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.
Derivation of the nested case-control (n = 44) and prospective observational cohort (n = 338). The diagram for the nested case-control cohort is adapted from reference 11. AKI, acute kidney injury; eGFR, estimated GFR; POD, postoperative day; OR, operating room.
