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Effect of body mass index on pulmonary function in children

Authors:

G Liyanage ,

Department of Paediatrics, Faculty of Medical Sciences, University of Sri Jayewardenepura, Colombo South Teaching Hospital, LK
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B D Jayamanne,

National Dengue Control Unit, Ministry of Health, LK
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M Aaqiff,

University Paediatric Unit, Colombo South Teaching Hospital, LK
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D Sriwardhana

University Paediatric Unit, Colombo South Teaching Hospital, LK
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Abstract

Introduction The relationship between obesity or overweight and pulmonary functions has not been investigated in Sri Lankan children previously. Therefore, we aimed to study the effects of obesity/overweight on dynamic lung functions in healthy school children in Sri Lanka.  

Methods This cross sectional study was carried out among healthy school children. They were categorised into ‘obese/overweight’ group (BMI > 85th percentile) and ‘normal weight’ group (BMI 5th -85th percentile).  Forced vital capacity (FVC), forced expiratory volume in one second (FEV1) and forced expiratory flow at 25-75% (FEF 25-75%) were used as measures of ventilatory function.  

Results 

 Of 275 children 55 (20%) were ‘obese/overweight’. BMI has no significant relationship to any of the pulmonary function parameters. However, in contrast to what is expected, mean values of FVC, FEV1  and FEF 25-75% were lower in ‘normal weight’ group (Table 2).

Conclusions No significant difference was detected in spirometry parameters between obese/overweight and normal weight school children in our study.    

DOI: http://doi.org/10.4038/cmj.v61i4.8382
How to Cite: Liyanage, G. et al., (2016). Effect of body mass index on pulmonary function in children. Ceylon Medical Journal. 61(4), pp.163–166. DOI: http://doi.org/10.4038/cmj.v61i4.8382
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Published on 30 Dec 2016.
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