Fig. 2.

Lung function decline in individuals with supernormal lung function in the general population. Based on the Copenhagen General Population Study. Linear mixed-effects model with random-intercepts and -slopes and unstructured covariance matrices. Analyses were multivariable adjusted for age, sex, body mass index, smoking status, cumulative tobacco consumption (pack-years), socioeconomic status, asthma, and treatment with airway medication. FEV₁=forced expiratory volume in 1 sec. FVC=forced vital capacity.