“…Frequent exacerbators cohort had 2.5 exacerbations per personyears, 39 and the likelihood of having another exacerbation increased with a history of two or more exacerbations in the previous year and/or increasing severity of disease. 4,40 Exacerbations are treated with oral corticosteroids, which have shown to decrease the burden of exacerbations by shortening recovery time, improvement of lung function, and arterial hypoxemia. They also reduce the risk of relapse, treatment failure, and the length of hospital stay, all reducing the overall cost.…”