Tod Mijanovich

Neighborhood Effects on Health: Exploring the Links and Assessing the Evidence

This article explores the possible causal pathways through which neighborhoods might affect health and then reviews the existing evidence. Although methodological issues make the literature inconclusive, the authors offer a provisional hypothesis for how neighborhoods shape health outcomes. They hypothesize that neighborhoods may primarily influence health in two ways: first, through relatively short-term influences on behaviors, attitudes, and health-care utilization, thereby affecting health conditions that are most immediately responsive to such influences; and second, through a longer-term process of “weathering,” whereby the accumulated stress, lower environmental quality, and limited resources of poorer communities, experienced over many years, erodes the health of residents in ways that make them more vulnerable to mortality from any given disease. Finally, drawing on the more extensive research that has been done exploring the effects of neighborhoods on education and employment, the authors suggest several directions for future research.

Case finding for patients at risk of readmission to hospital: development of algorithm to identify high risk patients

Abstract Objective To develop a method of identifying patients at high risk of readmission to hospital in the next 12 months for practical use by primary care trusts and general practices in the NHS in England. Data sources Data from hospital episode statistics showing all admissions in NHS trusts in England over five years, 1999-2000 to 2003-4; data from the 2001 census for England. Population All residents in England admitted to hospital in the previous four years with a subset of “reference” conditions for which improved management may help to prevent future admissions. Design Multivariate statistical analysis of routinely collected data to develop an algorithm to predict patients at highest risk of readmission in the next 12 months. The algorithm was developed by using a 10% sample of hospital episode statistics data for all of England for the period indicated. The coefficients for 21 most powerful (and statistically significant) variables were then applied against a second 10% test sample to validate the findings of the algorithm from the first sample. Results The key factors predicting subsequent admission included age, sex, ethnicity, number of previous admissions, and clinical condition. The algorithm produces a risk score (from 0 to 100) for each patient admitted with a reference condition. At a risk score threshold of 50, the algorithm identified 54.3% of patients admitted with a reference condition who would have an admission in the next 12 months; 34.7% of patients were “flagged” incorrectly (they would not have a subsequent admission). At risk score threshold levels of 70 and 80, the rate of incorrectly “flagged” patients dropped to 22.6% and 15.7%, but the algorithm found a lower percentage of patients who would be readmitted. The algorithm is made freely available to primary care trusts via a website. Conclusions A method of predicting individual patients at highest risk of readmission to hospital in the next 12 months has been developed, which has a reasonable level of sensitivity and specificity. Using various assumptions a “business case” has been modelled to demonstrate to primary care trusts and practices the potential costs and impact of an intervention using the algorithm to reduce hospital admissions.

Context Matters: A Community-Based Study of Maternal Mental Health, Life Stressors, Social Support, and Children's Asthma

OBJECTIVE. Recent national survey data indicate an overall asthma prevalence of 12.2% for children who are younger than 18 years. Previous research in clinical samples of children with asthma suggests that their mothers are at greater risk for symptoms of depression. We describe the relationship between maternal symptoms of depression and having a child with asthma in a community-based sample. METHODS. After a school-based ascertainment of asthma and asthma symptoms in 15 low-income, racially/ethnically diverse public elementary schools, 1149 eligible mothers agreed to participate in a longitudinal study. Mothers either had a child with previously diagnosed asthma or a child with symptoms consistent with possible asthma or were in the randomly selected comparison group in which no child in the household had asthma. During the first interview, mothers responded to questions about their own life stressors, supports and mental health, and their childrens health. RESULTS. In bivariate analyses of a community-based sample of children who share low-income neighborhoods, mothers of children with diagnosed or with possible undiagnosed asthma had more symptoms of depression than did mothers of children who have no asthma. Mothers of children with diagnosed or with possible undiagnosed asthma also experienced more life stressors than did mothers of children without asthma. Using nested linear regression, we estimated a model of maternal symptoms of depression. Most of the variation in Center for Epidemiologic Studies–Depression score was accounted for by life stressors and social support. There were no independent effects of either asthma status or asthma status–specific child health status on maternal symptoms of depression. CONCLUSION. Children who are under care for chronic conditions such as asthma live and manage their illness outside the clinical setting. Their social context matters, and maternal mental health is related to their childrens physical health. Although having a child with asthma may be “just” another stressor in the mothers social context, complex treatment plans must be followed despite the many other pressures of neighborhood and family lives.

Racial and ethnic disparities in diagnosed and possible undiagnosed asthma among public-school children in Chicago

OBJECTIVES We examined racial and ethnic disparities in the total potential burden of asthma in low-income, racially/ethnically heterogeneous Chicago schools. METHODS We used the Brief Pediatric Asthma Screen Plus (BPAS+) and the Spanish BPAS+, validated, caregiver-completed respiratory questionnaires, to identify asthma and possible asthma among students in 14 racially/ethnically diverse public elementary schools. RESULTS Among 11490 children, we demonstrated a high lifetime prevalence (12.2%) as well as racial and ethnic disparities in diagnosed asthma, but no disparities in prevalences of possible undiagnosed asthma. Possible asthma cases boost the total potential burden of asthma to more than 1 in 3 non-Hispanic Black and Puerto Rican children. CONCLUSIONS There are significant racial and ethnic disparities in diagnosed asthma among inner-city schoolchildren in Chicago. However, possible undiagnosed asthma appears to have similar prevalences across racial/ethnic groups and contributes to a high total potential asthma burden in each group studied. A better understanding of underdiagnosis is needed to address gaps in asthma care and intervention for low-income communities.

