Table 1.

Correlation coefficients between interval and continuous variables in mixed glioma population.

			rCBVmax	rCBVmean	PFS	KPS	WHO
	rCBVmax	Correlation/Coefficient Significance (2-tailed)	.	.935 .000	−.590  .001	−.536  .012	.553 .002
	rCBVmean	Correlation/Coefficient Significance (2-tailed)	.935 .000	.	−.563  .002	−.575  .006	.559 .002

rCBVmax: maximum relative cerebral blood volume

rCBVmean: mean relative cerebral blood volume

PFS: progression-free survival

KPS: Karnofsky Performance Score

WHO: World Health Organization grading of cerebral gliomas