Clinical laboratory reference intervals in pediatrics: the CALIPER initiative

Area of Science:

• Clinical Chemistry
• Pediatric Laboratory Medicine
• Reference Interval Harmonization

Background:

• Reference intervals are vital for interpreting laboratory test results and guiding clinical decisions.
• Existing pediatric reference intervals are outdated, often based on old technology, and may lead to misdiagnoses.
• There is a critical need for updated and accurate pediatric reference intervals.

Purpose of the Study:

• To review the challenges in generating and validating reference intervals according to Clinical Laboratory Standards Institute (CLSI) guidelines.
• To highlight deficiencies in current pediatric reference intervals and the unique difficulties in establishing them for children.
• To introduce the CALIPER project as a solution for creating a global pediatric reference interval database.

Main Methods:

• Review of current guidelines for reference interval determination (CLSI).
• Analysis of existing literature and data on pediatric reference intervals.
• Discussion of challenges specific to pediatric populations.

Main Results:

• Significant gaps and outdated data exist for pediatric reference intervals.
• Establishing pediatric reference intervals presents unique methodological and logistical challenges.
• The CALIPER project is underway to create a comprehensive pediatric reference interval database.

Conclusions:

• Urgent need for updated pediatric reference intervals to ensure accurate diagnosis and patient care.
• Adherence to CLSI guidelines is essential for robust reference interval validation.
• The CALIPER project aims to provide a global resource for pediatric reference intervals.