Prognostic Value of N-terminal Probrain Natriuretic Peptide for Patients with Acute Respiratory Distress Syndrome: A Systematic Review and Meta-Analysis

Table 1

Characteristics of included studies.

Author	Year	Country	Tested days	Cut-off	Survival/nonsurvival	AUC	Sensitivity (%)	Specificity (%)	Endpoint	Test method	TP	FP	FN	TN
Lin [32]	2012	China	d1	2417 pg/mL	60/27	0.722	61.5	65.6	30 d mortality	Roche, Cobas e411 analyzer	17	21	10	39
Park [26]	2011	Korea	d2	Percent change 30%	18/31	0.82	82	81	28 d mortality	Roche, Elecsys 2010 analyzer	25	3	6	15
Bajwa [25]	2008	America	d2	6813 ng/L	107/70	0.66	80	51	60 d mortality	Roche, Elecsys 2010 analyzer	56	52	14	55
Ji [29]	2016	China	d1	4522 ng/L	30/50	0.852	81	77	28 d mortality	Roche, Elecsys 2010 analyzer	24	11	6	39
Zhou [30]	2015	China	d1	333.92 pg/mL	59/28	0.798	81.92	91.89	28 d mortality	NA	23	5	5	54
Su [27]	2018	China	d1	NA	27/24	0.832	79.2	74.1	28 d mortality	Roche, Elecsys 2010 analyzer	19	7	5	20
Xu [31]	2013	China	d1	335 pg/mL	10/40	0.960	80.0	92.5	28 d mortality	Roche, Elecsys 2010 analyzer	8	3	2	37

NA: not available; AUC: area under the curve; TP: true positive; FP: false positive; TN: true negative; FN: false negative.