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Table 2 Results of optimism corrected model performance using bootstrapping (n = 1000)

From: Charlson comorbidity index has no incremental value for mortality risk prediction in nursing home residents with COVID-19 disease

 

Base model

(age + sex + age*sex)

CCI model

Base model + CCI

AUROC, (95% CI)

0.61

(CI: 0.60 to 0.63)

0.61

(CI: 0.59 to 0.63)

Scaled Brier score, (95% CI)

0.03

(0.02 to 0.04)

0.03

(0.02 to 0.04)

Calibration slope, (95% CI)

0.97

(0.83 to 1.13)

0.95

(0.82 to 1.12)

  1. CCI Charlson comorbidity index, AUROC area under receiver operator curve, CI confidence interval
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BMC Geriatrics

ISSN: 1471-2318

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