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Table 2 Differences between young adults with and without prevailing NSSI

From: The situation of former adolescent self-injurers as young adults: a follow-up study

  Prevailing NSSI Ceased NSSI     
T-tests M (SD) M (SD) df T p d
 Current age 21.1 (2.5) 21.8 (2.7) 50 0.96 0.34 -
 BSI-GSI 1.2 (0.63) 0.70 (0.44) 49 4.02 0.002 1.1
 BDI-II 23.6 (12.4) 11.7 (8.4) 49 3.33 <0.001 1.3
 Duration of NSSI (years) 7.2 (3.5) 3.0 (2.2) 50 5.26 <0.001 1.5
 Age of onset NSSI 13.8 (1.9) 14.0 (1.7) 50 0.42 0.67 -
Mann–Whitney-U-Tests rank-sum rank-sum   Z p d
 Frequency NSSI (lifetime) 775.5 602.5   2.57 0.010 0.77
 Frequency suicide attempts (lifetime) 761.0 617.0   2.43 0.015 0.72
 Frequency suicide attempts (last year) 681.0 697.0   1.62 0.106 -
Chi2-tests N (%) N (%) df Chi2 p d
 Single 16 (69.6) 12 (44.4) 1 3.18 0.093 -
 Employed 19 (82.6) 21 (78.8) 1 0.181 0.736 -
 Highest possible school education (Abitur) 8 (33.3) 10 (35.7) 1 0.032 1.00 -
 Current psychotherapeutic treatment 15 (62.5) 4 (14.3) 1 12.96 <0.001 1.2
 Current psychotropic medication 14 (58.3) 2 (7.1) 1 15.90 <0.001 1.3
 Current Axis 1 disorder (Mini-DIPS) 23 (95.8) 14 (50.0) 1 13.23 <0.001 1.2
 Current Major Depression 18 (75.0) 2 (7.1) 1 25.14 <0.001 1.9
 Boderline personality disorder 12 (50) 12 (50) 1 0.265 0.781 -
  1. Significance level of p < 0.05 Bonferroni-corrected: significance p < 0.003