(a)

Characteristic	Mean preoperative NLR (SD)	P value
Age	2.8 (1.4)	<0.01a
Gender		<0.01b
Male	3.0 (1.4)
Female	2.6 (1.3)
Race		<0.01b
Caucasian	2.9 (1.4)
African American	1.9 (0.9)
Other	2.7 (1.6)
ASA score		0.18b
I-II	2.8 (1.4)
III-IV	2.9 (1.5)
Preoperative Crea	2.8 (1.4)	<0.01a
Preoperative eGFR	2.8 (1.4)	<0.01a
Pathology		0.75b
Benign	2.9 (1.4)
Malignant	2.8 (1.3)
Pathological subtypes		0.34b
Benign
Oncocytoma	2.9 (1.4)
Angiomyolipoma	2.8 (1.4)
Other benign	2.7 (1.2)
Malignant
Conventional RCC	2.8 (1.3)
Papillary RCC	3.1 (1.7)
Chromophobe RCC	2.5 (1.1)
Cystic RCC	3.1 (2.3)
Unclassified RCC	2.5 (1.3)
Other malignant	2.3 (0.9)

^aMeasure of association by Spearman correlation.

^bMeasure of association by Kruskal-Wallis test.