Conceptual framework of the Controlling Asthma in American Cities Project

Community-based survey as a basis for evidence-based public health: children living in Upper Silesian Industrial Zone

OBJECTIVE

The aim of the study was to estimate changes in the prevalence of respiratory diseases and disorders between 2003/2004 and 2011/2012 in 13-16 years old children living in Bytom, one of the biggest cities in the Silesia agglomeration and provide the evidence for local policy makers.

METHODS

Data from two cross-sectional surveys, based on the Polish version of the International Study of Allergy and Asthma in Childhood (ISAAC) questionnaire, conducted in 2003/2004 and 2011/2012 was used. Response rate in the first and the second survey was 68% and 35%, respectively. The number of analyzed observations was 4,041 and 707 from the first and the second survey. The selection bias was controlled with the propensity score matching and potential determinants of analyzed respiratory diseases and disorders were controlled in the multivariable logistic regression model.

RESULTS

We found statistically significant increase in asthma ever diagnosed by medical doctor (4.5% vs. 9.6%; p < 0.01), seizures of dyspnea (8.2% vs. 27.7%; p < 0.01), and chest wheeze (9.6% vs. 19.2%; p < 0.01).

CONCLUSION

Our study revealed significant increase in the prevalence of respiratory diseases and disorders after 8 years in adolescents living in the Upper Silesian Industrial Zone. This is a relevant finding which provides the evidence for decision makers in the scope of local public health policies.

Quality Improvement-Driven Reduction in Countywide Medicaid Acute Asthma Health Care Utilization

OBJECTIVE

This study evaluates the impact of a coordinated effort by an urban pediatric hospital and its associated accountable care organization to reduce asthma-related emergency department (ED) and inpatient utilization by a large, countywide Medicaid patient population.

METHODS

Multiple evidence-based interventions targeting general pediatric asthma care and high health care utilizers were implemented using standardized quality improvement methodologies. Annual asthma ED and inpatient utilization rates by 2- to 18-year-old members of an accountable care organization living in the surrounding county (>140,000 eligible members in 2016), adjusted per 1000 children from 2008 through 2016, were analyzed using Poisson regression. We compared these ED utilization rates to national rates from 2006 to 2014.

RESULTS

Asthma ED utilization fell from 18.1 to 12.9 visits/1000 children from 2008 to 2016, representing a 28.7% reduction, with an average annual decrease of 3.9% (P < .001), during a time when national utilization was increasing. Asthma inpatient utilization did not change significantly during the study period.

CONCLUSIONS

Asthma-related ED utilization was significantly reduced in a large population of primarily urban, minority, Medicaid-insured children by implementing a multimodal asthma quality improvement program. With adequate support, a similar approach could be successful in other communities.

Maternal intimate partner violence exposure, child cortisol reactivity and child asthma

Psychosocial stressors like intimate partner violence (IPV) exposure are associated with increased risk of childhood asthma. Longitudinal studies have not investigated the role of hypothalamic-pituitary-adrenal (HPA) axis reactivity (and associated alterations in cortisol release) in the child IPV exposure-asthma association. We sought to investigate this association, and to assess whether this relationship differs by child HPA reactivity. This secondary analysis used longitudinal cohort data from the Family Life Project. Participants included 1,292 low-income children and mothers; maternal interview and child biomarker data, including maternal report of IPV and child asthma, and child salivary cortisol obtained with validated stress reactivity paradigms, were collected when the child was 7, 15, 24, 35, and 48 months. Using structural equation modeling, maternal IPV when the child was 7 months of age predicted subsequent reports of childhood asthma (B=0.18, p=.002). This association differed according to the child's HPA reactivity status, with IPV exposed children who were HPA reactors at 7 and 15 months of age--defined as a ≥10% increase in cortisol level twenty minutes post peak arousal during the challenge tasks and a raw increase of at least .02μg/dl--being significantly at risk for asthma (7 months: B=0.17, p=.02; 15 months: B=0.17, p=.02). Our findings provide support that children who are physiologically reactive are the most vulnerable to adverse health outcomes when faced with environmental stressors.

Community-based interventions in asthma

Community and public health interventions provide potentially powerful means of decreasing morbidity, hospitalizations, emergency room visits, and mortality from asthma. This chapter thus provides an overview of community-based interventions, which have been demonstrated to be effective-and/or ineffective-in reducing the burden of disease, including development of asthma coalitions, interventions for both provider and patient education, environmental controls to reduce exposure to asthma triggers, and institutional policy and systems change. Perhaps most important is the demonstrated effect of integrated, comprehensive approaches to asthma management and control. A multidisciplinary approach spanning T1 through T4 translational research, coupled with public health activities is promising and has already demonstrated success in reducing the burden of disease.

Family and home asthma services across the Controlling Asthma in American Cities Project

Asthma is among the most common chronic childhood diseases, affecting 6.8 million children nationwide. The highest rates of morbidity and mortality associated with the disease occur among those living in the inner city. Because asthma is a complex disease affected by physiological, social, environmental, and behavioral factors, interventions to reduce its morbidity burden need to address multiple determinants of health. In response to this need, the Centers for Disease Control and Prevention developed a multisite cooperative agreement for the Controlling Asthma in American Cities Project (CAAC), with the primary goal of developing innovative, effective community-based interventions. All CAAC sites found a need for family and home asthma services (FHAS) and developed multicomponent (e.g., asthma self-management, social services, coordinated care) and multitrigger environmental interventions. This paper presents a synthesis of key program variables and process indicators for six CAAC FHAS interventions for consideration by communities, coalitions, or programs planning to implement similar activities.

Considerations and challenges for planning a public health approach to asthma

Addressing asthma from a public health perspective is a relatively new concept for which the literature provides little guidance. A public health approach seeks to decrease the burden of asthma and improve health outcomes at the population level, such as communities, cities, or states, by reaching large numbers of individuals with effective interventions and at reasonable cost. Projects designed to achieve a measureable impact at the population level are fundamentally different from projects or interventions designed to improve outcomes among individuals. This paper uses the experience of the Controlling Asthma in American Cities Project and a review of the relevant literature to explore some of the unique questions and considerations that are implicit when planning large-scale asthma projects intended to improve population outcomes. The paper is intended to inform decision making by local and state government agencies, managed care organizations, health systems, community coalitions, and funders. Analysis of asthma and other chronic disease projects aiming to achieve population-level impact is an area for continued public health research.

A model-driven approach to qualitatively assessing the added value of community coalitions

Community-based coalitions are commonly formed to plan and to carry out public health interventions. The literature includes evaluations of coalition structure, composition, and functioning; evaluations of community-level changes achieved through coalition activities; and the association between coalition characteristics and various indicators of success. Little information is available on the comparative advantage or "added value" of conducting public health interventions through coalitions as opposed to less structured collaborative mechanisms. This paper describes a qualitative, iterative process carried out with site representatives of the Controlling Asthma in American Cities Project (CAACP) to identify outcomes directly attributable to coalitions. The process yielded 2 complementary sets of results. The first were criteria that articulated and limited the concept of "added value of coalitions". The criteria included consensus definitions, an organizing figure, a logic model, and inclusion/exclusion criteria. The second set of results identified site-specific activities that met the definitional criteria and were, by agreement, examples of CAACP coalitions' added value. Beyond the specific findings relevant to the added value of coalitions in this project, the use of a social ecological model to identify the components of added value and the placement of those components within a logic model specific to coalitions should provide useful tools for those planning and assessing coalition-based projects.