Air pollutants and hospital admission due to pneumonia in children: a time series analysis

作者：Vieira de Souza Lais Salgado; Costa Nascimento Luiz Fernando

来源：Revista da Associacao Medica Brasileira, 2016, 62(2): 151-156.

DOI：10.1590/1806-9282.62.02.151

• Pneumonia
• air pollutants
• particulate matter
• nitrogen dioxide
• child health
• time-series studies

Objective: The aim of this study was to estimate the association between exposure to air pollutants and hospitalization for pneumonia among children in a medium-sized city located in the sugar cane plantation region of Sao Paulo State.
Methods: An ecological time-series study was conducted with daily data of hospitalization for pneumonia including children aged 10 years or younger living in Araraquara, state of Sao Paulo, from January 1st, 2010, to November 30th, 2012. To estimate the association between hospitalization due to pneumonia and particulate pollutants with aerodynamic diameter less than 10 mu m, nitrogen dioxide and ozone, relative risks for hospitalization according to a generalized additive model of Poisson regression, with Lags of up to five days, were calculated. A percentage increase (PI) was obtained for relative risk (IRR - increase on relative risk) of hospitalization at each 10 mu g/m(3) increment in each air pollutants adjusted for the remaining.
Results: A total of 234 hospitalizations were recorded during these three years. There was a strong association between hospitalization and PM10 and NO2. The PI in relative risk was 15% to PM10 in Lag 0 and 7% points in Lag 1 for NO2.
Conclusion: There was evidence of the action of air pollutants on hospitalization for pneumonia in a medium-sized city located in a region affected by air pollution from sugarcane burning and the data presented here provide subsidies for the implementation of public policies aiming to decrease this risk.

• 出版日期2016-4