When I had my initial sleep study in 2007 my untreated AHI was 72 events per hour. I was prescribed a straight CPAP at a setting of 8 cm with a Resmed Swift and immediately began feeling better. Using Encore Pro, I was able to confirm that my AHI was staying below 5 so all was well
In 2012 I got a replacement PR System One APAP which is set to 6 - 12 cm. I use a Resmed Swift FX and tape my mouth each night.
I recently read my card into Sleepyhead 0.9.8-1 and have over 1000 nights worth of data to look at and was a little surprised to see that over the last year my summary data looked like this:
Obstructive Index 1.90
Hypopnea Index 2.41
Clear Airway Index 1.76
Flow Limitation Index 0.55
RERA Index 1.25
% of time in Cheyne Stokes Respiration 0.56%
Average Pressure 7.97
90% Pressure 10.5
Note: all these numbers are 1 year averages.
Not a terrible AHI (and I still feel OK), but above 5 so I'm wondering what you guys think. I'll be glad to post some graphs; let me know which are most useful.
Ever since getting my initial diagnosis, I've been an advocate for CPAP therapy and am quick to recommend it to friends who seem to have the need. I'd like to get my numbers as good as they can be and would appreciate any thoughts that jump out at anyone.