CD8A and cervical squamous intraepithelial neoplasia: In the CIN group and the control groupe, the local vaginal CD4 levels were 8.67 (6.21-10.76) pg/ml and 7.26 (5.73-9.03) pg/ml (P value<0.01), CD8 levels were 6.07(4.50-8.03) pg/ml and 4.92 (3.66-6.51) pg/ml (P value<0.01), CD4/CD8 levels were 1.42 (1.05-1.89) and 1.