16% of COVID-19 patients in NYC hospital had blood clots, study findsOf the 3,334 consecutive patients hospitalized with COVID-19 at a New York City hospital, 553 (16%) had thrombosis (blood clots), according to a research letter published yesterday in JAMA.Researchers at New York University Langone Health who analyzed the data of coronavirus patients hospitalized from Mar 1 to Apr 17 characterized the blood clots as deep vein thrombosis (DVT), pulmonary embolism (PE) and heart attack, ischemic stroke, and another systemic blood clot.Among the 533 patients with blood clots (some had more than one type), 207 (62%) were venous (3.9% DVT, 3.2% PE), and 365 (11.1%) involved the arteries (8.9% heart attack, 1.6% ischemic stroke, and 1.0%