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Table 3 Percentile ranks (point and 95% interval estimates) corresponding to MDAS raw scores for females aged 16 to 34

From: UK population norms for the modified dental anxiety scale with percentile calculator: adult dental health survey 2009 results

   95% CI
Raw score Percentile rank Lower Upper
5 5 0.2 9.8
6 12 9.1 15.7
7 18 14.4 22.5
8 25 20.9 28.5
9 31 26.7 36.0
10 37 33.9 41.2
11 43 38.8 47.2
12 49 45.0 53.8
13 55 51.4 58.9
14 60 56.5 64.4
15 66 62.1 69.5
16 70 67.1 73.6
17 74 71.1 77.2
18 78 74.7 80.3
19 81 78.1 84.4
20 85 82.6 87.8
21 89 86.1 91.2
22 92 89.7 93.7
23 94 92.4 95.8
24 96 94.6 97.1
25 98 96.3 99.9