The utility of B-type natriuretic peptide in the diagnosis of heart failure in the emergency department: a systematic review

Table 1 Characteristics of the studies included in the review

Study Year	# subjects	Age (mean +/- SD)	% male	History of HF (%)	History of asthma or COPD (%)	Patients admitted (%)	BNP assay used	Final diag-nosis HF (%)	Cutoff (pg/ml)	Sensi-tivity (%)	Speci-ficity (%)
Jourdain 2002	125	72†	*	*	*	100	Triage	72	300	94	86
Logeart 2002	163	67 ± 15	67	49	*	90	Triage	71	100	96	31
Maisel 2002	1,586	64 ± 17	56	33	41	72	Triage	47	100	90	76
Morrison 2002	321	*	95	42	40	43	Triage	42	105	86	94
Villacorta 2002	70	72 ± 16	47	37	44	*	Triage	51	200	100	97
Lainchbury 2003	205	70 ± 14	49	25	42	*	Triage	34	100	77	84
Knudsen 2004	155	76†	45	*	47	*	Triage	48	100	90	55
Ray 2004	308	80 ± 8	50	20	25	100	Triage	46	100	90	59
Mueller 2005	251	73†	93	65	*	*	AxSYM BNP	55	100	96	61
Alibay 2005	160	80 ± 14	48	38	34	58	Triage	38	150	94	61

Sensitivity and Specificity are presented for the BNP value closest to 100 pg/ml from each study.
* Not reported † Standard deviation not reported

ISSN: 1471-227X