Test–retest reliability of the Food Allergy Quality of Life Questionnaires (FAQLQ) for children, adolescents and adults
The self-administered Food Allergy Quality of Life Questionnaire-Child Form (FAQLQ-CF), -Teenager Form (FAQLQ-TF) and -Adult Form (FAQLQ-AF) were recently developed within EuroPrevall, a multi-centred study of food allergy in Europe. The primary aim of this study was to evaluate the test-retest reliability of the FAQLQ-CF, -TF and -AF.
One hundred and one Dutch patients (31 children, 34 adolescents and 36 adults) completed the FAQLQ twice with a 10–14 day interval. The intraclass correlation coefficient (ICC), Lin’s concordance correlation coefficient (CCC) and Bland-Altman plots were used to assess test-retest reliability.
Test-retest reliability was excellent with ICCs and CCCs above 0.907, 0.975 and 0.951 for the FAQLQ-CF, -TF and -AF, respectively. Bland-Altman plots showed that the mean differences of the test and re-test were all close to zero for the FAQLQs.
The FAQLQs are reliable over a short time interval. The FAQLQs are not only excellent tools for group comparison studies, but also for monitoring individual patients.
- Test–retest reliability of the Food Allergy Quality of Life Questionnaires (FAQLQ) for children, adolescents and adults
- Open Access
- Available under Open Access This content is freely available online to anyone, anywhere at any time.
Quality of Life Research
Volume 18, Issue 2 , pp 245-251
- Cover Date
- Print ISSN
- Online ISSN
- Springer Netherlands
- Additional Links
- Food allergy
- Health-Related Quality of Life
- Test-retest reliability
- Industry Sectors
- Author Affiliations
- 1. Department of Pediatrics, Division of Pediatric Pulmonology and Pediatric Allergy, University Medical Center Groningen, University of Groningen, Groningen, P.O. Box 30.001, 9700 RB, The Netherlands
- 2. Department of Internal Medicine, Division of Allergy, University Medical Center Groningen, University of Groningen, Groningen, P.O. Box 30.001, 9700 RB, The Netherlands
- 3. Department of Epidemiology, University Medical Center Groningen, University of Groningen, Groningen, P.O. Box 30.001, 9700 RB, The Netherlands
- 4. Department of Paediatrics and Child Health, University College, Cork, Ireland