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.
Kaplan-Meier estimated cumulative hazard of venous thromboembolism by treatment assignment, during the intervention and post-intervention periods.
The dashed vertical lines correspond to the dates of censoring of 20, 40, 60, 80 and 100% of all women.
