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Peak expiratory flow rate. Reference values for Swedish children.

J Bjure, G Dalén, B Kjellman

Acta Paediatrica Scandinavica

|July 1, 1979

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Reference values for peak expiratory flow rate in Swedish children were established using the Wright-McKerrow peak flow meter. Sexes can be combined for analysis, with height being a key predictor.

Area of Science:

Pediatric Pulmonology
Respiratory Physiology

Background:

Establishing normative data for lung function tests is crucial for pediatric respiratory health assessment.
Peak expiratory flow rate (PEFR) is a key indicator of airflow obstruction.

Purpose of the Study:

To establish reference values for peak expiratory flow rate (PEFR) in Swedish children.
To determine the relationship between PEFR and anthropometric measurements, specifically height.

Main Methods:

A cross-sectional study was conducted with 143 boys and 132 girls.
Peak expiratory flow rate was measured using the Wright-McKerrow peak flow meter.
Regression analysis was performed to establish a predictive equation for PEFR based on height.

Main Results:

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A regression equation was derived: PEFR = 72.14 x height³ + 96.12.
A high coefficient of correlation (0.93) was found between PEFR and height.
The residual standard deviation was 13.7%, indicating good model fit.

Conclusions:

The study provides reliable reference values for PEFR in Swedish children.
Height is a significant predictor of PEFR in this population.
It is recommended that PEFR reference values for boys and girls be considered together.