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Table 3 C-SSRS items, intensity score and total score as predictors of non-fatal and fatal suicide attempt during six month follow-up among adult patients presenting at psychiatric emergency services in connection with an episode of self-harm in a Swedish multicentre study 2012–2016

From: Short term risk of non-fatal and fatal suicidal behaviours: the predictive validity of the Columbia-Suicide Severity Rating Scale in a Swedish adult psychiatric population with a recent episode of self-harm

Item N with score (n with outcome) Actual attempts, non-fatal and fatal, during 6 month follow-up; unadjusted Actual attempts, non-fatal and fatal, during 6 month follow-up; adjusted modelsa
OR (95% CI) p C&S R2 N’s R2 OR (95% CI) p C&S R2 N’s R2
Most severe ideation 801(165) 1.2 (1.001–1.4) 0.048 0.006 0.009 1.2 (0.9–1.4) 0.06 0.051 0.079
SI Intensity score 800 (165) 1.1 (1.04–1.1) < 0.001 0.020 0.034 1.07 (1.03–1.1) 0.001 0.059 0.093
SI Frequency 798 (165) 1.3 (1.1–1.4) < 0.001 0.020 0.031 1.2 (1.1–1.4) 0.002 0.057 0.089
SI Duration 798 (165) 1.2 (1.1–1.4) < 0.001 0.017 0.026 1.2 (1.03–1.3) 0.01 0.053 0.083
SI Controllability 796 (164) 1.2 (1.1–1.3) 0.002 0.013 0.020 1.1 (1.01–1.3) 0.03 0.052 0.081
SI Deterrents 796 (164) 1.1 (0.9–1.2) 0.05 0.005 0.008 1.1 (1.03–1.3) 0.02 0.054 0.084
SI Reasons 794 (162) 1.1 (0.9–1.3) 0.2 0.002 0.003 1.1 (0.9–1.3) 0.3 0.046 0.073
C-SSRS total score 802 (165) 1.08 (1.05–1.1) < 0.001 0.033 0.052 1.08 (1.04–1.1) < 0.001 0.049 0.077
  1. aAdjusted for age, sex, suicide attempt prior to index episode; C-SSRS total score adjusted for age and sex only
  2. C-SSRS Columbia-Suicide Severity Rating Scale, SI Suicidal ideation, OR Odds ratio, CI Confidence interval, C&S Cox & Snell, N’s Nagelkerke’s