Radical surgery versus standard surgery for primary cytoreduction of bulky stage IIIC and IV ovarian cancer: an observational study

Table 10 Univariate and multivariate analysis of progression-free survival

Characteristic	N	Median PFS	Univariate	Multivariate
		(months)	P value	HR (95 %CI)	P value
FIGO stage			0.004	1.62 (1.16–2.27)	0.001
IIIC	305	15.3
IV	46	11.4
Residual disease in upper abdomen			<0.001	1.29 (1.16–1.44)	0.002
0 cm	75	23.3
0–0.5 cm	54	17.8
0.5–1 cm	85	13.5
>1 cm	137	12.6
Total	351	14.7

Abbreviations: N number of patients, FIGO International Federation of Gynecology and Obstetrics, PFS progression-free survival, HR hazard ratio, 95 % CI 95 % confidence interval

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