When doing sleep/overnight SpO2, is there anywhere to find the total time spent under 90%, called T-90 in some scientific literature? This seems to be the critical piece of info to look at. See for example this paper: www.ncbi.nlm.nih.gov/.../ Others have noted that the readings sometimes dip below 90% when it seems like they maybe they shouldn't. From that paper it sounds like it's how long they stay below there total for the night that gives a better single-number sense of whether there is a problem than the "lowest SpO2" number that is provided by the portal by default.
Would be easy to calculate. Where does one submit something like this as a feature request?