Significant Associations of SOX9 Gene Polymorphism and Gene Expression with the Risk of Osteonecrosis of the Femoral Head in a Han Population in Northern China

Table 4

Haplotype frequencies of the SOX9 gene between ONFH and control groups.

	Haplotype		Frequency		OR (95% CI)
	rs1042667	rs12601701	Controls (%)	Patients (%)
Hap1	A	A	10.09 (2.8)	21.49 (5.9)	2.199 (1.026–4.717)	0.038
Hap2	A	G	165.91 (46.3)	148.51 (40.8)	0.817 (0.608–1.099)	0.182
Hap3	C	A	178.91 (50.0)	185.51 (51.0)	1.073 (0.800–1.441)	0.636
Hap4	C	G	3.09 (0.9)	8.49 (t2.3)	2.745 (0.740–10.179)	0.116

#: test.