BACKGROUND: This study aimed to evaluate the association between the total suspended particles (TSP) generated from burning sugar cane plantations and the incidence of hospital admissions from hypertension in the city of Araraquara. METHODS: The study was an ecological time-series study. Total daily records of hypertension (ICD 10th I10-15) were obtained from admitted patients of all ages in a hospital in Araraquara, São Paulo State, Brazil, from 23 March 2003 to 27 July 2004. The daily concentration of TSP (microg/m(3)) was obtained using a Handi-Vol sampler placed in downtown Araraquara. The local airport provided daily measures of temperature and humidity. In generalised linear Poisson regression models, the daily number of hospital admissions for hypertension was considered to be the dependent variable and the daily TSP concentration the independent variable. RESULTS: TSP presented a lagged effect on hypertension admissions, which was first observed 1 day after a TSP increase and remained almost unchanged for the following 2 days. A 10 microg/m(3) increase in the TSP 3 day moving average lagged in 1 day led to an increase in hypertension-related hospital admissions during the harvest period (12.5%, 95% CI 5.6% to 19.9%) that was almost 30% higher than during non-harvest periods (9.0%, 95% CI 4.0% to 14.3%). CONCLUSIONS: Increases in TSP concentrations were associated with hypertension-related hospital admissions. Despite the benefits of reduced air pollution in urban cities achieved by using ethanol produced from sugar cane to power automobiles, areas where the sugar cane is produced and harvested were found to have increased public health risk.
BACKGROUND: This study aimed to evaluate the association between the total suspended particles (TSP) generated from burning sugar cane plantations and the incidence of hospital admissions from hypertension in the city of Araraquara. METHODS: The study was an ecological time-series study. Total daily records of hypertension (ICD 10th I10-15) were obtained from admitted patients of all ages in a hospital in Araraquara, São Paulo State, Brazil, from 23 March 2003 to 27 July 2004. The daily concentration of TSP (microg/m(3)) was obtained using a Handi-Vol sampler placed in downtown Araraquara. The local airport provided daily measures of temperature and humidity. In generalised linear Poisson regression models, the daily number of hospital admissions for hypertension was considered to be the dependent variable and the daily TSP concentration the independent variable. RESULTS: TSP presented a lagged effect on hypertension admissions, which was first observed 1 day after a TSP increase and remained almost unchanged for the following 2 days. A 10 microg/m(3) increase in the TSP 3 day moving average lagged in 1 day led to an increase in hypertension-related hospital admissions during the harvest period (12.5%, 95% CI 5.6% to 19.9%) that was almost 30% higher than during non-harvest periods (9.0%, 95% CI 4.0% to 14.3%). CONCLUSIONS: Increases in TSP concentrations were associated with hypertension-related hospital admissions. Despite the benefits of reduced air pollution in urban cities achieved by using ethanol produced from sugar cane to power automobiles, areas where the sugar cane is produced and harvested were found to have increased public health risk.
Authors: Cristiane Maria Galvão Barbosa; Mário Terra-Filho; André Luis Pereira de Albuquerque; Dante Di Giorgi; Cesar Grupi; Carlos Eduardo Negrão; Maria Urbana Pinto Brandão Rondon; Daniel Godoy Martinez; Tânia Marcourakis; Fabiana Almeida dos Santos; Alfésio Luís Ferreira Braga; Dirce Maria Trevisan Zanetta; Ubiratan de Paula Santos Journal: PLoS One Date: 2012-09-27 Impact factor: 3.240
Authors: Mi-Sun Lee; Jing-qing Hang; Feng-ying Zhang; He-lian Dai; Li Su; David C Christiani Journal: Environ Health Date: 2012-03-28 Impact factor: 5.984
Authors: Noah Scovronick; Daniela França; Marcelo Alonso; Claudia Almeida; Karla Longo; Saulo Freitas; Bernardo Rudorff; Paul Wilkinson Journal: Int J Environ Res Public Health Date: 2016-07-11 Impact factor: 3.390
Authors: Colleen E Reid; Michael Brauer; Fay H Johnston; Michael Jerrett; John R Balmes; Catherine T Elliott Journal: Environ Health Perspect Date: 2016-04-15 Impact factor: 9.031
Authors: Paula Roberta da Silva Pestana; Alfésio Luís Ferreira Braga; Ercy Mara Cipulo Ramos; Ariadna Ferraz de Oliveira; Christian Robert Osadnik; Aline Duarte Ferreira; Dionei Ramos Journal: Rev Saude Publica Date: 2017-03-02 Impact factor: 2.106
Authors: W Mueller; M Loh; S Vardoulakis; H J Johnston; S Steinle; N Precha; W Kliengchuay; K Tantrakarnapa; J W Cherrie Journal: Environ Health Date: 2020-07-03 Impact factor: 5.984