Figure 2From: Familial and sporadic idiopathic pulmonary fibrosis: making the diagnosis from peripheral bloodPrincipal component analysis of select samples. Data is filtered by the Coefficient of Variation. Samples are plotted by expression of the first two Principal Components. Key: mild disease (blue); severe disease (red); training set (open circles), validation set (closed squares). (A) Severity of disease is assessed by FVC% (see text): identified 31 cases with mild disease and 10 cases with severe disease. (B) Severity of disease is assessed by DLCO%: 14 cases of mild disease versus 18 cases of severe disease.Back to article page