Goodwin's Case

National Grid, formerly KeySpan New England, LLC (self-insurer), appeals from a decision of the reviewing board of the Department of Industrial Accidents (board) affirming the award of temporary disability and medical benefits to William Goodwin (employee). At issue in this appeal is the application of the “major cause” standard of G. L. c. 152, § 1(7A), when an industrial injury combines with a noncompensable *643preexisting condition to cause the employee’s disability.1 On appeal, the self-insurer claims that (1) the board’s decision, which failed to treat the impartial medical examiner’s…