Effect of body mass index (BMI) on pulmonary functions in children of 6-14 years of age: A cross-sectional study.

There was a significant negative correlation between the FEV1 (%) and FVC (%) with that of BMI and WHR in contrast to a previously published study, which noted a positive correlation between BMI and pulmonary function test.[ 19 ] Our results are in accordance with studies where BMI and WHR are negatively correlated to pulmonary function test.[ 24 ] Yet another study had reported a significant (or almost significant) inverse correlation with residual FVC, FEV 0.75 , and FEV 1 among boys with over-weight and obesity.[ 16 ] BMI also showed inverse correlations with residual FVC and FEV 1 , both of which were border-line significant.

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