Fig. 7. VOC alterations in relation to cirrhosis severity.

Projected data points of the first two components of a PCA calculated using breath variables with a BH adjusted p<0.1. PC1 explains 10.1% and PC2 4.4% of variance and shows that separation of cirrhotic patients based on their CP score. About 50% of the patients with a CP=5 cluster with controls. BH, Benjamin-Hochberg; CP, Child-Pugh; PCA, principal component analysis; VOC, volatile organic compound.