Table 2 Self-harm characteristics and selected covariates in adolescents with repetitive self-harm (N = 103)

 Age of onset (years)

13.1

1.8

13.2

1.9

 Duration (years)

2.8

2.1

2.5

2.9

 Suicide attempts, lifetime

1.8

4.4

0.0

2.0

 NSSI, lifetime

119.7

174.3

50.0

126.0

 Duration before first SA

2.2

1.9

1.6

6.5

 NSSI before first SA

89.7

134.9

34.5

90.0

 Number of methods (first SH episode)

1.1

0.2

1.0

0.0

 Number of methods (lifetime)

2.7

1.6

2.0

2.0

 Borderline Symptoms (BSL-23)

35.15

23.07

31.0

39.0

 Sexual abuse

0.31

0.46

0

1.0

 Physical abuse

0.33

0.47

0

1.0

 Relationship with mother

32.83

10.15

35.0

17.0

 Relationship with father

31.50

10.20

33.0

12.5