Tang (2020)
Anticoagulant treatment is associated with decreased mortality in severe coronavirus disease 2019 patients with coagulopathy
https://doi.org/10.1111/JTH.14817
https://onlinelibrary.wiley.com/doi/10.1111/jth.14817
Comorbidities
Any comorbidity (Present vs. Not present)
COVID-19 (death)
Odds ratio: 0.860 (0.540-1.380) Adjusted model. Calculated odds ratio based on data reported in the article.

China

Retrospective cohort study

Medical records

449

Consecutive patients with severe COVID-19

181 females and 268 males. The mean age at disease onset was 65.1 years

Total

28 Day


COVID-19 (death)

134

Died within 28 days


Comorbidities

Any comorbidity

none

Not present

43

177

Present

91

272


Odds ratio

0.860 (0.540-1.380)

No

No

Yes

risk was adjusted for age, sex ratio, treating with heparin, prothrombin time, platelet count and D-dimer


None

Good

Yes