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.
Percentages of male subjects in each age class that belong to the AMU or are resident males in an OMU. Box plots show medians, IQRs, and ranges over the 3 years of the study. N(AMU) and N(OMU) are sample sizes of males in the AMU and OMUs, respectively. The figure is for illustrative purposes only, since some males were represented in more than 1 year.
