Psychiatry and clinical neurosciences · 2016
Effectiveness of cognitive behavioral therapy in treating bipolar disorder: An updated meta-analysis with randomized controlled trials.
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Ye Bi-Yu, Jiang Ze-Yu, Li Xuan, Cao Bo, Cao Li-Ping, Lin Yin, Xu Gui-Yun, Miao Guo-Dong
Аннотация
AIM: The aim of this updated meta-analysis was to further assess the effectiveness of cognitive behavioral therapy (CBT) in treating bipolar disorder (BD).
METHODS: We carried out a literature search on PubMed, Embase, and the Cochrane Library up to October 2015. We calculated the pooled relative risk of relapse rate and standard mean difference (SMD) of mean change (data at a follow-up time-point - baseline) of the Beck Depression Inventory, Beck Hopelessness Scale, Hamilton Rating Scale for Depression, Young Mania Rating Scale (YMRS) and Mania Rating Scale scores with their 95% confidence interval (95%CI). Subgroup analyses based on follow-up time were performed.
RESULTS: Nine randomized controlled trials with 520 bipolar I or II disorder patients were reanalyzed. Overall analysis showed that CBT did not significantly reduce the relapse rate of BD or improve the level of depression. However, significant efficacy of CBT in improving severity of mania was proved based on the YMRS (SMD = -0.54, 95%CI, -1.03 to -0.06, P = 0.03) but not based on MRS. Subgroup analyses showed that CBT had short-term efficacy in reducing relapse rate of BD (at 6 months' follow-up: relative risk = 0.49, 95%CI: 0.29-0.81, P = 0.006) and improving severity of mania based on YMRS score (post-treatment: SMD = -0.30, 95%CI, -0.59 to -0.01, P = 0.04).
CONCLUSION: Short-term efficacy of CBT in reducing relapse rate of BD and improving the severity of mania was proved. But these effects could be weakened by time. In addition, there was no effect of CBT on level of depression in BD.
METHODS: We carried out a literature search on PubMed, Embase, and the Cochrane Library up to October 2015. We calculated the pooled relative risk of relapse rate and standard mean difference (SMD) of mean change (data at a follow-up time-point - baseline) of the Beck Depression Inventory, Beck Hopelessness Scale, Hamilton Rating Scale for Depression, Young Mania Rating Scale (YMRS) and Mania Rating Scale scores with their 95% confidence interval (95%CI). Subgroup analyses based on follow-up time were performed.
RESULTS: Nine randomized controlled trials with 520 bipolar I or II disorder patients were reanalyzed. Overall analysis showed that CBT did not significantly reduce the relapse rate of BD or improve the level of depression. However, significant efficacy of CBT in improving severity of mania was proved based on the YMRS (SMD = -0.54, 95%CI, -1.03 to -0.06, P = 0.03) but not based on MRS. Subgroup analyses showed that CBT had short-term efficacy in reducing relapse rate of BD (at 6 months' follow-up: relative risk = 0.49, 95%CI: 0.29-0.81, P = 0.006) and improving severity of mania based on YMRS score (post-treatment: SMD = -0.30, 95%CI, -0.59 to -0.01, P = 0.04).
CONCLUSION: Short-term efficacy of CBT in reducing relapse rate of BD and improving the severity of mania was proved. But these effects could be weakened by time. In addition, there was no effect of CBT on level of depression in BD.