Table 2.

Association of rs726252 in PAPPA2 with developmental dysplasia of the hip when stratified by gender.

Groups compared	TT versus other combined			CC versus other combined			T allele versus C allele			All genotypes
	P value	OR	95% CI	P value	OR	95% CI	P value	OR	95% CI	P value
All patients (n = 697) versus all controls (n = 707)	0.315	0.874	0.672 to 1.137	0.980	1.015	0.326 to 3.161	0.355	0.892	0.699 to 1.137	0.590
Female patients (n = 594) versus female controls (n = 299)	0.393	0.859	0.606 to 1.217	0.381	2.530	0.294 to 21.751	0.531	0.901	0.652 to 1.247	0.406
Male patients (n = 103) versus male controls (n = 408)	0.950	1.017	0.600 to 1.724	0.830	0.790	0.091 to 6.838	0.996	1.001	0.616 to 1.627	0.971