01/14/2014 10:32 am ET Updated Jan 23, 2014

Most Insurance Enrollees Older Than 45, Records Show

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More than half of the almost 2.2 million people who bought health insurance on federal and state exchanges in the past three months are older than 45, records released Monday show.

If that trend holds, it could skew the health insurance market as older policyholders that use more health care are not balanced by younger policyholders who tend to use less health care. In effect, the younger policyholders subsidize older ones.

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