Prediction of pulmonary restriction from forced vital capacity in elderly is similar using GLI and ERS equations.

Introduction: The prevalence of pulmonary restriction increases in the elderly and detection could be challenging due to the difficulty in measuring lung volumes in older patients. The recently published Global Lung Function Initiative (GLI) equations were found to predict better restriction in middle-aged patients compared to ERS'93 norms. However, the ability of the GLI equations to detect pulmonary restriction in older patients has not been investigated.