This Commonwealth Fund survey of U.S. adults’ health costs measures premiums, deductibles, and out-of-pocket spending as a share of income for a population of insured people, made up primarily of people with employer coverage, but also including people in marketplace plans and with individual coverage. 

The most recent installment found that one-quarter of privately insured working-age adults have high health care cost burdens relative to their incomes in 2015.