CHICAGO — The board of the Detroit Medical Center voted to extend the deadline for its $1.5 billion acquisition by a for-profit Tennessee health care company to Dec. 31, saying the parties were still waiting for state regulatory approvals.

The deal is set to close Oct. 31. ­Michigan Attorney General Mike Cox, who is running for re-election, and the federal Centers for Medicare and Medicaid still need to approve the transaction, according to a DMC spokesman.

Subscribe Now

Independent and authoritative analysis and perspective for the bond buying industry.

14-Day Free Trial

No credit card required. Complete access to articles, breaking news and industry data.