Korean Journal of Clinical Geriatrics

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Table. 5.

Table. 5.

ROC curve analysis for the prediction of oxygen therapy (N=540)

Variable AUC (95% CI) Cut-off Sensitivity (95% CI) Specificity (95% CI) P-value*
Age, yr (mean±SD) 0.788 (0.744-0.831) 68.5 75.0% 71.9% <0.001
Presepsin (pg/mL) 0.770 (0.721-0.819) 254.5 72.2% 72.8% <0.001
CRP (mg/L) 0.753 (0.705-0.800) 10.7 70.4% 69.2% <0.001
Ferritin (ng/mL) 0.723 (0.670-0.776) 182.2 65.7% 66.4% <0.001
Troponin I (ng/mL) 0.707 (0.653-0.760) 0.004 68.5% 65.0% <0.001
Procalcitonin (ng/mL) 0.637 (0.575-0.699) 0.025 57.4% 60.3% <0.001
1/E gene (Ct) 0.591 (0.530-0.652) 0.055 51.9% 63.1% 0.004

ROC, receiver operating characteristic; N, patient numbers; AUC, area under the curve; CI, confidence interval; CRP, C-reactive protein; Ct, cycle threshold.

*P-value by ROC curve analysis.

Korean J Clin Geri 2021;22:75-85 https://doi.org/10.15656/kjcg.2021.22.2.75
© 2021 Korean J Clin Geri