Sep. 9, 2009 (United Press International) -- Many insured Americans think the current healthcare system works, but say not understanding their plans stresses them, a Cigna (NYSE:CI) survey indicated.

Among the survey findings the global health service company highlighted in a release Wednesday were:

-- A majority of Americans, 79 percent and most with insurance, said the existing healthcare system works for them.

-- Forty percent of Americans said they get stressed thinking about healthcare costs and coverage.

-- About 20 percent of respondents said they found making healthcare-related decisions more difficult than other activities such as sitting in traffic, traveling with small children, going on a job interview or preparing taxes.

-- Insured Americans said understanding their healthcare plans ranked below understanding documents such as mortgages, contracts for services, retirement plans and car warranties.

"We are continually asking ourselves what we can do to simplify healthcare for all the diverse people we serve," Cigna Chief Learning Officer Karen Kocher said. "Survey results overall are encouraging, in that most Americans say the current system works for them. But for some people, healthcare is still a stressful subject and process."

The nationwide telephone survey, conducted by Opinion Research Corp. for the Bloomfield, Conn., insurer, contacted 1,001 adults July 23-26. The margin of error is 3 percentage points.