Online, group, low-intensity psychological intervention for adults, children, and parents with food allergy

Abstract

Background: Food allergy (FA) impairs psychological wellbeing because of constant vigilance, planning and preparation, dietary and social restrictions, and fear of accidental ingestion, though psychological interventions are sparse. Objective: To examine online, group, low-intensity psychological interventions for adults, children, young people (CYP), and parents with food allergies. Methods: The randomized controlled trials assessed the feasibility and signal of the efficacy of a psychological intervention for adults, CYP, and parents with FA. Participants were randomized to receive the psychological intervention or treatment as usual. The intervention consisted of two, 3-hour manualized online sessions spaced 1 week apart. All participants completed relevant Food Allergy Quality of Life Questionnaires (FAQLQ) and worry (Penn State Worry Questionnaires), in addition to exploratory outcomes, at baseline, 1 month, and 3 months. Results: A total of 129 participants (n = 44 adults, n = 52 CYP, and n = 33 parents) were recruited and randomized; 95 (74%) (n = 36 adults, n = 35 CYP, and n = 24 parents) were retained at 3 months. Owing to baseline differences, mean change was used for parent and CYP outcomes. The psychological intervention demonstrated large FAQLQ benefits across adults (g = −1.12, 95% CI −0.41 to −1.28), CYP (g = 1.23, 95% CI 0.51-1.95), and parents (g = 1.43, 95% CI 0.54-2.30) compared with controls at 3-months. Conclusion: This study provides encouraging findings regarding the feasibility of online, group, low-intensity psychological interventions, in terms of recruitment and retention as well as a signal of efficacy on FAQLQ. A definitive trial including health economic analysis and FA-specific psychological measures with consideration of best routes to implementation, is warranted. Trial Registration: Clinicaltrials.gov Identifiers: NCT04763889 (adults), NCT04770727 (CYP), and NCT04774796 (parents).