Fig. 1From: Heterogeneous pattern of differences in respiratory parameters between elderly with either good or poor FEV1Median “functional age” of UED (white) and LED (grey) subjects for selected parameters; whiskers indicate lower and upper quartiles, the dashed black line indicates the mean chronological age of all subjects. Please note that lower “functional age” is associated with, for example, higher values of FEV1%predBack to article page