The efficacy of non-directive supportive therapy for adult depression: A meta-analysis
2012 (English)In: Clinical Psychology Review, ISSN 0272-7358, E-ISSN 1873-7811, Vol. 32, no 4, 280-291 p.Article in journal (Refereed) Published
The effects of non-directive supportive therapy (NDST) for adult depression have been examined in a considerable number of studies, but no meta-analysis of these studies has been conducted. We selected 31 studies on NDST from a comprehensive database of trials, examining psychotherapies for adult depression, and conducted meta-analyses in which NDST was compared with control groups, other psychotherapies and pharmacotherapy. We found that NDST is effective in the treatment of depression in adults (g=0.58; 95% CI: 0.45-0.72). NDST was less effective than other psychological treatments (differential effect size g=-0.20; 95% CI: -0.32 to -0.08, p<0.01), but these differences were no longer present after controlling for researcher allegiance. We estimated that extra-therapeutic factors (those processes operating in waiting-list and care-as-usual controls) were responsible for 33.3% of the overall improvement, non-specific factors (the effects of NDST compared with control groups) for 49.6%, and specific factors (the effects of NDST compared with other therapies) for 17.1%. NDST has a considerable effect on symptoms of depression. Most of the effect of therapy for adult depression is realized by non-specific factors, and our results suggest that the contribution of specific effects is limited at best.
Place, publisher, year, edition, pages
Elsevier, 2012. Vol. 32, no 4, 280-291 p.
IdentifiersURN: urn:nbn:se:liu:diva-76496DOI: 10.1016/j.cpr.2012.01.003ISI: 000303701800006PubMedID: 22466509OAI: oai:DiVA.org:liu-76496DiVA: diva2:514796