In addition, <i>LEPR</i> rs1137101 G>A polymorphism decreased ESCC risk in some subgroups (ever smoking subgroup: GA vs. GG: adjusted OR=0.66, 95%CI=0.44-1.00, <i>P</i>=0.049; ever drinking subgroup: GA vs. GG: adjusted OR=0.54, 95%CI=0.31-0.95, <i>P</i>=0.031 and GA/AA vs. GG: adjusted OR=0.54, 95%CI=0.31-0.93, <i>P</i>=0.027).