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.
CITATION STYLE
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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