From: The value of serum Krebs von den lungen-6 as a diagnostic marker in connective tissue disease associated with interstitial lung disease
Groups
KL-6 level (IU/ml)
Median (IQR)
p
CTD-ILD
1004.9 (676.41738.1)
< 0.001a
CTD
468.0 (272.61005.9)
< 0.001b
Pulmonary infection
526.4 (439.7, 670.0)
< 0.001c
Normal
452.5 (338.3, 550.0)
< 0.001d