Table 2.

Meta-analysis of the combined case-control studies for rs2070106 and rs8078650 in CNP

SNP ID	Studies	Ethnicities	Category	No.	MAFa	OR(95% CI)
rs2070106	Present study	Han Chinese	Case	84	0.393	1.10(0.60,2.03)
			Control	92	0.370
	Tang et al.(2007)	Han Chinese	Case	426	0.403	1.08(0.82,1.42)
			Control	437	0.384
	Peirce et al.(2006)	UK&Ireland White	Case	683	0.343	1.18(0.94,1.48)
			Control	693	0.306
	Usui et al.(2006)	Japanese	Case	759	0.38	1.00(0.81,1.23)
			Control	729	0.38
	Pooled	All		3903		1.08(0.95,1.23)
rs8078650	Present study	Han Chinese	Case	85	0.135	1.20(0.52,2.78)
			Control	92	0.158
	Tang et al.(2007)	Han Chinese	Case	422	0.146	1.07(0.74,1.56)
			Control	436	0.155
	Usui et al.(2006)	Japanese	Case	746	0.14	1.00(0.75,1.34)
			Control	745	0.14
	Pooled	All		2526		1.04(0.83,1.30)

^a: Minor allele frequency