Table 1.

Baseline Characteristics of Patients With SAH in Finland by Geographic Region

	No. of SAHs	No. of hospitalized SAHs	Median age, y	Women, n (%)	Cumulative population in person-years between 1998 and 2017
Southern	3,484	2,746	57	2,088 (59.9)	40,351,046
Central	1,482	1,132	59	838 (56.6)	17,422,806
Western	1,318	912	60	770 (58.4)	17,674,243
Northern	1,442	1,156	57	771 (53.5)	14,640,718
Eastern	1,717	1,252	58	967 (56.3)	16,421,527
Nationwide	9,443	7,198	58	5,434 (57.6)	106,510,337

Abbreviation: SAH = subarachnoid hemorrhage.