Table 5.

Hierarchical Logistic Regression testing interaction effects of BPD features and shifting on prior incidence of self-harm.

	R2	Odds Ratio	95% CI
	$R_a^2-R_b^2$		Lower–Upper
Step 1	0.26–0.37
BPD		3.68**	2.62–5.16
Shifting		0.46**	0.34–0.62
Step 2	0.28–0.39
BPD		4.63**	3.07–6.98
Shifting		0.45**	0.33–0.62
BPD X Shifting interaction	1.75*	1.19–2.59

Note: $R_a^2$ = Cox and Snell, $R_b^2$ = Nagelkerke, * p < 0.05; ** p < 0.001.