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Age Specific Peak Expiratory Flow Nomogram in Children.

Mahfooz Ahmed1, Jeetendra Gavhane2, Sorabh Goel3

  • 1Department of Pediatrics, MGM Hospital, Kamothe, Navi Mumbai, Maharashtra, India. dr.mahfooz85@gmail.com.

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Summary

This study developed peak expiratory flow rate (PEFR) nomograms for children aged 5-12 in a suburban area. Height was the most significant factor in predicting PEFR, leading to specific regression equations for boys and girls.

Keywords:
Mini Wright flow meterPEFRSuburban population

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Area of Science:

  • Pediatric Pulmonology
  • Respiratory Physiology
  • Biostatistics

Background:

  • Establishing normative data for lung function is crucial for diagnosing respiratory conditions in children.
  • Peak expiratory flow rate (PEFR) is a key indicator of airflow obstruction.
  • Previous studies have shown variations in PEFR based on anthropometric factors.

Purpose of the Study:

  • To determine a peak flow rate nomogram for healthy children aged 5 to 12 years in a suburban population.
  • To establish reference values for PEFR based on age, sex, weight, and height.
  • To provide a tool for assessing and monitoring airway obstruction in pediatric populations.

Main Methods:

  • A cross-sectional study involving 5000 healthy school children.
  • Peak expiratory flow rate (PEFR) was measured using a Mini-Wright flow meter.
  • Linear and multiple regression analyses were performed using age, weight, and height data.

Main Results:

  • Height demonstrated a stronger correlation with PEFR compared to weight.
  • Regression equations were derived for boys (PEFR = 3.29 * Height - 218.38) and girls (PEFR = 3.25 * Height - 216.49).
  • These equations allow for the prediction of PEFR based on height in centimeters.

Conclusions:

  • Region-specific nomograms for PEFR can be determined using height as a primary predictor.
  • These nomograms are valuable for assessing the severity of airway obstruction in children.
  • Monitoring airway obstruction can be improved by utilizing these age, sex, weight, and height-specific reference values.