elastase: Leukocyte Elastase dataset

In GsymPoint: Estimation of the Generalized Symmetry Point, an Optimal Cutpoint in Continuous Diagnostic Tests

Description

The elastase dataset was obtained from a study carried out in the Cardiology Department at the Galicia General Hospital (Santiago de Compostela, Spain). This study (Amaro et al., 1995) was conducted to assess the clinical usefulness of leukocyte elastase determination in the diagnosis of coronary artery disease (CAD).

Usage

data(elastase)

Format

A data frame with 141 observations on the following 3 variables.

elas

leukocyte elastase. Numerical vector

status

true disease status (absence/presence of coronary artery disease). Numerical vector (0=absence, 1=presence)

gender

patient's gender. Factor with Male and Female levels

Source

Amaro, A., Gude, F., Gonz<e1>lez-Juanatey, R., Iglesias, C., Fern<e1>ndez-V<e1>zquez, F., Garc<ed>a-Acu<f1>a, J. and Gil, M. (1995). Plasma leukocyte elastase concentration in angiographically diagnosed coronary artery disease. European Heart Journal 16, 615–622.

References

Amaro, A., Gude, F., Gonz<e1>lez-Juanatey, R., Iglesias, C., Fern<e1>ndez-V<e1>zquez, F., Garc<ed>a-Acu<f1>a, J. and Gil, M. (1995). Plasma leukocyte elastase concentration in angiographically diagnosed coronary artery disease. European Heart Journal 16, 615–622.

Examples

data(elastase)
summary(elastase)

Example output

Loading required package: truncnorm
Loading required package: Rsolnp
Loading required package: ROCR
Loading required package: gplots

Attaching package: 'gplots'

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

    lowess

      elas            status          gender   
 Min.   :  5.00   Min.   :0.0000   Female: 37  
 1st Qu.: 27.00   1st Qu.:0.0000   Male  :104  
 Median : 39.00   Median :1.0000               
 Mean   : 43.28   Mean   :0.6809               
 3rd Qu.: 51.00   3rd Qu.:1.0000               
 Max.   :163.00   Max.   :1.0000               

GsymPoint documentation built on May 1, 2019, 7:32 p.m.