Table 1.
Characteristics of the studies included in the meta-analysis.
| Study | Country | Design | Total number | TP | FP | FN | TN |
|---|---|---|---|---|---|---|---|
| Rho J H (2013) 15 | Korea | retrospective | 12 | 11 | 0 | 1 | 0 |
| Rerksuppaphol S(2004)16 | Australia | retrospective | 9 | 7 | 0 | 2 | 0 |
| Chen Q(2018)17 | China | retrospective | 78 | 55 | 0 | 23 | 0 |
| Papparella A(2014) 18 | Italy | retrospective | 19 | 11 | 1 | 6 | 1 |
| Shalaby RY(2005)19 | Egypt | retrospective | 7 | 3 | 1 | 2 | 1 |
| Al Janabi M(2014)20 | UK | prospective | 61 | 32 | 18 | 6 | 5 |
| Sancar (2015)21 | Turkey | retrospective | 8 | 4 | 2 | 1 | 1 |
| Swaniker F (1999)12 | USA | retrospective | 43 | 12 | 0 | 8 | 23 |
| Leonidas J C(1974)22 | USA | retrospective | 13 | 3 | 0 | 1 | 9 |
| Cooney D R(1982)23 | USA | retrospective | 266 | 12 | 14 | 2 | 238 |
| Gelfand M J(1978)24 | USA | retrospective | 55 | 7 | 2 | 2 | 44 |
| Ho JE(1975)25 | USA | retrospective | 20 | 3 | 0 | 0 | 17 |
| Fries M(1984) 26 | SWEDEN | retrospective | 22 | 9 | 0 | 3 | 10 |
| Poulsen KA(2000)27 | Denmark | retrospective | 55 | 3 | 1 | 2 | 49 |
| Kong MS(1994) 28 | Taiwan(China) | retrospective | 101 | 39 | 2 | 8 | 52 |
| Sinha CK(2013) 29 | UK | retrospective | 183 | 17 | 5 | 1 | 160 |
| Dolezal J(2008)30 | Czech Republic | retrospective | 80 | 3 | 0 | 0 | 77 |
| Mittal BR(2008)31 | India | retrospective | 105 | 16 | 3 | 0 | 6 |
| McCulley S(1996)32 | South Africa | retrospective | 77 | 4 | 6 | 2 | 65 |