. Author manuscript; available in PMC: 2019 Jan 1.

Published in final edited form as: Eur Radiol. 2017 Jul 5;28(1):124–132. doi: 10.1007/s00330-017-4925-6

Table 2.

Median and Mean ± Standard Deviation of Tumour Size Measurements

	All ccRCCs		HG ccRCCs		LG ccRCCs		P value for Wilcoxon rank sum test
	Median	Mean ± SD	Median	Mean ± SD	Median	Mean ± SD	P value for Wilcoxon rank sum test
Length_max	5.7 cm	5.5 ± 1 cm	5.5 cm	5.2 ± 0.8 cm	6 cm	5.7 ± 1 cm	0.2
Area_roi	17 cm²	18 ± 7 cm²	17 cm²	18 ± 9 cm²	16.4 cm²	19 ± 6 cm²	0.6
Vol_est	135 cm³	137 ± 69 cm³	140 cm³	127 ± 61 cm³	131 cm³	144 ± 76 cm³	0.7
Shape (SD of AP, SI and LL)	0.4	0.5 ± 0.4	0.36	0.3 ± 0.2	0.36	0.6 ± 0.5	0.2

Median and Mean ± standard deviation of maximum length (Length_max), area within the ROI (Area_roi), estimated tumour volume (Volest) and tumour shape (standard deviation of AP, SI and LL). Values were stratified by subtypes as well as for all tumours. Wilcoxon rank sum test was performed to test the difference in mean between HG and LG ccRCCs.