These patients pay 3-times as much for health care
BSIP | UIG | Getty Images. A mere 20 conditions appear responsible for over half of all U.S. medical expenditures. · CNBC

Annual health-care spending on people with diabetes is more than three times higher on average than for those without the disease-and costs for children with diabetes are rising particularly sharply as they are more apt to use pricier versions of insulin, a new study found.

The study also revealed that those with diabetes, on average, pay more than double the out-of-pocket health costs than others who don't have chronically high blood sugar levels.

"We're seeing increased spending on these people, we're seeing increased people, and I think that's going to have an effect on employers, on insurers, and on the health-care spending" of the United States, said Amanda Frost, co-author of the report released by the Health Care Cost Institute on Thursday.

HCCI's report comes two years after the American Diabetes Association found that the total cost of diagnosed diabetes in the U.S. had risen 41 percent over the five-year period from 2007 to 2012, up to $245 billion annually.

The new HCCI report analyzed health-care claims of more than 40 million people who were enrolled in employer-sponsored insurance from 2009 through 2013.

In 2013, there were roughly 9 million people with diabetes in employer plans, or about 5.3 percent of the 169 million people in such coverage, Frost said. That was up from 4.7 percent of people in employer plans in 2009 who had diabetes, which is one of the most common chronic conditions in the U.S.

People without diabetes had per-capita health-care costs of $4,305 as of 2013, the study found. But people with diabetes had per-capita spending of $14,999 that year.

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And the costs were higher for children with diabetes up to age 18-$15,456 per capita-and for adults between the age of 55 and 64 years old. That group spent $16,889 per capita on health care.

The price of diabetes-specific medication played a role in the higher-than-average costs. Frost said HCCI would in the future examine how specific health services also affected diabetics' overall costs. She noted that diabetics often have other health issues, which can in turn increase medical costs beyond the national average.

When it comes to out-of-pocket costs-the share of health bills not covered by an insurance plan-people with diabetes were personally paying $1,922 in 2013. That compared to the $738 in per-capita out-of-pocket costs paid by people without the disease.

While overall health-care spending on people with diabetes rose by 4 percent in 2013, compared to 2.2 percent the year before, the level of spending grew much faster for children with the disease than for any other age group, HCCI found.