🌬️ GOLD Airflow-Limitation Grade (FEV1)
Grades airflow-limitation severity in COPD (GOLD 1–4) by post-bronchodilator FEV1 percent predicted, after airflow limitation is confirmed.
The spirometric grade (1–4) and the symptom/exacerbation group (A/B/E) are separate axes — pharmacotherapy is driven mainly by the ABE group, not by the FEV1 grade alone. (original synthesis · not guideline verbatim)
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When to use
First confirm post-bronchodilator FEV1/FVC < 0.70, then enter FEV1 % predicted; the tool returns the GOLD grade. Combine the grade with the symptom/exacerbation ABE assessment to guide therapy.
How it works
Prerequisite: post-bronchodilator FEV1/FVC < 0.70. GOLD 1 ≥ 80% · GOLD 2 50–79% · GOLD 3 30–49% · GOLD 4 < 30% predicted.
Key points
- The spirometric grade (1–4) and the symptom/exacerbation group (A/B/E) are separate axes — pharmacotherapy is driven mainly by the ABE group, not by the FEV1 grade alone. (original synthesis · not guideline verbatim)
- The grade is valid only after a fixed post-bronchodilator FEV1/FVC < 0.70 confirms persistent airflow limitation; pre-bronchodilator values overdiagnose.
- FEV1 correlates only modestly with symptoms and exacerbation risk, so it should not be the sole basis for treatment intensity.
References
- Global Initiative for Chronic Obstructive Lung Disease (GOLD). 2024 Report.
- Agustí A, et al. GOLD 2023: Executive Summary. Eur Respir J. 2023;61(4):2300239.
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Post-bronchodilator FEV1 % predicted | 60 % |
|---|
→Airflow-limitation gradeGOLD 2 (moderate)
- FEV1 %pred：60%
Frequently asked questions
- What is GOLD Airflow-Limitation Grade (FEV1)?
- Grades airflow-limitation severity in COPD (GOLD 1–4) by post-bronchodilator FEV1 percent predicted, after airflow limitation is confirmed.
- How is GOLD Airflow-Limitation Grade (FEV1) calculated? What is the core formula?
- Prerequisite: post-bronchodilator FEV1/FVC < 0.70. GOLD 1 ≥ 80% · GOLD 2 50–79% · GOLD 3 30–49% · GOLD 4 < 30% predicted.
- When is GOLD Airflow-Limitation Grade (FEV1) used?
- First confirm post-bronchodilator FEV1/FVC < 0.70, then enter FEV1 % predicted; the tool returns the GOLD grade. Combine the grade with the symptom/exacerbation ABE assessment to guide therapy.
- What are the key clinical points for GOLD Airflow-Limitation Grade (FEV1)?
- The spirometric grade (1–4) and the symptom/exacerbation group (A/B/E) are separate axes — pharmacotherapy is driven mainly by the ABE group, not by the FEV1 grade alone. (original synthesis · not guideline verbatim) The grade is valid only after a fixed post-bronchodilator FEV1/FVC < 0.70 confirms persistent airflow limitation; pre-bronchodilator values overdiagnose. FEV1 correlates only modestly with symptoms and exacerbation risk, so it should not be the sole basis for treatment intensity.
- What are the limits and cautions when using GOLD Airflow-Limitation Grade (FEV1)?
- For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
- How is GOLD Airflow-Limitation Grade (FEV1) calculated in practice? Can you show a worked example?
- Inputs: Post-bronchodilator FEV1 % predicted 60 % → Result: Airflow-limitation grade GOLD 2 (moderate)（FEV1 %pred: 60%）