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.
The amount of change from 1994 to 2002 in the proportion of HIV-1A and D is shown for the four age groups examined. The linear model's 95% confidence intervals are shown with significance indicated (*p < 0.05). The model fitness was examined based on the significance of the residuals. (Color image can be found at www.liebertonline.com/aid).
