2016
DOI: 10.14238/pi43.1.2003.1-5
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Airway reversibility in newly developed asthma in children

Abstract: Objective To determine factors influencing forced expiratory volume in one second (FEV 1 ) reversibility in newly developed asthma in children Methods A cross sectional study was done on 52 patients aged 6-14 years who were recruited from a longitudinal study of 161 newly developed asthmatic children. Pre and post-bronchodilator FEV 1 were obtained to calculate the reversibility. Seven patients had to perform peak expiratory volume (PEV) variability before recruited. Some variables including sex, age, height, … Show more

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“…The sample size was determined for a cross-sectional study with 5% significance level (a) and 80% power (b), and estimated to be 50 from minimal difference in previous studies. 10,11 Subjects classified to mild-moderate and severe asthma attack based on clinical finding. The clinical findings of mild-moderate asthma attacks were shortness of breath, no exertion of additional respiratory muscle, spoke in sentence, prefer in sitting position, and a loud expiratory-inspiratory wheeze on auscultation.…”
Section: Methodsmentioning
confidence: 99%
“…The sample size was determined for a cross-sectional study with 5% significance level (a) and 80% power (b), and estimated to be 50 from minimal difference in previous studies. 10,11 Subjects classified to mild-moderate and severe asthma attack based on clinical finding. The clinical findings of mild-moderate asthma attacks were shortness of breath, no exertion of additional respiratory muscle, spoke in sentence, prefer in sitting position, and a loud expiratory-inspiratory wheeze on auscultation.…”
Section: Methodsmentioning
confidence: 99%