Table 5.

Treatment response before and after biologic therapy.

Variables	Before the biologic n=97 (%)	After the biologic n=97 (%)
Exacerbations/year
Total	82 (84.5)	14 (14.4)
Average*	2.9	1.6
Oral corticosteroid
Total	75 (77.3)	10 (10.3)
Average°	7.12	6.8
Blood eosinophil count (cells/μL)	750.5±498.5	188.0±122.4
FEV %	59.0±12.9	76.0±10.2

*Before therapy, the overall exacerbations per year were 238 occurred in 82 patients with average 2.9 while after therapy, the overall exacerbations per year were 22 occurred in 14 patients with average 1.6; °before therapy, the overall doses of OCS were 534 mg given to 75 patients with average 7.12 mg while after therapy, the overall doses of OCS were 68 mg given to 10 patients with average 6.8 mg.