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Is outdoor air pollution associated with physician visits for allergic rhinitis among the elderly in Toronto, Canada?

机译：加拿大多伦多的老年人中，室外空气污染是否与医师就诊过敏性鼻炎有关？

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Background: While a number of studies suggest that air pollution is associated with allergic rhinitis in children, findings among adults have been equivocal. The aim of this study was to examine the relationship between outdoor air pollution and physician visits for allergic rhinitis among individuals >/=65 years of age in Toronto, Canada. Methods: Physician visits were identified by using data from the Ontario provincial health insurance plan that is made available to all residents. Our analyses are based on 52 691 physician visits for allergic rhinitis among individuals >/=65 years of age in the Toronto metropolitan area between 1995 and 2000. Generalized linear models were used to regress daily counts of physician visits against daily measures of gaseous and particulate components of air pollution after controlling for seasonality, potential confounders (temperature, relative humidity, aeroallergens), overdispersion and serial correlation. Results: A large number of comparisons were undertaken, with most showing no statistically significant associations between daily levels of air pollution and the number of physician visits for rhinitis. In contrast, an interquartile increase in the 10-day average of ragweed particles increased the mean number of daily rhinitis consultations by 6.4% (95% CI = 0.7-12.4%). Conclusions: Our findings suggest that outdoor air pollution is a poor predictor of physician visits for allergic rhinitis among the elderly.
机译：背景：虽然许多研究表明，空气污染与儿童过敏性鼻炎有关，但成年人中的发现却模棱两可。这项研究的目的是检查在加拿大多伦多> 65岁的人群中室外空气污染与医生就诊过敏性鼻炎之间的关系。方法：通过使用安大略省所有居民均可获得的安大略省健康保险计划中的数据来确定医师就诊机会。我们的分析基于1995年至2000年在多伦多大都市地区年龄≥65岁的个人中52 691名就诊的过敏性鼻炎医生就诊。使用广义线性模型来将医生就诊的每日次数与气态和颗粒物的每日测量值进行回归在控制了季节性，潜在的混杂因素（温度，相对湿度，空气过敏原），过度分散和序列相关性之后，控制了空气污染的组成部分。结果：进行了大量比较，大多数显示每日空气污染水平与鼻炎医生就诊次数之间无统计学意义的关联。相比之下，豚草颗粒10天平均值的四分位数增加使每日鼻炎咨询的平均次数增加了6.4％（95％CI = 0.7-12.4％）。结论：我们的发现表明，室外空气污染是老年人过敏性鼻炎医师就诊的较差预测指标。

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