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Spirometry: A Need for Periodic Updates of National Reference Values.
Andrzej Chciałowski1, Tomasz Gólczewski2
1Department of Infectious Diseases and Allergology, Military Institute of Medicine, Warsaw, Poland.
Advances in Experimental Medicine and Biology
|September 22, 2019
Summary
Spirometry reference values in Poland have changed significantly over time due to socioeconomic shifts. Periodic updates to prediction equations are crucial for accurate lung function assessments, especially in developing nations.
Area of Science:
- Pulmonary Medicine
- Public Health
- Biostatistics
Background:
- Spirometry is essential for diagnosing and monitoring respiratory diseases.
- Reference values for lung function tests can change over time due to various factors.
- Poland underwent significant socioeconomic changes in the 1990s, potentially impacting population health metrics.
Purpose of the Study:
- To evaluate the need for updated spirometry reference values in the Polish population.
- To assess changes in lung function parameters (FEV1, VC, FVC) over time.
- To compare historical spirometry data with current reference values.
Main Methods:
- Retrospective analysis of spirometry data (FEV1, VC, FVC) from healthy, non-smoking Caucasians (731 females, 327 males) collected between 1993-1998.
- Comparison of measured values with European Community for Steel and Coal (ECSC) and current Polish reference values.
- Assessment of discrepancies based on age.
Main Results:
- Historical spirometry values approximated ECSC references but were lower than current Polish references.
- The difference between historical and current values was more pronounced in younger individuals.
- Current Polish FVC reference values showed greater similarity to historical VC measurements than to historical FVC measurements.
Conclusions:
- Spirometry reference values are dynamic and can change over time.
- Prediction equations for lung function require periodic re-evaluation and updating.
- Nations experiencing rapid socioeconomic development necessitate particular attention to updating spirometry prediction equations.
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