S.C. Code Ann. § 42-9-120: Determination and requirements of other cases of dependency.

In all other cases questions of dependency, in whole or in part, shall be determined in accordance with the facts as the facts may be at the time of the accident; but no allowance shall be made for any payment in lieu of board and lodging or services and no compensation shall be allowed unless dependency existed for a period of three months or more prior to the accident.