Fig. 8
From: The use of exhaled air analysis in discriminating interstitial lung diseases: a pilot study
Relative concentrations of individual VOCs reported in literature to differ in the breath of IPF patients and healthy controls. The displayed boxplots represent the following volatiles: A Isoprene, B p-Cymene, C Ethylbenzene, D m- and/or p-Xylene, E o-Xylene. In each plot, the p-value is displayed, where a p-value < 0.05 is considered significant. m-, p-, and o-xylene are hard to distinguish from ethylbenzene, leading to possible misidentification, thus their significances are also reported