| 1. |
- Bower, Peter, et al.
(författare)
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Influence of initial severity of depression on effectiveness of low intensity interventions : meta-analysis of individual patient data
- 2013
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Ingår i: BMJ (Clinical Research Edition). - : BMJ Publishing Group: BMJ. - 0959-8138 .- 1756-1833. ; 346
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Tidskriftsartikel (refereegranskat)abstract
- Objective To assess how initial severity of depression affects the benefit derived from low intensity interventions for depression.Design Meta-analysis of individual patient data from 16 datasets comparing low intensity interventions with usual care.Setting Primary care and community settings.Participants 2470 patients with depression.Interventions Low intensity interventions for depression (such as guided self help by means of written materials and limited professional support, and internet delivered interventions).Main outcome measures Depression outcomes (measured with the Beck Depression Inventory or Center for Epidemiologic Studies Depression Scale), and the effect of initial depression severity on the effects of low intensity interventions.Results Although patients were referred for low intensity interventions, many had moderate to severe depression at baseline. We found a significant interaction between baseline severity and treatment effect (coefficient −0.1 (95% CI −0.19 to −0.002)), suggesting that patients who are more severely depressed at baseline demonstrate larger treatment effects than those who are less severely depressed. However, the magnitude of the interaction (equivalent to an additional drop of around one point on the Beck Depression Inventory for a one standard deviation increase in initial severity) was small and may not be clinically significant.Conclusions The data suggest that patients with more severe depression at baseline show at least as much clinical benefit from low intensity interventions as less severely depressed patients and could usefully be offered these interventions as part of a stepped care model.
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| 2. |
- Cuijpers, Pim, et al.
(författare)
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Are Psychological and Pharmacologic Interventions Equally Effective in the Treatment of Adult Depressive Disorders? : A Meta-Analysis of Comparative Studies
- 2008
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Ingår i: Journal of Clinical Psychiatry. - 0160-6689 .- 1555-2101. ; 69:11, s. 1675-1685
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Tidskriftsartikel (refereegranskat)abstract
- Objective: A large number of studies suggest that both psychological and pharmacologic therapies are effective in the treatment of mild-to-moderate depressive disorders. Whether both types of intervention are equally effective has not been established definitively. Data Sources: A database was developed through a comprehensive literature search (from 1966 to May 2007) in which 6947 abstracts in PubMed (1244 abstracts), PsycINFO (1736), EMBASE (1911), and the Cochrane Central Register of Controlled Trials (2056) were examined. Abstracts were identified by combining terms indicative of psychological treatment and depression (both MeSH terms and text words). For this database, the primary studies from 22 meta-analyses of psychological treatment for depression were also collected. Study Selection: For the current study, the abstracts of 832 studies were examined. Data Extraction: Thirty randomized trials were included in a meta-analysis that compared the effects of a psychological treatment for 3178 adults with a diagnosed depressive disorder (major depressive disorder, dysthymia, minor depressive disorder) with the effects of a pharmacologic treatment. Data Synthesis: In studies of patients with dysthymia, pharmacotherapy was significantly more effective than psychotherapy (d = -0.28, 95% CI = -0.47 to -0.10). In patients with major depressive disorder, treatments with selective serotonin reuptake inhibitors (SSRIs) were significantly more effective than psychological treatments, while treatment with other antidepressants did not differ significantly. Subgroup and metaregression analyses did not show that pretest severity of depressive symptoms was associated with differential effects of psychological and pharmacologic treatments of major depressive disorder. Dropout rates were smaller in psychological interventions compared with pharmacologic treatments (odds ratio = 0.66, 95% CI = 0.47 to 0.92). Conclusions: Pharmacologic treatments may be more effective than psychological interventions in the treatment of dysthymia. Pharmacologic treatment with SSRIs may also be more effective in the treatment of major depressive disorder, although these differences are small and probably have little meaning from a clinical point of view. We can conclude that both psychological and pharmacologic therapies are effective in the treatment of depressive disorders and that each has its own merits.
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| 3. |
- Cuijpers, Pim, et al.
