An Examination of the Food Allergy Quality of Life Questionnaire Performance in a Countrywide American Sample of Children: Cross-Cultural Differences in Age and Impact in the United States and Europe

doi:10.1016/j.jaip.2016.09.049

Comparative Study

. 2017 Mar-Apr;5(2):363-368.e2.

doi: 10.1016/j.jaip.2016.09.049. Epub 2016 Dec 22.

An Examination of the Food Allergy Quality of Life Questionnaire Performance in a Countrywide American Sample of Children: Cross-Cultural Differences in Age and Impact in the United States and Europe

Audrey DunnGalvin¹, Elizabeth Koman², Elizabeth Raver², Hayley Frome², Melissa Adams², Aisleen Keena³, Jonathan O'B Hourihane⁴, Patricia Leahy Gallagher⁵, Bertine Flokstra-de Blok⁶, Anthony Dubois⁷, Katarzyna Pyrz³, Cartsen Bindslev-Jensen⁸, Anette Stensgaard⁸, Robert Boyle⁹, Bea Vickers⁹, Jared Smith⁹, Umasunthar Thisanayagam⁹, Matthew Greenhawt¹⁰

Affiliations

¹ School of Capella University, School of Social and Behavioral Sciences, Minneapolis, Minn; Applied Psychology, University College Cork, Cork, Ireland. Electronic address: [email protected].
² School of Capella University, School of Social and Behavioral Sciences, Minneapolis, Minn.
³ Applied Psychology, University College Cork, Cork, Ireland.
⁴ Department of Paediatrics and Child Health, Cork University Hospital, University College Cork, Cork, Ireland.
⁵ Applied Psychology, University College Cork, Cork, Ireland; Department of Paediatrics and Child Health, Cork University Hospital, University College Cork, Cork, Ireland.
⁶ Department of Pediatric Pulmonology and Pediatric Allergy, University Medical Center Groningen, University of Groningen, GRIAC Research Institute, Groningen, The Netherlands; Department of General Practice, University of Groningen, University Medical Centre Groningen, GRIAC Research Institute, Groningen, The Netherlands.
⁷ Department of Pediatric Pulmonology and Pediatric Allergy, University Medical Center Groningen, University of Groningen, GRIAC Research Institute, Groningen, The Netherlands.
⁸ Odense Research Center for Anaphylaxis (ORCA), Department of Dermatology and Allergy Centre, Odense University Hospital, Odense, Denmark.
⁹ Faculty of Medicine, Department of Medicine, Imperial College London, St Mary's Campus, London, United Kingdom.
¹⁰ University of Michigan, Food Allergy Centre, Michigan Medical School, Ann Arbor, Mich.

PMID: 28017626
DOI: 10.1016/j.jaip.2016.09.049

Comparative Study

An Examination of the Food Allergy Quality of Life Questionnaire Performance in a Countrywide American Sample of Children: Cross-Cultural Differences in Age and Impact in the United States and Europe

Audrey DunnGalvin et al. J Allergy Clin Immunol Pract. 2017 Mar-Apr.

. 2017 Mar-Apr;5(2):363-368.e2.

doi: 10.1016/j.jaip.2016.09.049. Epub 2016 Dec 22.

Authors

Affiliations

¹ School of Capella University, School of Social and Behavioral Sciences, Minneapolis, Minn; Applied Psychology, University College Cork, Cork, Ireland. Electronic address: [email protected].
² School of Capella University, School of Social and Behavioral Sciences, Minneapolis, Minn.
³ Applied Psychology, University College Cork, Cork, Ireland.
⁴ Department of Paediatrics and Child Health, Cork University Hospital, University College Cork, Cork, Ireland.
⁵ Applied Psychology, University College Cork, Cork, Ireland; Department of Paediatrics and Child Health, Cork University Hospital, University College Cork, Cork, Ireland.
⁶ Department of Pediatric Pulmonology and Pediatric Allergy, University Medical Center Groningen, University of Groningen, GRIAC Research Institute, Groningen, The Netherlands; Department of General Practice, University of Groningen, University Medical Centre Groningen, GRIAC Research Institute, Groningen, The Netherlands.
⁷ Department of Pediatric Pulmonology and Pediatric Allergy, University Medical Center Groningen, University of Groningen, GRIAC Research Institute, Groningen, The Netherlands.
⁸ Odense Research Center for Anaphylaxis (ORCA), Department of Dermatology and Allergy Centre, Odense University Hospital, Odense, Denmark.
⁹ Faculty of Medicine, Department of Medicine, Imperial College London, St Mary's Campus, London, United Kingdom.
¹⁰ University of Michigan, Food Allergy Centre, Michigan Medical School, Ann Arbor, Mich.

PMID: 28017626
DOI: 10.1016/j.jaip.2016.09.049

Erratum in

Correction.
[No authors listed] [No authors listed] J Allergy Clin Immunol Pract. 2017 May-Jun;5(3):875. doi: 10.1016/j.jaip.2017.04.007. J Allergy Clin Immunol Pract. 2017. PMID: 28483327 No abstract available.

Abstract

Background: It is important to ensure that tools are valid and reliable in the context in which they are used. The development of age and country norms is part of this process.

Objectives: The primary aim of the present study was to examine the performance of the Food Allergy Quality of Life Questionnaire - Parent Form (FAQLQ-PF) in a countrywide American sample of children with food allergy. The secondary aim was to compare age differences in impact across 9 European countries.

Methods: In a cross-sectional quantitative design, questionnaires were completed by the parents of 1029 food-allergic children (0-12 years). Participants were recruited via support groups and allergists. Data were analyzed by using multivariate analysis of variance and tests for internal consistency and validity. The average score was calculated for each age group in 15 studies in Ireland, Switzerland, the Netherlands, Spain, Portugal, Germany, Italy, Denmark, Israel, and the United Kingdom.

Results: The FAQLQ-PF has high convergent validity (child: r = 0.49, n = 695, P = .01; parent: r = 0.36, n = 696, P = .01) and discriminant validity, parent: t (719) = 4.67, P = .001 (anaphylaxis yes vs no); t (513), P = .009 (single vs multiple allergens). Internal consistency was excellent (r = 0.96). US health-related quality of life was worse than European health-related quality of life, as indicated by higher FAQLQ-PF scores in US samples. Burden increased with age in all populations.

Conclusions: The FAQLQ-PF is appropriate for use in an American population. Findings will form the basis for further work in the development of an online manual with food allergy-normed age scores to allow for precise measurement, interpretation of scores, and comparison across countries and cultures, in clinical and research settings.

Keywords: Food Allergy; Measurement precision; Normed scores; Quality of life; Quality of life Questionnaire.

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An Examination of the Food Allergy Quality of Life Questionnaire Performance in a Countrywide American Sample of Children: Cross-Cultural Differences in Age and Impact in the United States and Europe

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An Examination of the Food Allergy Quality of Life Questionnaire Performance in a Countrywide American Sample of Children: Cross-Cultural Differences in Age and Impact in the United States and Europe

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