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[Diagnosis] graph
#1
the graph on sleepyhead AHI has two lines top and bottom the bottom line has my average AHI what does the top line show?
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#2
a little hard without more of an explanation.
probably you are looking at the AHI for the whole night (single number) and then a graph of the hourly AHI going up and down thru the night on the bottom.
true AHI is total events divided by the total time (in hours). 27 events in 6 hours yields and AHI of 4.50.

At the very top of graphs, I think that one is the AHI calculated over the period that is displayed only. If I zoom into a 1 hour and 55 minute section, and count 14 events in that section, AHI there is 14 divided by 1.9 hours = 7.36.

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#3
Could it be AHI and RHI?
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