(författare)
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Does cognitive behaviour therapy have an enduring effect that is superior to keeping patients on continuation pharmacotherapy? A meta-analysis
- 2013
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Ingår i: BMJ Open. - : BMJ Publishing Group: BMJ Open / BMJ Journals. - 2044-6055. ; 3:4, s. 2542-
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Tidskriftsartikel (refereegranskat)abstract
- Objectives Although cognitive behaviour therapy (CBT) and pharmacotherapy are equally effective in the acute treatment of adult depression, it is not known how they compare across the longer term. In this meta-analysis, we compared the effects of acute phase CBT without any subsequent treatment with the effects of pharmacotherapy that either were continued or discontinued across 6-18 months of follow-up. Design We conducted systematic searches in bibliographical databases to identify relevant studies, and conducted a meta-analysis of studies meeting inclusion criteria. Setting Mental healthcare. Participants Patients with depressive disorders. Interventions CBT and pharmacotherapy for depression. Outcome measures Relapse rates at long-term follow-up. Results 9 studies with 506 patients were included. The quality was relatively high. Short-term outcomes of CBT and pharmacotherapy were comparable, although drop out from treatment was significantly lower in CBT. Acute phase CBT was compared with pharmacotherapy discontinuation during follow-up in eight studies. Patients who received acute phase CBT were significantly less likely to relapse than patients who were withdrawn from pharmacotherapy (OR=2.61, 95% CI 1.58 to 4.31, pless than0.001; numbers-needed-to-be-treated, NNT=5). The acute phase CBT was compared with continued pharmacotherapy at follow-up in five studies. There was no significant difference between acute phase CBT and continued pharmacotherapy, although there was a trend (pless than0.1) indicating that patients who received acute phase CBT may be less likely to relapse following acute treatment termination than patients who were continued on pharmacotherapy (OR=1.62, 95% CI 0.97 to 2.72; NNT=10). Conclusions We found that CBT has an enduring effect following termination of the acute treatment. We found no significant difference in relapse after the acute phase CBT versus continuation of pharmacotherapy after remission. Given the small number of studies, this finding should be interpreted with caution pending replication.
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| 4. |
- Cuijpers, Pim, et al.
(författare)
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Interpersonal Psychotherapy for Depression: A Meta-Analysis
- 2011
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Ingår i: AMERICAN JOURNAL OF PSYCHIATRY. - : American Psychiatric Association. - 0002-953X .- 1535-7228. ; 168:6, s. 581-592
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Forskningsöversikt (refereegranskat)abstract
- Objective: Interpersonal psychotherapy (IPT), a structured and time-limited therapy, has been studied in many controlled trials. Numerous practice guidelines have recommended IPT as a treatment of choice for unipolar depressive disorders. The authors conducted a meta-analysis to integrate research on the effects of IPT. Method: The authors searched bibliographical databases for randomized controlled trials comparing IPT with no treatment, usual care, other psychological treatments, and pharmacotherapy as well as studies comparing combination treatment using pharmacotherapy and IPT. Maintenance studies were also included. Results: Thirty-eight studies including 4,356 patients met all inclusion criteria. The overall effect size (Cohens d) of the 16 studies that compared IPT and a control group was 0.63 (95% confidence interval [CI]=0.36 to 0.90), corresponding to a number needed to treat of 2.91. Ten studies comparing IPT and other psychological treatments showed a nonsignificant differential effect size of 0.04 (95% CI=-0.14 to 0.21; number needed to treat=45.45) favoring IPT. Pharmacotherapy (after removal of one outlier) was more effective than IPT (d=-0.19, 95% CI=-0.38 to -0.01; number needed to treat=9.43), and combination treatment was not more effective than IPT alone, although the paucity of studies precluded drawing definite conclusions. Combination maintenance treatment with pharmacotherapy and IPT was more effective in preventing relapse than pharmacotherapy alone (odds ratio=0.37; 95% CI=0.19 to 0.73; number needed to treat=7.63). Conclusions: There is no doubt that IPT efficaciously treats depression, both as an independent treatment and in combination with pharmacotherapy. IPT deserves its place in treatment guidelines as one of the most empirically validated treatments for depression.
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| 5. |
- Cuijpers, Pim, et al.
(författare)
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Is psychotherapy for depression equally effective in younger and older adults? A meta-regression analysis
- 2009
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Ingår i: International psychogeriatrics. - 1041-6102 .- 1741-203X. ; 21:1, s. 16-24
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Forskningsöversikt (refereegranskat)abstract
- Background: It is well established that psychotherapy is effective in the treatment of depression in younger as well as in older adults. Whether these psychotherapies are equally effective in younger and older age groups has not been examined in meta-analytic research. Methods: We conducted a systematic literature search and included 112 studies with 170 comparisons between a psychotherapy and a control group (with a total of 7,845 participants). Twenty studies with 26 comparisons were aimed at older adults. Results: We found no indication that psychotherapies were more or less effective for older adults compared to younger adults. The effect sizes of both groups of comparisons did not differ significantly from each other (older adults: d = 0.74; 95% CI: 0.49 similar to 0.99; younger adults: d = 0.67; 95% CI: 0.58 similar to 0.76). In a multivariate metaregression analysis, in which we controlled for major characteristics of the participants, the interventions and the study designs, no indication of a difference between psychotherapy in younger and older adults was found. Conclusions: There appears to be no significant difference between psychotherapy in younger and older adults, although it is not clear whether this is also true for clinical samples, patients with more severe depression, and the older old.
