Fig 4. Ability of each biomarker to predict the short-term progression of IPF.

Correlations between monomeric periostin, total periostin, KL-6, SP-D or LDH and short-term change of %VC (A) or %D_{L, CO} (B) in IPF patients (n = 44 for %VC and 39 for %D_{L, CO}).