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Difference in AHI Number
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Difference in AHI Number
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mawaw1992
Posts: 201 Threads: 26 Joined: Dec 2020
Machine: Resmed AirCurve 10 VAuto
01-11-2021, 12:33 PM
Difference in AHI Number
On my wife's Resmed Autosense 10 Autoset this morning it showed she had a 2.2 AHI but when I downloaded her data into Oscar it showed it at 1.5. Why the difference? First time I have seen this happen.
Crimson Nape
Wiki Editor 
Posts: 15,377 Threads: 200 Joined: Oct 2014
Machine: AirCurve 10 Vauto
01-11-2021, 12:36 PM
RE: Difference in AHI Number
Resmed's round the time, OSCAR doesn't. If she had several breaks during the night that could account for the difference.
Crimson Nape
Apnea Board Moderator Project Manager for OSCAR - Open Source CPAP Analysis Reporter www.ApneaBoard.com ___________________________________ Useful Links -or- When All Else Fails: The Guide to Understanding OSCAR OSCAR Chart Organization Attaching Images and Files on Apnea Board Apnea Helpful Tips INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
jaswilliams
Wiki Editor
Posts: 2,617 Threads: 6 Joined: Sep 2017
Machine: Resmed S9 Vpap Adapt SV (AutoASV)
01-11-2021, 04:41 PM
RE: Difference in AHI Number
Has there been a power cut the summary on an Autoset will default to the last 30 days and need to bet back to one day
mawaw1992
Posts: 201 Threads: 26 Joined: Dec 2020
Machine: Resmed AirCurve 10 VAuto
Crimson Nape
Wiki Editor
Posts: 15,377 Threads: 200 Joined: Oct 2014
Machine: AirCurve 10 Vauto
01-11-2021, 06:46 PM
RE: Difference in AHI Number
Jaswilliams makes a good point. Have you checked the reporting period that your Resmed is using?
Crimson Nape
Apnea Board Moderator Project Manager for OSCAR - Open Source CPAP Analysis Reporter www.ApneaBoard.com ___________________________________ Useful Links -or- When All Else Fails: The Guide to Understanding OSCAR OSCAR Chart Organization Attaching Images and Files on Apnea Board Apnea Helpful Tips INFORMATION ON APNEA BOARD FORUMS OR ON APNEABOARD.COM SHOULD NOT BE CONSIDERED AS MEDICAL ADVICE. ALWAYS SEEK THE ADVICE OF A PHYSICIAN BEFORE SEEKING TREATMENT FOR MEDICAL CONDITIONS, INCLUDING SLEEP APNEA. INFORMATION POSTED ON THE APNEA BOARD WEB SITE AND FORUMS ARE PERSONAL OPINION ONLY AND NOT NECESSARILY A STATEMENT OF FACT.
mawaw1992
Posts: 201 Threads: 26 Joined: Dec 2020
Machine: Resmed AirCurve 10 VAuto
01-11-2021, 08:07 PM
RE: Difference in AHI Number
The machine shows the reporting period is 1 day.
GuyScharf
Wiki Editor 
Posts: 4,287 Threads: 271 Joined: May 2018
Machine: ResMed AirCurve 10 VAuto
RE: Difference in AHI Number
For a brief discussion of the rounding issue, see http://www.apneaboard.com/wiki/index.php...leshooting.
Another possibility that has cropped up a couple times recently is that you didn't import the last session, so OSCAR and the machine are looking at different data. That can happen if your machine is on DST but your computer is on standard time and you imported the card less than an hour after you stopped using the machine. The workaround is just to import the card again.
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Difference in AHI Number
