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Eur Ann Allergy Clin Immunol. 2016 May;48(3):82-7.

Translation to Portuguese and cultural adaptation of Food Allergy Quality of Life Questionnaire - Parent Form (FAQLQ-PF).

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Instituto & Hospital CUF Porto, Allergy Unit, Porto, Portugal. Hospital CUF Porto Estrada da Circunvalação 14341 4100-180 Porto, Portugal Phone: +351 91 793 22 83 Fax: +351 22 551 3601 E-mail:
Imunoalergologia, Centro Hospitalar São João, E.P.E., Porto, Portugal.
Allergy Department, CUF Descobertas Hospital, Lisbon, Portugal.
Allergy Department, CUF Descobertas Hospital, Lisbon, Portugal. CEDOC, Chronic Diseases Research Center, Immunology, NOVA Medical School / Faculdade de Ciências Médicas, Universidade Nova de Lisboa, Lisbon, Portugal.
University of Groningen, University Medical Center Groningen, Department of General Practice, Groningen, the Netherlands.
Department of Paediatrics and Child Health, University College, Cork, Ireland.


Food allergy is a health problem with significant negative impact in Quality of Life (QoL). We aimed to translate into Portuguese and culturally adapt to our population the Food Allergy Quality of Life Questionnaire - Parent Form (FAQLQ-PF). Cross-cultural translation was performed according to guidelines. Linguistic validation consisted in 3 steps: forward translation, backward translation and comprehensibility testing. A consensual version was obtained and tested in parents of food allergic children by cognitive debriefing. Twelve questionnaires were fulfilled, all completed in ≤ 15 min. No comments, doubts or suggestions were posed, except for 2 parents regarding a question about the number of food their children had to avoid. Two gave special positive feedback about the utility of FAQLQ-PF. Changes have been included after this pre-test in accordance to doubts and suggestions of participants, and the Portuguese version is now able to be used in clinics and research.


Portuguese; cross-cultural adaption; food allergy; quality of life questionnaires; translation

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