A new poll shows that consumer confidence in their health insurance dropped in the month of July, led by seniors concerned about the future of health care.

The Robert Wood Johnson Foundation Health Care Consumer Confidence Index found that Americans’ satisfaction with their health care coverage fell 5.2 points last month to 97.2. This is down from 102.3 in June, according to the research organization.

Since the index was introduced in spring, seniors eligible for Medicare (age 65 and older) have reported the highest confidence levels, according to the foundation. Their confidence level in July (106.8 points) was the highest in July, but fell 10.4 points from the prior month.

A majority (59.1%) of this age group expressed concerns over future health costs.

Individuals age 50-64 had the lowest confidence level in July at 90.7 points, down from 95.1 points in June.

The index is created from data collected by the Surveys of Consumers, with analysis by the University of Minnesota. It evaluates consumer confidence along a spectrum of economic issues including the health care system and ranges from 0 to 200 points.

For the month of July, research also indicated that more than half of all Americans (51.9%) are worried they will not be able to pay for their future health coverage needs in the event of a serious illness, while nearly half (47.1%) are worried they will not be able to afford routine health care services they need.

“Over the past few months, Americans have been increasingly bombarded with conflicting information about their health care, and some of it has probably been misinformation about health reform,” said Risa Lavizzo-Mourey, president and CEO of the Robert Wood Johnson Foundation, in a statement. “It is no surprise that consumer confidence in health care is erratic right now. People are confused about all of the different information they are hearing and not sure whom to trust.”

The index also found that more than a third of those surveyed (35.6%) reported being worried they will not be able to afford future prescriptions and more than a quarter (29.6%) indicated being worried that they will go bankrupt from inability to pay their medical bills.

Additionally, more than one in five (20.1%) report delaying needed medical care in the past year due to cost.

“We continue to see people struggling under the weight of our broken health care system,” said Lavizzo-Mourey. “Americans are feeling uneasy about their ability to pay for future and current health care needs. Unless meaningful reforms are enacted to control cost and ensure timely access to a physician when one is needed, the number of Americans struggling to afford health care and worrying about how they will survive will likely increase.”