Spending at Massachusetts' biggest health insurer and health care provider helped drive overall health care spending well above inflation last year, as the state's efforts to control rising costs met mixed success, according to a report to be released Tuesday. Spending at Blue Cross Blue Shield of Massachusetts jumped 3.65 percent, and as much as 4 percent for some Partners HealthCare patients last year, compared with an inflation rate of 1.4 percent in the Boston metropolitan area. Overall health care spending grew 2.3 percent, according to the report from the Center for Health Information and Analysis, a state agency.
