Efficacy of closed reduction for developmental dysplasia of the hip: midterm outcomes and risk factors associated with treatment failure and avascular necrosis

Table 3 The Binary logistic regression model of the risk factors related to the CR in the treatment of DDH

	Regression coefficient	95% CI of coefficient	Odds ratio	P
Intercept (constant)	− 1.656
Age grading at initial CR
> 18.35 months vs. ≤ 18.35 months	0.990	1.124 to 6.447	2.692	0.026
MI after CR
< 35.35 mm vs > 35.35 mm	1.581	2.013 to 11.741	4.862	< 0.001

ISSN: 1749-799X