Package rspiro implements multiple spirometry equations: currently the GLI-2012 (Quanjer) and NHANES III (Hankinson), with potentially more to be added later.
It offers user-friendly functions to calculate predicted or LLN (Lower Limit of Normal) values given demographic data, or to convert absolute spirometry values to percent (%) predicted or z-scores.
Installation
Open R, and give:
devtools::install_github("thlytras/rspiro")If you do not have the package “devtools”, first install it from CRAN with:
install.packages("devtools")Acknowledgement
This package uses the lookup table included with the R code provided by the GLI initiative, to whom I’m grateful for their work.
Disclaimer
Although every effort has been made to verify correct operation of this software, I cannot accept any liability arising from its use. The software is provided “as is”, without any express or implied warranty, and no implication of fitness for a particular use.
If you find any bugs, please open an issue or, alternatively, send me e-mail to thlytras@gmail.com