cost: Copenhagen Stroke Study

Description

This data set contains a subset of the data from the Copenhagen stroke study.

Arguments

Format

This data frame contains the observations of 518 stroke patients :

age: Age of the patients in years.
sex: A factor with two levels female and male.
hypTen: Hypertension, a factor with two levels no and yes.
ihd: History of ischemic heart disease at admission, a factor with two levels no and yes.
prevStroke: History of previous strokes before admission, a factor with two levels no and yes.
othDisease: History of other disabling diseases (e.g. severe dementia), a factor with two levels no and yes.
alcohol: Daily alcohol consumption, a factor with two levels no and yes.
diabetes: Diabetes mellitus status indicating if the glucose level was higher than 11 mmol/L, a factor with two levels no and yes.
smoke: Daily smoking status, a factor with two levels no and yes.
atrialFib: Atrial fibrillation, a factor with two levels no and yes.
hemor: Hemorrhage (stroke subtype), a factor with two levels no (infarction) and yes (hemorrhage).
strokeScore: Scandinavian stroke score at admission to the hospital. Ranges from 0 (worst) to 58 (best).
cholest: Cholesterol level
time: Survival time (in days).
status: Status (0: censored, 1: event).

References

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.