PURPOSEThe patient-centered medical home is often discussed as though there exist either traditional practices or medical homes, with marked differences between them. We analyzed data from an evaluation of certifi ed medical homes in Minnesota to study this topic.
METHODSWe obtained publicly reported composite measures for quality of care outcomes pertaining to diabetes and vascular disease for all clinics in Minnesota from 2008 to 2010. The extent of and change in practice systems over that same time period for the fi rst 120 clinics serving adults certifi ed as health care homes (HCHs) was measured by the Physician Practice Connections Research Survey (PPC-RS), a self-report tool similar to the National Committee for Quality Assurance standards for patient-centered medical homes. Measures were compared between these clinics and 518 non-HCH clinics in the state.RESULTS Among the 102 clinics for which we had precertifi cation and postcertifi cation scores for both the PPC-RS and either diabetes or vascular disease measures, the mean increase in systems score over 3 years was an absolute 29.1% (SD = 16.7%) from a baseline score of 38.8% (SD = 16.5%, P ≤.001). The proportion of clinics in which all patients had optimal diabetes measures improved by an absolute 2.1% (SD = 5.5%, P ≤.001) and the proportion in which all had optimal cardiovascular disease measures by 4.4% (SD = 7.5%, P ≤.001), but all measures varied widely among clinics. Mean performance rates of HCH clinics were higher than those of non-HCH clinics, but there was extensive overlap, and neither group changed much over this time period.
CONCLUSIONSThe extensive variation among HCH clinics, their overlap with non-HCH clinics, and the small change in performance over time suggest that medical homes are not similar, that change in outcomes is slow, and that there is a continuum of transformation.Ann Fam Med 2013;11:S108-S114. doi:10.1370/afm.1478.
INTRODUCTIONT here has been controversy about the defi nition, measurement, and recognition of primary care clinics as patient-centered medical homes (PCMHs).1,2 It is not surprising that such a recent development, especially one with widely divergent high expectations from different perspectives, would be so ambiguous and full of unanswered questions about what a PCMH is, how it might be measured, what its effects are, and how a traditional primary care practice best becomes one.1-3 Although the PCMH recognition program of the National Committee for Quality Assurance (NCQA) was the fi rst and is still the largest program for identifying PCMHs, several other national programs and local demonstration projects have come up with their own operational defi nitions. 4 Advocates of medical homes often describe them as uniquely and markedly different from traditional practices, in both process and outcomes. 5 As a result, medical homes are often compared with non-medical homes. The research literature, on the other hand, is more cautious about
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