No one here knows, but they will probably speculate about it.
Now when you say "large number", how many are you talking about?
Last night I had 31 hypopneas, 6 obstructives and 17 clear airway events, AHI was 8.4 The night before, my AHI was 3.1, with 8 H's, 6 OA's and 9 CA's. Basically, I guess I'm all over the place.
Before I started sleeping on my side only, the H's and OA's were much higher. So, staying off my back has made a significant difference in the number of OA's, a smaller difference in the H's, and off course no real change in the CA's.
The more I think about it I might just leave things as they are since I have another study coming up, I'm pretty sure I'm going to end up with either a BiPap or ASV. After 2 months of fiddling the only thing that's made any significant difference was staying off my back and that's only really addressed the OA's.