Table 13. ALDH3B2 haplotype frequencies (%) in cases and controls and risk of ESCC.

Haplotypes	Case (freq)	Control (freq)	Crude OR(95% CI)	p
ALDH3B2Ars34589365Grs3741172Trs4646823Grs78402723Crs7947978Grs866907Grs9787887	247 (12.1)	323 (12.4)	1.007 [0.840∼1.206]	0.943
ALDH3B2Grs34589365Ars3741172Grs4646823Ars78402723Ars7947978Ars866907Grs9787887	184 (9.0)	219 (8.4)	1.106 [0.898∼1.363]	0.344
ALDH3B2Grs34589365Grs3741172Trs4646823Grs78402723Crs7947978Grs866907Ars9787887	1318 (64.6)	1735 (66.3)	1.000	1.000
ALDH3B2Grs34589365Grs3741172Trs4646823Grs78402723Crs7947978Grs866907Grs9787887	235 (11.5)	279 (10.6)	1.109 [0.919∼1.338]	0.281

Haplotypes were composited by ALDH3B2 rs34589365, rs3741172, rs4646823, rs78402723, rs7947978, rs866907, rs9787887. All those frequency < 3% were ignored in analysis, most common haplotype ALDH3B2G_rs34589365G_rs3741172 T_rs4646823G_rs78402723C_rs7947978G_rs866907A_rs9787887 was selected as reference.