Childhood Leukemia in Small Geographical Areas and Proximity to Industrial Sources of Air Pollutants in Three Colombian Cities.

Autor:	Rodriguez-Villamizar LA; Department of Public Health, Universidad Industrial de Santander, Bucaramanga 680002, Colombia., Moreno-Corzo FE; Public Health Observatory of Santander, Fundación Oftalmológica de Santander, Floridablanca 681003, Colombia., Valbuena-Garcia AM; Department of Public Health, Universidad Industrial de Santander, Bucaramanga 680002, Colombia.; Cuenta de Alto Costo, Fondo Colombiano de Enfermedades de Alto Costo, Bogotá 110111, Colombia., Uribe Pérez CJ; Population Based Cancer Registry of the Metropolitan Area of Bucaramanga, Universidad Autónoma de Bucaramanga, Bucaramanga 681003, Colombia., Brome Bohórquez MR; Population Based Cancer Registry of Antioquia, Gobernación de Antioquia, Medellín 050015, Colombia., García García HI; Cancer Institute Las Américas, Medellín 050022, Colombia., Bravo LE; Population Based Cancer Registry of Cali, Universidad del Valle, Cali 760043, Colombia., Ortiz Martínez RG; Public Health Observatory of Santander, Fundación Oftalmológica de Santander, Floridablanca 681003, Colombia., Niederbacher Velásquez J; Department of Pediatrics, Universidad Industrial de Santander, Bucaramanga 68002, Colombia., Osornio-Vargas AR; Department of Pediatrics, University of Alberta, Edmonton, AB T6G 1C9, Canada.
Jazyk:	angličtina
Zdroj:	International journal of environmental research and public health [Int J Environ Res Public Health] 2020 Oct 29; Vol. 17 (21). Date of Electronic Publication: 2020 Oct 29.
DOI:	10.3390/ijerph17217925
Abstrakt:	Acute leukemia is the most common childhood cancer and has been associated with exposure to environmental carcinogens. This study aimed to identify clusters of acute childhood leukemia (ACL) cases and analyze their relationship with proximity to industrial sources of air pollution in three capital cities in Colombia during 2000-2015. Incident ACL cases were obtained from the population cancer registries for the cities of Bucaramanga, Cali, and Medellín. The inventory of industrial sources of emissions to the air was obtained from the regional environmental authorities and industrial conglomerates were identified. The Kulldorf's circular scan test was used to detect city clusters and to identify clusters around industrial conglomerates. Multivariable spatial modeling assessed the effect of distance and direction from the industrial conglomerates controlling for socioeconomic status. We identified industrials sectors within a buffer of 1 km around industrial conglomerates related to the ACL clusters. Incidence rates showed geographical heterogeneity with low spatial autocorrelation within cities. The spatio-temporal tests identified one cluster in each city. The industries located within 1 km around the ACL clusters identified in the three cities represent different sectors. Exposure to air pollution from industrial sources might be contributing to the incidence of ACL cases in urban settings in Colombia.
Databáze:	MEDLINE
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