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Table 3 Pregnant women group baseline characteristics of included studies
| Province | Total individuals | IgG-positive cases (%) | IgM-positive cases (%) | IgG- and IgM-positive cases (%) | Total prevalence (%) | Authors |
|---|---|---|---|---|---|---|
| Kermanshah | 495 | 162(32.72) | 162(32.72) | Athari et al., 1994 | ||
| Mazandaran | 612 | 435(71.07) | 435(71.07) | Saffar et al., 1999 | ||
| Isfahan | 317 | 98(30.91) | 4(1.26) | 102(32.17) | Talari et al., 2001 | |
| Isfahan | 340 | 207(60.88) | 207(60.88) | Arbabi et al., 2002 | ||
| Tehran | 4120 | 2804(68.05) | 2804(68.05) | Gharavi et al., 2002 | ||
| Tehran | 140 | 48(34.28) | 10(7.14) | 58(41.42) | Noorbakhsh et al., 2002 | |
| Isfahan | 270 | 72(26.66) | 15(5.55) | 87(32.22) | Talari et al., 2003 | |
| Hormozgan | 418 | 143(34.21) | 33(7.89) | 10(2.39) | 186(44.49) | SotoudehJahromi et al., 2003 |
| Qom | 600 | 257(42.83) | 257(42.83) | Mardani et al., 2003 | ||
| Sistan and Baluchestan | 200 | 54(27) | 54(27) | Sharifi Mood et al., 2004 | ||
| Chaharmahal and Bakhtiari | 384 | 106(27.60) | 106(27.60) | Manuchehri et al., 2007 | ||
| Khuzestan | 79 | 28(35.44) | 28(35.44) | Sohrabi et al., 2007 | ||
| Ilam | 553 | 247(44.66) | 247(44.66) | Abdi et al., 2008 | ||
| Hamedan | 576 | 193(33.50) | 193(33.50) | Fallah et al., 2008 | ||
| Qazvin | 255 | 160(62.74) | 160(62.74) | Eskandarian et al., 2009 | ||
| Kurdistan | 201 | 54(26.86) | 24(11.94) | 33(16.41) | 111(55.22) | Parvizpour et al., 2010 |
| Lorestan | 390 | 121(31.02) | 29(7.43) | 150(38.46) | Cheraghi Pour et al., 2010 | |
| Lorestan | 331 | 130(39.27) | 35(10.57) | 165(49.84) | Cheraghi Pour et al., 2010 | |
| Isfahan | 127 | 67(52.75) | 67(52.75) | Ghasemi et al., 2011 | ||
| Zanjan | 500 | 186(37.2) | 7(1.4) | 193(38.60) | Hajsoleimani et al., 2012 | |
| Hormozgan | 608 | 252(41.44) | 252(41.44) | JamshidiMakiani et al., 2012 | ||
| East Azerbaijan | 300 | 79(26.33) | 1(0.33) | 80(26.66) | DalimiAsl et al., 2012 | |
| Mazandaran | 1057 | 739(69.91) | 57(5.39) | 796(75.30) | SiyadatPanah et al., 2013 | |
| Qom | 200 | 76(38) | 11(5.5) | 87(43.50) | Akhlaghi et al., 2013 | |
| Razavi Khorasan | 419 | 144(34.36) | 27(18.75)a | 171(40.81) | Babaie et al., 2013 | |
| Hamedan | 350 | 105(30) | 3(2.85)b | 108(30.85) | Maghsood et al., 2013 | |
| Sistan and Baluchestan | 221 | 68(30.76) | 3(1.35) | 3(1.35) | 74(33.48) | Ebrahimzadeh et al., 2013 |
| Lorestan | 496 | 154(31.04) | 35(22.72)c | 189(38.10) | RostamiNejad et al., 2013 | |
| Qom | 400 | 145(36.25) | 21(5.25) | 166(41.50) | Maleki et al., 2013 | |
| Markazi | 308 | 117(37.98) | 3(1.74)d | 120(38.96) | Vakil et al., 2014 | |
| Mazandaran | 289 | 170(58.82) | 7(2.42) | 4(1.38) | 181(62.62) | Hoseini et al., 2014 |
| Sistan and Baluchestan | 185 | 19(10.27) | 1(0.54) | 1(0.54) | 21(11.35) | Mousavi et al., 2014 |
| Mazandaran | 175 | 106(60.57) | 106(60.57) | Kalantari et al., 2014 | ||
| Golestan | 555 | 221(39.81) | 19(3.42) | 8(1.44) | 248(44.68) | Sharbatkhori et al., 2014 |
| Khuzestan | 501 | 137(27.34) | 7(1.39) | 3(0.59) | 147(29.34) | Yadyad et al., 2014 |
| Tehran | 785 | 244(31.08) | 244(31.08) | Ghasemloo et al., 2014 | ||
| East Azerbaijan | 195 | 115(58.97) | 115(58.97) | Haji SeidJavadi et al., 2014 | ||
| Mazandaran | 50 | 26(52) | 26(52) | ElahianFirouz et al., 2014 | ||
| Yazd | 181 | 58(32.04) | 58(32.04) | Anvari et al., 2014 | ||
| Alborz | 400 | 116(29) | 4(1) | 120(30) | Akhlaghi et al., 2014 | |
| Isfahan | 798 | 341(42.73) | 5(0.62) | 346(43.35) | Rasti et al., 2015 | |
| Qazvin | 200 | 58(29) | 4(2) | 62(31) | Tabatabaieet al., 2015 | |
| East Azerbaijan | 391 | 267(68.28) | 267(68.28) | Rajaii et al., 2015 | ||
| Hamedan | 2523 | 681(26.99) | 51(2.02) | 732(29.01) | Hamidi et al., 2015 | |
| Khuzestan | 110 | 47(42.72) | 3(2.72) | 50(45.45) | Saki et al., 2016 |
