rspiro

Implementation of various spirometry equations in R, currently the GLI-2012 (Global Lung Initiative; Quanjer et al. 2012 ), the race-neutral GLI global 2022 (Global Lung Initiative; Bowerman et al. 2023 ), the NHANES3 (National Health and Nutrition Examination Survey; Hankinson et al. 1999 ) and the JRS 2014 (Japanese Respiratory Society; Kubota et al. 2014 ) equations. Also the GLI-2017 diffusing capacity equations are implemented. Contains user-friendly functions to calculate predicted and LLN (Lower Limit of Normal) values for different spirometric parameters such as FEV1 (Forced Expiratory Volume in 1 second), FVC (Forced Vital Capacity), etc, and to convert absolute spirometry measurements to percent (%) predicted and z-scores.

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