PRKCI and cervical squamous intraepithelial neoplasia: The factors related to the progression of CIN that were identified in part 3.2, including older age, premenopause and multiple parity as well as significantly differentially expressed genes TGFBR2, FOXO1, CSKN1A1, PRKCI, and CTBP2, were included in the univariate logistic analysis.