Arches. Photo by Daniel Chia
HOPES: Huntington's Outreach Project for Education, at Stanford
Nov
14
2010

confidence interval (C.I.)

A range in which a certain value is expected to fall. For example, for a certain number of CAG repeats, a 95% confidence interval for age of onset means that we can be 95% sure an individual with that number of CAG repeats will begin having symptoms within the given age range.