Poll respondents were also worried about the security of their electronically transmitted medical information: 47 percent were "somewhat confident" it would be secure, while roughly 40 percent were "not very" or "not at all" confident.
That's a valid worry, Schleyer said. However, he also doubts that a hacker would have much interest in the blood pressure readings you're sending to your doctor. "They're probably more interested in your credit card number."
Schleyer thinks there's a lot of promise for technology to improve health care for Americans -- if, for instance, consumers can get not only test results sent to their phones, but also user-friendly information on what those results mean.
"But right now, none of this is mature yet," he said.
The poll results are based on an online survey of 2,050 Americans aged 18 and older, conducted between May 22-24.
The U.S. Department of Health and Human Services has more on health information technology.
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