The Natural History and Outcomes of the Patients with Carcinosarcoma Involving Kidney and Renal Pelvis

Table 3

Multivariate analyses of factors associated with mortality in patients with carcinosarcoma of kidney and renal pelvis (CSKP).

Characteristics	Group	HR	(95% CI)	𝑃 value
Age	<75	1.00	(1.19–8.33)	0.02
	≥75	3.16
Gender	Female	1.00	(0.90–4.82)	0.085
	Male	2.08
SEER stage	Distant	1.00	(.096–0.74)	0.011
	Localized/regional	0.27
Location	Renal pelvic	1.00	(0.29–1.63)	0.40
	Kidney	0.69
CDS	No	1.00	(0.29–5.64)	0.75
	Nephrectomy	1.28
Diagnosis year	1973–1984	1.00	(0.02–0.77)	0.025
	1985–2004	0.13

HR: harzard ratio; SEER: Surveillance, Epidemiology, and End Results.
CDS: cancer directed surgery.