Peak expiratory flow rate in south Indian children
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Published on: February 9, 2022
S Swaminathan1, P Venkatesan, R Mukunthan
1Tuberculosis Research Centre, Madras.
Insights
This study established normal Peak Expiratory Flow Rate (PEFR) reference values for healthy South Indian children. These findings provide essential data for diagnosing and monitoring obstructive airway diseases in this population.
Area of Science:
- Pediatric Pulmonology
- Respiratory Medicine
- Public Health
Background:
- Peak Expiratory Flow Rate (PEFR) is crucial for managing obstructive airway diseases.
- Existing PEFR reference data is lacking for ethnic South Indian children.
Purpose of the Study:
- To establish normative PEFR data for healthy South Indian children aged 4-15 years.
- To develop prediction equations for PEFR based on anthropometric measurements.
Main Methods:
- Measured PEFR in 345 healthy South Indian children (ages 4-15) using a Wright mini peak flow meter.
- Constructed a nomogram relating PEFR to height.
- Determined sex-specific prediction equations for PEFR using height, age, and weight.
Main Results:
- Developed a PEFR nomogram for South Indian children.
- Provided prediction equations: Boys (height only): PEFR = 4.08 * height (cm) - 284.55. Girls (height only): PEFR = 3.92 * height (cm) - 277.01.
Conclusions:
- The study provides the first PEFR reference data for South Indian children.
- These equations will aid in the clinical assessment of pediatric obstructive airway diseases in this demographic.
Abstract:
PEFR is a simple and reliable way of following patients with bronchial asthma and other obstructive airway diseases. Normal data is available for Caucasian and North Indian children but not for ethnic South Indian children. We, therefore, measured Peak Expiratory Flow Rate (PEFR) in 345 healthy South Indian children aged 4-15 years, using the Wright mini peak flow meter. A nomogram was constructed relating PEFR to height. Prediction equations for PEFR using height alone or height, age and weight were determined for both sexes. The prediction equation for boys based on height alone was PEFR = 4.08 height (cm)--284.55 and for girls was PEFR = 3.92 height (cm)--277.01.
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