Even with subsidies to make coverage more affordable, many people who buy health insurance on the marketplaces spend more than 10% of their income on premiums, deductibles and other out-of-pocket payments, a recent study found. Among those hit hardest, the researchers said, are people who spend nearly a quarter of their income on health care expenses.

“There’s been a lot of talk about how high deductibles and out-of-pocket costs are in the Affordable Care Act, and a lot of anecdotes about that, and this [study] quantifies that in a more systematic way,” said John Holahan, a fellow at the Urban Institute’s Health Policy Center who co-authored the study.