Table 2.

Univariate and multivariate survival analyses of patients with kidney cancer according to various clinicopathological variables

Variable	N	8-year CSS (%)	Univariate P-value	Multivariate P-value
Sex
Male	61,662	67.3	<0.001	<0.001
Female	36,213	74.1
Race
White	81,181	68.8	0.189	<0.001
Black	10,691	68.9
Other	6,003	70
Pathological grade
Grade I	10,500	89.9	<0.001	<0.001
Grade II	32,024	85.3
Grade III	17,660	61.8
Grade IV	4,945	34.7
Unknown	32,746	54.4
Marital status at diagnosis
Married	62,047	70.3	<0.001	<0.001
Ever marrieda	19,584	62.8
Never married	16,244	70.2
Stage
Localized	62,668	89.4	<0.001	<0.001
Regional	16,731	57.7
Distant	18,476	6.8
Year of diagnosis
1990–1994	9,355	59.7	<0.001	<0.001
1995–1999	12,016	64.1
2000–2004	33,573	67.5
2005–2009	42,931	74.1
Age (years)
12–49	18,615	79.6	<0.001	<0.001
50–64	38,391	70.6
65–74	25,064	65.3
75–84	15,805	56
Histologic type
CCR	78,803	69.5	<0.001	<0.001
N-CCR	19,072	66.1

Note:

^aIncluding divorced, widowed, and separated.

Abbreviations: CSS, cancer-specific survival; CCR, clear cell carcinoma; N-CCR, non-clear cell carcinoma.