Table 5.

Predictive values of distensibility index of inferior vena cava for responders and nonresponders

	Responders, n (%)	Nonresponders, n (%)	Total, n (%)
dIVC cutoff
<25%	13 (43.3)	2 (6.7)	15 (50.0)
≥25%	11 (36.7)	4 (13.3)	15 (50.0)
Total	24 (80.0)	6 (20.0)	30 (100.0)
Predictive values, % (95% CI)
Sensitivity	54.2 (34.2-74.1)
Specificity	66.7 (28.9-104.4)
PPV	86.7 (69.5-103.9)
NPV	26.7 (4.3-49.0)
AUC (95% CI)	0.66 (0.44-0.89)

Percentage from total number of cases. dIVC=Distensibility index of inferior vena cava, CI=Confidence interval, NPV=Negative predictive value, PPV=Positive predictive value, AUC=Area under the curve