Table 2.

Univariate and multivariate logistic regression for distal metastasis of renal carcinoma.

Characteristics	Univariate logistics regression			Multivariable logistics regression
	OR	CI	P	OR	CI	P
Age	1.02	1.02–1.02	<0.001	1	1–1.01	0.007
Grade
Well differentiated	Ref	Ref	Ref	Ref	Ref	Ref
Moderately differentiated	1.77	1.32–2.39	<0.001	1.25	0.92–1.69	0.161
Poorly differentiated	7.18	5.38–9.58	<0.001	2.49	1.85–3.37	<0.001
Undifferentiated; anaplastic	19.95	14.92–26.68	<0.001	3.63	2.67–4.94	<0.001
unknown	19.74	14.88–26.19	<0.001	9.23	6.89–12.36	<0.001
N
N0	Ref	Ref	Ref	Ref	Ref	Ref
N1	24.08	21.92–26.45	<0.001	8.69	7.81–9.67	<0.001
N2	7.03	5.24–9.43	<0.001	2.18	1.57–3.04	<0.001
NX	6.05	5.4–6.78	<0.001	3.05	2.63–3.53	<0.001
Primary.Site
C64.9-Kidney	Ref	Ref	Ref	Ref	Ref	Ref
C65.9-Renal pelvis	1.02	0.89–1.17	0.82	NA	NA	NA
T
T1	Ref	Ref	Ref	Ref	Ref	Ref
T2	6.51	5.89–7.18	<0.001	2.79	2.45–3.18	<0.001
T3	7.61	7.02–8.26	<0.001	3.91	3.5–4.36	<0.001
T4	33.89	29.61–38.79	<0.001	7.8	6.54–9.3	<0.001
TX	39.14	33.73–45.43	<0.001	9.44	7.94–11.22	<0.001
Tumor.Size	1.02	1.02–1.02	<0.001	1.01	1.01–1.01	<0.001