Table 2 Adult food allergy specific questionnaires

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]