Figure 9. SNO-SP-D levels in 98 samples from the ECLIPSE cohort. (A) SNO-SP-D levels were measured in serum samples by sandwich ELISA. CV:
Inter-assay coefficient of variation. Low/high: Samples chosen for their low/high SP-D levels according to previous measurements. Values were then
arranged by increasing age (B), GOLD stages (C), increasing pack years (D), increasing FEV1 (E), increasing FEV1/FVC (F), BMI (G), increasing
FracVol (H) and emphysema scores (I).