"auto cpap time at pressure" graph on Encore...???

Can someone help me to decipher this? My graph is pretty weird: it starts at 24, then rises to 32 and continues beyond that. The auto cpap red line is above 90% for the majority of the graph...almost literally off the charts. But I don't know what this means! the rest of my numbers look pretty good...

While I'm asking...my Average cpap Pressure number hovers right around 7.3. Again, I'm still learning what this means. Any comments?

Actually, is there a chart somewhere that 'scores' the numbers that we get on our Encore or Sleepyhead reports? I understand that there are a lot of variables, and that each person is particular in terms of therapy. But wouldn't a chart which shows, in a general way, what we're looking to aim for in terms leaks, AHI, etc. be a useful tool?

This has probably been covered before; sorry if I'm repeating here.

There's this which may explain some of the things you are seeing on the detailed reports. Some of the data that is shown your M series machine doesn't gather but the overall basics is the same for the items that are gathered by your machine.
http://www.healthcare.philips.com/pwc_h ... _Guide.pdf

It would help if we could see what you are seeing on the things you don't understand.

That graph at the bottom of the detailed reports is a bit confusing as it doesn't always make sense until you know what it is doing.

No, there's no "chart" that offers what each item might mean because there are so many variables.

Leaks...your machine reports total leaks (all this is explained in the SleepyHead tutorial viewtopic/t88983/Pugsys-PointersSleepyH ... nding.html to some extent. Same data just presented differently by SleepyHead) which is the mask's vent rate plus any excess leak. Your large leak territory for your machine is somewhere around 90 L/min. Respironics never tells us an exact number. Instead look at the leak line graph and if you don't see a change in green to denote large leak then your leaks are within acceptable limits and that's all that Respironics cares about.

How to post images of your detailed reports so we can see what you are seeing is explained here.
viewtopic.php?f=1&t=81072&p=737779#p737779

hegel wrote:Can someone help me to decipher this? My graph is pretty weird: it starts at 24, then rises to 32 and continues beyond that. The auto cpap red line is above 90% for the majority of the graph...almost literally off the charts. But I don't know what this means! the rest of my numbers look pretty good...

The numbers on the LEFT side of that chart are "Cumulative Hours of Usage" where the "hours" are computed over the last seven days of usage (if the report has that many days) if I recall. So if you use the machine for roughly 7 hours a night, then the number at the top of the scale on the left is going to be somewhere around 49; if you use the machine for roughly 8 hours a night, then the number at the top of the scale is going to be somewhere around 56.

The numbers on the RIGHT of the chart labeled "Percent of Time at pressure".

So looking at this chart immediately lets you know how much time (in hours) you were AT or BELOW each given pressure level (given by the left scale) AND the percentage of time spent AT or BELOW that pressure level (given by the right scale). Since you are AT or BELOW the 90% pressure level for 90% of the night, it's obvious that the 90% line should be near the top of chart.

Actually, is there a chart somewhere that 'scores' the numbers that we get on our Encore or Sleepyhead reports? I understand that there are a lot of variables, and that each person is particular in terms of therapy. But wouldn't a chart which shows, in a general way, what we're looking to aim for in terms leaks, AHI, etc. be a useful tool?

The long term trend data that is located on the page following the end of the usage data on an Encore report gives you both a visual picture of the trend of many of the important data points and an "average number" for each of those data points. It's just a matter of figuring out what kind of trends you want to see in the data and how those patterns are reflected in the average numbers.

Or are you wanting something that takes all the different (independent and semi-independent) variables and massages that into some kind of master score for the night? If that's what you are after, then I don't think there is anything out there, and I think the reason that there's nothing like that out there.

Thanks everyone for your responses; I understand now. Pugsy, I followed your link about posting Encore graphs earlier on, but my cheapo pc doesn't seem to have the necessary apps. It's probably still easily doable but I've been busy and haven't quite got around to figuring it out. I'll do it soon.