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Real-World M3-BREATHE: Toward Multimodal Mobile Monitoring of Behaviour, Respiration, and Exposures for Treatment and Health Evaluation
Published on: June 5, 2026
[Air pollution and mortality in the elderly in Rio de Janeiro: a time-series analysis]
Regina Paiva Daumas1, Gulnar Azevedo e Silva Mendonça, Antonio Ponce de León
1Departamento de Epidemiologia, Instituto de Medicina Social, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brasil. rpaiva@saude.rj.gov.br
Abstract:
This study investigates the association between particulate air pollution and mortality from cardiovascular and respiratory diseases among the elderly in the city of Rio de Janeiro. Death counts, levels of total suspended particles (TSP), and meteorological data were obtained from secondary databases. Daily counts of deaths and daily TSP levels from 1990 to 1993 were analyzed in Poisson regression models adjusted for long-term temporal trends, seasonality, weekdays, temperature, and humidity. For an increase in TSP levels from the 10th to the 90th percentile (104.7 microg/m3), the relative risks for mortality in elderly people from cardiovascular and respiratory diseases were 1.04 (95%CI: 0.96-1.13) and 1.10 (95%CI: 0.97-1.26) respectively. Although an upward trend in risk was observed, the associations were not statistically significant, which could be explained partially by the small number of pollution measures available for the period analyzed.
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