Centro Nacional de Epidemiologia, Area de epidemiologia ambiental y cáncer, Madrid, Spain.
Int J Environ Health Res. 2010 Apr;20(2):129-40. doi: 10.1080/09603120903456810.
The aim of this paper was to analyse the effect of particulate matter PM(2.5), a recent air quality guideline value for the protection of health, on hospital admissions in Madrid, Spain. This dependent variable was used as a measure against the daily number of emergency hospital admissions from 2003-2005. The causes analysed were: all causes, respiratory and circulatory. The independent variables were daily records of PM(2.5), PM(10), NO(2), NO(x), SO(2) and O(3). Seasonalities, trend, flu epidemics, noise and pollen were used as control variables. Poisson Regression Models were performed to calculate the Relative Risk (RR) and the Attributable Risk (AR). The function relationship with hospital admissions was linear and without threshold. The RR for an increase of 25 microg/m(3) in PM(2.5) concentrations was 1.07 IC 95% (1.05 1.09) for all causes; for circulatory was 1.08 IC 95%: (1.03 1.13) and for respiratory was 1.07 IC 95% (1.02 1.11). PM(2.5) concentrations were the only primary pollutant that showed a statistical association with hospital admissions in Madrid.
本文旨在分析近期空气质量指导值 PM(2.5) 对西班牙马德里地区医院入院人数的影响。这一因变量是用来衡量 2003 年至 2005 年期间每日急诊入院人数的。分析的原因有：所有原因、呼吸道和循环系统。自变量为每日 PM(2.5)、PM(10)、NO(2)、NO(x)、SO(2)和 O(3)记录。季节性、趋势、流感疫情、噪音和花粉被用作控制变量。采用泊松回归模型计算相对风险 (RR) 和归因风险 (AR)。与医院入院人数的函数关系呈线性且无阈值。PM(2.5)浓度每增加 25μg/m(3)，总入院的 RR 为 1.07 IC 95% (1.05 1.09)；循环系统的 RR 为 1.08 IC 95%：(1.03 1.13)，呼吸道的 RR 为 1.07 IC 95% (1.02 1.11)。PM(2.5)浓度是唯一与马德里地区医院入院人数呈统计学关联的主要污染物。
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