R: Schizophrenia Data

schizophrenia2 {HSAUR} | R Documentation

## Schizophrenia Data

### Description

Though disorder and early onset of schizophrenia.

### Usage

    data("schizophrenia2")

### Format

A data frame with 220 observations on the following 4 variables.

`subject`

  the patient ID, a factor with levels `1` to `44`.

`onset`

  the time of onset of the disease, a factor with levels `< 20 yrs` and `> 20 yrs`.

`disorder`

  whether thought disorder was `absent` or `present`, the response variable.

`month`

  month after hospitalisation.

### Details

The data were collected in a follow-up study of women patients with schizophrenia. The binary response recorded at 0, 2, 6, 8 and 10 months after hospitalisation was thought disorder (absent or present). The single covariate is the factor indicating whether a patient had suffered early or late onset of her condition (age of onset less than 20 years or age of onset 20 years or above). The question of interest is whether the course of the illness differs between patients with early and late onset?

### Source

Davis (2002), Statistical Methods for the Analysis of Repeated Measurements, Springer, New York.

### Examples

      data("schizophrenia2", package = "HSAUR")
      mosaicplot(xtabs( ~ onset + month + disorder, data = schizophrenia2))

[Package HSAUR version 1.3-9 Index]