Abstract

BLANCO-BECERRA, Luis Camilo et al. Effect of socioeconomic status on the association between air pollution and mortality in Bogota, Colombia. Salud pública Méx [online]. 2014, vol.56, n.4, pp.371-378. ISSN 0036-3634.

Objective. To evaluate the modification effect of socioeconomic status (SES) on the association between acute exposure to particulate matter less than 10 microns in aerodynamic diameter (PM₁₀) and mortality in Bogota, Colombia. Materials and methods. A time-series ecological study was conducted (1998-2006). The localities of the cities were stratified using principal components analysis, creating three levels of aggregation that allowed for the evaluation of the impact of SES on the relationship between mortality and air pollution. Results. For all ages, the change in the mortality risk for all causes was 0.76% (95%CI 0.27-1.26) for SES I (low), 0.58% (95%CI 0.16-1.00) for SES II (mid) and -0.29% (95%CI -1.16-0.57) for SES III (high) per 10µg/m³ increment in the daily average of PM₁₀ on day of death. Conclusions. The results suggest that SES significantly modifies the effect of environmental exposure to PM₁₀ on mortality from all causes and respiratory causes.

Keywords : mortality; socioeconomic status; particulate matter; Bogota; Colombia.

        · abstract in Spanish     · text in English     · English ( pdf )