IFNG and cervical squamous intraepithelial neoplasia: The levels of IFN-γ in the UCC group, the CIN group and the healthy control group were 7.75 ± 3.32 pg/mL, 8.47 ± 3.35 pg/mL and 14.25 ± 4.95 pg/mL, respectively (Figure 4B).