Registers in general practice give cumulative rather than point prevalenceBMJ 1996; 313 doi: https://doi.org/10.1136/bmj.313.7060.815 (Published 28 September 1996) Cite this as: BMJ 1996;313:815
- Anna Livingstone, General practitioner
- Limehouse Practice, Gill Street Health Centre, London E14 8HQ
EDITOR,—In a way I am relieved that David P Strachan and colleagues found a 43% cumulative incidence of reported asthma and wheeze by age 33 in their analysis of the 1958 cohort of the British national child development study.1 This is in addition to the reported prevalence of asthma and chronic obstructive pulmonary disease of around 30% found in adults in a screening study in general practice …
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