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Lung function norms in healthy working women.
N Mathur1, S K Rastogi, T Husain
1Epidemiology Division, Industrial Toxicology Research Centre, Lucknow.
Indian Journal of Physiology and Pharmacology
|May 4, 1999
Summary
Pulmonary function testing in healthy women reveals lung function declines with age but increases with height and weight. These findings establish reference values for lung capacity in adult females.
Area of Science:
- Pulmonary Medicine
- Physiology
- Biostatistics
Background:
- Establishing normative data for lung function is crucial for diagnosing respiratory diseases.
- Previous studies have indicated variations in lung capacity based on demographic factors.
Purpose of the Study:
- To develop a linear multiple regression model for pulmonary function in healthy working women.
- To identify the influence of age, height, and weight on lung function parameters.
Main Methods:
- Pulmonary function testing was conducted on 274 healthy working women from various states.
- Linear multiple regression analysis was employed using age, height, and weight as independent variables.
- Forced Vital Capacity (FVC), FEV0.75, and FEV1.0 were measured as dependent variables.
Main Results:
- Significant negative correlations were observed between all lung function parameters and age.
- Positive correlations were found between lung function parameters and height and weight.
- Lung function showed a decline of approximately 0.203 L/decade for FVC, 0.199 L/decade for FEV0.75, and 0.210 L/decade for FEV1.0.
- An increase of 1 cm in height correlated with an increase of 0.0217 L in FVC, 0.0132 L in FEV0.75, and 0.0178 L in FEV1.0.
Conclusions:
- Age, height, and weight are significant predictors of lung function in healthy working women.
- The established regression model provides valuable reference values for assessing pulmonary health in this demographic.
- These findings contribute to understanding physiological changes in lung capacity throughout adult life.