Developmental pathways of repetitive non-suicidal self-injury: predictors in adolescence and psychological outcomes in young adulthood

Table 4 Separate Logistic Regressions, Predicting RepNSSI Pattern Group Membership from Psychological Difficulties, Poor Sleep and NSSI (total score on DSHI-9r) at T1 and at T2

Predictors	Late-Onset vs. No RepNSSI					Stable Adolescence-Limited vs. Prolonged
Predictors	B (SE)	Wald	p	OR	95% CI	B (SE)	Wald	p	OR	95% CI
*T1 Predictors*
Step 1
SDQ total difficulties	0.08 (0.05)	2.05	0.152	1.08	0.97–1.20	0.08 (0.06)	1.93	0.164	1.09	0.97–1.22
Poor sleep	0.25 (0.30)	0.68	0.409	1.28	0.71‒2.32	-0.37 (0.35)	1.12	0.290	0.69	0.35‒1.37
Constant	-3.97 (0.73)	29.38	< 0.001	0.02		0.23 (1.04)	0.05	0.827	1.26
Step 2
SDQ total difficulties	0.07 (0.05)	1.42	0.233	1.07	0.96–1.19	0.09 (0.07)	1.45	0.228	1.09	0.95–1.26
Poor sleep	0.18 (0.32)	0.34	0.562	1.20	0.65-2-23	-0.37 (0.35)	1.13	0.288	0.69	0.35–1.37
NSSI, total	0.35 (0.20)	2.93	0.087	1.41	0.95-2-10	-0.00 (0.03)	0.01	0.923	1.00	0.95–1.05
Constant	-3.96 (0.75)	28.07	< 0.001	0.02		0.23 (1.04)	0.05	0.827	1.26
*T2 Predictors*
Step 1
SDQ total difficulties	0.04 (0.05)	0.51	0.475	1.04	0.94–1.15	-0.01 (0.06)	0.01	0.910	0.99	0.89–1.11
Poor sleep	0.65 (0.26)	6.35	0.012	1.91	1.16‒3.16	0.21 (0.31)	0.45	0.505	1.23	0.67‒2.27
Constant	-4.37 (0.70)	39.27	< 0.001	0.01		0.05 (0.95)	0.00	0.958	1.05
Step 2
SDQ total difficulties	0.03 (0.05)	0.23	0.634	1.03	0.93–1.13	0.03 (0.06)	0.28	0.596	1.03	0.92–1.17
Poor sleep	0.64 (0.26)	6.06	0.014	1.90	1.14–3.16	0.39 (0.34)	1.32	0.251	1.47	0.76–2.85
NSSI, total	0.21 (0.19)	1.19	0.276	1.23	0.85–1.80	-0.05 (0.03)	3.43	0.064	0.95	0.90-1.00
Constant	-4.37 (0.70)	38.87	< 0.001	0.01		-0.09 (0.97)	0.01	0.926	0.92

ISSN: 1753-2000