CrohnD {robustbase} | R Documentation

## Crohn's Disease Adverse Events Data

### Description

Data set issued from a study of the adverse events of a drug on 117 patients affected by Crohn's disease (a chronic inflammatory disease of the intestines).

### Usage

    data(CrohnD)

### Format

A data frame with 117 observations on the following 9 variables.

`ID`

  the numeric patient IDs

`nrAdvE`

  the number of adverse events

`BMI`

  Body MASS Index, i.e., weight[kg] / (height[m])^2.

`height`

  in cm

`country`

  a factor with levels `0` and `1`

`sex`

  the person's gender, a binary factor with levels `M` `F`

`age`

  in years, a numeric vector

`weight`

  in kilograms, a numeric vector

`treat`

  how CD was treated: a factor with levels `0`, `1` and `2`, meaning placebo, drug 1 and drug 2.

### Source

form the authors of the reference, with permission by the original data collecting agency.

### References

Serigne N. Lô and Elvezio Ronchetti (2006). Robust Second Order Accurate Inference for Generalized Linear Models. Technical report, University of Geneva, Switzerland.

### Examples

    data(CrohnD)
    str(CrohnD)
    with(CrohnD, ftable(table(sex,country, treat)))

[Package robustbase version 0.92-7 Index]