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  • Title: Asthma in schoolchildren. Demographic associations and peak expiratory flow rates compared in children with bronchitis.
    Author: Hamman RF, Halil T, Holland WW.
    Journal: Br J Prev Soc Med; 1975 Dec; 29(4):228-38. PubMed ID: 1220834.
    Abstract:
    The frequency of asthma in 10 971 school-children between the ages of 5 and 14 years was reported by their parents to be 3-8%. Of these, 20-7% were said to have had bronchitis, 5-9% pneumonia, and 4-7% eczema. Asthma was reported more commonly in boys than girls and was greatest in children of social classes I and II. One-third of the children were reported to have their first attack before the age of 2 years. Few (18%) first attacks started after the age of 5 years. There was no evidence that bronchitis predisposed to the later development of asthma, or vice versa. Within each age-sex group children with a history of asthma had lower peak expiratory flow rates than children who gave no such history. These diffences in PEFR were greater than for children with a history of bronchitis.
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