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. 2015 Jan 7;5(1):e005655. doi: 10.1136/bmjopen-2014-005655

Figure 2.

Figure 2

Patient classification based on symptoms and risk of exacerbations from GOLD guidelines.9 10 Symptoms of chronic obstructive pulmonary disease (COPD) are assessed using mMRC or COPD Assessment Tool (CAT) score. Patient's risk of exacerbations is assessed based on the patient's stage of airflow limitation and/or number of exacerbations that the patient has had over previous 12 months.