Table 1.

Hierarchical logistic regression examining the relationship between restrictive eating and nonsuicidal self-injury.

	R2	χ2(df)	B	SE	Wald(df)	OR [95% CI]
Step 1	0.25	19.21(3)**
Age			−0.13	0.07	3.06(1)	0.88 [0.76, 1.02]
Gender			0.85	0.65	1.75(1)	0.43 [0.12, 1.57]
Restrictive eating			1.92	0.52	13.31(1)**	6.68 [2.41, 18.54]
Step 2	0.27	20.73(5)*
Age			−0.13	0.07	3.29(1)	0.88 [0.77, 1.01]
Gender			1.05	0.69	2.33(1)	2.85 [0.74, 10.94]
Restrictive eating			2.04	0.56	13.19(1)**	7.72 [2.56, 23.28]
Binge eating			−0.80	0.68	1.38(1)	0.45 [0.12, 1.71]
Purging			0.22	0.82	0.07(1)	1.25 [0.25, 6.18]

Note.

^*p < 0.01

^**p < 0.001

OR = odds ratio; a confidence interval that does not cross one indicates a significant odds ratio.