Forced expiratory volume in children

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

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)
#>       Age              FEV              Ht         Gender    Smoke    
#>  Min.   : 3.000   Min.   :0.791   Min.   :117.0   Girl:318   No :589  
#>  1st Qu.: 8.000   1st Qu.:1.981   1st Qu.:145.0   Boy :336   Yes: 65  
#>  Median :10.000   Median :2.547   Median :156.0                       
#>  Mean   : 9.931   Mean   :2.637   Mean   :155.3                       
#>  3rd Qu.:12.000   3rd Qu.:3.119   3rd Qu.:166.0                       
#>  Max.   :19.000   Max.   :5.793   Max.   :188.0