pft: Pulmonary Function Test Interpretation per ERS/ATS 2022

Computes predicted values and lower/upper limits of normal for pulmonary function tests according to American Thoracic Society ('ATS') and European Respiratory Society ('ERS') reference standards. Supports spirometry (Global Lung Function Initiative 'GLI' 2012, Quanjer et al. (2012) <doi:10.1183/09031936.00080312>; and the race-neutral 'GLI' 2022 / 'GLI Global' equations, Bowerman et al. (2023) <doi:10.1164/rccm.202205-0963OC>), static lung volumes ('GLI' 2021, Hall et al. (2021) <doi:10.1183/13993003.00289-2020>), and the carbon monoxide transfer factor / diffusion capacity ('GLI' 2017, Stanojevic et al. (2017) <doi:10.1183/13993003.00010-2017>, including the 2020 author correction <doi:10.1183/13993003.50010-2017>). Also assigns interpretive pattern labels (Normal, Non-specific, Obstructed, Restricted, Mixed) from spirometry and lung-volume measurements following the 'ERS'/'ATS' 2022 interpretation algorithm, Stanojevic et al. (2022) <doi:10.1183/13993003.01499-2021>.

Version:	1.0.1
Depends:	R (≥ 4.1)
Imports:	rlang, tibble
Suggests:	broom, covr, dplyr, ggplot2, knitr, rmarkdown, testthat (≥ 3.0.0)
Published:	2026-07-11
DOI:	10.32614/CRAN.package.pft
Author:	Pat Johnson [aut, cre], Scott Helgeson [aut], Zach Quicksall [ctb], Jairo Pena [ctb]
Maintainer:	Pat Johnson <johnson.pat at mayo.edu>
BugReports:	https://github.com/overdodactyl/pft/issues
License:	MIT + file LICENSE
URL:	https://github.com/overdodactyl/pft
NeedsCompilation:	no
Citation:	pft citation info
Materials:	README, NEWS
CRAN checks:	pft results

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