Most American consumers are optimistic about the potential benefits from advances in genetic testing, according to a national survey of U.S. adults conducted by UnitedHealth Group and Harris Interactive, the results of which are included in a report published by UnitedHealth Group's Center for Health Reform & Modernization. About three-quarters of survey respondents agree that genetic tests help doctors diagnose preventable conditions and offer more personalized treatment options. Most consumers expect that five years from now the use of testing will have increased.