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Q re apnea stats on ResMed S9

Was wondering how to count apneas/hypopneas on the ResMed S9.

If the numbers are: AHI, 11.2; Total AI, 10.8; and Central AI 9.5, how does that all add up?

Would it mean that if total AI is 10.8 that would mean there is 1.3 Obstructive apneas, with 9.5 central ones?

And if AHI is 11.2 does that mean there were .4 hypopneas in addition to the OAs & CAs?

And if .4 per hour, I guess that is an average/per hour for the entire night?

Thanks again for helping me try to figure out and understand what is going on?

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Permalink Reply by Curt Weaver on September 19, 2011 at 4:50pm

I have the same problem, s9 and mirage quatro and leaking. But I may have solved it last night (fingers crossed) I watched a resmed video on using the mask and they say to press the mask agaist your face first and then pull the headgear on. I did it this way and problem solved....at least for one night.
Maryann said:

I also use a ResMed S9. This is my first machine and I have only had it for about three weeks. I don't seem to be able to get any of my numbers. Is there something that I need that is not included with the machine to get my numbers. I use the Resmed Mirage Quatro full face mask. Some nights will be good but other nights it will leak all night it seems. I clean it every day and make sure my face is super clean before I go to bed. I just can't figure out what I am doing wrong. Night before was very good with very few leaks but last night was terrible. I would appreciate any help with these problems. Thanks.