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Lung functions with spirometry: an Indian perspective--I. Peak expiratory flow rates
M B Dikshit1, S Raje, M J Agrawal
1Department of Physiology, MIMER Medical College, Talegaon, Dabhade Dist., Pune - 410 507. mohan_dikshit@hotmail.com
Indian Journal of Physiology and Pharmacology
|May 11, 2005
Summary
Peak expiratory flow rate (PEFR) is a simple lung function test. Indian PEFR values are comparable to other ethnic groups and vary with age and sex.
Area of Science:
- Pulmonary Physiology
- Respiratory Medicine
Background:
- Peak expiratory flow rate (PEFR) is a key indicator of airflow limitation.
- PEFR measurement is a simple, field-deployable procedure using portable devices.
Purpose of the Study:
- To establish normative data for PEFR in the Indian population.
- To formulate regression equations for Indian PEFR values.
Main Methods:
- Analysis of major studies on PEFR across India.
- Formulation of common regression equations for Indian males and females.
Main Results:
- Average PEFR for healthy young Indian males is approximately 500 lpm, and for females, it is around 350 lpm.
- PEFR peaks in early adulthood (18-20 years), is maintained until 30-40 years, and subsequently declines with age.
- Indian PEFR values show favorable comparisons with American and European populations.
Conclusions:
- Established regression equations provide a valuable tool for assessing lung function in Indians.
- PEFR is a reliable and comparable measure of airflow across different ethnic groups.