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GOLD COPD Classification
Exacerbation history (past 12 months)
0 or 1 moderate exacerbation (no hospital admission)
≥ 2 moderate exacerbations OR ≥ 1 severe (leading to hospital)
Symptom assessment (mMRC / CAT)
Less symptoms: mMRC 0–1 or CAT < 10
More symptoms: mMRC ≥ 2 or CAT ≥ 10