Author: Lee, So-lun; Chiu, Shui-seng Susan; Malik, Peiris Joseph S.; Chan, Kwok-hung; Wong, Hing-sang Wilfred; Lau, Yu-lung
Title: Is respiratory viral infection really an important trigger of asthma exacerbations in children? Document date: 2011_3_30
ID: ypkia5x1_7
Snippet: Patient's demographic data, treatment at enrolment, family history of atopy and asthma, and exposure to environmental tobacco smoke were recorded at the time of recruitment. Measurement of lung function using Vitalograph Model 2120 was obtained according to American Thoracic Society recommendations in children who were able to perform spirometry [1] . Skin prick test was done according to the standardized International Study of Asthma and Allergi.....
Document: Patient's demographic data, treatment at enrolment, family history of atopy and asthma, and exposure to environmental tobacco smoke were recorded at the time of recruitment. Measurement of lung function using Vitalograph Model 2120 was obtained according to American Thoracic Society recommendations in children who were able to perform spirometry [1] . Skin prick test was done according to the standardized International Study of Asthma and Allergies in Childhood Phase 2 protocol [12] . Ten aeroallergens including Dermatophagoides pteronyssinus, Dermatophagoides farinae, cat, Alternaria tenuis, mixed tree pollen, mixed grass pollen, dog, cockroach (American and German), and mixed moulds were tested. A wheal diameter of 3 mm greater than the diameter of the negative control was defined as positive response. Children with ≥1 positive responses were defined as atopic.
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