Table 1. Baseline characteristics including demographic and laboratory data of the study population.

Parameter	dCVS absent	dCVS present	p-value
number of patients	9	11
age (mean, range)	52.6 (31–66)	51.9 (39–64)	0.655*
female gender, n (%)	8 (88.9%)	8 (72.7%)	0.369†
WFNS scale, n (%)			0.119†
I	4 (44.4%)	3 (27.3%)
II	0 (0%)	4 (36.4%)
III	2 (22.2%)	0 (0%)
IV	1 (11.1%)	3 (27.3%)
V	2 (22.2%)	1 (9.1%)
modified Fisher scale, n (%)			0.243†
II	2 (22.2%)	0 (0%)
III	2 (22.2%)	4 (36.4%)
IV	5 (55.6%)	7 (63.6%)
mRS on discharge			0.545†
0	3 (33.3%)	4 (36.4%)
1	3 (33.3%)	1 (9.1%)
2	0 (0%)	1 (9.1%)
3	1 (11.1%)	3 (27.3%)
4	0 (0%)	1 (9.1%)
5	1 (11.1%)	0 (0%)
6	1 (11.1%)	1 (9.1%)
Length of stay in days, mean (range)	20.3 (9–41)	25.5 (12–53)	0.394*
Occlusive hydrocephalus requiring EVD	3 (33.3%)	7 (63.6%)	0.178†
Ventriculo-peritoneal shunt	1 (11.1%)	1 (9.1%)	0.881†
Intracerebral hemorrhage	3 (33.3%)	3 (27.3%)	0.769†
Cerebral edema	5 (55.6%)	8 (72.7%)	0.423†

dCVS: Doppler sonographic cerebral vasospasm, WFNS: World federation of neurosurgical societies, mRS: modified Rankin scale, EVD: external ventricular drainage,

^*Analysis of variance,

^†chi-square test.