Cognitive-behavioural therapy for personal recovery of patients with schizophrenia: A systematic review and meta-analysis

Abstract

Background To date, cognitive-behavioural therapy (CBT) trials have primarily focused on clinical recovery; however, personal recovery is actually the fundamental aspect of the recovery process. The aim of this study was to summarise and synthesise the existing evidence regarding the effectiveness of CBT for personal recovery in patients with schizophrenia. Aim This study aimed to determine the effectiveness of CBT for personal recovery in patients with schizophrenia. Methods A systematic search of the literature in PsycINFO, PubMed, Cochrane (CENTRAL), Embase and Web of Science (SCI) was conducted to identify randomised controlled trials reporting the impact of CBT interventions on personal recovery in patients with schizophrenia. The estimated effect sizes of the main study outcomes were calculated to estimate the magnitude of the treatment effects of CBT on personal recovery. We also evaluated the CBT's effect size at the end-of-treatment and long-term (follow-up) changes in some aspects of personal recovery. Results Twenty-five studies were included in the analysis. The effect of CBT on personal recovery was 2.27 (95% CI 0.10 to 4.45; I 2 =0%; p=0.04) at post-treatment and the long-term effect size was 2.62 (95% CI 0.51 to 4.47; I 2 =0%; p=0.02). During the post-treatment period, the pooled effect size of CBT was 0.01 (95% CI -0.12 to 0.15; I 2 =33.0%; p>0.05) for quality of life (QoL), 0.643 (95% CI 0.056 to 1.130; I 2 =30.8%; p<0.01) for psychological health-related QoL, -1.77 (95% CI -3.29 to -0.25; I 2 =40%; p=0.02) for hopelessness and 1.85 (95% CI 0.69 to 3.01; I 2 =41%; p<0.01) for self-esteem. We also summarised the effects of CBT on QoL (subscale scores not included in the evaluation of the pooled effect size), self-confidence and connectedness, and all results corresponded to positive effects. However, there was insufficient evidence regarding the long-term effects of CBT on personal recovery. Conclusions CBT is an effective therapy with meaningful clinical effect sizes on personal recovery and some aspects of personal recovery of schizophrenia after treatment. However, the effect is relatively immediate and rapidly decreases as time progresses. Therefore, in the future, more studies should focus on the mechanism of CBT for personal recovery and the factors that influence the long-term effects of CBT.