One of the big factors in considering whether to accept a job isthe benefits package that goes withit.

But once they take the job, it doesn’t necessarily follow thatemployees are satisfied with the benefits they’re getting—and ifthey’re not happy, they probably won’t hang around.

Read: 5 things millennials want frombenefits

That’s according to research from the Employee Benefit ResearchInstitute, which reported that more than a third—36 percent—ofworkers say that the benefits package at work is extremelyimportant, while 41 percent say it’s very important.

“In fact,” EBRI said in its report, “22 percent of workersreport they have accepted, quit, or changed jobs because of thebenefits, other than salary or wage level, that anemployer offered or failed to offer.”

But just 14 percent of workers say they’re extremely satisfiedwith those benefits, and 37 percent very satisfied—barely over halfthe workers surveyed.

Another 30 percent are only somewhat satisfied; the rest are nottoo satisfied (11 percent) or not at all satisfied (9 percent).

If that’s not a big enough alarm for employers, research alsofound that job satisfaction and worker morale are stronglycorrelated with benefits satisfaction.

EBRI said that 54 percent of those who are extremely satisfiedwith their benefits are also extremely satisfied with their currentjob, compared with only 20 percent of those who are verysatisfied.

Just 10 percent of those who are at most somewhat satisfied withtheir benefits say they are extremely satisfied with their job.

The highest-ranked benefits are health insurance (88 percent ofworkers said it was extremely or very important), a retirement plan(75 percent of workers classed it as extremely or very important)and dental or vision insurance (70 percent said those wereextremely or very important).

Read: Student loan help as valuable toemployees as a 401(k) plan

But when it comes to retirement, 50 percent of workers say atraditional pension or defined benefit plan is extremely or veryimportant. Yet it’s something just 31 percent of employers in thestudy provide.