Light Health Care Users: Most Americans Use Few Health Care Resources and Have Low Out-of-Pocket Spending

Every day we read news coverage focused on rapidly rising health care costs, but a seldom-reported part of the story is how very few people are responsible for those costs.

A study of health care costs from 1977 to 2014 shows that over the length of the study period, the top 1 percent of the health care using population consistently cost the system more than the bottom 75 percent. Just 1 percent of the population, in fact, accounts for nearly a third of medical spending.

The study, published in the April 2017 issue of Health Affairs, finds that “most Americans use few health care resources and have low out-of-pocket spending.”

In addition, more than 93 percent of these light spenders (those in the bottom half of the population) believe they have received “all needed care in a timely manner,” and the light spending by the majority of the population “has remained almost unchanged during the thirty-seven-year period.”

This light spending has also remained “unchanged since the inception of the Affordable Care Act (ACA),” as a Medscape article on the study notes.

These findings matter because most health care policy discussions focus on spending at the population level – in other words, on the 1 to 5% of the U.S. population that incurs significant medical costs. That isn’t how individuals think of health spending, however. Most of us think of what we as individuals, or perhaps our family, spends on health care.

Insurance, by design, must include many non-users, so to speak, in order to work. Most of us buy home insurance or car insurance and never use it. That is, we make payments to an insurer in the form of premiums, but we typically don’t have car accidents and don’t have house break-ins or fires. Similarly, most people don’t have much in the way of medical spending.

But if too many light spenders don’t buy insurance, the price of insurance increases for everyone. And in fact, that is what happens.

This chart from the April 2017 Health Affairs article  shows that the highest spenders are the most likely to be on public insurance – think Medicaid for the severely disabled – and light spenders are the most likely to be uninsured – they don’t think they need it, and they probably don’t for years and years – until something catastrophic happens.

In terms of out-of-pocket spending, for light spenders in 2014 this figure was just $75 on average, which is less than the $94 (in adjusted 2014 dollars) spent in 1977, the authors find. On the other hand, high spenders averaged $1,096 in out-of-pocket costs. And 50% of light spenders had no spending at all (not including health insurance premiums, if they were insured), whereas only 6.1% of high spenders had none.

As we continue to think about how to improve or change health care insurance, delivery, and payment in the U.S., it is important to remember how few people actually interact with the health care system every year. Even for people buying health insurance, a large proportion of people spend little on actual health care services, and that has remained stable for decades.

This makes some complaints about the Affordable Care Act a little easier to understand. As the study explains, light spenders “as a group are unlikely to receive substantial short term benefits from the Affordable Care Act.”

The question is, what is insurance for? We probably shouldn’t design the entire U.S. health care system for people who don’t need care. But the subtle lines of who pays more, the sick or the well, the old or the young, are something we still need to work out.