Of all the numbers on your sleep apnea test report, the AHI is the most important. On some sleep study reports, you will see the terms "RDI" or "REI" in place of AHI. But what does AHI mean and what's the difference between AHI, RDI, and REI?
Of the three, AHI as it is the most commonly used term and is an acronym for "apnea-hypopnea index." To understand the term, we first need to define what apneas and hypopneas are.
Apneas are a type of...