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Table 3 ROC curve analyses of blood parameters for predicting airway inflammatory phenotype

From: Blood cell for the differentiation of airway inflammatory phenotypes in COPD exacerbations

 

AUC

P-value

95% Confidence interval

Cutoff point

Sensitivity %

Specificity %

Lower boundary

Upper boundary

Predicting eosinophilic AECOPD (the percentage of sputum eosinophils ≥2.5%)

 Eosinophils (×109/L)

0.626

0.025

0.407

0.844

0.35

71.4

49.6

 Eosinophils %

0.672

0.012

0.494

0.849

0.55

85.7

52.8

 Blood ELR

0.601

0.036

0.389

0.813

0.03

71.4

50.3

 Blood ENR

0.603

0.035

0.392

0.814

0.01

71.4

54.1

 Blood EMR

0.604

0.034

0.387

0.822

0.07

71.4

50.4

 Blood NLR

0.375

0.255

0.201

0.549

   

 Blood NMR

0.503

0.978

0.283

0.723

   

 Blood MLR

0.374

0.252

0.256

0.492