Glycoprotein YKL-40 Levels in Plasma Are Associated with Fibrotic Changes on HRCT in Asbestos-Exposed Subjects

Table 2

Correlations between YKL-40 and other parameters in asbestos-exposed subjects ().

	YKL-40
Age (years)
FVC (% pred)
FEV1 (% pred)
DL,CO (% pred)
IL-6 (pg/ml)	rho = 0.314
CRP (μg/ml)	rho = 0.371
Adipsin (ng/ml)	rho = 0.459
MMP-9 (ng/ml)	rho = 0.243

Pearson’s (r) or Spearman’s (rho) correlation coefficient was used according to the distribution of variables. FVC: forced vital capacity; FEV₁: forced expiratory volume in 1 second; D_L,CO: diffusing capacity for carbon monoxide; IL-6: interleukin 6; CRP: C-reactive protein; MMP-9: matrix metalloproteinase-9.