All cases of stroke in Tartu, Estonia, during the period 1991--1993, with follow-up until January 1, 1996.
strokeA data frame with 829 observations on the following 10 variables.
sexa factor with levels Female and Male.
dieda Date, date of death.
dstra Date, date of stroke.
agea numeric vector, age at stroke.
dgna factor, diagnosis, with levels ICH
(intracranial haemorrhage), ID (unidentified). INF
(infarction, ischaemic), SAH (subarchnoid haemorrhage).
comaa factor with levels No and Yes,
indicating whether patient was in coma after the stroke.
diaba factor with levels No and Yes,
history of diabetes.
minfa factor with levels No and Yes,
history of myocardial infarction.
hana factor with levels No and Yes, history
of hypertension.
obsmonthsa numeric vector, observation times in months (set to 0.1 for patients dying on the same day as the stroke).
deada logical vector, whether patient died during the study.
J. Korv, M. Roose, and A.E. Kaasik (1997). Stroke Registry of Tartu, Estonia, from 1991 through 1993. Cerebrovascular Disorders 7:154--162.