CKiD U25 Creatinine eGFR: Clinical Guide

Clinical guide to CKiD U25 Creatinine eGFR including calculation, interpretation, assumptions, limitations and references.

Estimates GFR in children and young adults using the CKiD U25 equation.

Overview

Estimates GFR in children and young adults using the CKiD U25 equation.

Clinical Significance

Interpret with paediatric nephrology context and assay method.

When to Use

  • Use as decision support when all required inputs are reliable.

How It Is Calculated

  • CKiD U25 age- and sex-specific equation.

Interpretation

  • Interpret with paediatric nephrology context and assay method.

Worked Example

Enter verified values in the displayed units; MedicalC applies the published equation or point system.

Limitations

  • Prediction models may be miscalibrated outside their derivation population.
  • Measurement and classification error can materially change the result.

Clinical Pearls

  • Document source values and units with the result.
  • Use trends and the full clinical picture.

Common Mistakes

  • Wrong units.
  • Using non-contemporaneous inputs.
  • Treating the output as a diagnosis or mandatory treatment decision.

Frequently Asked Questions

What does this tool calculate?

Estimates GFR in children and young adults using the CKiD U25 equation.

Can the result be used alone?

No. Interpret it with the complete clinical assessment and current guidance.

References

  1. Pierce CB et al. Kidney Int. 2021;99:948-956. — Primary or supporting reference for the implemented model.

Reviewed by: MedicalC Clinical Editorial Team
Last reviewed: July 2026

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