MacDonald's Case

Ohio Casualty Insurance Co. (insurer) appeals from a decision of the reviewing board of the Department of Industrial Accidents (board) affirming the decision of an administrative judge that awarded total and partial disability worker’s compensation benefits to Scott D. MacDonald. The insurer contends that (1) the administrative judge and the board erroneously *658found the heightened standard of causation of G. L. c. 152, § 1(7A), inapplicable, and thus did not apply the proper standard of causation to MacDonald’s claim; (2) MacDonald failed, in any event, to establish that he was injured and…