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.
Scatterplot of paired measurements of antifactor Xa (anti-Xa) and activated partial thromboplastin time (aPTT) assays. In our institutional evaluation (n = 342), aPTT and anti-Xa results demonstrated low correlation based on linear regression analysis (r = 0.65, R2 = 0.372).
