My sleep doc advised me that an AHI below 10 is considered a successful therapy. My machine manufacturer in its literature also states that an AHI below 10 is successful treatment.
My machine manufacturer defines an apnea as a 10% or less open airway for 10 seconds, and a hypopnea as an airway open 50% or less for 10 seconds.
Do all machine manufacturers define apneas and hypopneas in this way? I notice that my machine, in its clinician's menu, will let you set a different AHI definition, i.e. a 30% airway closure, rather than 50%, for a hypopnea event.
Is my machine delivering the same AHI readings as other machines, and if not, would my AHI readings be higher with other machines, assuming that my machine defines hypopnea at a 50% or greater closure for 10 seconds?