C/C genotype of XPC exon 15 may be one of the factors that affect the risk of developing ESCC in non-smoking population in the high incidence region of Hebei Province.

• XPC基因第15外显子C/C基因型可能是影响河北省食管癌、贲门癌高发区磁县和涉县非吸烟人群ESCC发病风险的因素之一。