Test Results

I had a in-home sleep study done at my own expense because of continuous feelings if deep fatigue. They sent me the results. They don't mean much unless I understand them. Can someone interpret the numbers and do I need CPAP? Thanks.

recording time: 281 min
total number of apneas: 2
average apnea (sec): 13
apnea index: 0.5
central apneas: 0
number of hypopneas: 65
average hypopnea (sec): 18
hypopnea index: 16.2
central apnea index: 0
RDI (AHI) max. dens. index (>10 min): 116.92
RDI (AHI): 16.7

snoring index: 308
primary vibration: 112 Hz
palatal frequency: 109 Hz
Snoring distribution by type: 1 - 73%, 2 - 21%, 3 - 3%, 4 - 0%, WL - 3%
max relative loudness - 30dB
average relative loudness - 22 dB

oximetry baseline - 97%
mean O2 - 94%
high O2 - 97%
lowest O2 - 90%
number of desaturations: 7
% time under 88%: 0
SpO2 vs. % time: 100-95 - 27%, 90-94 - 73%

mean pulse rate: 64

See Robysue's blog here to see if it helps you understand what you are seeing.
http://adventures-in-hosehead-land.blog ... -test.html

debbodun wrote:RDI (AHI): 16.7

Based on this above...yes, you most likely need cpap.
And this

debbodun wrote:number of hypopneas: 65

in 281 minutes would give approx 4 1/2 hours of sleep assuming you were asleep most of the recording time and this would give hourly hyponea index (average) of 14.4 and that alone buys you a "mild" sleep apnea diagnosis.

AHI (Apnea Hypopnea Index) is the number of apneas and hypopneas per hour. Or an index for sleep apnea. 5-20 mild, 21-50 moderate, above 50 severe.
wiki/index.php/Category:CPAP_Definitions
This study incorporates RDI into the AHI
http://en.wikipedia.org/wiki/Respirator ... ance_index

AHI/RAI Scale is a measurement of both the Apnea/Hypopnea Index (QHI) and the Respiratory Arousal Index. If a person has less than 5 events per hour then that person's AHI/RAI would be 0 and that person would not have apnea. 5 -15 events/hour = (mild); 15-30 events/hour = (moderate); >30 events/hour = (severe).

Mild to moderate depending on which definition is used. Still diagnostic either way though.

Thanks for the quick reply.

Actually, I'm not sure I agree, and I'd want to do two things (at least) before investing in Cpap either for now or life.

The first would be to have my MD check me for regular bloodwork, etc., including thyroid parameters.

The second would be (if there's a way to swing it) to test again at home, but making as sure as possible that you don't sleep on your back at all (using whatever way works - tennnis balls on your jammies, foam wedge behind you, etc.) and see if you have any meaningful results. Positional apnea is common in people who sleep on their backs, but otherwise don't have a problem and so just deal with the position, rather than Cpap.