No associations in genotype and allelic frequencies of TNFR1 rs767455 and TNFR1 rs2234649 polymorphisms were observed between SIL and control groups (Table 2), even when the SIL group was stratified into LSIL and HSIL subgroups (Table 3). Here, TNFRSF1A is linked to squamous cell intraepithelial neoplasia.