Table 1 Means, standard deviations, and correlations among all study variables (N = 1036)

1 Gender

0–1

–

2 Age

18–25

− 0.09^**

–

3 SSES

1–10

0.05

0.03

–

4 Father’s education level

1–6

− 0.06

0.08^**

0.25^***

–

5 Mother’s education level

1–6

− 0.03

0.06^*

0.19^***

0.68^***

–

6 ACEs

0–25

− 0.12^***

0.15^***

− 0.04

− 0.02

− 0.01

–

7 RNLEs

1–6

− 0.09^**

0.08^*

− 0.11^**

− 0.04

− 0.05

0.44^***

–

8 NSSI-SE

1–5

0.01

− 0.09^**

0.10^**

− 0.01

0.03

− 0.28^***

− 0.39^***

–

9 NSSI

0–68

− 0.05

0.04

− 0.04

0.09^**

0.06^*

0.29^***

0.28^***

− 0.31^***

M ± SD

–

–

19.65 ± 1.23

4.98 ± 1.55

2.74 ± 1.32

2.42 ± 1.26

4.99 ± 4.44

1.97 ± 0.68

4.08 ± 0.80