Fig. 1
From: C-factor: a summary measure for systemic arterial calcifications
Scree plot of the C-factor including calcification volumes of all five vessel beds. The scree plot shows the eigenvalues plotted over the principal components. The dotted blue line represents the threshold of an eigenvalue of 1.0, above which a principal component explains at least as much variance as a single variable put in the principal component analysis. Only the first principal component, the C-factor, is above this threshold