Exacerbation characteristics distributed per GOLD stages: large COPD studies, compared to UNLOCK primary care datasets.

Data are proportions and mean values (SD). “-“ indicates data not available. * indicates data from placebo group. GOLD guideline data was reported in the GOLD guidelines of 2013 [8] and was based on the placebo-limbed data of the TORCH, UPLIFT and ECLIPSE studies. Abbreviations: GOLD: Global initiative for chronic Obstructive Lung Disease.