Table 5.

Study 2 Multivariate regression models of NSSI frequency (n = 67).

Past-week predictors (ZINB)	B (SE)	IRR	95% CI
Intercept	−2.93 (4.06)	0.05	0.00 – 1.52
CGT Impulsivity*	0.03 (0.01)	1.03	1.01 – 1.06
SRS Self-criticism	0.03 (0.09)	1.03	0.87 – 1.22
Beck Depression Inventory-II	0.04 (0.31)	1.05	0.98 – 1.12
Past-month predictors (ZINB)
Intercept**	−5.27 (1.63)	0.01	0.00 – 0.13
CGT Impulsivity	0.01 (0.01)	1.01	0.99 – 1.03
SRS Self-criticism*	0.11 (0.05)	1.12	1.03 – 1.23
Beck Depression Inventory-II*	0.05 (0.24)	1.05	1.00 – 1.10
Past-year predictors (ZINB)
Intercept	0.31 (1.27)	1.36	0.11 – 16.21
CGT Impulsivity***	0.02 (0.01)	1.02	1.01 – 1.03
SRS Self-criticism	0.06 (0.03)	1.06	0.99 – 1.14
Beck Depression Inventory-II	0.01 (0.01)	1.01	0.98 – 1.04
Lifetime predictors (Negative Binomial)
Intercept***	4.32 (0.98)	86.99	82.47 – 91.73
CGT Impulsivity***	0.02 (0.01)	2.80	2.80 – 2.80
SRS Self-criticism	0.03 (0.03)	2.87	2.86 – 2.87
Beck Depression Inventory-II	0.01 (0.02)	2.67	2.67 – 2.67

Note. ZINB = zero-inflated negative binomial.

^*p < 0.05

^**p ≤ 0.01

^***p ≤ 0.001.