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Table 2 Adult food allergy specific questionnaires

From: Quality of life in patients with food allergy

Questionnaire #Items Domains Age Completed by Result Reliability Validity Patients included in development References
Food allergy quality of life questionnaire-adult form (FAQLQ-AF) 29 Allergen avoidance and dietary restrictions; emotional impact; risk of accidental exposure; Food allergy related health ≥18 Adults Discriminated between patients who differ in severity of symptoms (anaphylaxis vs no anaphylaxis), and number of food allergies (>3 food allergies vs < or = 3 food) Internal consistency (test–retest) Internal: correlations interitem. External: face, content, convergent/discriminative, construct Yes Flokstra-de Blok et al., The Netherlands [41]
Food allergy quality of life questionnaire-adult form spanish version (FAQLQ-AF) 29 Allergen avoidance and dietary restrictions; emotional impact; risk of accidental exposure; food allergy related health ≥18 Adults ≥3 foods = greater impact on QoL excellent internal consistency (Cronbach α, 0.95). S-FAQLQ-AF domains also had excellent internal consistency: α = 0.93 for allergen avoidance-dietary restrictions; α = 0.83 for emotional impact; α = 0.85 for risk of accidental exposure, and α = 0.66 for food allergy related health Internal consistency (test–retest Internal: correlations inter-items. External: face, content, convergent/discriminative, construct Yes Antolin-Amerigo et al., Spain [42]
Food allergy quality of life questionnaire-adult form swedish version (FAQLQ-AF) 29 Allergen avoidance and dietary restrictions; emotional impact; risk of accidental exposure; food allergy related health ≥18 Adults O gender differences Allergen avoidance and Dietary Restrictions (AADR) highest score (lowest HRQL) number of food items to avoid did not influence QoL Internal consistency (test–retest Internal: correlations interitem. External: face, content, convergent/discriminative, construct Yes Jansson SA et al., Sweden [59]