Therapy competence in delivering a brief cognitive behavioural therapy intervention to reduce maternal anxiety associated with child food allergy

Abstract

Child food allergy is increasingly prevalent, and caring for such children is associated with elevated parental anxiety. We previously carried out a randomized-controlled trial (RCT) of brief cognitive behavioural therapy (CBT) for parental anxiety associated with child food allergy which found that treatment to be effective. This study describes the manualized brief CBT intervention and assesses the acquisition of competence in delivering this therapy. Three healthcare professionals were trained and supervised in the delivery of brief CBT to 98 mothers of food-allergic children. Competency was assessed using the Revised Cognitive Therapy Scale (CTS-R), with ‘competency’ defined as a CTS-R score ≥3. All therapists’ CTS-R scores increased over time. In the first four months, the mean (SD) CTS-R score was 2.31 (0.56), increasing to 3.14 (0.41) in the second four months (p < .001). Overall, 13/19 (68%) of CBT sessions were rated with a CTS-R score ≥3 in the second four months. After eight months, all therapists were performing CBT at a competent level (17 of the 18 sessions or 94%). The therapists participated in a RCT that reduced maternal anxiety (reported elsewhere). We have shown that therapists not previously trained in CBT can be trained in specific interventions and reach competent levels quickly.