Biomarker reference
Hemoglobin A1c
Biomarker Reference Sheet — research tool, not FDA-cleared. Ranges under citation review.
Metadata
Reference Ranges
| Range type | Value |
|---|---|
| Male reference | 4–5.6 % |
| Female reference | 4–5.6 % |
| Optimal | 4.8–5.6 % |
Sex-specific reference ranges from the registry. Generic reference_range column is not used.
Provenance
Source documentation pending — reference ranges are under citation review.
Interpretation
Used in Patterns
This biomarker contributes to the Insulin Resistance Detection model card.
Validation Snapshot
NHANES distribution available in the independent audit harness — see the zenlo-audit repository for cycle 2015–2016 results on this biomarker.
Source: Independent audit harness, NHANES 2015–2016 (commit c10afe8)
HIPAA-aligned design · ZDR active · Anthropic BAA · Pending legal review. Zenlo Labs is a clinical decision support tool intended exclusively for use by licensed healthcare providers — not a substitute for professional medical judgment, and not intended for direct patient use.