Table 1.

Admission demographics

		HIT+		Significance
		no	yes
Age at admission	median	60	59	n.s.
	IQR	49 – 70	50 – 68
Gender	% female	66	90	p = 0.002
History of hypertension	% present	52	38	n.s.
History of diabetes	% present	6	7	n.s.
History of coronary artery disease	% present	10	10	n.s.
History of tobacco use	% present	35	31	n.s.
History of alcohol use	% present	21	10	n.s.
Aneurysm size, mm	median	7	6	n.s.
	IQR	5 – 10	4 – 8
Aneurysm treated only with clipping	% clipped	56	74	p = 0.038
Hunt-Hess score	median	3	3	n.s.
Admission Glasgow Coma Scale score	median	12	13	n.s.
	IQR	7 – 15	10 – 15
Admission FOUR score	median	9	14	n.s.
	IQR	5 – 16	8 – 16
World Federation of Neurosurgery score	median	3	2.5	n.s.
Fisher Hemorrhage score	median	3	3	n.s.