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Translation, adaptation and initial validation of Food Allergy Quality of Life Questionnaire: child form in Greek

Zoe Morou, Georgios N. Lyrakos, Nikolaos G. Papadopoulos, Nikolaos Douladiris, Athina Tatsioni, Ioannis D.K. Dimoliatis
  • Zoe Morou
    Department of Hygiene and Epidemiology, University of Ioannina Medical School, Ioannina, Greece
  • Georgios N. Lyrakos
    Second Department of Anesthesiology, University of Athens Medical School, Athens, Greece
  • Nikolaos G. Papadopoulos
    Allergy Department, 2nd Pediatric Clinic, University of Athens, Greece
  • Nikolaos Douladiris
    Allergy Department, 2nd Pediatric Clinic, University of Athens, Greece
  • Athina Tatsioni
    Tufts University School of Medicine, Boston, MA, USA; Department of Internal Medicine, University of Ioannina Medical School, Ioannina, Greece
  • Ioannis D.K. Dimoliatis
    Department of Hygiene and Epidemiology, University of Ioannina Medical School, Ioannina, Greece | idimolia@uoi.gr

Abstract

The aim of the study is to determine the reliability and validity of the Greek version of the Food Allergy Quality of life Questionnaire- Child Form (FAQLQ-CF). After linguistic validation, the Greek FAQLQCF, Food Allergy Independent Measure (FAIM) and Pediatric Quality of Life Inventory (PedsQL™) were used by a physician to interview children diagnosed with food allergy and aged 8-12 via telephone. Cronbach’s alpha was used to evaluate reliability, and factor analysis to assess construct validity. The correlation between FAQLQ-CF and FAIM was moderate (rho=0.509, P<0.001) and internal consistency was strong (Cronbach’s alpha 0.905). FAQLQ-CF discriminated well each question’s contribution to children’s quality of life deterioration (32- 80%), each child’s quality of life (17-89%), children differing in doing things with others (total score 3.55 vs 2.57, difference =0.98 > minimal clinical importance difference = 0.5; P<0.001), but not children differing in reporting anaphylaxis. The total FAQLQ-CF score correlated with the total PedsQL™ score and with the score of one of PedsQL™ subscales, demonstrating convergent validity. Factor analysis uncovered an underlying structure of four factors, explaining 50% of the variance. We can conclude that Greek FAQLQ-CF is a reliable, valid, discriminant tool for interviewing food allergic children aged 8- 12, detecting those in need for immediate care.

Keywords

Child; food hypersensitivity; quality of life; questionnaires; validationuestionnaires, validation

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Submitted: 2014-07-27 12:45:12
Published: 2016-06-23 12:10:29
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Copyright (c) 2016 Zoe Morou, Georgios N. Lyrakos, Nikolaos G. Papadopoulos, Nikolaos Douladiris, Athina Tatsioni, Ioannis D.K. Dimoliatis

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