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. 1. School of Capella University, School of Social and Behavioral Sciences, Minneapolis, Minn; Applied Psychology, University College Cork, Cork, Ireland. Electronic address: a.dunngalvin@ucc.ie. 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.
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.
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-allergicchildren (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.
Authors: Gayatri B Patel; Erinn S Kellner; Elisabeth Clayton; Krishan D Chhiba; Omolola Alakija; Paul J Bryce; Joshua B Wechsler; Anne Marie Singh Journal: Ann Allergy Asthma Immunol Date: 2021-03-19 Impact factor: 6.248
Authors: Thu T K Le; Thuy T B Tran; Huong T M Ho; An T L Vu; Emma McBryde; Andreas L Lopata Journal: World Allergy Organ J Date: 2020-03-05 Impact factor: 4.084
Authors: Montserrat Fernandez-Rivas; Andrea Vereda; Brian P Vickery; Vibha Sharma; Caroline Nilsson; Antonella Muraro; Jonathan O'B Hourihane; Audrey DunnGalvin; George du Toit; Katharina Blumchen; Kirsten Beyer; Alex Smith; Robert Ryan; Daniel C Adelman; Stacie M Jones Journal: Allergy Date: 2021-09-24 Impact factor: 14.710