Table 1. Breakdown of key demographic and clinical presentation characteristics per year of presentation.

Year	# of male	# of female	Mean age	Mean SBP	Headache as worst ever as %	% with max intensity within one hour	Mean time between onset and presentation (hrs)	Pos fam HX%	% of smokers	% with HTN	% with syncope	% with neck pain
2007-2008	25	46	40.2	138	68	32	98	4	13	20.0	9.30	20.0
2008-2009	25	31	43.4	139	59	43	72.2	14	18	20.0	4.0	14.3
2009-2010	33	19	40	138	73	60	60.6	4	13.40	23.0	2.0	19.0
2010-2011	53	16	40.3	165	75	64	30.4	13	23	33.0	4.3	24.6
2011-2012	34	60	42.5	135	71	41	37	6	14.50	21.0	3.0	23.5
Total	170	172	41.28	143	69	48	59.64	8	16	23.0	4.5	20.0
95% CI			39.34 to 43.21	127.62 to 158.38	61.43 to 76.97	31.23 to 64.77	25.64 to 93.63	2.09 to 14.31	11.17 to 21.58	16.56 to 30.23	1.01 to 8.02	15.21 to 25.34