R: Indonesian Children's Health Study

indon {DPpackage} | R Documentation

## Indonesian Children's Health Study

### Description

This data set consider respiratory infection information of 250 indonesian children reported by Sommer, Katz, and Tarwotjo (1984). The children, all preschoolers, were seen quarterly for up to six quarters. At each examination, the presence or absence of respiratory infection was noted.

### Usage

    data(indon)

### Format

A data frame with 1200 observations on the following 9 variables.

`id`

  an ordered factor giving a unique identifier for the subject in the study.

`gender`

  a numeric vector giving the gender.

`height`

  a numeric vector giving the height for age as a percentage of the National Center for Health Statitics standard centered at 90.

`cosv`

  a numeric vector giving the seasonal cosine for the annual cycle.

`sinv`

  a numeric vector giving the seasonal sine for the annual cycle.

`xero`

  a numeric vector giving the presence (1) or absence (0) of xeropthalmia.

`baseage`

  a numeric vector giving the age at the entry.

`age`

  a numeric vector giving the age of the child in months centered at 36

`infect`

  a numeric vector giving the presence (1) or absence (0) of respiratory infection.

### Source

Sommer, A., Katz, J., and Tarwotjo, I. (1984) Increased risk of respiratory infection and diarrhea in children with pre-existing mild vitamin A deficiency, American Journal of Clinical Nutrition, 40: 1090-1095.

### References

Zeger, S.L., and Karim, M.R. (1991) Generalized linear models with random effects: A Gibbs sampling approach. Journal of the American Statistical Association, 86: 79-86.

### Examples

    data(indon)
    ## maybe str(indon) ; plot(indon) ...

[Package DPpackage version 1.1-7.4 Index]