Table 1.

Sociodemographic Characteristics of Stroke Investigative Research and Education Network Study Sites

SIREN site(S)	Population	Ethnic group	Hospital/University Coordination Site
Ibadan	3.67 million	Yoruba	University College Hospital: the first teaching hospital in Nigeriawith 850 teaching beds tertiary center with several community care centers. Blossom Center for Neurorehabilitation: serves as a first-line and referral center for the identification, treatment, management of all neurological cases to adjoining cities in Nigeria and SSA.
Abeokuta	557,000	Yoruba	Federal Medical Center: is a 250-bed regional tertiary center which receives patients from Ogun and neighboring states in Nigeria and other countries. SHH: is the oldest missionary community hospital in Nigeria focusing on underserved communities in the subregion.
Ilorin	973,671	Hausa and Yoruba	UITH is a 550-bed hospital with 130 beds for medical inpatients, of which 10 are dedicated to acute stroke care. This is in addition to 23 beds for medical emergencies. In addition, the hospital provides community-based primary health care services in three adjoining states, namely, Esie in Kwara, Ihima in Kogi, and Kishi in Oyo state.
Kano	4.10 million	Hausa and Fulani	Aminu Kano Teaching Hospital, a tertiary referral health center with 78 beds.
Zaria	736,098	Hausa and Fulani	Ahmadu Bello Teaching Hospital with 768 beds remains a major referral center for the 19 Northern States.
Accra	2.57 million	Akan, Ga-Dangme and Ewe are dominant.	Korle Bu Teaching Hospital, a tertiary center with 1500 beds. Stroke cases are referred from all levels of health care.
Kumasi	2.02 million	Akan sub-group of Ashanti are dominant	Komfo Anakye teaching hospital, a tertiary center with 100 beds.
Ilorin	950,000	Yoruba	University of Ilorin Teaching Hospital.

SIREN, Stroke Investigative Research and Education Network; SSA, sub-Saharan Africa.