Pulmonary Function Studies of Healthy Non-smoking Male University Students of Kolkata, India — Revisited
2013
Background: Pulmonary function tests (PFTs) need to be revisited in
light of rapid economic growth and industrial development. Questions
have been raised about the validity of existing population-specific
norms for predicting PFTs, and therefore, the present study aimed to
determine the applicability of existing norms for PFTs in young healthy
non-smoking male university students of Kolkata. Methods: PFTs were
carried out for 87 non-smoking male university students who were
randomly sampled from the University of Calcutta, Kolkata, India.
Results: The PFTs data obtained in this study did not show a
significant variation with that obtained in a previous study.
Significant (P < 0.001) differences in the forced expiratory volume
in 1 s (FEV1%) and peak expiratory flow rate (PEFR) between the two
studies may be attributed to differences in the age and body height,
which exhibited significant correlations with the vital capacity (VC),
forced vital capacity (FVC), FEV1, FEV1%, and PEFR. Regression
equations have been computed to predict PFTs parameters from age and
body height. Conclusion: Pulmonary function in the university students
of Kolkata was found to have remained mostly unchanged in the last 24
years. The equations computed in this study are considered preferable
owing to their substantially smaller standard error of estimate (SEE)
than those proposed in the previous study.
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