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. 2013 Mar;20(2):17-24.

Pulmonary Function Studies of Healthy Non-smoking Male University Students of Kolkata, India - Revisited

Amit Bandyopadhyay  1 , Ishita Bhattacharjee, Rishna Dalui, Sangita Pal
Affiliations

Pulmonary Function Studies of Healthy Non-smoking Male University Students of Kolkata, India - Revisited

Amit Bandyopadhyay et al. Malays J Med Sci. 2013 Mar.

Abstract

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.

Keywords: FEV1%; FVC; Indian; PEFR; Pulmonary function.

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Figures

Figure 1:
Figure 1:
Relationship of body height with VC, FVC, and FEV1 in the studied population.
Figure 2:
Figure 2:
Relationship of body height with PEFR in the studied population.
Figure 3:
Figure 3:
Relationship of age with PEFR in the studied population.
Figure 4:
Figure 4:
Plotting of vital capacity – comparison with the values predicted from currently derived equation and the standard norms proposed by Chatterjee et al., (1988).
Figure 5:
Figure 5:
Plotting of forced vital capacity – comparison with the values predicted from currently derived equation and the standard norms proposed by Chatterjee et al., (1988).
Figure 6:
Figure 6:
Plotting of forced expiratory volume in 1 sec – comparison with the values predicted from currently derived equation and the standard norms proposed by Chatterjee et al., (1988).
Figure 7:
Figure 7:
Plotting of FEF25-75%, FEF75-85% and PEFR – comparison with the values predicted from the standard norms prescribed by Chatterjee et al. (1988).
See this image and copyright information in PMC

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