D‐dimer levels is associated with severe COVID‐19 infections: A meta‐analysis

Objective The ongoing pandemic of COVID‐19 caused by the novel coronavirus Syndrome‐Coronavirus‐2 (SARS‐CoV‐2) is an emerging, rapidly evolving situation. Excluded typical manifestation of pneumonia and acute respiratory symptoms, COVID‐19 patients also have abnormal D‐dimer concentration in the serum, but the results are controversial. Method A meta‐analysis first aims to explored the connection between D‐dimer concentration and COVID‐19 patients. Results Our results found a significant relationship between D‐dimer and COVID‐19, with a pooled OR of 1.90 (95% CI: 1.32‐2.48; P