Fig. 3

Kaplan–Meier overall survival curves in early-stage cervical cancer patients undergoing primary surgery (n = 1425)according to different groups by various clinicopathological factors, including age (A), FIGO stage (B), SCC-Ag levels (C), histological grade (D), DSI (E), LVSI (F), LN metastasis (G), Routes of surgery (H), post-operative therapy (I), HR-HPV infection status before PSM (J), HR-HPV infection patterns before PSM (K), HR-HPV infection status after PSM (L), HR-HPV infection patterns after PSM (M). DSI deep stromal invasion, FIGO International Federation of Gynecology and Obstetrics, HR-HPV high risk human papillomavirus, LN lymph node, LVSI lymph-vascular space invasion, PSM propensity score matching, SCC-Ag serum squamous cell carcinoma antigen