(CLEVELAND.CBSLOCAL) — The U.S. has one of the highest divorce rates in the world as nearly 45 percent of marriages are expected to end through divorce.

Now a study has found that the divorce rate among older adults has more than doubled since 1980 and one in four persons who gets a divorce today is over age 50.

Susan L. Brown and I-Fen Lin conducted the study at the Center for Family and Demographic Research within Bowling Green State University.

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