Report: Employees' share of healthcare costs surges

Although healthcare costs for companies rose at the lowest rate in 20 years in 2015, the share that workers pay increased drastically, according to a report from Aon Hewitt.

The average rate increase for mid- and large-sized companies went up by only 3.2 percent, while the average amount that workers have to contribute is up by more than 134 percent, and there doesn't seem to be any sign of that figure slowing down. Aon Hewitt's analysis is based on a database of more than 600 large U.S. employers that represent roughly 11.7 million employees, their spouses, partners and dependents.

In addition, employers' efforts to mitigate health costs include offering high-deductible plans, implementing effective pharmacy management programs and adopting pay-for-performance strategies. Report