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Risk factors among elderly for short term deaths related to high levels of air pollution.

机译：老年人中短期死亡的危险因素与空气污染水平高有关。

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BACKGROUND: Air pollution has been linked to increased rates of mortality, but little is known about individual characteristics related to the increase in risk. AIMS: To examine short term effects of air pollution on daily mortality in elderly people in Bordeaux and compare characteristics of subjects > or =65 years old who died with levels of particulate air pollution. METHODS: Daily mortality data from Bordeaux were used to determine the core model of mortality for the period 1988-97. The air pollution indicator was regressed on the core model of mortality, allowing control of the main effect modifiers and confounding factors of air pollution on the same day. The residual series of this regression model was classified from the lowest to the highest to determine "low level days" and "high level days". A sample of 1469 elderly people in a French cohort study were studied. RESULTS: From 1988 to 1997, 543 subjects died; 55 deaths were during days with low air pollution and 51 during days with high air pollution. Only gender differed significantly according to both types of days, with a proportion of women significantly higher in high air pollution days than men. After adjustment for smoking habits, the odds ratio was 5.2 for women. CONCLUSION: The risk of mortality between women and men was determined on days with "high air pollution levels" above the 50-90th centiles compared to below the 10th centile. No clear pattern was observed between days with low levels of air pollution and the different centiles of exposure.
机译：背景：空气污染与死亡率增加有关，但对与风险增加相关的个人特征知之甚少。目的：研究空气污染对波尔多老年人每日死亡率的短期影响，并比较死于65岁或65岁以上的老人的特征与微粒空气污染水平的关系。方法：使用波尔多的每日死亡率数据确定1988-97年期间的核心死亡率模型。空气污染指标在死亡率的核心模型上进行了回归，可以在同一天控制主要影响因子和空气污染的混杂因素。该回归模型的残差系列从最低到最高分类，以确定“低水平天数”和“高水平天数”。在法国的一项队列研究中，对1469名老年人进行了抽样研究。结果：从1988年到1997年，有543名受试者死亡。在低空气污染的日子里有55人死亡，在高空气污染的日子里有51人死亡。在这两种类型的日子中，只有性别差异显着，在高空气污染日中，女性比例明显高于男性。调整吸烟习惯后，女性的优势比为5.2。结论：在“高空气污染水平”高于50-90百分位数而低于10百分位数的日子，确定了男女之间的死亡风险。在空气污染水平较低的日子与不同百分位数的暴露之间，没有观察到清晰的模式。

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