Cognitive Behaviour Therapy for Health Anxiety: A Systematic Review and Meta Analysis
Background: Health anxiety (HA) or hypochondriasis, is a psychological problem characterized by a preoccupation with the belief that one is physically unwell. A 2007 Cochrane review (Thomson and Page, 2007) found cognitive behavioural therapy (CBT) to be an effective intervention for individuals with HA. Similar findings were reported in a recent meta analysis (Olatunji et al. 2014) which did not employ a systematic search strategy. The current review aimed to investigate the efficacy of CBT for HA, and to update the existing reviews. Method: A systematic search was conducted following Preferred Reporting Items for Systematic Reviews and Meta Analyses (PRISMA) guidance, including randomized controlled trials that compared CBT with a control condition for people with HA. Five hundred and sixty seven studies were found in the original search, of which 14 were included in the meta analysis. Results: Meta analysis was conducted on 21 comparisons and a large effect size for CBT compared with a control condition was found at post therapy d 1.01 (95% confidence interval 0.77 1.25) as well as at 6 and 12 month follow up. Conclusions: This systematic review and meta analysis provides support for the hypothesis that CBT is an effective intervention for HA when compared with a variety of control conditions, e.g. treatment as usual, waiting list, medication, and other psychological therapies.
Behavioural and Cognitive Psychotherapy