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Infant Reference Intervals-Steps Towards Improving the Supportive Data for Result Interpretation.

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|April 19, 2025
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Summary
This summary is machine-generated.

Reference intervals for infants are crucial for interpreting blood tests. Current methods have limitations, but new data from healthy infants offer improved opportunities for accurate pediatric reference ranges.

Keywords:
infancyinfantneonatalpaediatricsreference intervals

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Area of Science:

  • Pediatric Laboratory Medicine
  • Clinical Chemistry
  • Biomarker Analysis

Background:

  • Accurate interpretation of blood test results requires comparative data, with reference intervals being a key concept.
  • Infant biomarker levels change rapidly due to development and growth, necessitating age-specific reference data.
  • Conventional methods for establishing reference intervals have limitations, including extensive blood sampling requirements.

Purpose of the Study:

  • To summarize the current state of reference intervals, with a specific focus on infant populations.
  • To highlight the limitations of existing reference interval methodologies in pediatrics.
  • To explore emerging approaches and recent data for establishing infant reference intervals.

Main Methods:

  • A literature review of reference percentiles for infants (birth to 12 months) published from 1950 to 2024.
  • Searched for terms including pediatric, infant, and neonatal reference intervals.
  • Investigated current clinical reference interval data by examining three routine biomarkers on seven Nordic laboratory websites.

Main Results:

  • Infant biomarker levels exhibit rapid changes during development and growth.
  • New methods using trimmed laboratory data are emerging, but require verification to avoid modeling pathological data.
  • Recently published Nordic reference interval data, based on healthy infants at specified time points, show promise.

Conclusions:

  • Infant reference interval methodology demands careful consideration due to developmental changes.
  • Heterogeneity in current infant reference interval practices necessitates further methodological research.
  • Harmonization activities and software development are crucial for improving infant reference interval concepts.