Where HbA1c is reported
| Condition | Direction | Compared against | Associated symptoms | Source |
|---|---|---|---|---|
| Type 1 Diabetes | ↑ elevated | T1D children vs normal reference range | — | Pasi et al. 2022 |
| Type 2 Diabetes | ↑ elevated | T2DM vs healthy controls | — | Arif et al. 2024 |
Frequently asked questions
In which conditions is HbA1c altered?
In the OSMF atlas HbA1c is reported in Type 1 Diabetes, Type 2 Diabetes. It is elevated in 2 across 2 entries.
Does HbA1c point to one specific diagnosis?
No. Because HbA1c changes in several conditions (Type 1 Diabetes, Type 2 Diabetes), an abnormal result cannot identify which condition, if any, is present. It must be interpreted with symptoms, history and other tests.
Is there a standard clinical test for HbA1c?
The atlas entries for HbA1c do not carry a LOINC code, which usually means the marker was measured with research assays or study-specific methods rather than a routine clinical panel.
Is one abnormal HbA1c result diagnostic?
No single biomarker result is diagnostic of any of these conditions. Findings reflect group averages from published cohorts with substantial overlap between patients and controls.
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Last reviewed: 2026-07-03 · Browse: Biomarker Index · All marker pages · Biomarker Atlas
Disclaimer: Educational synthesis of peer-reviewed research; not medical advice. Findings are group-level and vary with study design. Discuss any result with a qualified clinician.