Efficacy of Chemotherapy Alone in Patients With Poor-differentiated Early-stage Cervical Cancer

Inclusion Criteria: 1. The age of patients is 18-70 years old. 2. Patients with cervical cancer who undergo radical hysterectomy and pelvic lymphadenectomy as initial treatment (including laparoscopic and abdominal surgery). 3. Clinical stage is IB1-IB2 according to FIGO 2018 stage. 4. The postoperative pathological type is squamous cell carcinoma/adenocarcinoma/adenosquamous carcinoma. 5. The degree of tumor differentiation is poorly differentiated. 6. Do not meet the Sedlis criteria or the four-factor model, but meet one of the following factors: ① LVSI (+); ② tumor diameter \> 2cm; ③ Depth of cervical stromal invasion \> superficial 1/3; (4) adenocarcinoma. Exclusion Criteria: 1. Postoperative pathological stage ≥IIA (according to the 2018 FIGO staging system). 2. Patients with the following high risk factors: ① lymph node metastasis; ② parametrial involvement; ③ positive surgical margin; ④ vaginal involvement. 3. Patients received neoadjuvant chemotherapy. 4. There was evidence of distant metastasis on preoperative imaging examination. 5. Patients received postoperative radiotherapy. 6. History of abdominal or pelvic radiotherapy. 7. Patients with other malignant tumors. 8. Patients with missing or partially missing clinical, surgical, and pathological data were lost to follow-up.