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Incidence of thrombotic complications in hospitalised and non‐hospitalised patients after COVID‐19 diagnosis
Author(s) -
Tholin Birgitte,
Ghanima Waleed,
Einvik Gunnar,
Aarli Bernt,
Brønstad Eivind,
Skjønsberg Ole H.,
Stavem Knut
Publication year - 2021
Publication title -
british journal of haematology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.907
H-Index - 186
eISSN - 1365-2141
pISSN - 0007-1048
DOI - 10.1111/bjh.17522
Subject(s) - medicine , incidence (geometry) , confidence interval , covid-19 , prospective cohort study , cohort , cohort study , pediatrics , disease , infectious disease (medical specialty) , physics , optics
Summary Infection with coronavirus disease‐2019 (COVID‐19) may predispose for venous thromboembolism (VTE). There is wide variation in reported incidence rates of VTE in COVID‐19, ranging from 3% to 85%. Therefore, the true incidence of thrombotic complications in COVID‐19 is uncertain. Here we present data on the incidence of VTE in both hospitalised and non‐hospitalised patients from two ongoing prospective cohort studies. The incidence of VTE after diagnosis of COVID‐19 was 3·9% [95% confidence interval (CI): 2·1–7·2] during hospitalisation, 0·9% (95% CI: 0·2–3·1) in the three months after discharge and 0·2% (95% CI: 0·00–1·25) in non‐hospitalised patients, suggesting an incidence rate at the lower end of that in previous reports.