General Background: I switched machines about a month ago, from Resmed to Respironics.  My sleep doc had said that the Resmed Autopap allows for more fine tuning but that I might find the Respironics more breather friendly -- I had complained about the Resmed sometimes feeling as  if I were forced to inhale or exhale slightly ahead of what I wanted to do.

Soecific Background: The Respironics data set is somewhat less detailed than the Resmed.  However it provides a distinction that Resmed did not; rather than AI and AHI, it purports to distinguish between Central Apnea (Clear Airway Apnea) and Obstructive Appnea.

The Good News: AHI, which, once I adjusted to Resmed and tweaked mask fit -- a matter of months -- had plateaued at about 1.1, has been a steady 0.9 on this machine, right off the bat. The breathing seems more comfrtable and the average EPAP and IPAP each slightly lower than had been the case.

Bad News?  Any Reason to be Concerned?:

The average Periodic Bretahing is 0.5%, the CA Index is 0.4  Obstructive Airway Apnea 0.3 and Hypopnea 0.2. 

Should I be worried that the CA is higher than either of the other two measures, or should I be delighted that the other two measures are so low and think of the CA as background noise? I don't think I am borderline neurotic/hypochondriac in wondering about this.  I am not likely to see my sleep doc again until June or I would have run this by him first -- the DME provider always ducks medical issues (as well they probably should).

Thanks in advance and apologize if this is too much background /detail -- I am a BiPAP veteran, have had too much surgery and now have much skepticism about that, and find this forum useful and informative -- hope that some or all of the detail is relevant and/or helpful to others.