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. 2011 Aug 1;34(8):1083–1092. doi: 10.5665/SLEEP.1166

Table 5.

Visual analog scale (VAS) ratings for sleep quality, mask comfort, and treatment satisfaction and benefit

Visit Interval A-Flex
 CPAPAPAP
 CPAP
 P
N Mean ± SD N Mean ± SD N Mean ± SD
    Sleep Quality1
        30 Days 53 60.4 ± 21.1 51 63.9 ± 17.3 53 66.6 ± 16.7 0.2
        90 Days 51 61.2 ± 23.1 46 70.2 ± 16.1 51 64.3 ± 18.7 0.053
        180 Days 46 64.7 ± 18.7 47 72.8 ± 15.1 47 66.5 ± 21.1 0.056
    Satisfaction2
        30 Days 53 60.1 ± 19.7 51 67.5 ± 18.4 53 69.4 ± 16.5 0.03
        90 Days 51 65.4 ± 22.0 46 69.8 ± 17.1 51 69.7 ± 17.4 0.3
        180 Days 46 63.5 ± 22.0 47 71.0 ± 16.2 47 71.6 ± 16.1 0.03
    Comfort3
        30 Days 53 50.8 ± 21.5 51 57.9 ± 20.5 53 53.9 ± 18.9 0.2
        90 Days 51 53.8 ± 25.1 46 61.0 ± 15.0 51 59.2 ± 18.3 0.2
        180 Days 46 54.7 ± 21.7 47 60.1 ± 14.7 47 60.6 ± 17.9 0.1
    Benefit4
        30 Days 53 66.3 ± 24.6 51 70.4 ± 16.9 53 73.1 ± 16.2 0.2
        90 Days 51 68.0 ± 24.5 46 77.0 ± 13.2 51 71.9 ± 16.2 0.046
        180 Days 46 70.8 ± 24.2 47 79.3 ± 10.5 47 77.4 ± 15.6 0.02

No VAS was obtained at baseline (PAP Titration PSG).

1

Question: “In the last month, how well did you sleep?” 0 = poorly to 100 = very well.

2

Question: “How do you like your therapy?” 0 = very unlikable to 100 = very likable.

3

Question: “In the last month, how do you rate the overall comfort of the mask?” 0 = very uncomfortable to 100 = very comfortable.

4

Question: “How do you rate the benefit of your treatment?” 0 = no benefit to 100 = large benefit.