Author (year): Klok (2020)
Title: Confirmation of the high cumulative incidence of thrombotic complications in critically ill ICU patients with COVID-19: An updated analysis
Article ID (DOI or PMID or other): https://doi.org/10.1016/j.thromres.2020.04.041
URL: https://www.thrombosisresearch.com/article/S0049-3848(20)30157-2/pdf

Risk factor category: Treatment
Risk factor description: Concomitant medication (Treated with anticoagulats vs. Not received)
Outcome: COVID-19 (death)
Result: Hazard ratio: 0.790 (0.350-1.800) Univariate analysis