• Patrick J O'Connor, A Lauren Crain, William A Rush, Joann M Sperl-Hillen, Jay J Gutenkauf, and Jane E Duncan.
• HealthPartners Medical Group and HealthPartners Research Foundation, Minneapolis, MN 55440-1524, USA. patrick.j.oconnor@healthpartners.com
• Ann Fam Med. 2005 Jul 1; 3 (4): 300306300-6.

PurposeThis study was designed to evaluate the impact of electronic medical record (EMR) implementation on quality of diabetes care.MethodsWe conducted a 5-year longitudinal study of 122 adults with diabetes mellitus at an intervention (EMR) clinic and a comparison (non-EMR) clinic. Clinics had similarly trained primary care physicians, similar patient populations, and used a common diabetes care guideline that emphasized the importance of glucose control. The EMR provided basic decision support, including prompts and reminders for diabetes care. Preintervention and postintervention frequency of testing for glycated hemoglobin (HbA1c) and low-density lipoprotein (LDL) levels were compared with and without adjustment for patient age, sex, comorbidity, and baseline HbA1c level.ResultsFrequency of HbA1c tests increased at the EMR clinic compared with the frequency at the non-EMR clinic (P < .001). HbA1c levels improved in both clinics (P < .05) with no significant differences between clinics 2 years (P = .10) or 4 years (P = .27) after EMR implementation. Similar results were observed for LDL levels.ConclusionsIn this controlled study, EMR use led to an increased number of HbA1c and LDL tests but not to better metabolic control. If EMRs are to fulfill their promise as care improvement tools, improved implementation strategies and more sophisticated clinical decision support may be needed.

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