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November 23, 2003
Risk Of Positive Test By Age
Risk to test positive for an HD mutation in at-risk adults
Probability that a person with an apriori 50% Risk for HD will test
positive for an HD mutation if He/She remains asymptomatic at a given age
Age (Years) |
Probability of an HD Mutation (%) |
20 yrs |
49.6% |
22.5 yrs |
49.3% |
25 yrs |
49% |
27.5 yrs |
48.4% |
30 yrs |
47.6% |
32.5 yrs |
46.6% |
35 yrs |
45.5% |
37.5 yrs |
44.2% |
40 yrs |
42.5% |
42.5 yrs |
40.3% |
45 yrs |
37.8% |
47.5 yrs |
34.8% |
50 yrs |
31.5% |
52.5 yrs |
27.8% |
55 yrs |
24.8% |
57.5 yrs |
22.1% |
60 yrs |
22.1% |
62.5 yrs |
18.7% |
65 yrs |
12.8% |
67.5 yrs |
10.8% |
70 yrs |
6.2% |
72.5 yrs |
4.6% |
From Harper & Newcombe 1992
Copyright© 1993-2003, All Rights Reserved
www.genetests.org
Children's Health System and University of Washington, Seattle
Posted by Dave at November 23, 2003 07:17 AM
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