Table 4.

ICPV-4h in relation to CVR and CBF in the vasospasm phase—a multiple linear regression analysis

Variables	(1) CVR (β)	(2) Global cortical CBF (β)
Age	0.07	− 0.14
WFNS grade	0.14	− 0.21a
Fisher scale	− 0.17	0.11
ICP	− 0.07	0.07
CPP	0.23a	0.02
ICPV-4h	− 0.19a	0.14

Italics indicate statistical significance

(1) R² = 0.13, ANOVA, p = 0.02

(2) R² = 0.08, ANOVA, p = 0.15

CBF cerebral blood flow, CPP cerebral perfusion pressure, CVR cerebrovascular resistance, ICP intracranial pressure, ICPV ICP variability, WFNS World Federation of Neurosurgical Societies