Value of variation index of inferior vena cava diameter in predicting fluid responsiveness in patients with circulatory shock receiving mechanical ventilation: a systematic review and meta-analysis

Table 2 Outcomes of studies included in this meta-analysis

First author/year of publication	Sample size	Cutoff (%)	Subject numbers could be calculated				Sensitivity (%)	Specificity (%)	AUROC (95% CI)
First author/year of publication	Sample size	Cutoff (%)	TP	FP	FN	TN	Sensitivity (%)	Specificity (%)	AUROC (95% CI)
Barbier 2004 [9]	20	18	9	1	1	9	90	90	0.91 (0.84–0.98)
Feissel 2004 [10]	39	12	14	1	2	22	88	96	NA
Charbonneau 2014 [16]	44	21	10	7	16	11	38	61	0.43 (0.25–0.61)
Theerawit 2016 [17]	29	10	12	3	4	10	75	77	0.67 (0.48–0.89)
Lu 2017 [18]	49	20.5	18	5	9	17	67	77	0.81 (0.67–0.94)
Vignon 2017 [19]	422	8	126	58	103	135	55	70	0.635

Abbreviations: AUROC Area under the ROC curve, FN False-negative, FP False-positive, NA Not available, TN True-negative, TP True-positive

ISSN: 1364-8535