Encounter Frequency and Serum Glucose Level, Blood Pressure, and Cholesterol Level Control in Patients With Diabetes Mellitus
- 26 September 2011
- journal article
- Published by American Medical Association (AMA) in Archives of Internal Medicine
- Vol. 171 (17), 1542-1550
- https://doi.org/10.1001/archinternmed.2011.400
Abstract
More frequent patient-provider encounters may lead to faster A1c, blood pressure and LDL control and improve outcomes but there are no guidelines for how frequently patients with diabetes should be seen. This retrospective cohort study analyzed 26,496 patients with diabetes and elevated A1c, blood pressure, and/or LDL cholesterol treated by primary care physicians at two teaching hospitals between 1/1/2000 and 1/1/2009. Relationship between provider encounter (defined as a note in medical record) frequency and time to A1c, blood pressure and LDL control was assessed. Comparing patients who had encounters with their physicians between 1-2 weeks vs. 3-6 months, median time to A1c < 7.0% was 4.4 vs. 24.9 months (not on insulin) and 10.1 vs. 52.8 months (on insulin); median time to blood pressure < 130/85 mm Hg was 1.3 vs. 13.9 months; and median time to LDL < 100 mg/dL was 5.1 vs. 36.9 months, respectively (p < 0.0001 for all). In multivariable analysis, doubling the time between physician encounters led to a 35%, 17%, 87%, and 27% increase in median time to A1c (off and on insulin), blood pressure, and LDL targets, respectively (p < 0.0001 for all). Time to control decreased progressively as encounter frequency increased up to once every two weeks for most targets, consistent with pharmacodynamics of respective medication classes. Biweekly primary care provider encounters are associated with fastest achievement of A1c, blood pressure, and LDL targets for patients with diabetes.Keywords
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