Hello Guest, Welcome to Apnea Board !
As a guest, you are limited to certain areas of the board and there are some features you can't use.
To post a message, you must create a free account using a valid email address.

or Create an Account

New Posts   Today's Posts

New and Trying to Understand Scores
Hey all, first I'm really grateful for the forum. It's helped already. I'm newly diagnosed with mild OSA and I'm in my first week with my APAP. I was given a Respironics Dream Station with built in Humidifier.

For the last five nights I have been tracking my AHI scores just trying to understand everything. My sleep study showed a 13 AHI with a dip to 86% O2 desaturation. For the first night on my APAP I was down to a 5.4 which I thought was great but now I'm climbing back up with scores in the 8 - 12 range. Generally speaking my hypoapneas are much higher 40 - 50 per night and my OAs are 10 or more and CA ("clear") in the same range.

So two real questions:

1. Is it fairly normal to have hypoapnea events in the 50s?
2. My first night was good and now I'm back up closer to my original score. Should I expect a more gradual improvement? I don't want to mess with pressure just yet in case I need more time to adjust.

Overal my mask fit is good at between 97% and 100% (I have a full face mask).

Thanks for any experience or help understand the breakdown of scores. I'm not sure that it was good that I could get and app and track the actual HA v OA v CA. LOL Now I'm watching it like a hawk.

This world is very new to me and I'm definitely starting to realize that this diagnosis is a bit more complex than "yeah you just have to wear a thing at night."
Post Reply Post Reply
Hi Dbneidert,


I would recommend that you download SleepyHead for a better picture of your sleep sessions. The numbers are used as a gauge point but don't give the "why" you're at a certain value. SleepyHead will provide more detail to help.

Here is the link to the latest (This link is the same as at the top of the page.):

Good luck!

Useful Links -or- When All Else Fails:
Robysue's Beginner's Guide to Sleepyhead
Apnea Helpful Tips
Post Reply Post Reply
(05-14-2016, 11:15 AM)Dbneidert Wrote: My sleep study showed a 13 AHI with a dip to 86% O2 desaturation.
A desat, of 86% should be a concern and needs to be treated
(05-14-2016, 11:15 AM)Dbneidert Wrote: Generally speaking my hypoapneas are much higher 40 - 50 per night and my OAs are 10 or more and CA ("clear") in the same range.

1. Is it fairly normal to have hypopnea events in the 50s?

Hypopneas do cause desaturation in some people.
40 -50 is considered severe

(05-14-2016, 11:15 AM)Dbneidert Wrote: I don't want to mess with pressure just yet in case I need more time to adjust.

Caution in making adjustment is wise, some people make too many random adjustments which makes it harder to evaluate the trends. In my experience you need 4 days to week on a setting to have a significant sample. If it was me I would inform my doctor of the high number of hypopneas and get his advice on raising the low end pressure.
Once you have sleepyhead running an in place and can post the daily graphs, many of the folks in the forum can give you more specific advice on the data and trends: sleep-well:

2004-Bon Jovi
it'll take more than a doctor to prescribe a remedy

Observations and recommendations communicated here are the perceptions of the writer and should not be misconstrued as medical advice.
Post Reply Post Reply

We really do need the SleepyHead data to say anything definitive.

How bad 50 hypopneas is depends on how long you were sleeping. If that is over 10 hours, and nothing else happened, that would be an AHI of 5.0 so within the 'treated' range. I would not consider that as representing a restful night's sleep however.

I also had my pressure needs rise after a few weeks. This might mean your body/mind is adjusting to the pressure which results in deeper sleep and more apnea related events. Or it might mean something else. I only know what happened to me.

Your range of 5-8 seems low to me, at least on the 5 side. I'd have trouble breathing like that. I'd not be surprised if you get a recommendation to raise that gradually. I higher pressure should result in fewer events. Should. Do you use Flex? You might want to turn that off/down at these low pressures.


Post Reply Post Reply
Hi Dbneidert,
WELCOME! to the forum.!
Hang in there for more answers to your questions and much success to you with your CPAP therapy.
Post Reply Post Reply
G'day Dbneidert, welcome to the forum.

I'll second what has been said above - SleepyHead software will give you some very detailed information on what is happening through the night. However, it is normal to take a while to get used to the therapy and you probably shouldn't start playing with any changes until you have a solid baseline of information.

Also as mentioned above, the number of events per night is not really a meaningful measure as everybody sleeps for a different amount of time. We hoseheads talk in terms of events per hour, which gives a uniform basis for comparison. All the indices (AHI, AI, HI etc) are all the number of events divided by the number of hours of sleep.
Apnea Board Moderator


Post Reply Post Reply

I too was chasing the numbers but I am starting to ignore them (Well not really ). I am changing the COMFORT settings.

EPR - From off to 2
Min pressure from 4 to 5. For me that was a comfort thing.
Ramp off. Why get a late start.
Sit back and enjoy the ride.

From a comfort stand point the light came on, or from a sleep stand point the lights went out.

Ureaka, 8 hours of sleep or rest and the numbers followed.
Best night ever.
Dont-know  I am an accountant so any advice given here is not medical. If I give any financial advice, you can take it to the bank. However, you will have a hard time cashing it in. Okay
Post Reply Post Reply

Possibly Related Threads...
Thread Author Replies Views Last Post
  help to understand sleepyhead results Apnea Infant 27 1,861 10-29-2017, 05:46 AM
Last Post: Apnea Infant
  Help me understand CA taha 32 959 10-19-2017, 01:30 AM
Last Post: Spy Car
  Help me understand how humidifier levels are managed by the xPAP DanPrado 18 965 09-19-2017, 10:33 PM
Last Post: Wolfram
  First Try Loading Slphd Graph-Help to Understand? bluemom51 0 115 08-29-2017, 06:49 PM
Last Post: bluemom51
  Oximetry Report- Can You Help Me Understand? nico08 12 618 08-08-2017, 10:33 PM
Last Post: quiescence at last
  Questions on CPAP masks & masks scores djfro 4 293 07-31-2017, 09:18 PM
Last Post: djfro
  Help me understand what the bleep is going on please CPAPreturnee 3 290 07-04-2017, 12:54 PM
Last Post: PaytonA

Forum Jump:

New Posts   Today's Posts

About Apnea Board

Apnea Board is an educational web site designed to empower Sleep Apnea patients.

For any more information, please use our contact form.