(A) No difference is seen between the adjusted rate of surgery (AROS) of the Commonwealth Care and non-Commonwealth Care groups. (B) There is no difference between the AROS of Commonwealth Care, Other Insured, and Uninsured group. (C) The AROS of the workers compensation and TriCare groups were higher than that of the Commonwealth Care group, but the AROS of the Private Insurance, Medicare, MassHealth, and Uninsured groups, were not different than that of the Commonwealth Care group.