Clinical Features of Sarcomatoid Carcinoma (Carcinosarcoma) of the Urinary Bladder: Analysis of 221 Cases

Table 4

COX proportional multivariate analysis of factors associated with sarcomatoid carcinoma (carcinosarcoma) of the urinary bladder disease specific mortality.

Characteristics	Group	Hazard ratio	95% CI	P value
Age	Continuous	1.01	0.99–1.03	.45
Gender	Male	1.00
	Female	1.26	0.75–2.11	.39
Ethnicity	White	1.00
	Others	1.28	0.58–2.83	.55
SEER Stage	Localized	1.00
	Regional	2.17	1.08–4.38	.03
	Distant	8.86	4.03–19.51	$<$.0001
	Unknown	1.72	0.64–4.62	.28
Married	Yes	1.00
	No	1.30	0.77–2.20	.33
Diagnose year	1973–1984	1.00
	1985–1994	0.80	0.32–2.05	.65
	1995–2004	1.15	0.47–2.82	.76
Cystectomy	No	1.00
	Yes	0.80	0.43–1.50	.49
Radiation	No	1.00
	Yes	1.15	0.64–2.09	.64
Combination*	No	1.00
	Yes	0.38	0.08–1.85	.23

HR $=$ Hazard ratio; CI $=$ Confidence interval
*Combination $=$ combination therapy of cystectomy and radiation.