eGFR 60: The G2 Boundary and What It Does Not Diagnose

An eGFR of exactly 60 mL/min/1.73 m² belongs to GFR category G2, at its lower boundary. G3a starts below 60 and extends down to 45. A laboratory estimate near a boundary is often rounded, so a small category change does not necessarily represent a large biological change.

An eGFR of 60 is not “60% of your kidney function.” It is a filtration estimate standardized to a reference body surface area. A person's baseline, muscle mass, estimating equation and clinical condition all influence interpretation.

Does 60 mean stage 2 CKD?

Not by itself. KDIGO 2024 requires abnormalities of kidney structure or function for at least three months. The distinction at this boundary is:

Kidney damage markers can include albuminuria, certain urine abnormalities, structural changes, or other clinical evidence. Blood and urine testing answer different questions. The CKD category tool explains G1–G5 ranges but does not establish a diagnosis.

Be careful with a report that says “≥60”

Some laboratories display a threshold instead of an exact number. “≥60” could represent 60 or a higher result; it cannot be used as an exact previous value to calculate a decline. Ask whether the laboratory can clarify its reporting convention and which equation it uses.

Do not assume that a self-calculated decimal is more clinically precise than the laboratory report. The calculation guide explains unit checks and the limits of the estimate.

What age changes, and what it does not

Average eGFR is lower in older populations, but age does not move the formal GFR category boundaries. An isolated result near 60 with normal urine findings may have a different outlook in an older adult than in a young adult; this does not make persistent values below 60 automatically normal.

Use age averages versus CKD criteria as context, together with the person's trend and medical history.

When the result needs closer assessment

A downward trend, albumin or blood in urine, recent acute illness, significant symptoms, diabetes, hypertension, or an uncertain cause may change follow-up. Dehydration and NSAIDs can cause real injury; they should not be grouped with harmless measurement variation. Other influences such as diet, muscle mass or a secretion-changing medicine may alter creatinine without the same change in filtration.

A sudden decline can matter even when the current category remains G2. Read the sudden-drop guide for warning signs and questions about prompt assessment.

A useful next-step list

1. Keep the dated laboratory report and previous results.
2. Check the creatinine unit and equation if you are reproducing the estimate.
3. Ask whether UACR and other urine tests are needed.
4. Agree a repeat-testing interval based on the trend and clinical context.
5. Review medicines and established risk factors with the care team; do not change prescriptions or fluid intake simply to raise the number.

The key interpretation is G2 at exactly 60, with diagnosis and prognosis determined by the remaining evidence.