Fig. 3
From: Analytical performance of Envisia: a genomic classifier for usual interstitial pneumonia
Proportion of HBB to total reads vs. proportion of blood contamination. Each boxplot represents the HBB count proportion for in vitro samples mixed with given proportion of blood. Vertical dashed line represents the level of blood (22%) that can cause a UIP sample to classify as non-UIP. Horizontal dashed line represents the proportion of HBB to total read counts for TBB samples mixed with 22% blood, which is 7%. The observed maximum value of blood content in TBB samples is on the order of < 1%