Table 3 Rate ratio of annual exacerbations according to ICS use by baseline eosinophil count (cells/μL)
|  |  | ≤ 150 cells/μL | > 150–≤ 300 cells/μL | > 300 cells/μL |
|---|---|---|---|---|
Baseline ICS use | No n = 8830 | Rate: 0.45 | Rate: 0.48 RR: 1.07 (95% CI 0.97, 1.17) | Rate: 0.49 RR: 1.09 (95% CI 0.98, 1.21) |
Yes n = 13,295 | Rate: 0.75 | Rate: 0.79 RR: 1.05 (95% CI 0.99, 1.11) | Rate: 0.82 RR: 1.09 (95% CI 1.02, 1.17) |