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Table 2 Characteristics of the primary studies included in the meta-analysis

From: Assisted reproductive technology and the risk of preeclampsia: an updated systematic review and meta-analysis

Author DOP Country Period Design PE in ART ART group PE in NART NART group
Julie Hoy [42] 1999 Australia 1982–1995 Cohort 131 1552 399 7717
O.Salha [43] 1999 UK 1992–1997 Cohort 13 112 1 112
A.Geipel [44] 2001 Germany 1995–1999 Cohort 6 114 11 114
Anne Lynch [45] 2002 USA 1994–2000 Cohort 27 198 40 330
Syeda Zaib-un-Nisa [46] 2003 Emirates 1997–2001 Cohort 4 36 4 96
Pinborg [47] 2004 Denmark 1997 Cohort 71 870 49 566
Barbara Luke [48] 2004 USA 1990–2002 Cohort 25 228 24 725
Bengt Kallen [49] 2005 Sweden 1982–2001 Cohort 978 13,261 55,728 2,013,633
Fiona Thomson [50] 2005 Scotland 1989–1999 Cohort 70 1437 556 21,688
Sonia Hernandez-Diaz [51] 2006 USA & Canada 1998–2006 Cohort 18 349 115 4762
Erez [52] 2006 Israel 1988–2002 Cohort 51 292 193 2336
Prefumo [53] 2007 UK NA Case Control 1 31 1 62
Apantaku [24] 2008 UK 1999–2004 Cohort 6 88 7 88
Chen [54] 2009 Canada 2005 Cohort 34 1357 77 5190
Sun [55] 2009 Canada 2004–2007 Cohort 31 2118 112 8420
Morcel [56] 2010 France 2001–2005 Cohort 12 104 13 173
Miyake [57] 2010 Japan 2005–2007 Cohort 15 20 111 230
Suzuki [58] 2010 Japan 2000–2007 Cohort 4 64 9 87
Lehnen [28] 2011 Germany 2000–2009 Cohort 10 74 8 305
Yang [59] 2011 Korea 1995–2008 Cohort 9 67 22 143
Kuivasaari-Pirinen [60] 2012 Finland 1996–2007 Cohort 16 255 967 26,870
Bamberg [61] 2012 Germany 1998–2008 Cohort 14 426 24 813
Lubovnik [62] 2012 Slovenia 1997–2009 Case Control 55 246 126 477
Sazonova [63] 2012 Sweden 2002–2006 Cohort 520 11,292 15,984 571,914
Mohammed [64] 2012 Qatar 2002–2011 Cohort 27 145 30 175
Le Ray [65] 2012 France 2008–2010 Cohort 24 144 9 236
Emily Werder [66] 2013 USA 2002–2008 Cohort 45 215 62 232
Sara S. Malchau [67] 2013 Denmark 1995–2010 Cohort 1185 24,305 2519 56,022
Rocio Revello [68] 2013 Italy 2000–1010 Cohort 28 88 14 59
Sari Raisanen [69] 2013 Finland 2006–2010 Cohort 90 5647 3138 285,357
Alex Fong [70] 2014 USA 2009 Case Control 29 551 7487 406,334
Nathan S. Fox [71] 2014 USA 2005–2012 Case Control 61 376 15 137
Tandberg [39] 2014 Norway 1967–2009 Cohort 5516 8549 24,971 493,217
Tali Silberstein [72] 2014 Israel NA Cohort 113 1294 7889 171,513
Cagrı Arıoglu Aydın [23] 2015 Istanbul 2007–2010 Cohort 13 137 46 133
Anne-Maude Morency [73] 2015 Canada 2000–2013 Cohort 39 181 4 49
Robert Johnston [27] 2015 USA 2009 Cohort 29 551 7847 406,334
Malinda S. Lee [74] 2015 USA 2006–2008 Cohort 17 108 176 2284
Bay [75] 2016 Denmark 1999–2013 Cohort 2675 30,418 37,531 896,448
DoPierala [76] 2016 UK 1992–2009 Cohort 203 3188 2341 52,443
Nejdet [77] 2016 Sweden 2003–2012 Cohort 1156 27,084 27,912 999,804
Zhu [78] 2016 China 2006–2014 Cohort 98 2641 110 5282
Vikstrom [79] 2016 Sweden 1988–2012 Case Control 607 10,412 822 18,624
Ben-Yaakov [80] 2016 Israel 1988–2012 Cohort 378 4153 4471 95,138
Sun [81] 2016 China 2010–2014 Cohort 42 411 54 742
Valenzuela-Alcaraz [26] 2016 Spain 2004–2010 Cohort 6 488 0 200
Rizzo [82] 2016 Italy 2007–2014 Cohort 17 249 6 260
Guilbaud [25] 2017 France 2010–2014 Cohort 41 303 32 369
  1. DOP Date of publication, PE Preeclampsia, ART Assisted Reproductive Technology, NART Non-Assisted Reproductive Technology
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BMC Pregnancy and Childbirth

ISSN: 1471-2393

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