Air pollution during warm weather increases risk of stroke

BMJ 2003; 327 doi: (Published 16 October 2003) Cite this as: BMJ 2003;327:887
  1. Janice Hopkins Tanne
  1. New York

    High levels of air pollution, coupled with warm weather, increase ischaemic and haemorrhagic strokes by about 50%, says a study from Kaohsiung Medical University in Taiwan, published online before print inStroke (

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    Bikers protect themselves from pollution in Kaohsiung


    The study used a crossover approach to evaluate data on 23 179 admissions to hospital for stroke from 1997 to 2000. It used computerised data from Taiwan's national health insurance plan, which covers 96% of the population, and data from six automated pollution monitoring stations in Kaohsiung.

    Kaohsiung, a city of about 1.5 …

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