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ABSTRACT FROM: Leichsenring F, Luyten P, Hilsenroth M, et al. Psychodynamic therapy meets evidence-based medicine: a systematic review using updated criteria. Lancet Psychiatry 2015;2:648–60.
What is already known on this topic
Psychodynamic therapy (PDT) is widely practiced, but the empirical evidence for it is unclear.1 As relatively few well-controlled studies exist, some authors resort to meta-analyses that include numerous poorly controlled and underpowered clinical trials in order to support their claim that PDT is efficacious.2
Methods of the study
After reviewing the distinction between superiority, non-inferiority and equivalency trials, Leichsenring and colleagues conducted a traditional literature search, which identified 64 randomised controlled trials (RCTs) examining the efficacy of PDT in common mental health disorders. The authors then proceeded to provide their own interpretation of the literature by concluding that PDT is as effective as cognitive–behavioural therapy (CBT). However, this conclusion is unjustified given the poor or unknown quality of the studies included in this review.
What does this paper add
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