Figure 4From: New GOLD classification: longitudinal data on group assignmentLongitudinal changes in the CHAIN cohort. (A). Proportion of patients assigned to groups A-D (GOLD 2013 using mMRC dyspnea and CAT in a combined form) at baseline and the one-year follow-up. (B). Proportion of patients assigned to groups I-IV (GOLD 2007) at baseline and the one-year follow-up.Back to article page