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.
Course of sleep parameters and ESS. (A) Respiratory Disturbance Index (RDI); (B) Lowest oxygen saturation; (C) Oxygen Desaturation Index (ODI); (D) Epworth Sleepiness Scale (ESS). Each colored line represents the course of the parameter in a single subject.
