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Table 2 Changes in impulsive acts (suicidality and self-harm)

From: A randomised controlled trial of mentalization-based treatment versus structured clinical management for patients with comorbid borderline personality disorder and antisocial personality disorder

  Patients without severe clinical events Patients who presented suicide attempts Number of suicide attempts
n/N(%) n/N(%) Unadjusted observed mean (SD)
MBT SCM χ 2 MBT SCM χ 2 MBT (n = 21) SCM (n = 19) t
Baseline 0/21 0.00 % 0/19 0.00 %   19/21 90.48 % 15/19 78.95 % 1.04 1.38 (1.07) 1.32 (0.95) -0.20
6 months 2/21 9.52 % 1/19 5.26 % 0.26 11/21 52.38 % 11/19 57.89 % 0.12 0.57 (0.60) 0.89 (0.99) 1.26
12 months 6/21 28.57 % 2/19 10.53 % 2.03 8/21 38.10 % 10/19 52.63 % 0.85 0.43 (0.60) 0.79 (1.03) 1.37
18 months 13/21 61.90 % 4/19 21.05 % 6.81** 0/21 0.00 % 4/19 21.05 % 4.91* 0.00 (0.00) 0.37 (0.83) 2.04*
  Modelled odds ratios (95 % CI) a Modelled odd ratios (95 % CI) a Adjusted model coefficients (95 % CI)b
Model: Wald χ2 12.48** (df = 3) 23.67*** (df = 3) 36.29***
Linear change (both groups) 8.42* (1.18, 60.15) 0.20** (0.08, 0.51) 0.70** (0.55, 0.88)
Differential linear change (MBT) 2.83 (0.32, 24.79) 0.34 (0.10, 1.16) 0.61* (0.41, 0.91)
Group differences at 18 months 61.45* (1.17, 60.15) 0.09 (0.01, 1.35) 0.25** (0.09, 0.71)
  Patients who self-harmed Number of self-harm episodes Number of hospital admissions
  n/N(%) Unadjusted observed mean (SD) Unadjusted observed means (SD)
  MBT SCM χ 2 MBT (n = 21) SCM (n = 19) t MBT (n = 21) SCM (n = 19) t
Baseline 16/21 76.19 % 14/19 73.68 % 0.03 5.90 (6.69) 3.79 (3.61) -1.23 0.57 (0.60) 0.32 (0.58) -1.37
6 months 17/21 80.95 % 17/19 89.47 % 0.57 3.14 (3.02) 3.11 (3.57) -0.04 0.24 (0.44) 0.21 (0.42) -0.20
12 months 10/21 47.62 % 15/19 78.95 % 4.18* 2.14 (2.87) 2.42 (2.39) 0.37 0.10 (0.30) 0.32 (0.75) 1.24
18 months 8/21 38.10 % 13/19 68.42 % 3.68 0.62 (0.97) 2.63 (3.65) 2.43* 0.00 (0.00) 0.16 (0.37) 1.93*
  Modelled odds ratios (95 % CI)a Adjusted model coefficients (95 % CI)b Adjusted model coefficients (95 % CI) b
Model: Wald χ2 13.34** (df = 3) 98.73*** (df = 4) 17.38** (df = 4)
Linear change (both groups) 0.72 (0.35, 1.49) -0.12 (-0.27, 0.35) 0.89 (0.46, 1.74)
Differential linear change (MBT) 0.30* (0.10, 0.91) -0.29** (-0.50, -0.08) 0.28 (0.06, 1.27)
Group differences at 18 months 0.03* (0.01, 0.63) -0.66*** (-0.98, -0.34) 0.06* (0.00, 0.81)
  1. MBT Mentalization-Based Treatment, SCM Structured Clinical Management, t t-test for independent samples, χ2 chi-squared, CI confidence interval; df, degrees of freedom
  2. *p < 0.05; **p < 0.01; ***p < 0.001
  3. amixed-effects logistic regression with random intercept
  4. bmixed-effects Poisson regression with random intercept