[pnoon]

I am reasonably certain Colin is correct. The whole numbers represent the events over the full night of sleep. The total average of 10.7 is significant. This number is often referred to as the AHI or Apnea/Hypopnea Index. The AHI is a measure of the number of events per hour. It was explained to me that an event was either a cessation of breathing or blood oxygenation level dipping below 90%.

When I did my sleep study a little over a year ago, my hourly was 29. It was explained to me that anything over 5 is considered moderate sleep apnea and anything over 15 is considered severe. What is interesting to me is that my CPAP is set for 4 and that my AHI is now steady around 0.7-1.1.