Statesboro’s East Georgia Regional Medical Center is set to become part of an even larger hospital chain than the one it is in now. Community Health Systems Inc. announced Tuesday that the company has entered into a merger agreement with Health Management Associates Inc., East Georgia’s parent company, for approximately $3.9 billion — $7.6 billion counting assumed debt. When the deal is complete, Community Health Systems would own or operate approximately 206 hospitals in 29 states, with a total bed count of more than 31,000, according to a news release issued by the company.