Private-sector employers are increasingly choosing self-insured health plans to cover their employees, according to a new study. The nonpartisan Employee Benefit Research Institute (EBRI) found that about 6 in 10 private-sector workers were covered by self-insured plans in 2011, up from about 4 in 10 in the late 1990s. Researchers predicted the trend may continue as employers look for ways to save money on their healthcare coverage.