Table 2.

Univariate and multivariate analyses of disease-free survival

Variables	Univariate analysis			Multivariate analysis
	HR	95% CI	p-value	HR	95% CI	p-value
Agea	0.98	0.95–1.01	0.140
FIGO stage	2.02	1.36–3.00	< 0.001
Tumor sizea	1.43	1.14–1.08	0.002	1.37	1.06–1.77	0.015
Pelvic lymph node	1.89	0.90–3.96	0.094
Para-aortic lymph node	4.21	1.89–9.40	< 0.001	3.75	1.39–10.15	0.009
SCC antigena	1.01	1.00–1.01	0.122
pSUVmaxa	1.04	0.99–1.08	0.086
Nodal SUVmaxa	1.07	1.04–1.11	< 0.001	1.05	1.01–1.09	0.020
HPV negative	2.37	1.01–5.55	0.047	3.68	1.44–9.41	0.007

^aAge, Tumor size, SCC antigen, pSUVmax, nodal SUVmax were analyzed as continuous variables. Hazard ratio represents the increase in hazard for each variable

HR hazard ratio, FIGO International Federation of Gynecology and Obstetrics, SCC squamous cell carcinoma, SUVmax maximum standardized uptake, pSUVmax SUVmax of primary tumor, nodal SUVmax SUVmax of the lymph node with the highest FDG uptake, HPV human papilloma virus