Table 3.

ICPV in relation to CVR and CBF in the early phase and vasospasm phase—Spearman rank correlation analysis

Variables	Early phase			Vasospasm phase
	ICPV-1m	ICPV-30m	ICPV-4h	ICPV-1m	ICPV-30m	ICPV-4h
CBF	− 0.19	− 0.02	0.15	0.00	0.07	0.19a
CVR	0.07	− 0.01	− 0.23	− 0.02	− 0.11	− 0.20a

CBF cerebral blood flow, CVR cerebrovascular resistance, ICPV intracranial pressure variability. Italics indicate statistical significance

^ap < 0.05. The table indicates the r-values of the Spearman correlation analyses. Higher ICPV-4h was marginally associated with lower CVR (p = 0.053) in the early phase