Table 1 Characteristics of studies and patients enrolled from studies retrieved for meta-analysis
From: Lung ultrasound for the diagnosis of pneumonia in adults: a systematic review and meta-analysis
Study | Year | Origin | Design | Sample size | Mean age (years) | M/F | True positive | False positive | False negative | True negative |
|---|---|---|---|---|---|---|---|---|---|---|
Benci et al.[31] | 1996 | Italy | Prospective | 57 | 38.5 | 50/30 | 37 | 0 | 0 | 20 |
Lichtenstein et al.[32] | 2004 | France | Prospective | 32** | 58 | Not mentioned | 111 | 0 | 8 | 265 |
Lichtenstein et al.[33] | 2004 | France | Prospective | 117 | 53 | 37/23 | 59 | 1 | 6 | 51 |
Lichtenstein et al.[34] | 2008 | France | Prospective | 260 | 68 | 140/120 | 74 | 10 | 9 | 167 |
Parlamento et al.[35] | 2009 | Italy | Prospective | 49 | 60.9 | 31/18 | 31 | 0 | 1 | 17 |
Cortellaro et al.[21] | 2010 | Italy | Prospective | 120 | 69 | 77/43 | 80 | 2 | 1 | 37 |
Xirouchaki et al.[38] | 2011 | Greece | Prospective | 42* | 57.1 | 34/8 | 66 | 4 | 0 | 14 |
Reissig et al.[22] | 2012 | Europe | Prospective | 356 | 63.8 | 228/134 | 211 | 3 | 15 | 127 |
Testa et al.[36] | 2012 | Italy | Prospective | 67 | 55 | Not mentioned | 32 | 5 | 2 | 28 |
Unluer et al[37] | 2013 | China | Prospective | 72 | 66.3 | 35/37 | 27 | 7 | 1 | 37 |