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

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.

Validity and reliability of the Arabic short version of the child oral health-related quality of life questionnaire [CPQ 11–14] in Medina, Saudi Arabia

“…These results (ρ = 0.37 and 0.40 respectively) were similar to other studies (ρ = 0.38 and 0.39) (14) and (ρ = 0.35 and 0.32 respectively) (13). However, the validity scores were lower compared with studies evaluating oral health QoL in adults.…”

“…However, the Cronbach alpha coefficient in the current study (0.82) was high, as a reliability score greater than 0.5 is considered acceptable (20). This was similar to other studies (13,21), in which Cronbach alpha ranged between 0.81 and 0.91. This indicated that the short version of the Arabic questionnaire demonstrated good reliability scores for the total and subscale scores.…”

“…There was no significant association between caries status and total and subscale scores, and this was also reported by other studies (11,13,14). This could be due to the fact that QoL is influenced by many factors such as the personality, culture, environmental surroundings and others, as discussed by O'Connor (15).…”

“…The COH QoL quantifies the effects that oral and orofacial conditions may have on the well-being of 6-14-year-olds and their families. One of its components, the Child Perceptions Questionnaire for children aged 11-14 years (CPQ [11][12][13][14], has been used extensively throughout the world including Saudi Arabia (2,(4)(5)(6). It consists of 37 items divided into 4 domains and contains an additional 2 questions related to the individual's overall oral health, which act as a validity check.…”

Effects of method of administration on oral health-related quality of life assessment using the Child Perceptions Questionnaire (CPQ-G11–14)

“…For children aged 11 to 14 years, the Child Perceptions Questionnaire (CPQ11- 14) is one of the most sophisticated and most widely used instruments [2]. It has been cross-culturally adapted and administered in studies performed in different countries [3].…”