Californium-252 neutron brachytherapy combined with external pelvic radiotherapy plus concurrent chemotherapy for cervical cancer: a retrospective clinical study

Cancer Communications

Table 2 Univariate analysis of factors related to 3-year overall survival rate of cervical cancer patients

Characteristic	P value	HR	95% CI
Stage (FIGO)	<0.001
III vs. I–II	0.181	1.95	0.74–5.13
IV vs. I–II	<0.001	20.60	6.11–69.39
Pre-treatment tumor size (≤4.0 cm vs. >4.0 cm)	<0.001	0.17	0.06–0.4
Lymph node metastasis (yes vs. no)	<0.001	0.02	<0.01–0.17
Age (per 1-year increase)	0.850	1.01	0.96–1.05

Patients with unknown lymph node status were excluded from the univariate analysis with the characteristic of lymph node metastasis
HR hazard ratio, CI confidence interval, FIGO International Federation of Gynecology and Obstetrics