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| 6. |
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| 7. |
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| 8. |
- Cuijpers, Pim, et al.
(författare)
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Psychological treatment of depression in inpatients: A systematic review and meta-analysis
- 2011
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Ingår i: CLINICAL PSYCHOLOGY REVIEW. - : PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND. - 0272-7358 .- 1873-7811. ; 31:3, s. 353-360
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Forskningsöversikt (refereegranskat)abstract
- Research on psychological treatment of depression in inpatients is not conclusive, with some studies finding clear positive effects and other studies finding no significant benefit compared to usual care or structured pharmacotherapy. The results of a meta-analysis investigating how effective psychological treatment is for depressed inpatients are presented. A systematic search in bibliographical databases resulted in 12 studies with a total of 570 respondents. This set of studies had sufficient statistical power to detect small effect sizes. Psychological treatments had a small (g = 0.29), but statistically significant additional effect on depression compared to usual care and structured pharmacological treatments only. This corresponded with a numbers-needed-to-be-treated of 6.17. Heterogeneity was zero in most analyses, and not significant in all analyses. There was no indication for significant publication bias. Effects were not associated with characteristics of the population, the interventions and the design of the studies. Although the number of studies was small, and the quality of many studies was not optimal, it seems safe to conclude that psychological treatments have a small but robust effect on depression in depressed inpatients. More high-quality research is needed to verify these results.
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| 9. |
- Cuijpers, Pim, et al.
(författare)
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Psychological treatment of depression in primary care : a meta-analysis
- 2009
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Ingår i: British Journal of General Practice. - 0960-1643 .- 1478-5242. ; 59:559, s. 120-127
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Tidskriftsartikel (refereegranskat)abstract
- Background: Although most depressive disorders are treated in primary care and several studies have examined the effects of psychological treatment in primary care, hardly any meta-analytic research has been conducted in which the results of these studies are integrated. Aim: To integrate the results of randomised controlled trials of psychological treatment of depression in adults in primary care, and to compare these results to psychological treatments in other settings. Design of study: A meta-analysis of studies examining the effects of psychological treatments of adult depression in primary care. Setting: Primary care. Method: An existing database of studies on psychological treatments of adult depression that was built on systematic searches in PubMed, PsychINFO, EMBASE, and Dissertation Abstracts International was used. Randomised trials were included in which the effects of psychological treatments on adult primary care patients with depression were compared to a control condition Results: In the 15 included studies, the standardised mean effect size of psychological treatment versus control groups was 0.31 (95% CI = 0.17 to 0.45), which corresponds with a numbers-needed-to-treat (NNT) of 5.75. Studies in which patients were referred by their GP for treatment had significantly higher effect sizes (d = 0.43; NNT = 4.20) than studies in which patients were recruited through systematic screening (d = 0.13, not significantly different from zero; NNT = 13.51). Conclusions: Although the number of studies was relatively low and the quality varied, psychological treatment of depression was found to be effective in primary care, especially when GPs refer patients with depression for treatment.
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| 10. |
- Cuijpers, Pim, et al.
(författare)
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Psychological treatment of depression: Results of a series of meta-analyses
- 2011
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Ingår i: Nordic Journal of Psychiatry. - : Informa Healthcare. - 0803-9488 .- 1502-4725. ; 65:6, s. 354-364
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Tidskriftsartikel (refereegranskat)abstract
- Cuijpers P, Andersson G, Donker T, van Straten A. Psychological treatment of depression: Results of a series of meta-analyses. Nord J Psychiatry 2011;65:354-364. less thanbrgreater than less thanbrgreater thanBackground: In the past few decades, a considerable number of studies have examined the effects of psychotherapies for adult depression. Aim: We described the results of a series of meta-analyses examining what this large body of research has contributed to our knowledge of these treatments of depression. Results: We found that different types of psychotherapy are efficacious in the treatment of adult depression, including cognitive behavior therapy, interpersonal psychotherapy, problem-solving therapy, non-directive supportive therapy and behavioral activation therapy. Differences between types of psychotherapy are small. The efficacy of psychotherapy for mild to moderate depression is about the same as the efficacy of pharmacotherapy, and that combined treatment is more effective than psychotherapy alone and pharmacotherapy alone. Psychotherapy is not only effective in depressed adults in general, but also in older adults, women with postpartum depression, patients with general medical disorders, in inpatients, in primary care patients, patients with chronic depression and in subthreshold depression. Conclusions: We found no evidence showing that psychotherapy is less efficacious in severe depression ( with mean baseline Hamilton Depression Rating Scale scores up to 31, mean Beck Depression Inventory scores up to 35.85 and mean Beck Depression Inventory-II scores up to 36.50), but effects are smaller in chronic depression. We also found that the effects of psychotherapy are probably overestimated because of publication bias and the relatively low quality of many studies in the field.
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