Number of patients needed to detect effect sizes in comparative outcome studies, and actual mean number and range of patients included in comparative trials.

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Presentation transcript:

Number of patients needed to detect effect sizes in comparative outcome studies, and actual mean number and range of patients included in comparative trials of three psychotherapies for adult depression (CBT, interpersonal psychotherapy (IPT) and non-directive counselling). Number of patients needed to detect effect sizes in comparative outcome studies, and actual mean number and range of patients included in comparative trials of three psychotherapies for adult depression (CBT, interpersonal psychotherapy (IPT) and non-directive counselling). Pim Cuijpers Evid Based Mental Health 2016;19:39-42 Copyright © by the BMJ Publishing Group Ltd, Royal College of Psychiatrists & British Psychological Society. All rights reserved.