Assessment of a government-subsidized supermarket in a high-need area on household food availability and children's dietary intakes.

OBJECTIVE To assess the impact of a new government-subsidized supermarket in a high-need area on household food availability and dietary habits in children. DESIGN A difference-in-difference study design was utilized. SETTING Two neighbourhoods in the Bronx, New York City. Outcomes were collected in Morrisania, the target community where the new supermarket was opened, and Highbridge, the comparison community. SUBJECTS Parents/caregivers of a child aged 3-10 years residing in Morrisania or Highbridge. Participants were recruited via street intercept at baseline (pre-supermarket opening) and at two follow-up periods (five weeks and one year post-supermarket opening). RESULTS Analysis is based on 2172 street-intercept surveys and 363 dietary recalls from a sample of predominantly low-income minorities. While there were small, inconsistent changes over the time periods, there were no appreciable differences in availability of healthful or unhealthful foods at home, or in childrens dietary intake as a result of the supermarket. CONCLUSIONS The introduction of a government-subsidized supermarket into an underserved neighbourhood in the Bronx did not result in significant changes in household food availability or childrens dietary intake. Given the lack of healthful food options in underserved neighbourhoods and need for programmes that promote access, further research is needed to determine whether healthy food retail expansion, alone or with other strategies, can improve food choices of children and their families.

Calorie Labeling, Fast Food Purchasing and Restaurant Visits

Obesity is a pressing public health problem without proven population‐wide solutions. Researchers sought to determine whether a city‐mandated policy requiring calorie labeling at fast food restaurants was associated with consumer awareness of labels, calories purchased and fast food restaurant visits.

Which “broken windows” matter? school, neighborhood, and family characteristics associated with youths’ feelings of unsafety

Young people’s fears of victimization and feelings of unsafety constitute a serious and pervasive public health problem and appear to be associated with different factors than actual victimization. Our analysis of a population-based telephone survey of youths aged 10–18 years in five economically distressed cities and their suburbs reveals that a substantial minority of youths feel unsafe on any given day, and that an even greater number feel unsafe in school. While some traditional predictors of victimization (such as low socioeconomic status) were associated with feeling unsafe, perceived school disorder was the major factor associated with such feelings. Disorderliness may thus be the school’s version of “broken windows,” which serve to signal to students a lack of consistent adult concern and oversight that can leave them feeling unsafe. We suggest that fixing the broken windows of school disorderliness may have a significant, positive impact on adolescents’ feelings of safety.

Potential Effect of the New York City Policy Regarding Sugared Beverages

The authors estimate how much caloric intake could be reduced by limiting portion sizes of sugar-sweetened beverages to 16 oz.

Dietary Variety Is Inversely Associated with Body Adiposity among US Adults Using a Novel Food Diversity Index

BACKGROUND Consuming a variety (vs. monotony) of energy-poor, nutrient-dense foods may help individuals adhere to dietary patterns favorably associated with weight control. OBJECTIVE The objective of this study was to examine whether greater healthful food variety quantified using the US Healthy Food Diversity (HFD) index favorably influenced body adiposity. METHODS Men and nonpregnant, nonlactating women aged ≥20 y with two 24-h recalls from the cross-sectional NHANES 2003-2006 (n = 7470) were included in this study. Dietary recalls were merged with the MyPyramid Equivalent database to generate the US HFD index, which ranges from 0 to ∼1, with higher scores indicative of diets with a higher number and proportion of healthful foods. Multiple indicators of adiposity including BMI, waist-to-height ratio, android-to-gynoid fat ratio, fat mass index (FMI), and percentage body fat were assessed across US HFD index quintiles. ORs and 95% CIs were computed with use of multivariable logistic regression (SAS v. 9.3). RESULTS The US HFD index was inversely associated with most adiposity indicators in both sexes. After multivariable adjustment, the odds of obesity, android-to-gynoid ratio >1, and high FMI were 31-55% lower (P-trend < 0.01) among women in quintile 5 vs. quintile 1 of the US HFD index. Among men, the odds of obesity, waist-to-height ratio ≥0.5, and android-to-gynoid ratio >1 were 40-48% lower (P-trend ≤ 0.01) in quintile 5 vs. quintile 1 of the US HFD index. CONCLUSIONS Higher US HFD index values were inversely associated with indicators of body adiposity in both sexes, indicating that greater healthful food variety may protect against excess adiposity. This study explicitly recognizes the potential benefits of dietary variety in obesity management and provides the foundation to support its ongoing evaluation.

Finding the impact in a messy intervention: Using an integrated design to evaluate a comprehensive citywide health initiative

This article uses the evaluation of the Robert Wood Johnson Foundation’s (RWJF) Urban Health Initiative (UHI), a 10-year effort to improve health and safety outcomes in distressed cities, to demonstrate the strength of an evaluation design that integrates theory of change and quasi-experimental approaches, including the use of comparison cities. This paper focuses on the later stages of implementation and, especially, our methods for estimating program impacts. While the theory of change was used to make preliminary identification of intended outcomes, we used the sites’ plans and early implementation to refine this list and revisit our strategy for estimating impacts. Using our integrated design, differences between program and comparison cities are considered impacts only if they were predicted by program theory, local plans for action, and early implementation. We find small, measurable changes in areas of greatest programmatic effort. We discuss the importance of the integrated design in identifying impacts.