Validity and reliability of the Turkish translation of the Pediatric Asthma Quality of Life Questionnaire.

The aim of this study was to adapt the Pediatric Asthma Quality of Life Questionnaire (PAQLQ) into Turkish and to demonstrate its psychometric performance. After Turkish adaptation of the PAQLQ, this study was conducted on 122 children with asthma aged between 7 and 16 years. A sociodemographic form and PAQLQ and KINDL (a generic health-related quality of life instrument developed for children) questionnaires were applied. Reliability analysis consisted of internal consistency and item-total score correlations, while validity was tested by construct validity. Cronbach alpha scores for Activity (0.80), Symptoms (0.90), and Emotional (0.86) domains were satisfactory. Item versus subscale and total score correlations were significant. Correlations of total PAQLQ score with KINDL total and Physical and Psychological Well-Being domains were significant (r=0.33, 0.45 and 0.31 respectively, p<0.05 for all). Exploratory factor analysis revealed that 78.3% of the items were replaced in their original domain. This Turkish version of PAQLQ is a valid and reliable disease-specific health-related quality of life questionnaire.