Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2022 Nov 2;119(47):e2213361119. doi: 10.1073/pnas.2213361119

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

Copyright © 2022 the Author(s). Published by PNAS.

This open access article is distributed under Creative Commons Attribution-NonCommercial-NoDerivatives License 4.0 (CC BY-NC-ND).

PMC Copyright notice

Fig. 2. — Anti-PF4 antibodies and prior heparin treatment in patients with COVID-19. (A) Levels of anti-PF4 antibodies in hospitalized patients with COVID-19 divided according to prior treatment with intravenous (i.v.) UFH. (B) Linear correlation between anti-PF4 antibody levels and total UFH dose (units) received by the intravenous route. (C) Levels of anti-PF4 antibodies in hospitalized patients with COVID-19 divided according to prior treatment with UFH by any route. Statistical differences in A and C were evaluated by unpaired, two-tailed t tests. (D) Linear correlation between anti–PF4 antibody levels and total UFH dose (units) received by any route. Statistical associations in B and D were evaluated using linear regression. Pearson’s correlations and P values are shown along with the fitted regression lines.