There were 422 patients, 344 males and 78 females, who went through a polysomnography from March 2009 to June 2012. The records were manually scored to their standard criteria. Scoring hypopneas were patients with total sleep time duration of hypopneas under 200 minutes. The duration of REM and NREM must be similar otherwise there could be large opportunities for error. AHI had to be greater than 0, and values of means of Oa, obtrusive apnea, or Ma, mixed apneas, that were zero were not used in the analysis. The researchers compared AHI in REM and NREM sleep in supine or lateral body position, but only AHI values with a 20-minute minimum record were accepted. The process went from a larger sample to a small sample in where all viable participants were analyzed and their stats were put into standard
There were 422 patients, 344 males and 78 females, who went through a polysomnography from March 2009 to June 2012. The records were manually scored to their standard criteria. Scoring hypopneas were patients with total sleep time duration of hypopneas under 200 minutes. The duration of REM and NREM must be similar otherwise there could be large opportunities for error. AHI had to be greater than 0, and values of means of Oa, obtrusive apnea, or Ma, mixed apneas, that were zero were not used in the analysis. The researchers compared AHI in REM and NREM sleep in supine or lateral body position, but only AHI values with a 20-minute minimum record were accepted. The process went from a larger sample to a small sample in where all viable participants were analyzed and their stats were put into standard