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Lung function tests in normal Indian children

R V Chowgule1, V M Shetye, J R Parmar

  • 1Department of Chest Medicine, Bombay Hospital Institute of Medical Science.

Indian Pediatrics
|February 1, 1995
PubMed
Summary
This summary is machine-generated.

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This study measured lung function in 632 healthy children aged 6-15 in Bombay. Height is the most significant factor for predicting lung capacity in children, more so than age or weight.

Area of Science:

  • Pediatric Pulmonology
  • Respiratory Physiology

Background:

  • Pulmonary function assessment is crucial for evaluating respiratory health in children.
  • Establishing normative data for lung function parameters is essential for accurate clinical interpretation.

Purpose of the Study:

  • To determine lung function parameters in healthy Indian children.
  • To investigate the correlation of lung function with age, height, and weight.
  • To identify the most significant predictor of lung function in children.

Main Methods:

  • Computerized spirometry was used to measure forced vital capacity, forced expiratory volume in one second, peak expiratory flow, mid-expiratory flow, and maximum voluntary ventilation.
  • Data from 632 healthy children (aged 6-15) in Bombay were analyzed.
  • Pulmonary function data were stratified by sex, height, and age, with stepwise regression analysis.

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Main Results:

  • Lung function variables showed a linear positive correlation with height and age.
  • Forced vital capacity and forced expiratory volume in one second increased significantly after 150 cm height.
  • Height was the most significant independent variable explaining variance in lung function parameters.

Conclusions:

  • Height is the most critical parameter for clinical evaluation of lung function in children.
  • Standard lung function equations should prioritize height as the primary predictor.
  • Sex differences exist in certain lung function parameters, particularly at specific age and height thresholds.