Table 1. Excluded studies with reasons.
| Study | Reason for exclusion | Study | Reason for exclusion | Study | Reason for exclusion |
|---|---|---|---|---|---|
| Ahmed 2001[27] | No data to be extracted | Gregory 2010[96] | No data to be extracted | Muhammad 2006[7] | No data to be extracted |
| Arif 2009[28] | No data to be extracted | Guzman 1996[46] | No data to be extracted | Munir 1982[8] | No data to be extracted |
| Awasthi 2012[29] | Wrong test | Hanif 2011[47] | No data to be extracted | Munir 2014[60] | No data to be extracted |
| Ayyub 2006[30] | No data to be extracted | Horstick 2012[48] | Wrong study design | Namvongsa 2013[61] | No data to be extracted |
| Bandyopadhyay 2006[31] | Wrong study design | Horstick 2014[49] | Wrong study design | Narayanan 2003[62] | No data to be extracted |
| Cavalcanti 2010[32] | Wrong test | Ismail 2006[50] | No data to be extracted | Naskar 2014[63] | Wrong test |
| Chairulfatah 1995[33] | No data to be extracted | Jhamb 2010[51] | Wrong study design | Nunes Araujo 2003[64] | Wrong test |
| Chuansumrit 2010[34] | No data to be extracted | Kabra 1999[4] | No data to be extracted | Padbidri 1995[65] | Wrong study design |
| Chutinimitkul 2005[35] | Wrong test | Kalayanarooj 2003[52] | Wrong study design | Pancharoen 2001[66] | No data to be extracted |
| Daniel 2005[36] | No data to be extracted | Kapse 2003[53] | Wrong study design | Pandey 2008[67] | Wrong test |
| Diaz Quijano 2008[37] | No data to be extracted | Kittitrakul 2015[54] | No data to be extracted | Phuong 2006[68] | No data to be extracted |
| Diaz Quijano 2009[38] | Wrong test | Kulkarni 2010[55] | No data to be extracted | Prathyusha 2013[69] | No data to be extracted |
| Diaz Quijano 2010[39] | No data to be extracted | Mamani 2010[56] | No data to be extracted | Quiroz Moreno 2006[70] | Wrong test |
| Eram 1979[40] | No data to be extracted | Manjith 2002[5] | No data to be extracted | Ramirez Ronda 1987[71] | Wrong study design |
| Faridi 2008[41] | No data to be extracted | Meltzer 2012[57] | Wrong test | Ramirez Zepeda 2009[72] | No data to be extracted |
| Filho 2012[42] | No data to be extracted | Mendez 2003[6] | No data to be extracted | Rao 2013[73] | No data to be extracted |
| Fonseca 2012[43] | Wrong test | Mishra 2014[58] | Wrong test | Restrepo 2012[74] | Wrong test |
| Gomber 2001[44] | No data to be extracted | Mourao 2007[59] | No data to be extracted | Ribeiro 2010[75] | No data to be extracted |
| Richards 1997[76] | No data to be extracted | Sri 1999[82] | Wrong test | Villar 2011[88] | Wrong test |
| Rigau Perez 1997[77] | No data to be extracted | Sunil 2001[83] | No data to be extracted | Wali 1999[89] | No data to be extracted |
| Setiati 2007[78] | No data to be extracted | Tham 1996[84] | Wrong study design | Whitehorn 2010[90] | Wrong study design |
| Shah 2006[79] | No data to be extracted | Tomashek 2010[85] | No data to be extracted | Yadav 2008[92] | Wrong study design |
| Sharmin 2013[80] | No data to be extracted | Uddin 2014[86] | No data to be extracted | Yewale 2009[93] | Wrong study design |
| Wiwanitkit 2005[91] | Wrong test | Zhang 2005[95] | No data to be extracted | Zhang 2007[94] | No data to be extracted |
| Shibani 2006[81] | Wrong study design | Vargas 2001[87] | No data to be extracted |