Answer
In the 2016 update of the GOLD guidelines, a rubric is used that assesses symptoms, breathlessness, spirometric classification, and risk of exacerbations to classify patients according to the following groups [10] :
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Group A (low risk/less symptoms): Stage I or II, 1 or fewer exacerbation per year no hospitalization, modified Medical Research Council (mMRC) 0-1 or COPD Assessment Test (CAT) less than 10
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Group B (low risk/more symptoms): Stage I or II, 1 or fewer exacerbation per year no hospitalization, mMRC 2 or higher or CAT 10 or higher
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Group C (high risk/less symptoms): Stage III or IV, 2 or more per year 1 or more exacerbation with hospitalization, mMRC 0-1 or CAT less than 10
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Group D (high risk/more symptoms): Stage III or IV, 2 or more per year 1 or more exacerbation with hospitalization, mMRC 2 or higher or CAT 10 or higher
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