This data set contains a subset of the data from the Copenhagen stroke study.
This data frame contains the observations of 518 stroke patients :
Age of the patients in years.
A factor
with two levels female
and male
.
Hypertension,
a factor with two levels no
and yes
.
History of
ischemic heart disease at admission, a factor with two levels no
and
yes
.
History of previous strokes before admission,
a factor with two levels no
and yes
.
History of other disabling diseases (e.g. severe
dementia), a factor with two levels no
and yes
.
Daily alcohol consumption, a factor with two levels no
and yes
.
Diabetes mellitus status indicating if the
glucose level was higher than 11 mmol/L, a factor with two levels no
and yes
.
Daily smoking status, a factor with two levels
no
and yes
.
Atrial fibrillation, a factor
with two levels no
and yes
.
Hemorrhage (stroke
subtype), a factor with two levels no
(infarction) and yes
(hemorrhage).
Scandinavian stroke score at admission to the hospital. Ranges from 0 (worst) to 58 (best).
Cholesterol level
Survival time (in days).
Status (0
: censored, 1
: event).
Joergensen HS, Nakayama H, Reith J, Raaschou HO, and Olsen TS. Acute stroke with atrial fibrillation. The Copenhagen Stroke Study. Stroke, 27(10):1765-9, 1996.
Mogensen UB, Ishwaran H, and Gerds TA. Evaluating random forests for survival analysis using prediction error curves. Technical Report 8, University of Copenhagen, Department of Biostatistics, 2010.