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.
Decreasing species diversity as caries severity increased. The decrease in severity was modeled using PROC MIXED analysis and is shown as a dotted line (estimate, −0.13; P < 0.00002). Mean Shannon diversity indices at the species level are shown with 95% confidence intervals for each level of caries severity. Samples that were statistically different according to post hoc t tests and paired t tests are connected by light gray lines.
