Table 1. Patient characteristics and radiological assessment.

Patient characteristics	NASAH	PM-SAH	NPM-SAH
DSA negativ
Number of patients	190	87 (46% of NASAH)	103 (54% of NASAH)
Age (years)	55,8 ± 15	51,5 ± 13	60 ± 16
Female	77 (40%)	31 (36%)	46 (45%)
Low-back/leg pain
Yes	10 (5%)	2 (2%)	8 (8%)
No	180 (95%)	85 (98%)	95 (92%)
Fisher -Score
Fisher 3 pattern	35 (18%)	0 (0%)	35 (34%)
non-Fisher 3 pattern	155 (82%)	87 (100%)	68 (66%)
Fisher 1			23 (34%)
Fisher 2			45 (66%)
Fisher 4			0 (0%)
CT-negative (diagnosis by LP)	23 (12%)	0 (0%)	23 (22%)
Positive MR spinal axis	2 (1%)	0 (0%)	2 (2%)

Patient characteristics and radiological assessment of 190 non-aneurysmal subarachnoid hemorrhage patients.

Data are shown as n (%), or median ± standard deviation; PM-SAH perimesencephalic subarachnoid hemorrhage, NPM-SAH non-perimesencephalic subarachnoid hemorrhage