Most people who are not on Medicare doubt the program will supply good and affordable healthcare by the time they turn 65, according to a new survey.

In its 2012 Health Confidence Survey, the Employee Benefit Research Institute (EBRI) found most of those polled who are not yet eligible for Medicare lack confidence in several dimensions of the program’s future.

Specifically, 80 percent expressed partial to no confidence that they will be able to afford healthcare while on Medicare without struggling financially.

A similar 77 percent were unsure that Medicare will afford them a good choice of medical providers, and 75 percent doubted that the program will guarantee them the medical treatments they need.