Epidemiological survey of childhood asthma in Hefei City, China

XIONG Mei, NI Chen, PAN Jia-Hua, WANG Qiang, ZHENG Li-Lin

Chinese Journal of Contemporary Pediatrics ›› 2013, Vol. 15 ›› Issue (2) : 109-111.

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Chinese Journal of Contemporary Pediatrics ›› 2013, Vol. 15 ›› Issue (2) : 109-111. DOI: 10.7499/j.issn.1008-8830.2013.02.009
CLINICAL RESEARCH

Epidemiological survey of childhood asthma in Hefei City, China

  • XIONG Mei, NI Chen, PAN Jia-Hua, WANG Qiang, ZHENG Li-Lin
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Abstract

OBJECTIVE: To investigate the cumulative prevalence rate, distribution characteristics, epidemic seasons, predisposing factors and current treatment situation of childhood asthma in Hefei City, China. METHODS: In the investigation, stratified cluster random sampling as well as centralized access and separate home visits were applied, and primary screening forms were filled out. Further confirmation was sought in the primary positive cases, according to the diagnostic criteria for asthma. Statistical analysis was performed to determine the cumulative prevalence rate, current treatment situation and predisposing factors for childhood asthma as well as the distribution characteristics of asthma in children of different ages and sexes. RESULTS: The cumulative prevalence rate of childhood asthma was 5.92%, and there was no significant difference between males and females (6.33% vs 5.42%; P>0.05). The cumulative prevalence rate was highest (8.25%) in children aged 3-6 years. Of the children with acute asthma attack, 42.0% suffered attacks during periods of seasonal transition, and 34.4% suffered attacks at midnight. Among the 552 children with a confirmed diagnosis of asthma, 533 (96.6%) developed asthma due to respiratory tract infection and 312 (56.5%) due to weather change. Most asthmatic children (513/552, 92.9%) received treatment with antibiotics, and 492 asthmatic children (89.1%) were treated with systemic hormones. CONCLUSIONS: The cumulative prevalence rate of childhood asthma is 5.92% in Hefei, and the peak age of onset is 3-6 years. Acute asthma attack occurs mostly during periods of seasonal transition and at midnight. Respiratory tract infection and weather change are the main predisposing factors for childhood asthma. Antibiotics and systemic hormones are still widely used in the treatment of asthma.

Key words

Asthma / Epidemiological survey / Cumulative prevalence rate / Child

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XIONG Mei, NI Chen, PAN Jia-Hua, WANG Qiang, ZHENG Li-Lin. Epidemiological survey of childhood asthma in Hefei City, China[J]. Chinese Journal of Contemporary Pediatrics. 2013, 15(2): 109-111 https://doi.org/10.7499/j.issn.1008-8830.2013.02.009

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