RT Journal Article SR Electronic T1 Circulating Mitochondrial DNA is an Early Indicator of Severe Illness and Mortality from COVID-19 JF bioRxiv FD Cold Spring Harbor Laboratory SP 2020.07.30.227553 DO 10.1101/2020.07.30.227553 A1 Davide Scozzi A1 Marlene Cano A1 Lina Ma A1 Dequan Zhou A1 Ji Hong Zhu A1 Jane A O’Halloran A1 Charles Goss A1 Adriana M. Rauseo A1 Zhiyi Liu A1 Valentina Peritore A1 Monica Rocco A1 Alberto Ricci A1 Rachele Amodeo A1 Laura Aimati A1 Mohsen Ibrahim A1 Ramsey Hachem A1 Daniel Kreisel A1 Philip A. Mudd A1 Hrishikesh S. Kulkarni A1 Andrew E. Gelman YR 2020 UL http://biorxiv.org/content/early/2020/07/30/2020.07.30.227553.abstract AB Mitochondrial DNA (MT-DNA) are intrinsically inflammatory nucleic acids released by damaged solid organs. Whether the appearance of cell-free MT-DNA is linked to poor COVID-19 outcomes remains undetermined. Here, we quantified circulating MT-DNA in prospectively collected, cell-free plasma samples from 97 subjects with COVID-19 at the time of hospital presentation. Circulating MT-DNA were sharply elevated in patients who eventually died, required ICU admission or intubation. Multivariate regression analysis revealed that high circulating MT-DNA levels is an independent risk factor for all of these outcomes after adjusting for age, sex and comorbidities. Additionally, we found that circulating MT-DNA has a similar or superior area-under-the curve when compared to clinically established measures of systemic inflammation, as well as emerging markers currently of interest as investigational targets for COVID-19 therapy. These results show that high circulating MT-DNA levels is a potential indicator for poor COVID-19 outcomes.Competing Interest StatementThe authors have declared no competing interest.