Impact of Negative Fluid Balance on Mortality and Outcome of Patients with Confirmed COVID-19

Figure 2

The area under the ROC curve for NT-proBNP levels as a predictor of positive fluid balance was 63.2 (95% CI: 55.6, 70.4). A NT-proBNP level of >781 pg/mL was associated with positive fluid balance, with a sensitivity of 55.8% (95% CI: 41.3, 69.5), a specificity of 70.2% (95% CI: 64.1, 75.9), a positive likelihood ratio (LR) of 1.87 (95% CI: 1.37, 2.56), and a negative LR of 0.63 (95% CI: 0.45, 0.86).