Letters

Incidence and prognosis of asthma to age 33

BMJ 1996; 313 doi: https://doi.org/10.1136/bmj.313.7060.814a (Published 28 September 1996) Cite this as: BMJ 1996;313:814
  1. Kim Hinshaw, Consultant obstetrician and gynaecologist
  1. District General Hospital, Sunderland SR4 7TP

    Bleeding in first 27 weeks of pregnancy had protective effect

    EDITOR,—As an obstetrician with mild asthma, I was interested to read David P Strachan and colleagues' paper on their long term cohort study of the incidence and prognosis of asthma.1 Several perinatal factors showed an independent association with asthma in the study population: the odds ratio …

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