FIGURE 3.
Histograms of age from NHANES data cycles 2005–2010 showing the shift in distribution with unweighted observations (left) and when sampling weights are applied (right).
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.