Table 3 Analysis of threshold effect on the NSSI.

From: The role of difficulties in emotion regulation on non-suicidal self-injury and suicide attempts: a cross-sectional study of Chinese adolescents

Models

β

95% CI

p

Model 1

 Single linear regression coefficient

0.254

(0.210, 0.299)

< 0.001

Model 2

 Turning point (K)

87

  

 < K (a)

− 0.006

(− 0.108, 0.094)

0.090

 ≥ K (b)

0.353

(0.297, 0.409)

< 0.001

 Difference in effects between coefficients b and a

0.359

(0.234, 0.485)

< 0.001

 Log-likelihood ratio test

  

< 0.001

  1. A 2-tailed P value of log-likelihood ratio test.
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