Belo, JPalmeiro, TCaires, IPapoila, ALAlves, MCarreiro-Martins, PBotelho, MANeuparth, N2018-08-292018-08-292018Multidiscip Respir Med. 2018 Jan 9;13:4http://hdl.handle.net/10400.17/3050Spirometry is the single most important test for the evaluation of respiratory function. The results are interpreted by comparing measured data with predicted values previously obtained from a reference population. Reference equations for spirometry have been discussed previously. The aim of this study was to compare reference values based on National Health and Nutrition Assessment Survey (NHANES III), European Community of Steel and Coal (ECSC), and Global Lung Initiative (GLI) equations in an elderly sample population.engElderlyECSCGLINHANES IIIReference eqsSpirometryHDE ALERjournal article10.1186/s40248-017-0112-5