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Table 3 Multivariate analysis of various factors correlated with progression-free survival

From: The institutional learning curve is associated with survival outcomes of robotic radical hysterectomy for early-stage cervical cancer-a retrospective study

 No. of patientsPFS
Multivariate analysis
HR (95% CI)P
Age, years (continuous)1681.025 (0.956–1.099)0.4894
LC
 2006~2012771 (Reference) 
 2013~2018910.065 (0.007–0.603)0.0162*
BMI
 < 251301 (Reference) 
 ≥ 25380.243 (0.025–2.404)0.2264
Stage
 IB1, IB21411 (Reference) 
 IA1, IA2270.638 (0.092–4.446)0.6502
Histology
 SCC1181 (Reference) 
 AC & AS501.367 (0.375–4.986)0.6357
Invasiveness
 < 0.3 cm971 (Reference) 
 ≥ 0.3 cm711.139 (0.297–4.363)0.8493
LVSI
 No1281 (Reference) 
 Yes404.590 (0.973–21.659)0.0543
No. of harvested LNs
 < 201291 (Reference) 
 ≥ 20390.325 (0.068–1.557)0.1597
Metastatic LNs
 No1551 (Reference) 
 Yes132.609 (0.424–16.041)0.3006
Tumor size
 < 2 cm1251 (Reference) 
 ≥ 2 cm435.651 (1.255–25.448)0.0241*
Postoperative treatment
 Yes341 (Reference)0.0755
 No1340.185 (0.029–1.189) 
  1. PFS Progression-free survival, HR Hazard ratio, CI Confidential interval, LC Learning curve, BMI Body mass index, SCC Squamous cell carcinoma, AC Adenocarcinoma, AS Adenosquamous, LVSI Lymphovascular space invasion, LN Lymph node; *, P < 0.05