Variable Pre Post P AHI Median Minimum Maximum 42.36 31 55 16.66 4 35 0.000 Desaturation Index Median Minimum Maximum 30.27 20 40 10.86 1.5 26 0.000 Lowest nocturnal desaturation (SPO2) Median Minimum Maximum 81.21 78 89 86 80 92 0.000

Table 4: AHI, Desaturation index and lowest nocturnal desaturation pre and post treatment.