Reply to: Height seems to be the only variable that determines lung oscillometry indices

Area of Science:

• Biometrics
• Anthropometry
• Standardization

Background:

• Reference equations are essential for interpreting anthropometric measurements.
• Existing equations may not adequately account for key demographic and physical variables.
• The International Organization for Standardization (IOS) provides frameworks for measurement standards.

Purpose of the Study:

• To determine the essential variables for robust IOS reference equations.
• To highlight the importance of age, sex, BMI, and height in anthropometric assessments.

Main Methods:

• Literature review and analysis of existing anthropometric reference data.
• Evaluation of statistical models for equation development.
• Cross-validation of proposed equation parameters.

Main Results:

• Age, sex, body mass index (BMI), and height significantly influence anthropometric reference values.
• Inclusion of these variables enhances the precision and applicability of IOS reference equations.
• Exclusion of these factors can lead to misinterpretation of measurements.

Conclusions:

• IOS reference equations must incorporate age, sex, BMI, and height for improved accuracy.
• Standardized anthropometric assessments rely on comprehensive reference data.
• These findings support the development of more inclusive and precise biometric standards.