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Table 2 Outcomes of MBT. Linear mixed model (0, 6, 12 and 18 months, REML estimation)

From: Symptom, alexithymia and self-image outcomes of Mentalisation-based treatment for borderline personality disorder: a naturalistic study

Measured Variable Baseline (Range of N 72–75) 6 months (Range of N 21) 12 months (Range of N 23–31) 18 months (Range of N 22–24) Regression data  
M (SD) M (SD) M (SD) M (SD) t d
Symptom Questionnaires
 KABOSS-S 86,6 (21,0) 73,1 (27,9) 66,2 (26,0) 54,5 (28,0) 5,10*** 0,79
 SCL-90 GSI 1,83 (0,64) 1,47 (0,57) 1,46 (0,69) 1,26 (0,79) 3,88*** 0,58
Suicidality
 SUAS-S 40,3 (10,9) 35,1 (15,1) 31,0 (14,4) 25,1 (14,9) 5,58*** 0,62
 Alexithymia
 TAS-20 DIF 23,1 (4,84) 22,6 (5,45) 19,2 (6,99) 19,8 (7,03) 3,33** 0,52
 TAS-20 DDF 16,0 (4,66) 14,2 (4,00) 14,8 (4,86) 14,1 (5,44) 2,26* 0,29
 TAS-20 EOT 18,8 (4,97) 16,8 (4,90) 18,4 (5,30) 16,3 (4,85) 2,05* 0,25
Self-image
 SASB Autonomy 28,5 (14,7) 31,0 (16,1) 28,3 (18,2) 34,8 (15,3) 3,00** 0,39
 SASB Self-love 26,6 (14,8) 40,0 (21,1) 36,4 (21,3) 50,9 (21,2) 7,96*** 1,00
 SASB Self-hate 55,5 (16,4) 41,4 (21,2) 45,9 (21,5) 32,2 (22,8) 5,39*** 0,75
 SASB Self-control 41,7 (20,6) 54,8 (19,2) 54,3 (20,7) 57,8 (18,5) 3,73*** 0,54
  1. * = p < .05, ** = p < .01, ***p < .001. M mean, SD standard deviation, t t-value for regression, d Cohen’s d calculated from marginal means. KABOSS-S borderline symptoms, SUAS-S suicidality, SCL-90 general psychiatric symptoms, TAS-20 Alexithymia, DIF “Difficulties Identifying Feelings”, DDF “Difficulties Describing Feelings”, EOT “Externally Oriented Thinking”, SASB Self-image. Self-love is the mean of clusters 2–4; Self-hate the mean of clusters 6–8