fev {doBy}

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)