R: Forced expiratory volume in children

fev {doBy} | R Documentation

## Forced expiratory volume in children

### Description

Dataset to examine if respiratory function in children was influenced by smoking.

### Usage

    fev

### Format

A data frame with 654 observations on the following 5 variables.

`Age`

  Age in years.

`FEV`

  Forced expiratory volume in liters per second.

`Ht`

  Height in centimeters.

`Gender`

  Gender.

`Smoke`

  Smoking status.

### References

I. Tager and S. Weiss and B. Rosner and F. Speizer (1979). Effect of Parental Cigarette Smoking on the Pulmonary Function of Children. American Journal of Epidemiology. 110:15-26

### Examples

    data(fev)
    summary(fev)

[Package doBy version 4.6.6 Index]