Figure 3.
ROC curve for identifying optimal vitamin D cutoff point in predicting high disease activity (J = 12.3 ng/mL).
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.