TY - JOUR
T1 - Test-retest reliability of the Food Allergy Quality of Life Questionnaires (FAQLQ) for children, adolescents and adults
AU - Van Der Velde, Jantina L.
AU - Flokstra-De Blok, Bertine M.J.
AU - Vlieg-Boerstra, Berber J.
AU - Oude Elberink, Joanne N.G.
AU - Schouten, Jan P.
AU - Dunngalvin, Audrey
AU - Hourihane, Jonathan O.B.
AU - Duiverman, Eric J.
AU - Dubois, Anthony E.J.
PY - 2009/3
Y1 - 2009/3
N2 - Objective: 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. Methods: 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. Results: 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. Conclusions: 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.
AB - Objective: 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. Methods: 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. Results: 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. Conclusions: 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.
KW - EuroPrevall
KW - Food allergy
KW - Health-Related Quality of Life
KW - Reproducibility
KW - Test-retest reliability
UR - https://www.scopus.com/pages/publications/59849098175
U2 - 10.1007/s11136-008-9434-2
DO - 10.1007/s11136-008-9434-2
M3 - Article
C2 - 19142745
AN - SCOPUS:59849098175
SN - 0962-9343
VL - 18
SP - 245
EP - 251
JO - Quality of Life Research
JF - Quality of Life Research
IS - 2
ER -