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Table 4 The serum KL-6 level from the four different groups of patients

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

  1. CTD Connective tissue disease, CTD-ILD Interstitial lung disease associated with connective tissue disease. Note: acomparing among 4 groups; b-deach compared to CTD-ILD group