Abstract
OBJECTIVEThis study compared the clinical and economic benefits associated with dual-goal achievement, glycated hemoglobin (HbA1c) <7% (53 mmol/mol) and LDL cholesterol (LDL-C) <100 mg/dL, with achievement of only the LDL-C goal or only the HbA1c goal in veterans with type 2 diabetes mellitus (T2DM).RESEARCH DESIGN AND METHODSThis retrospective cohort analysis evaluated electronic medical records (Veterans Integrated Service Network 16) in adult T2DM patients with two or more measurements of LDL-C and HbA1c between 1 January 2004 and 30 June 2010 (N = 75,646). Cox proportional hazards models were used to compare microvascular and cardiovascular outcomes by goal achievement status; generalized linear regression models were used to assess diabetes-related resource utilization (hospitalization days and number of outpatient visits) and medical service costs.RESULTSRelative to achievement of only the LDL-C goal, dual-goal achievement was associated with lower risk of microvascular complications (adjusted hazard ratio [aHR] 0.79), acute coronary syndrome (0.88), percutaneous coronary intervention (0.78), and coronary artery bypass graft (CABG) (0.74); it was also associated with fewer hospitalization days (adjusted incidence rate ratio [aIRR] 0.93) and outpatient visits (0.88), as well as lower diabetes-related annual medical costs (−$130.89). Compared with achievement of only the HbA1c goal, dual-goal achievement was associated with lower risk of the composite cardiovascular-related end point (aHR 0.87) and CABG (aHR 0.62), as well as fewer outpatient visits (aIRR 0.98).CONCLUSIONSAchieving both HbA1c and LDL-C goals in diabetes care is associated with additional clinical and economic benefits, as compared with the achievement of either goal alone.
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