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.
SD: standard deviation, VKORC1: Vitamin K epoxide reductase genotype, a: one-way analysis of variance, b: Kruskal-Wallis Test, c: Chisquare test for sex, ** p≤0.001.
