The one demographic that saw a rise in employer-sponsored coverage was adults ages 19 to 25. That was attributed to a provision in the Patient Protection and Affordable Care Act that allows those under 26 to remain on their parents' insurance policy. In Oklahoma, participation inched up to 34.7 percent from 31.5 percent.
Separately, a report released by the International Foundation of Employee Benefit Plans found 69 percent of companies plan to continue sponsoring health benefits when the health care act's exchanges open in January. In 2012, only 46 percent were definite they'd continue to offer coverage.
Analysis wasn't broken down by state; only regions, spokeswoman Stacy Van Alstyne said. The results are based on survey responses submitted by more than 950 employee benefit professionals and practitioners through March 26, she said. Final survey results are scheduled to be released in May.