Few randomised controlled trials (RCTs) have shown decreases in suicide.To identify interventions for preventing suicide.We searched EMBASE and Medline from inception until 31 December 2015. We included RCTs comparing prevention strategies with control. We pooled odds ratios (ORs) for suicide using the Peto method.Among 8647 citations, 72 RCTs and 6 pooled analyses met inclusion criteria. Three RCTs ( = 2028) found that the World Health Organization (WHO) brief intervention and contact (BIC) was associated with significantly lower odds of suicide (OR = 0.20, 95% CI 0.09-0.42). Six RCTs ( = 1040) of cognitive-behavioural therapy (CBT) for suicide prevention and six RCTs of lithium ( = 619) yielded non-significant findings (OR = 0.34, 95% CI 0.12-1.03 and OR = 0.23, 95% CI 0.05-1.02, respectively).The WHO BIC is a promising suicide prevention strategy. No other intervention showed a statistically significant effect in reducing suicide.
To improve methods of estimating use of evidence-based psychotherapy for posttraumatic stress disorder in the Veteran's health administration, we evaluated administrative data and note text for patients newly enrolling in six VHA outpatient PTSD clinics in New England during the 2010 fiscal year (n = 1,924). Using natural language processing, we developed machine learning algorithms that mimic human raters in classifying note text. We met our targets for algorithm performance as measured by precision, recall, and F-measure. We found that 6.3 % of our study population received at least one session of evidence-based psychotherapy during the initial 6 months of treatment. Evidence-based psychotherapies appear to be infrequently utilized in VHA outpatient PTSD clinics in New England. Our method could support efforts to improve use of these treatments.
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