Table 1. Characteristics of the selected studies.
| Author | Year | Design | Country | Center | Time | Needle | ROSE | No. | Location | Masses (B/M) | Size(mm) Mean or median | Passes (mean or median) | QUADAS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ramesh J | 2015 | P | USA | 1 | 5 | Flexible 19G | Yes | 50 | 30/20 | 7/43 | 40.2 | 1.2 | 12 |
| Berzosa M | 2015 | R | USA | 2 | 13 | 22G ProCore | No | 61 | 38/23 | 21/40 | 33 | 1.7 | 10 |
| Fabbri C | 2015 | P | Italy | 2 | 24 | 22G ProCore | No | 68 | 32/36 | 20/48 | 16.5 | 1.5 | 11 |
| Lee Y | 2014 | P | Korea | 1 | 16 | 22G or 25G ProCore | Yes | 58 | 24/34 | 3/55 | 36.5 | 1.3 | 13 |
| Vanbiervliet G | 2014 | P | France | 17 | 9 | 22G ProCore | No | 80 | 50/30 | 10/70 | 33.9 | NA | 13 |
| Iwashita T | 2013 | R | USA | 1 | 7 | 25G ProCore | Yes | 50 | 38/12 | 4/46 | 30.5 | 4 | 13 |
| Hucl T | 2013 | P | India | 1 | 16 | 22G ProCore | No | 69 | 37/32 | 14/55 | 41.9 | NA | 12 |
| Larghi A | 2013 | P | Multiple | 5 | 2 | 22G ProCore | No | 61 | 35/26 | 5/56 | 32.4 | NA | 12 |
| Krishnan K | 2013 | R | USA | 1 | 22 | 19G or 22G ProCore | Yes | 23 | NA | 2/21 | NA | NA | 9 |
| Bang J | 2012 | P | USA | 1 | 3 | 22G PreCore | Yes | 28 | 20/8 | 3/25 | 32.5 | 1.3 | 12 |
| Varadarajulu S | 2012 | P | USA | 1 | 3 | flexible 19-G | Yes | 32 | 32/0 | 7/25 | 34 | 1.4 | 11 |
| Iglesias J | 2011 | P | Spain | 5 | 4 | 19G PreCore | No | 47 | NA | 45/2 | NA | NA | 10 |
| Sakamoto H | 2009 | P | Japan | 1 | 3 | 19G Trucut | Yes | 24 | 12/12 | 6/18 | 32.8 | NA | 11 |
| Thomas T | 2009 | P | UK | 1 | 69 | 19G Trucut | No | 113 | NA | 12/101 | 30 | 3 | 12 |
| Yun SS | 2007 | R | USA | 1 | 24 | 19G Trucut | No | 52 | 30/22 | 12/40 | NA | NA | 9 |
| Ginès A | 2005 | P | USA | 1 | 6 | 19G Trucut | Yes | 12 | N/A | 1/11 | 32.5 | NA | 11 |
P, prospective; R, retrospective; ROSE, rapid on-site cytopathology evaluation for all cases; No., Number; H/U, head or uncinate process of pancreas; B/M, benign/malignant; QUDAS, Quality Assessment of Diagnostic Accuracy Studies; NA, not available.