Journal
NATURE MEDICINE
Volume 27, Issue 3, Pages 463-+Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41591-020-01214-4
Keywords
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Funding
- Wellcome Trust [205177/Z/16/Z]
- Office of the Director of the National Institutes of Health [DP5OD26429]
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The concept of urban health advantages overlooks heterogeneity in health outcomes across cities. Analysis of data from the SALURBAL project in Latin America reveals substantial differences in life expectancy and causes of death, with modifiable factors such as education, water access and sanitation playing key roles in urban health policies.
The concept of a so-called urban advantage in health ignores the possibility of heterogeneity in health outcomes across cities. Using a harmonized dataset from the SALURBAL project, we describe variability and predictors of life expectancy and proportionate mortality in 363 cities across nine Latin American countries. Life expectancy differed substantially across cities within the same country. Cause-specific mortality also varied across cities, with some causes of death (unintentional and violent injuries and deaths) showing large variation within countries, whereas other causes of death (communicable, maternal, neonatal and nutritional, cancer, cardiovascular disease and other noncommunicable diseases) varied substantially between countries. In multivariable mixed models, higher levels of education, water access and sanitation and less overcrowding were associated with longer life expectancy, a relatively lower proportion of communicable, maternal, neonatal and nutritional deaths and a higher proportion of deaths from cancer, cardiovascular disease and other noncommunicable diseases. These results highlight considerable heterogeneity in life expectancy and causes of death across cities of Latin America, revealing modifiable factors that could be amenable to urban policies aimed toward improving urban health in Latin America and more generally in other urban environments. City-level analysis of data from the SALURBAL project shows vast heterogeneity in life expectancy across cities within the same country, in addition to substantive differences in causes of death among nine Latin American countries, revealing modifiable factors that could be leveraged by municipal-level policies aimed toward improving health in urban environments.
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