Table 3. Haplotype frequencies and their association with OA risk in case and control subjects.

		Frequency		Without adjustment		With adjustment
SNPs	Haplotype	case	control	OR(95% CI)	Pa	OR(95% CI)	Pb
rs639752/rs650108/rs520540	CGATATGT	0.395	0.360	1[Ref]	---	1[Ref]	---
/rs646910/rs602128/rs679620	AAGTGCCC	0.345	0.352	0.90 (0.60 - 1.35)	0.61	0.77 (0.46 - 1.31)	0.33
/rs678815/rs522616	AAGTGCCT	0.175	0.199	0.81 (0.49 - 1.34)	0.41	0.72 (0.37 - 1.43)	0.35
	AGGAGCCT	0.075	0.089	0.78 (0.40 - 1.53)	0.47	0.47 (0.19 - 1.16)	0.10

OR: odd ratio; CI: confidence interval.

P-value <0.05 indicates statistical significance.

P ^a values were calculated from two-side Chi-square tests.

P ^b values were calculated by unconditional logistic regression adjusted for age.