Stroke, Vol 23, 357-361, Copyright © 1992 by American Heart Association
P Jerntorp and G Berglund
BACKGROUND AND PURPOSE: A stroke registry covering the city of Malmo,
Sweden (population 232,000) was started in January of 1989 to prospectively
follow up stroke incidence, recurrence, and fatality rates. METHODS:
Patients with presumed stroke were interviewed within 1 week after
admission to the hospital, and their medical records were examined.
Continuous validation against hospital diagnosis showed well over 90% of
all stroke cases in Malmo to have been included. RESULTS: Incidence rates
per 100,000 residents were 300 for all stroke events and 225 for first-ever
stroke, lower than those reported from other studies. The distribution of
stroke diagnostic categories was 3% subarachnoid hemorrhage, 10%
intracerebral hemorrhage, 50% cerebral infarction, and 38% unspecified
stroke. The diagnosis was based on computed tomography in 51% of first-ever
stroke cases. Median age was 73.1 years for men and 79.7 years for women.
Incidence rates for all stroke diagnostic categories except subarachnoid
hemorrhage increased with age. Prior stroke, hypertension, smoking, atrial
fibrillation, and diabetes mellitus were major risk factors for all stroke
events. The presenting symptoms were hemiparesis in 74%, speech disorder in
49%, and clouded consciousness in 19% of the patients. The overall case-
fatality rate at 30 days was 15%; the rate for intracerebral hemorrhage was
37% and that for cerebral infarction was 10%. CONCLUSIONS: Our findings
confirm the value of a stroke registry for stroke epidemiology purposes and
as a tool for specific stroke research.
ARTICLES
Stroke registry in Malmo, Sweden
Department of Internal Medicine, Lund University, Malmo General Hospital, Sweden.
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