INFARCTION: Study Case of Myocardial Infarction

In TRSbook: Functions and Datasets to Accompany the Book "The R Software: Fundamentals of Programming and Statistical Analysis"

Description

The study for which the following data were collected aimed at examining whether women who use or have used oral contraceptives are at a higher risk of myocardial infarction. The sample includes 149 women who had myocardial infarction (cases) and 300 women who did not (controls). The main exposure factor is usage of oral contraceptives; the data also include age, weight, height, tobacco consumption, hypertension and family history of cardiovascular diseases.

Usage

data(INFARCTION)

Format

A data frame with 449 observations measured on the following 10 variables:

NUMBER

Identification.

infarct

0 = controls; 1 = cases. Myocardial infarction.

co

0 = never; 1 = yes. Usage of oral contraceptives.

tobacco

0 = no; 1 = smoker; 2 = fromer smoker. Tobacco usage.

age

Age in years.

weight

Weight in kg.

height

Height in cm.

atcd

0 = no; 1 = yes. Family history of cardiovascular diseases.

hta

0 = no; 1 = yes. Hypertension.

Author(s)

Lafaye de Micheaux Pierre <[e-mail]>, Remy Drouilhet <[e-mail]>, Liquet Benoit <[e-mail]>

Source

http://www.biostatisticien.eu/springeR/

Examples

data(INFARCTION)
str(INFARCTION) 

Example output

Loading required package: xtable
Loading required package: RColorBrewer
Loading required package: gdata
gdata: read.xls support for 'XLS' (Excel 97-2004) files ENABLED.

gdata: read.xls support for 'XLSX' (Excel 2007+) files ENABLED.

Attaching package: 'gdata'

The following object is masked from 'package:stats':

    nobs

The following object is masked from 'package:utils':

    object.size

The following object is masked from 'package:base':

    startsWith

Loading required package: IndependenceTests
'data.frame':	449 obs. of  9 variables:
 $ NUMBER : int  1 2 3 4 5 6 7 8 9 10 ...
 $ infarct: int  0 0 0 0 0 0 0 0 0 0 ...
 $ co     : int  0 0 0 0 0 0 0 0 0 0 ...
 $ tobacco: int  0 0 0 0 0 0 0 0 0 0 ...
 $ age    : int  47 17 35 82 50 31 60 30 44 38 ...
 $ weight : int  48 NA 53 78 52 47 60 75 68 NA ...
 $ height : int  173 162 163 157 172 184 169 174 164 167 ...
 $ atcd   : int  0 0 0 0 NA 0 0 0 0 0 ...
 $ hta    : num  0 0 0 0 0 0 0 0 0 0 ...

TRSbook documentation built on May 2, 2019, 2:45 a.m.