Fig. 1
From: Cardiac biomarkers of prognostic importance in chronic obstructive pulmonary disease
Prevalence of and mortality by cardiac biomarker categories based on hs-cTnI and/or ischemic ECG abnormalities (I-ECG). The prevalence of cardiac biomarker categories is illustrated by Venn diagrams in individuals with a COPD (n = 601) and b normal lung function (NLF) (n = 755), respectively. The cumulative mortality by cardiac biomarker category is illustrated by bar charts among individuals with c COPD and d NLF. (I-ECG includes Major Q/QS wave, major isolated ST-T abnormality, Minor Q wave plus major ST-T and minor isolated Q wave)