+-------+-------------------+
| cgd   | R Documentation   |
+-------+-------------------+

Chronic Granulotomous Disease data
----------------------------------

Description
~~~~~~~~~~~

Data are from a placebo controlled trial of gamma interferon in chronic
granulotomous disease (CGD). Uses the complete data on time to first
serious infection observed through end of study for each patient, which
includes the initial serious infections observed through the 7/15/89
interim analysis data cutoff, plus the residual data on occurence of
initial serious infections between the interim analysis cutoff and the
final blinded study visit for each patient. Only one patient was taken
off on the day of his last infection.

Usage
~~~~~

::

    cgd

Format
~~~~~~

+------------------+--------------------------------------------------+
| id:              | subject identifiction number                     |
+------------------+--------------------------------------------------+
| center:          | enrolling center                                 |
+------------------+--------------------------------------------------+
| random:          | date of randomization                            |
+------------------+--------------------------------------------------+
| treatment:       | placebo or gamma interferon                      |
+------------------+--------------------------------------------------+
| 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                |
+------------------+--------------------------------------------------+
+------------------+--------------------------------------------------+

Source
~~~~~~

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