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.
Mean phosphorus z scores and median plasma FGF23 concentrations according to estimated GFR at 10-ml/min per 1.73 m2 intervals in children with CKD. Phosphorus z score is expressed in SD units. *P<0.05 versus the reference GFR group of ≥70 ml/min per 1.73 m2 using Kruskal–Wallis ANOVA; **P<0.001 versus corresponding mean for age of a healthy control population (31).
