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

Table 2 Pathological results and postoperative treatment

	ARH (N = 155)	RRH1 ('06–'12) (N = 77)	RRH2 ('13–'18) (N = 91)	P
Depth of invasion	0.8 ± 0.5	0.6 ± 0.6	0.5 ± 0.5	< 0.001
LVSI	55 (50.5%)	21 (27.3%)	19 (20.9%)	< 0.001
Harvested pelvic LNs	19.7 ± 9.8	16.6 ± 9.2	9.6 ± 9.0	< 0.001
LN metastasis	16 (11.3%)	4 (5.2%)	9 (9.9%)	0.188
Tumor size	1.7 ± 1.4	2.0 ± 1.1	2.4 ± 1.7	0.014
Postoperative treatment				0.001
RT	28 (19.7%)	5 (6.5%)	4 (4.4%)
POAC	9 (6.3%)	6 (7.8%)	1 (1.1%)
CCRT	9 (6.3%)	7 (9.1%)	11 (12.1%)

ARH Abdominal radical hysterectomy, RRH Robotic radical hysterectomy, LVSI Lymphovascular space invasion, LN Lymph node, RT Radiotherapy, POAC Postoperative adjuvant chemotherapy, CCRT Concurrent chemoradiotherapy

ISSN: 1471-2407