Although there's been much angst about the dramatic price increases anticipated for Affordable Care Act health plans, a new report from the National Business Group on Health shows that the cost of employer-based insurance, still by far the dominant source of health coverage, will rise only modestly next year.

The report estimates that the average cost of an employer-based health plan will increase 6%. That outpaces inflation, but it is no greater an increase than employers experienced over the past year and it is lower than the anticipated 10% increase for plans offered through the ACA exchanges.

"This is a clear indication that the employer-based health care model continues to be the most effective way to provide health insurance coverage to employees and their families," said Brian Marcotte, CEO of the National Business Group on Health, a nonprofit that represents large businesses.