FIGURE 4.

Annual rate of moderate or severe exacerbations, by baseline blood eosinophil count and individual treatment group by prior exacerbation subgroup: a) single moderate, b) frequent moderate and c) severe. The exacerbation history subgroups are defined as single moderate (1 moderate/no severe exacerbation in the prior year), frequent moderate (≥2 moderate/no severe exacerbations in the prior year) and severe (≥1 severe/any moderate exacerbation in the prior year). FF: fluticasone furoate; UMEC: umeclidinium; VI: vilanterol.