o:3007 Risk factors and incidence of deep venous thrombosis in non-severe coronavirus disease-19 patients en BACKGROUND: The coronavirus disease (COVID-19) is characterized by a high prevalence of deep vein thrombosis (DVT), particularly in its severe form, but the incidence of DVT and risk factors for DVT in non-severe patients are still unknown. METHODS: The study enrolled 118 patients with non-severe COVID-19 infection which did not required hospital admittance. A duplex ultrasound and laboratory test were performed in all the patients after the first negative polymerase chain reaction SARS-CoV-2 test. RESULTS: DVT was identified in 50 (42.4%) patients with a median age of 48 years (interquartile range 30–85 years). Symptomatic DVT was present in 40 (80%) patients and was commonly seen in the Class I calf vein thrombosis (38 patients, 76%) (χ2 = 51.71, p < 0.001). The most significant risk factors for DVT were as follows: Increased C-reactive protein (p = 0.000), fibrinogen (p = 0.000), low lymphocyte count (p = 0.002), obesity (p = 0.017), and neutrophil count (p = 0.042). The multivariable logistic regression analysis revealed that a D-dimer cutoff point of 1253.5 µg/L showed a sensitivity of 92% and a specificity of 71%. CONCLUSION: Patients with increased inflammatory markers and obese patients after a non-severe COVID-19 infection should have an ultrasound examination to ensure early diagnosis of DVT and to prevent the occurrence of any complications. Key words: coronavirus disease-19, D-dimer, deep vein thrombosis, doppler ultrasound scanning 91552100 126202889 1552101 1857-9655 1552099 10.3889/oamjms.2021.7455 2023-10-16T12:00:31.316Z 44 yes 46 Srđan Babić 19073383 2021 46 Aleksandar Babić 104913673 2021 46 Milica Stojičić 105296393 0000-0002-9482-1082 2021 46 Milena Genčić 105297673 0000-0003-2970-3204 2021 46 Slobodan Tanasković 19201127 0000-0003-4216-6693 2021 46 Dragana Radoičić 105300489 0000-0003-0866-4111 2021 46 Predrag Gajin 19182183 0000-0001-9707-8805 2021 46 Igor Atanasijević 29986919 0000-0002-8460-1975 2021 46 Nenad Ilijevski 12544871 0000-0002-8200-9556 2021 application/pdf 1106302 https://unilib.phaidrabg.rs/o:3007 no yes 17 70 616.14-007.64:616.98 92000001 71A11 Open access Macedonian journal of medical sciences 9 B 1446 1452 2021