Table 2. Outcomes assessed in meta-analysis.
| Study | Groups | Needle size, G | Diagnostic adequacy | Diagnostic accuracy | Optimal histology cores | Mean number (SD) of passes required for diagnosis | NOS quality assessment | Cochrane tool for risk of bias | |||
| Total | Pancreas | Total | Pancreas | Total | Pancreas | ||||||
| Bang, 2012 (USA) 19 | FNAFNB | 2222 | 28/2825 /28 | 28/2825 /28 | 8/1214 /18 | 1.61 (0.88)1.28 (0.54) | High risk of performance bias, low risk for selection, detection, attrition, and reporting bias | ||||
| Hucl, 2013 (India) 20 | FNAFNB | 2222 | 127/145125 /145 | 60/6964 /69 | 112/139110 /139 | 51/6959 /69 | 96/139100 /139 | 2.47 (0.93)1.23 (0.47) | 8 | ||
| Witt, 2013 (USA) 21 | FNAFNB | 2222 | 16/1817 /18 | 17/1817 /18 | 10/138 /11 | 2.942.11 | 6 | ||||
| Kim, 2014 (Korea) 22 | FNAFNB | 2222 | 2/109/12 | 2/109/12 | 2/109/12 | 3.2 (1.3)1.8 (0.9) | High risk of performance bias, low risk for selection, detection, attrition, and reporting bias | ||||
| Vanbiervliet, 2014 (France) 23 | FNAFNB | 2222 | NRNR | 74/8072/80 | 70/8056/80 | NRNR | High risk of performance bias, low risk for selection, detection, attrition, and reporting bias | ||||
| Lee, 2014 (Korea) 24 | FNAFNB | 22 & 2522 & 25 | NRNR | 55/5857/58 | 45/5848/58 | NRNR | High risk of performance bias, low risk for selection, detection, attrition, and reporting bias | ||||
| Strand, 2014 (USA) 25 | FNAFNB | 2222 | 32/3219/27 | 30/329/27 | 7/919/27 | 2.9 (1.55)1.4 (0.67 | 4 | ||||
| Lin, 2014 (USA) 26 | FNAFNB | 2222 | NRNR | 24/2622/26 | NRNR | NRNR | 6 | ||||
| Mavrogenis, 2015 (Belgium) 27 | FNAFNB | 2225 | 22/2824/28 | 15/1916/19 | 24/2824/28 | 17/1917/19 | 24/2822/28 | 17/1915/19 | NRNR | 7 | |
| Berzosa, 2015 (USA) 28 | FNAFNB | 2522 | 50/6145/61 | 46/6142/61 | NRNR | NRNR | 6 | ||||
| Alatawi, 2015 (France) 29 | FNAFNB | 2222 | 45/5050/50 | 42/5045/50 | 3.28 (1.0)2.59 (0.49) | 8 | |||||
| Yang, 2015 (Korea) 30 | FNAFNB | 2225 | NRNR | 37/3834/38 | 23/3826/38 | NRNR | 7 | ||||
| Dwyer, 2016 (USA) 31 | FNA FNB | 22 & 2522 & 25 | 14/1838/49 | 12/1535/40 | 12/1837/49 | 10/1534/40 | NRNR | NRNR | 3.483.57 | 6 | |
| Kandel, 2016 (USA) 32 | FNAFNB | 19,22,2519,22,25 | 108/11437/39 | NRNR | 23/6713/37 | NRNR | 8 | ||||
| Rodrigues-Pinto, 2016 (USA) 33 | FNAFNB | 22, 2522, 25 | NRNR | 26/3330/33 | NRNR | NRNR | 7 | ||||
FNA, fine-needle aspiration; FNB, fine-needle biopsy; NOS, Newcastle Ottawa Scale; NR, not reported; SD, standard deviation.