Effectiveness of collaborative care in reducing suicidal ideation: An individual participant data meta-analysis.

Grigoroglou C, van der Feltz-Cornelis C, Hodkinson A, Coventry PA, Zghebi SS, Kontopantelis E, Bower P, Lovell K, Gilbody S, Waheed W, Dickens C, Archer J, Blakemore A, Adler DA, Aragones E, Björkelund C, Bruce ML, Buszewicz M, Carney RM, Cole MG, Davidson KW, Gensichen J, Grote NK, Russo J, Huijbregts K, Huffman JC, Menchetti M, Patel V, Richards DA, Rollman B, Smit A, Zijlstra-Vlasveld MC, Wells KB, Zimmermann T, Unutzer J, Panagioti M. Effectiveness of collaborative care in reducing suicidal ideation: An individual participant data meta-analysis. General hospital psychiatry. 2021 Jul 1; 71:27-35.

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Abstract:

To assess whether CC is more effective at reducing suicidal ideation in people with depression compared with usual care, and whether study and patient factors moderate treatment effects. METHOD: We searched Medline, Embase, PubMed, PsycINFO, CINAHL, CENTRAL from inception to March 2020 for Randomised Controlled Trials (RCTs) that compared the effectiveness of CC with usual care in depressed adults, and reported changes in suicidal ideation at 4 to 6 months post-randomisation. Mixed-effects models accounted for clustering of participants within trials and heterogeneity across trials. This study is registered with PROSPERO, CRD42020201747. RESULTS: We extracted data from 28 RCTs (11,165 patients) of 83 eligible studies. We observed a small significant clinical improvement of CC on suicidal ideation, compared with usual care (SMD, -0.11 [95%CI, -0.15 to -0.08]; I, 0·47% [95%CI 0.04% to 4.90%]). CC interventions with a recognised psychological treatment were associated with small reductions in suicidal ideation (SMD, -0.15 [95%CI -0.19 to -0.11]). CC was more effective for reducing suicidal ideation among patients aged over 65 years (SMD, - 0.18 [95%CI -0.25 to -0.11]). CONCLUSION: Primary care based CC with an embedded psychological intervention is the most effective CC framework for reducing suicidal ideation and older patients may benefit the most.