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Table 2 Median, range, descriptive means ( M d ) and standard deviations ( SD ) for pair-wise comparisons t0–t3

From: Effectiveness of dialectic behavioral therapy in routine outpatient care: the Berlin Borderline Study

  t0 t3   Time effect
  Median Range Median Range n(pairs)   Wilcoxon U p Effect sized
Number of suicide attempts .00 0-2 .00 0-1 42    1.000a  
NSSI 5.17 0-901 1.00 0-174 42   -3.03 .002 0.33
  M d SD M d SD n (pairs) t df p Effect size d
Inpatient treatment          
      Number of inpatient stays 1.13 1.41 0.32 0.89 47 3.85 46 <.001 0.56
      Duration (days) 51.3 74.2 6.8 19.9 47 4.15 46 <.001 0.61
Number of DSM-IV TR BPD criteria met 6.4 1.2 3.2 1.9 31 8.85 30 <.001 1.59
  1. Note. Effect sizes (Cohen’s d) are based on pair-wise descriptive statistics t0-t3 (p-values pair-wise Wilcoxon- and t-tests).
  2. Number of suicide attempts, non-suicidal self-injury, number and days of inpatient treatment stays 12 months prior t0 is compared to 12 months prior t3 NSSI.
  3. aMcNemar-Test because of dichotomous variables (suicide attempt yes/no).