Integrating Population Health Strategies into Primary Care: Impact on Outcomes and Hospital Use for Low-Income Adults.

Objective: Our objectives were two-fold: 1) To evaluate the benefits of population health strategies focused on social determinants of health and integrated into the primary care medical home (PCMH) and 2) to determine how these strategies impact diabetes and cardiovascular disease outcomes among a low-income, primarily minority community. We also investigated associations between these outcomes and emergency department (ED) and inpatient (IP) use and costs. Design: Retrospective cohort. Setting: Community-based PCMH: Baylor Scott & White Health and Wellness Center (BSW HWC). Patients/Participants: All patients who attended at least two primary care visits at BSW HWC within a 12-month time span from 2011-2015. Methods: Outcomes for patients participating in PCMH only (PCMH) as compared to PCMH plus population health services (PCMH+PoPH) were compared using electronic health record data. Main Outcomes: Diastolic and systolic blood pressure, hemoglobin A1c, ED visits and costs, and IP hospitalizations and costs were examined. Results: From 2011-2015, 445 patients (age=46±12 years, 63% African American, 61% female, 69.5% uninsured) were included. Adjusted regression analyses indicated PCMH+PoPH had greater improvement in diabetes outcomes (prediabetes HbA1c= -.65[SE=.32], P=.04; diabetes HbA1c= -.74 [SE=.37], P<.05) and 37% lower ED costs than the PCMH group (P=.01). Worsening chronic disease risk factors was associated with 39% higher expected ED visits (P<.01), whereas improved chronic disease risk was associated with 32% fewer ED visits (P=.04). Conclusions: Integrating population health services into the PCMH can improve chronic disease outcomes, and impact hospital utilization and cost in un- or under-insured populations.

Embedded Health Systems Science as a driver of care improvement within an integrated delivery organization.

BACKGROUND: Embedded Health Systems Science (HSS) has the potential to reduce gaps between research and delivery of evidence-based medicine. Models are needed to guide the development of embedded HSS in health care delivery organizations particularly with the rise of value-based care. METHODS: The development of HSS infrastructure at a large nonprofit health care delivery organization is described, along with an embedded HSS diabetes study to illustrate the integration of program specific data, electronic health records, and health care system data infrastructure. To compare diabetes outcomes across four evidenced-based programs, a control group was developed from EHR data using propensity score matching. Mixed effect adjusted models were used to estimate reductions in hemoglobin A1c (HbA1c) and body weight. RESULTS: Adjusted analyses using an EHR derived comparison group demonstrated significantly different findings than unadjusted pre to post analyses. The embedded HSS study indicates that appropriate statistical methods, staff with required expertise, and integration with health system data infrastructure are needed to develop timely and rigorous HSS outcomes that effectively improve patient care. CONCLUSIONS: Embedded HSS has the potential to inform value-based care models and contribute to evidence-based medicine approaches that improve patient care. Although developing system wide integrated data structures and staff with the appropriate skills requires substantial effort, the outcome is more reliable evaluations that lead to higher quality and higher value care. IMPLICATIONS: Health care delivery organizations can improve patient care by dedicating resources to embed HSS into its routine operations.

Innovative Population Health Model Associated With Reduced Emergency Department Use And Inpatient Hospitalizations.

Population health strategies that improve access to health care and address social determinants of health may reduce the use of costly emergency services. Here we describe a strategy adopted by Baylor Scott & White Health to reduce rising rates of emergency department use and inpatient hospitalizations in an underserved Dallas community that is home to many people with low socioeconomic status. Baylor Scott & White partnered with the Dallas Park and Recreation Department to create a level-three primary care clinic integrating wellness and prevention programs in a city recreational center. The clinic, known as the Baylor Scott & White Health and Wellness Center, exemplifies the integration of social determinants of health within a population health strategy. Emergency department (ED) and inpatient care use was examined over twelve months after initiation of services at the center. People who used the center's services showed a reduction in ED use of 21.4 percent and a reduction in inpatient care use of 36.7 percent, with an average cost decrease of 34.5 percent and 54.4 percent, respectively. These data support the use of population health strategies to reduce the use of emergency services.