Systematic review and meta-analysis for the use of ultrasound versus radiology in diagnosing of pneumonia

The Ultrasound Journal

Table 1 Characteristics of studies and patients enrolled from studies retrieved for meta-analysis

Study	Year	Origin	Design	Sample size	Mean age (years)	M/F	True positive	False positive	False negative	True negative
Benci et al. [27]	1996	Italy	Prospective	75	38.5	50/30	37	0	0	20
Lichtenstein et al. [19]	2004	France	Prospective	32	58	Not mentioned	111	0	8	265
Lichtenstein et al. [28]	2004	France	Prospective	117	53	37/23	59	1	6	51
Lichtenstein et al. [29]	2008	France	Prospective	260	68	140/120	74	10	9	167
Parlamento et al. [30]	2009	Italy	Prospective	49	60.9	31/81	31	0	1	17
Cortellaro et al. [31]	2010	Italy	Prospective	120	69	77/43	80	2	1	37
Xirouchaki et al. [32]	2011	Greece	Prospective	42	57.1	34/8	66	4	0	14
Reissig et al. [33]	2012	Europe	Prospective	356	63.8	228/134	211	3	15	127
Testa et al. [34]	2012	Italy	Prospective	67	55	Not mentioned	32	5	2	28
Unluer et al. [24]	2013	China	Prospective	72	66.3	35/37	27	7	1	37
Luri [23]	2009	Italy	Prospective	32	4.5	60	20	2	8	2
Shah [35]	2012	US	Prospective	200	3	112/88	31	18	146	5
Hadeel and Dien [25]	2013	Egypt	Prospective	75	Neonates	Not mentioned	64	4	7	0
Copetti [36]	2008	Italy	Prospective	144	77.6	72/72	60	0	0	19
Caiulo VA [26]	2013	Italy	Prospective	88	5.1	56/47	88	0	1	13
Nafae [37]	2013	Egypt	Prospective	100	50.6	56/44	61	1	1	17
Liu [38]	2014	China	Prospective	179	72	124/99	80	0	5	27
Esposito [39]	2014	Italy	Prospective	103	5.6	56/47	52	3	1	47
Nazerian [40]	2015	Italy	Prospective	285	71.14	133/152	72	9	15	189
Bourcier [41]	2014	France	Prospective	144	77.6	72/72	117	9	6	12