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Revista chilena de pediatría

Print version ISSN 0370-4106


GONZALEZ, Fernando; ALFARO, Tania  and  HORNA-CAMPOS, Olivia. Infant Mortality in the Metropolitan Region, Chile 2005-2014. Rev. chil. pediatr. [online]. 2020, vol.91, n.1, pp.34-45.  Epub Mar 11, 2020. ISSN 0370-4106.


Infant mortality depends on the economic, social, and cultural level of development of the place of residence.


To describe the infant mortality rates (IMR) and the late infant mortality rates (LIMR) of the Metropolitan Region (MR) communes and to evaluate their trend between 2005 and 2014.

Material and Method:

Ecological study that describes the rates of the 52 communes of the MR. For the analysis, the IMR and LIMR were elaborated for each year and com mune and were compared using population attributable risk (PAR), attributable risk percent (AR%), and rate ratio (RR). Trends were analyzed through the Prais-Winsten model. A value p < 0.05 was considered a statistically significant trend.


The commune ‘Independencia’ presented the hig hest IMR and LIMR with 12.7 and 4.05 per 1000 live births respectively, 1.75 and 2.05 times more compared with the IMR and LIMR of the MR. The commune ‘Las Condes’ and ‘Vitacura’ presented the lowest IMR and LIMR respectively. The IMR trend regarding 2005 increased in Lo Barnechea, Lo Espejo, and Recoleta, and decreased in Las Condes, Macul, Pudahuel and San Bernardo. The LIMR decreased in Peñalolén, Puente Alto, Las Condes, Providencia, San Bernardo, Macul, Pudahuel, Tala- gante, Pedro Aguirre Cerda, and Quilicura, and increased in Peñaflor.


The regional IMR and LIMR hide the slight increase in rates and the persistence of heterogeneity among communes. This forces us to explore the causes of these inequities through future analytical studies.

Keywords : Infant Mortality; Late Infant Mortality; residence; inequity; Chile.

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