R: Chronic Granulotamous Disease data

cgd {survival} | R Documentation

## Chronic Granulotamous Disease data

### Description

Data are from a placebo controlled trial of gamma interferon in chronic granulotomous disease (CGD). Contains the data on time to serious infections observed through end of study for each patient.

### Usage

    cgd

### Format

id

  subject identification number

center

  enrolling center

random

  date of randomization

treatment

  placebo or gamma interferon

sex

  sex

age

  age in years, at study entry

height

  height in cm at study entry

weight

  weight in kg at study entry

inherit

  pattern of inheritance

steroids

  use of steroids at study entry,1=yes

propylac

  use of prophylactic antibiotics at study entry

hos.cat

  a categorization of the centers into 4 groups

tstart, tstop

  start and end of each time interval

status

  1=the interval ends with an infection

enum

  observation number within subject

### Details

The `cgd0` data set is in the form found in the references, with one line per patient and no recoding of the variables. The `cgd` data set (this one) has been cast into (start, stop] format with one line per event, and covariates such as center recoded as factors to include meaningful labels.

### Source

Fleming and Harrington, Counting Processes and Survival Analysis, appendix D.2.

### See Also

`link{cgd0}`

[Package survival version 3.2-7 Index]