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Table 1 Distribution of confidence levels of IPF diagnosis

From: Clinical characteristics of patients with familial idiopathic pulmonary fibrosis (f-IPF)

Confidence level of IPF diagnosis: f-IPF index patients (n) s-IPF patients (n) all IPF patients (n)
definitive IPF 24 100 124
probable IPF 1 36 37
possible IPF 3 3 6
Information unknown 0 8 8
Total 28 147 161