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The German version of the Child Perceptions Questionnaire (CPQ-G11-14): translation process, reliability, and validity in the general population

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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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Acknowledgements

The study was supported by GABA International. The authors are grateful to Ms. Annett Schrock (University of Leipzig) for her help with data management and analysis.

Conflict of interest

The authors declare that they have no conflict of interest.

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Authors and Affiliations

  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

    Katrin Bekes

  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

    Mike T. John

  3. Office of Health, Office of Dentistry, County Ludwigslust, Garnisonsstr. 1, 19288, Ludwigslust, Germany

    Rona Zyriax

  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

    Hans-Günter Schaller

  5. Department of Pediatric Dentistry, University of Leipzig, Nuernberger Strasse 57, 04103, Leipzig, Germany

    Christian Hirsch

Authors
  1. Katrin Bekes
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  2. Mike T. John
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  3. Rona Zyriax
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  4. Hans-Günter Schaller
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  5. Christian Hirsch
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Correspondence to Katrin Bekes.

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Bekes, K., John, M.T., Zyriax, R. et al. The German version of the Child Perceptions Questionnaire (CPQ-G11-14): translation process, reliability, and validity in the general population. Clin Oral Invest 16, 165–171 (2012). https://doi.org/10.1007/s00784-010-0496-5

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  • DOI: https://doi.org/10.1007/s00784-010-0496-5

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