aged 11–14 years from a regional sample
(Wernigerode, Saxonia-Anhalt, Germany) who were recruited during the annual dental public health examination. The subjects
completed the CPQ-G11-14 and were clinically examined for the presence of dental caries, plaque accumulation, and malocclusion.
In the reliability assessment, questionnaire summary score test–retest reliability was excellent (intraclass correlation coefficient,
95% confidence interval (CI) = 0.83, 0.73–0.94) and internal consistency was satisfactory (Cronbach’s alpha, lower limit of
CI = 0.87, 0.86). Validity of the CPQ-G11-14 questionnaire was supported by correlations with global ratings of oral health
and overall well-being that were moderate in magnitude and met expectations (r = 0.35; 95% CI, 0.30–0.40 and r = 0.30; 95% CI, 0.24–0.35, respectively). In conclusion, the German version of the CPQ11-14 was reliable and valid in a general
population of 11–14-year-old German children. |
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