Seasonal variation and time trends in childhood asthma in England and Wales 1975-81

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Abstract

In England and Wales hospital admissions for childhood asthma almost trebled over the period 1975-81. This may have reflected a true increase in the incidence of acute asthma, a swing from primary to hospital care, or both. The trend was not due to a change in diagnostic fashion. Mostly admissions showed a pronounced seasonal variation with fewest admissions in winter, rising in spring and early summer to peak in the autumn. A deep admission trough was present in August. The monthly admission profile was very similar throughout England and Wales, suggesting that major 'trigger' factors were responsible.

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Khot, A., Burn, R., Evans, N., Lenney, C., & Lenney, W. (1984). Seasonal variation and time trends in childhood asthma in England and Wales 1975-81. British Medical Journal, 289(6439), 235–237. https://doi.org/10.1136/bmj.289.6439.235

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