This may be obvious to others but I haven't puzzled this out yet.
Looking over the last 45 or so days, I note that my median and 95 percent pressures are slightly higher as time has gone on. That may be a coincidence or that may be due to the narrow range perhaps?
They were somewhat lower avg in the 5-20 pressure range, than at the 7-14 range. Anyone know why this might be?
Also had good trend going with 3 or 4 days of AHI under 5.0 and then since new pillows on mask (prob coincidence) higher again. Still feel pretty good. Still less night loo trips (though far from gone) Just in case it was the new pillows, I swapped them back to the old one's two hours into night to see if it made a diff, noting that at the swap time I was having 9.9 events per hour.
I do have to say I like the nose pillows a bit broken in. Am I alone in this?
Sunshiney day here in S.F
Hope you all are having good days and better nights.
The Manse Hen
Median pressure going up can be explained by general mathematical rules of statistics. Median is the value that is in the center of the sampled data. If you are going to move up the lower bound of the sample, the center will likely shift up.
95% pressure going up can not be explained by math alone. Since you are changing masks during this process, that may effect it.
In my experience of titrating from 4-20 to 7.5-15, I have seen my 95% pressure to be in similar range for the same mask. It did drop appreciably once I went to Nasal Pillows (P10) from a FFM (F10), from 10-11 to less than 9.0.
Started APAP 4-20, Closed range to 7.5-14, then straight 8.0 w/ Aflex 3
RDI always below 1. But sleep much much better at straight pressure.
Started on F10, Tried Quattro Air successfully. Finally settled on P10.
The higher average pressures are most probably due to the increase in your minimum pressure. The machine is able to reach an effective pressure more quickly when you give it a head start. It will also be constrained from dropping as far as it may have been with the lower min pressure. So, yes, the average pressures may be somewhat higher than when the min. pressure was lower. It "should" also help your AHI.