gamlss.data (version 5.1-4)

lungFunction: The lung function data

Description

3164 male observations of lung function data previously analysed by Stanojevic et al. 2008 and Hossain et al. 2016.

Usage

data("lungFunction")

Format

A data frame with 3164 observations on the following 3 variables.

slf

the spirometric lung function, FEV_1 / FVC, which is an established index for diagnosing airway obstruction (males only)

height

the height in centimetres

age

the age

Details

The response variable is slf=FEV_1/FVC and the explanatory variable is height. The response variable slf is a ratio of forced expiratory volume in 1 second, FEV_1, to forced vital capacity, FVC. Spirometric lung function slf is an established index for diagnosing airway obstruction, e.g. Quanjer et al. 2010. The purpose here is to create centile curves of slf against height. More details about the analysis using GAMLSS of the FEV_1/FVC data can be found in Hossain et al. 2016.

References

Hossain, A., Rigby, R.A., Stasinopoulos, D.M. and Enea, M. (2016), Centile estimation for a proportion response variable, Statistics in Medicine, 6, Vol. 35, pp 895-904,

Quanjer, P.H., Stanojevic, S. and Stocks, J. and Hall, G.L. and Prasad, K.V.V. and Cole, T.J. and Rosenthal, M. and Perez-Padilla, R. and Hankinson, J.L. and Falaschetti, E. and others, (2010) Changes in the FEV1 /FVC ratio during childhood and adolescence: an intercontinental study, European Respiratory Journal, 6, Vol 36, page 1391, European Respiratory Society.

Stanojevic, S., Wade, A., Stocks, J., Hankinson, J., Coates, A. L., Pan, H., Rosenthal, M., Corey, M., Lebecque, P., and Cole, T. J. (2008), Reference ranges for spirometry across all ages: a new approach, American Journal of Respiratory and Critical Care Medicine, Vol 177, pp. 253-260.

Examples

# NOT RUN {
data(lungFunction)
plot(lungFunction)
# }