Table 2 -.

Univariable and multivariable analyses of predictors of cancer specific survival for patients who underwent cytoreductive nephrectomy for metastatic sarcomatoid RCC (n=105)

Variable	Univariable			Multivariable
	HR	95% CI	p	HR	95% CI	p
Age	1.02	1.00, 1.04	0.10
Sex
Female	Ref.
Male	0.97	0.56, 1.69	>0.9
BMI (n=102)	0.99	0.95, 1.04	0.8
Smoking Status (n=101)
Current	Ref.
Former	1.83	0.65, 5.12	0.3
Never	1.62	0.57, 4.61	0.4
KPS Category (n=94)
<80	Ref.
≥80	0.90	0.45, 1.78	0.8
Histology
ccRCC	Ref.
non-ccRCC	1.61	0.98, 2.65	0.058
Tumor Size (n=103)	1.02	0.96, 1.08	0.5
T Stage Group (n=103)
T1/T2	Ref.
T3/T4	1.49	0.68, 3.27	0.3
N Stage
N0/Nx	Ref.			Ref.
N1/N2	2.37	1.48, 3.79	<0.001	2.62	1.62, 4.23	<0.001
WBC	1.04	0.98, 1.10	0.2
RBC	0.80	0.54, 1.19	0.3
PLT/100	1.19	0.98, 1.45	0.072
Neutrophils	1.06	1.00, 1.13	0.070
Lymphocytes	0.79	0.54, 1.15	0.2
Monocytes	1.10	0.46, 2.60	0.8
NLR	1.20	1.08, 1.34	<0.001	1.23	1.10, 1.37	<0.001
LMR	0.94	0.82, 1.06	0.3
PLR/100	1.19	1.02, 1.38	0.027

BMI = body mass index; KPS = Karnofsky performance status; ccRCC = clear cell renal cell carcinoma; WBC = white blood cells; RBC = red blood cells; PLT = platelets; NLR = neutrophil-lymphocyte ratio; LMR = lymphocyte-monocyte ratio; PLR = platelet-lymphocyte ratio; NA = not applicable; Ref. = reference.