Validation of the spanish version of the food allergy quality of life questionnaire– adult form (S-FAQLQ-AF)

Introduction: specific food allergy quality of life questionnaires have been developed within the context of the europrevall project. we aimed to adapt and validate the food allergy quality of life questionnaire-adult form (faqlq-af) in the spanish language. methods: the original english questionnaire was translated and culturally adapted into spanish following world health organization guidelines. the final spanish version of the faqlq-af (s-faqlq-af) was approved by the original authors. consecutive patients (=18 years old) who fulfilled the following criteria were recruited: 1) diagnosis of food allergy defined as immediate allergic symptoms and a positive prick test or ige against the culprit food(s) and 2) physician-assessed ability to complete the questionnaires. patients completed the s-faqlq-af and a spanish version of the sf-12 questionnaire. reliability was assessed 10 to 14 days after completion of the first questionnaire. results: eighty-two consecutive outpatients were recruited and cross-sectional validity was assessed based on the correlation between the s-faqlq-af and the food allergy independent measure (faim) in this population (rho=0.83,p<.0001). the s-faqlq-af showed excellent internal consistency (cronbach a,0.95). s-faqlq-af domains also had excellent internal consistency: a=0.93 for allergen avoidance-dietary restrictions; a=0.83 for emotional impact; a=0.85 for risk of accidental exposure,and a=0.66 for food allergy related health. limited correlation was found between the s-faqlq-af and the sf-12. conclusion: the s-faqlq-af is a valid,short,easy-to-use,and reliable instrument that discriminates between patients with different atopic phenotypes and is suitable for assessing the impact of ige-mediated food allergy on patient quality of life. © 2015 esmon publicidad.