Media company Gannett says its chairman and CEO is resigning due to health issues.

Craig A. Dubow, 56, a 30-year veteran of the company, has been Gannett's CEO since 2005. He began his second medical leave in two years on Sept. 15. He has been dealing with back and hip problems.

Gannett Co. is splitting the chairman and chief executive roles. Marjorie Magner, 62, an independent director since 2006, was named non-executive chairman. Gracia C. Martore, 60, formerly president and chief operating officer, was named CEO. She has served as principal executive officer during Dubow's medical leave.

Gannett, a diversified media company, publishes USA Today and more than 80 other U.S. newspapers.

Dubow is also a member of The Associated Press' board of directors.