Journal of urban health : bulletin of the New York Academy of Medicine
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Comparative Study
Separate and Sick: Residential Segregation and the Health of Children and Youth in Metropolitan Statistical Areas.
The purpose of this study was to better understand residential segregation and child/youth health by examining the relationship between a measure of Black-White residential segregation, the index of dissimilarity, and a suite of child and youth health measures in 235 U. S. metropolitan statistical areas (MSAs). MSAs are urban areas with a population of 50,000 or more and adjacent communities that share a high degree of economic and social integration. ⋯ Segregation worsened Black-White health disparities across all four measures, regardless of MSA total and Black population size. Segregation adversely affects the health of Black children in all MSAs and White children in smaller MSAs with large Black populations, and these effects are seen in measures that span all of childhood. Residential segregation may be an important target to consider in efforts to improve neighborhood conditions that influence the health of families and children.
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UrbClim, the urban climate model, is used for short- and long-term projections of climate for Delhi. The projections are performed for RCP8.5 using an ensemble of 11 GCM model outputs. Various heat stress indices were employed to understand the role of urban heat island (UHI) in influencing the present and future urban climate of the city. ⋯ The intensity of heat wave (IHW) for urban land uses increases from 40 °C in reference time frame to 45 °C in short-term projection to 49 °C in far future. These values for non-urban land use were 33 °C during the baseline time period and are expected to increase to 42 °C and 46 °C in near- and far-future time frames. The results clearly indicate the contribution of UHI effects in intensifying the impacts of extreme heat and heat stress in the city.
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To examine the relationships between perceptions of neighborhood environment, sense of community, and self-rated heath, we recruited 1798 people aged 60 years and older living in Hong Kong. With reference to the checklist of the essential features of age-friendly cities developed by the World Health Organization, perceptions of neighborhood environment were assessed using a questionnaire covering physical and social environmental domains, which mapped onto "outdoor spaces and buildings," "transportation," "housing," "social participation," "respect and social inclusion," "civic participation and employment," "communication and information," and "community support and health services." Sense of community was measured by the Brief Sense of Community Scale. Self-rated health was assessed by a single question. ⋯ Among the domains of perceived neighborhood environment, "transportation" and "respect and social inclusion" were the physical and the social environmental domains most strongly associated with sense of community, respectively. In addition, sense of community accounted for part of the relationship between perceived neighborhood environments and self-rated health. The results of this study support the importance of perceived neighborhood environments for the sense that older person has of one's community, and self-rated health of older people which may be enhanced through the improvement of neighborhood environments.
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The world is becoming increasingly urban. For the first time in history, more than 50% of human beings live in cities (United Nations, Department of Economic and Social Affairs, Population Division, ed. (2015)). Rapid urbanization is often chaotic and unstructured, leading to the formation of informal settlements or slums. ⋯ Cochrane Database Syst Rev CD000012, 2012; Brocklehurst et al. BMJ 343:d7400, 2011). In this paper, three case studies are described that support the use of this model in low resource, urban settings.