Improving population health requires a focus on neighborhoods with high rates of illness. We aimed to reduce hospital days for children from two high-morbidity, high-poverty neighborhoods in Cincinnati, Ohio, to narrow the gap between their neighborhoods and healthier ones. We also sought to use this population health improvement initiative to develop and refine a theory for how to narrow equity gaps across broader geographic areas. We relied upon quality improvement methods and a learning health system approach. Interventions included the optimization of chronic disease management; transitions in care; mitigation of social risk; and use of actionable, realtime data. The inpatient bed-day rate for the two target neighborhoods decreased by 18 percent from baseline (July 2012-June 2015) to the improvement phase (July 2015-June 2018). Hospitalizations decreased by 20 percent. There was no similar decrease in demographically comparable neighborhoods. We see the neighborhood as a relevant frame for achieving equity and building a multisector culture of health.
Inequities "entail a failure to avoid or overcome inequalities that infringe on fairness and human rights norms." 1 Equity gaps are ever present in pediatrics, with neighborhood-to-neighborhood variation in child morbidity paralleling differences in underlying rates of poverty. 2-6 Such gaps have persisted for generations, driven at least in part by upstream social, environmental, and economic challenges (for example, racial discrimination, substandard housing, limited access to health-promoting resources, and socioeconomic deprivation). 7-10 These challenges affect one's ability to access preventive services, adhere to care recommendations, and trust that the health care system has one's interests at heart. [11][12][13] They also trigger morbidity directly via adverse exposures (such as in-home cockroaches and asthma exacerbations) or indirectly via "toxic" stress responses (for example, repetitive stress that alters immunologic functioning). 14,15 With an evolution toward value-based payments, health care systems are focusing more attention on population health outcomes for lower-income patients. Whether driven by mission or margin, health care systems increasingly see themselves as accountable to more than just the people who walk through their doors. [16][17][18][19][20] They recognize that achieving equitable outcomes requires different-often multilevelapproaches, but little has been published about how to do this for, and with, populations.Population health is defined as "the health outcomes of a group of individuals, including the distribution of outcomes within that group." 21(p381) Cincinnati Children's Hospital Medical Center recently committed "to help[ing] ensure Cincinnati's 66,000 children are the healthiest in the nation through strong community partnerships," as part of its strategic plan for 2020. 22(p610)