C. SAC and SOAC Unaided Means and Range Data

In order to simplify these findings we have collapsed all three samples into one database and show mean and 10-90 percentile ranges for both unaided SAC (Figure C-1) and unaided SOAC (Figure C-2) data.

We have also shown in Figure C-1 for comparison purposes the mean unaided data as gathered by Gatehouse using the Glasgow Hearing Aid Benefit Profile (GHABP) (using 4 similar disability/activity items and 1 handicap/participation item weighted 6:4 as in SAC/SOAC). These are reported in terms of our 8 PTGs. As noted the means are quite similar except for 4k-1 and 4k-2 and all the UK mean data fall within the SAC ranges.

UNAIDED DATA

Figure 2 small
Figure C-1
(Click on Image to Enlarge)

PTG
10th %tile
Mean
90th %tile
4k1 0.0 18.5 43.0
4k 2 4.0 23.2 48.5
Flat 1 5.0 33.9 67.5
Flat 2 27.5 61.2 98.5
Slope 1 7.5 32.9 67.5
Slope 2 21.0 57.7 95.7
Precip 1 5.0 28.5 57.5
Precip 2 17.5 46.0 82.5

UNAIDED DATA

Fig 2b
Figure C-2
(Click on Image to Enlarge)

PTG
10th %tile
Mean
90th %tile
4k1 0 16.1 47.2
Flat 1 13.8 48.3 75.0
Sloping 1 0 27.4 69.4
Precipitous 1 13.9 30.6 77.8