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Table 2 Distribution of patients based on high exacerbations and blood eosinophil counts (2014 cohort)

From: Evaluation of exacerbations and blood eosinophils in UK and US COPD populations

Population CPRD database N = 15,364 Optum database N = 139,465
Patients with ≥ 2 exacerbations in index year, n 4,708 53,085
 Patients with eosinophil count in baseline period, n 3,089 (65.6%) 13,414
  < 150 cells/μL 1,093 (35.4%) 4,926 (36.7%)
  150–299 cells/μL 1,024 (33.1%) 4,834 (36.0%)
  300–399 cells/μL 448 (14.5%) 1,869 (13.9%)
  ≥ 400 cells/μL 524 (17.0%) 1,785 (13.3%)
Total patients with eosinophil count in baseline period, n 9,345 34,391
 ≥ 2 exacerbations and eosinophil count ≥300 cells/μL, n (%) 972 (10.4%) 3,654 (10.6%)
 ≥ 2 exacerbations and eosinophil count ≥400 cells/μL, n (%) 524 (5.6%) 1,785 (5.2%)
  1. CDM Clinformatics™ Data Mart, CPRD Clinical Practice Research Datalink