Departamento de Enfermagem, Instituto de Ciências Naturais e Tecnológicas, Universidade do Estado de Mato Grosso, Cáceres, MT, Brasil.
Rev Saude Publica. 2010 Feb;44(1):121-30. doi: 10.1590/s0034-89102010000100013.
To analyze the impact on human health of exposure to particulate matter emitted from burnings in the Brazilian Amazon region.
This was an ecological study using an environmental exposure indicator presented as the percentage of annual hours (AH%) of PM2.5 above 80 microg/m3. The outcome variables were the rates of hospitalization due to respiratory disease among children, the elderly and the intermediate age group, and due to childbirth. Data were obtained from the National Space Research Institute and the Ministry of Health for all of the microregions of the Brazilian Amazon region, for the years 2004 and 2005. Multiple regression models for the outcome variables in relation to the predictive variable AH% of PM2.5 above 80 microg/m3 were analyzed. The Human Development Index (HDI) and mean number of complete blood counts per 100 inhabitants in the Brazilian Amazon region were the control variables in the regression analyses.
The association of the exposure indicator (AH%) was higher for the elderly than for other age groups (beta = 0.10). For each 1% increase in the exposure indicator there was an increase of 8% in child hospitalization, 10% in hospitalization of the elderly, and 5% for the intermediate age group, even after controlling for HDI and mean number of complete blood counts. No association was found between the AH% and hospitalization due to childbirth.
The indicator of atmospheric pollution showed an association with occurrences of respiratory diseases in the Brazilian Amazon region, especially in the more vulnerable age groups. This indicator may be used to assess the effects of forest burning on human health.
分析人类接触巴西亚马逊地区燃烧产生的颗粒物对健康的影响。
这是一项生态研究，使用环境暴露指标表示 PM2.5 超过 80μg/m3 的年小时百分比（AH%）。因呼吸疾病、分娩而住院的儿童、老年人和中年组的发生率为因呼吸疾病住院的结局变量。数据来自国家空间研究所和卫生部，涵盖了巴西亚马逊地区的所有微观地区，年份为 2004 年和 2005 年。对与预测变量 PM2.5 超过 80μg/m3 的 AH%相关的结局变量进行多元回归模型分析。人类发展指数（HDI）和巴西亚马逊地区每 100 名居民的平均全血细胞计数为回归分析中的控制变量。
暴露指标（AH%）与老年人的相关性高于其他年龄组（β=0.10）。暴露指标每增加 1%，儿童住院率增加 8%，老年人住院率增加 10%，中年组增加 5%，即使在控制了 HDI 和平均全血细胞计数后也是如此。暴露指标与分娩引起的住院之间没有关联。
大气污染指标与巴西亚马逊地区呼吸道疾病的发生有关，尤其是在较脆弱的年龄组。该指标可用于评估森林燃烧对人类健康的影响。
