Prevalence and factors associated with exercise-induced bronchospasm among rural school children in Ilesa, Nigeria.

Autor:	Kuti BP; Department of Paediatrics, Wesley Guild Hospital, Ilesa; Department of Paediatrics and Child Health, Obafemi Awolowo University, Ile-Ife, Nigeria., Kuti DK; Department of Paediatrics, Wesley Guild Hospital, Ilesa, Nigeria., Omole KO; Department of Paediatrics, Wesley Guild Hospital, Ilesa, Nigeria., Mohammed LO; Department of Paediatrics, Wesley Guild Hospital, Ilesa, Nigeria., Ologun BG; Department of Paediatrics, Wesley Guild Hospital, Ilesa, Nigeria., Oso BI; Department of Paediatrics, Wesley Guild Hospital, Ilesa, Nigeria.
Jazyk:	angličtina
Zdroj:	The Nigerian postgraduate medical journal [Niger Postgrad Med J] 2017 Apr-Jun; Vol. 24 (2), pp. 107-113.
DOI:	10.4103/npmj.npmj_46_17
Abstrakt:	Background: Exercise-induced bronchospasm (EIB) assessed using changes in peak expiratory flow rates (PEFRs) to free range exercise is a relatively cheap way of screening for asthma in resource-poor centres where children with asthma are often undiagnosed and poorly managed. This study sets out to determine the prevalence and factors associated with EIB among rural schoolchildren in Ilesa, Nigeria. Subjects and Methods: Children aged 8-16 years from two middle schools in rural Ilesa were selected by multistage sampling. Their sociodemographic characteristics and personal/family history of asthma and allergies were obtained. The children had their PEFR measured before, 5, 10 and 15 min after 6-8 min of free running exercise to achieve 80% of their maximal pulse rate. EIB was defined as change in PEFR expressed as a percentage of the pre-exercise value ≥15%. The prevalence and factors associated with EIB were determined. Results: The mean (standard deviation) age of the 250 study participants was 12.5 (1.5) years (M: F 0.9:1) None of the children had previously been diagnosed with asthma. The prevalence of EIB was 9.2%, 6.4% and 4.0% at 5, 10 and 15 min post-exercise, respectively. Household poultry birds, personal history of allergies, wheeze in the past 12 months and family history of asthma were associated with EIB (P < 0.05); only wheezing in the past 12 months independently predicted EIB (odds ratio = 6.343; 95% confidence interval = 2.040-8.798; P= 0.020). Conclusion: The prevalence of EIB among rural schoolchildren in Ilesa was 9.2%. EIB was associated with the history of allergies and wheeze and presence of household poultry birds. We recommend routine screening of these children for early diagnosis and good asthma symptom control.
Databáze:	MEDLINE
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