About 17% of U.S. workers say they have missed work for an extended period due to illness or injury.

Researchers at CIGNA Corp., Philadelphia, have reported that finding in a summary of results from a telephone survey of 742 full-time U.S. workers ages 18 and older conducted in January and February.

About 20% of the workers who said they had missed work due to illness or injury said they were glad to have the time off to get better, but 58% said they have negative feelings about the experience, CIGNA reports.

Many participants in the general population said they would feel economically vulnerable if health problems caused them to be out of work.

About 62% said their top worry would be about coming up with a pay to make mortgage or rent payments, and 94% said having disability insurance would be valuable.