CRP and allergic bronchopulmonary aspergillosis: Our findings enable us to conclude that CRP levels are not associated with the pulmonary exacerbation severity index but that they are associated with some clinical variables, such as colonization by P. aeruginosa, number of exacerbations treated with intravenous antibiotics during the previous year, treatment with oral corticosteroids, and allergic bronchopulmonary aspergillosis.