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Table 4 The areas under the ROC curves of univariable and multivariable models

From: Prediction of gold stage in patients hospitalized with COPD exacerbations using blood neutrophils and demographic parameters as risk factors

Model The areas under the ROC (95% CI) P value
Model 1 0.52 (0.41 to 0.62) 0.760
Model 2 0.57 (0.47 to 0.67) 0.202
Model 3 0.65 (0.56 to 0.75)  < 0.001
Model 4 0.63 (0.53 to 0.73) 0.013
Model 5 0.68 (0.59 to 0.78)  < 0.001
Model 6 0.77 (0.68 to 0.85)  < 0.001
Model 7 0.84 (0.77 to 0.89)  < 0.001