Pulmonary function between 40 and 80 years of age

Area of Science:

• Pulmonology
• Medical Statistics

Background:

• Spirometry is a key lung function test, relying on reference equations for accurate interpretation.
• Existing prediction formulas, like those from the ECSC, may not accurately reflect lung function in diverse local populations.
• Accurate lung function standards are vital for assessing respiratory health, disease impact, and environmental influences.

Purpose of the Study:

• To establish localized lung function prediction equations for forced vital capacity (FVC) and forced expired volume in the first second (FEV1).
• To determine appropriate normal reference values for adults in the Lublin Region, Poland.
• To compare the reliability of new equations against existing standards for the local population.

Main Methods:

• Analysis of lung function screening data from 136 adults (aged 40-80) in the Lublin Region.
• Calculation of FVC and FEV1 reference values using linear multiple regression with age and height as predictors.
• Comparison of derived equations with established ECSC reference values.

Main Results:

• New prediction equations for FVC and FEV1 were developed for males and females in the Lublin Region.
• Calculated FEV1 and FVC values for the local population were generally higher than those predicted by ECSC equations.
• Significant differences highlight potential inaccuracies when applying non-local standards.

Conclusions:

• Existing spirometric reference values, particularly ECSC-based ones, may underestimate lung function in the Lublin Region adult population.
• Localized prediction equations are necessary for accurate spirometry interpretation in this demographic.
• Continuous refinement of spirometric standards is needed to ensure clinical relevance and accuracy across different populations.