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.
Follow-up visits per child per year to the metabolic clinic, by age at the visit. Error bars represent 95% confidence intervals using the normal approximation to the Poisson distribution. One child may contribute to multiple age groups due to longitudinal follow-up
