Table 1 Demographic and clinical characteristics.

From: Augmented pain inhibition and higher integration of pain modulatory brain networks in women with self-injury behavior

 

Mean (SD)

Characteristic

NSSI

Controls

Total

Statistic

P value

Number of participants

41

40

81

  

Demographic characteristics

     

Age, mean (SD), years

22.7 (3.6)

24.0 (4.1)

23.4 (3.9)

t = −1.54

0.128

Educational level, n (%)

     

Elementary school

7 (17.1)

7 (17.5)

14 (17.3)

χ2 = 1.19

0.755

High school

27 (65.9)

24 (60.0)

51 (63.0)

College degree

5 (12.2)

8 (20.0)

13 (16.1)

Other

2 (4.9)

1 (2.5)

3 (3.7)

Clinical characteristics

     

BSL-23, mean (SD)

2.3 (0.9)

0.4 (0.3)

1.3 (1.2)

t = −13.0

<0.001

SRS, mean (SD)

33.7 (8.5)

16.2 (7.9)

25.0 (12.0)

t = −9.7

<0.001

DERS-16, mean (SD)

56.2 (13.3)

27.1 (9.9)

41.8 (18.8)

t = −11.2

<0.001

  1. SD standard deviation, NSSI nonsuicidal self-injury, BSL-23 Borderline Symptom List, SRS Self-Rating Scale (self-criticism), DERS-16 16 Item Version of the Difficulties in Emotion Regulation Scale.
  2. Internal consistency for the questionnaires used in the NSSI group can be found in eTable 4 in Supplementary B.
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