Background Some observational and experimental studies have suggested a short‐term relationship between air pollutants and ischaemic stroke; however, the results conflict. Aims The objective of this study was to investigate the association between particulate matter less than 2·5 and 10 microns in aerodynamic diameter, nitrogen dioxide, sulphur dioxide and ozone, and short‐term risk of ischaemic stroke in Lyon, France. Methods The AVC69 study was a multicenter cohort study in which all consecutive adult patients admitted to one of the emergency or neurological departments of the Rhône area for suspicion of stroke were included during a seven‐month period. Only patients with ischaemic stroke living within the study area, composed of Lyon and 18 neighbouring communities with homogenous air pollutants exposure, formed the basis of our study. We adopted a time‐stratified case‐crossover design to analyse the short‐term effect (up to two‐days) of air pollutants on ischaemic stroke incidence. Models were adjusted for temperature, variation of atmospheric pressure, minimal relative humidity, influenza epidemics, pollen count, and holidays. Stratified analyses by gender and class age were performed. Different lag times were analysed. Results  376 patients were included. Mean age was 76·6 years (±13·7). 53·7% were women. No association was observed between air pollutants and short‐term risk of ischaemic stroke after adjustment for main confounding factors. Results remained unchanged whatever the gender or age. Conclusions These results suggest a lack of association between air pollutant exposure and short‐term risk of ischaemic stroke in a French urban area.

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RESUMO• A saúde é um bom indicador de qualidade territorial e nos informa sobre a qualidade do ambiente vivido. A saúde na cidade foi compreendida, por um longo tempo, através das topografias médicas, que puderam evidenciar os riscos de saúde ligados à concepção das cidades. Este artigo visa ilustrar as interações antigas entre cidade e saúde. Num primeiro momento, tratar-se-á da apresentação histó-rica de alguns indicadores de morbidade e de mortalidade, além de alguns fatores de risco. Veremos, em seguida, como a conscientização em relação aos desafios sanitários na cidade pôde influenciar o urbanismo e, através da incorporação do higienismo, como se pôde pensar em preservar a saúde das populações, transformando o seu espaço. Este texto evidenciará o caso da França e da cidade de Lyon.• PALAVRAS-CHAVE • Saúde urbana; medicina; higienismo; Lyon.• ABSTRACT • Health is a good indicator of territorial quality and provides information on the quality of the place of life. Health in the city was early apprehended through medical topographies. They were able to highlight the health risks associated with urban building. This article therefore aims to illustrate the interactions between ancient city and health. Firstly, it will be conducted an historic presentation of some indicators of morbidity and mortality, and also of certain risk factors. Then, we will see how the awareness of urban health issues has influenced urban planning. Through the incorporation of hygienism, we will see how we had thought to preserve people health by transforming their place of life. This text will focus on the case of France and city of Lyons.• KEYWORDS • Urban health; medicine; hygienism; Lyons.

Ce document a été généré automatiquement le 6 avril 2021.La Revue francophone sur la santé et les territoires est mise à disposition selon les termes de la Licence Creative Commons Attribution -Pas d'Utilisation Commerciale -Partage dans les Mêmes Conditions 4.0 International.