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Table 5 Comparison of the baseline data from German, Finnish and Danish cohorts according to the published data

From: Re-evaluation of diagnostic parameters is crucial for obtaining accurate data on idiopathic pulmonary fibrosis

  Insights N = 502 FinnishIPF N = 111 Danish ILD N = 121
Mean age (years) 68.7 73.5 67.4
Male (%) 69 60 77
FVC % pred. 72.2 80.4 72
DLCO % pred. 35.5 57.3 42.3
Onset of symptom-Diagnosis (years)   1.9 2.3
Smokers current (ex-never) % 1 (60–39) 8 (46–44) 81a
  1. aCurrent and ex-smokers