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[Diagnosis] Number of AHI shown in report
#1
Number of AHI shown in report
My report shows AHI the like of  2.5,  3.5.,  1.5.,  5.5
Can anyone please explain how one can have an AHI which is not a whole number?
Boomerang
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#2
RE: Number of AHI shown in report
G'day boomerang. Welcome to Apnea Board.

The AHI (and the other indices AI, CAI, HI) are all averages - take the total number of events, divided by the number of hours of sleep. So if you had 125 events over 7 hours the AHI would be 125 / 7 = 17.86

I may be telling you something you already know, but the main indices used are:

- AI: Apnea Index
- HI: Hypopnea index
- AHI: Apnea / hypopnea index (= AI + HI)
- CAI: Central apnea index.
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