id,title,start,end,country,study extent,data collection,diagnosis,livebirth,vaginal delivery,singleton pregnancy,term delivery,lowrisk pregnancy,Quality ,Chorioamnionitis,denominator
21677762,Abramovici (2014),01/11/2008,01/06/2010,US,5,1,2,1,1,1,0,1,4,121,1785
21680346,Admaty (2012),01/03/2009,01/12/2010,Switzerland,4,2,2,1,0,0,1,0,2,1,143
21696509,Al-Ostad (2015),01/01/1998,31/12/2008,US,1,1,1,0,0,0,0,0,5,92622,5338995
21712606,Bear (2016),01/01/1991,01/12/2001,US,2,1,1,1,0,0,0,0,4,110747,6018504
21707342,Berg (2009),01/01/2001,01/12/2005,US,1,1,1,0,0,0,0,0,4,299790,19986000
21707342,Berg (2009),01/01/1993,01/12/1997,US,1,1,1,0,0,0,0,0,4,362539,19081000
21680060,Bleich (2012),01/01/2003,01/12/2008,US,5,1,4,1,0,1,0,0,4,4323,21991
21680618,Borders (2012),01/01/2009,01/02/2009,US,5,1,4,0,1,1,1,0,3,13,205
21695327,Braun (2016),01/01/2010,01/12/2010,US,3,1,1,1,0,0,1,0,5,1243,31112
21685749,Caughey (2007),01/01/1995,01/12/1999,US,3,1,1,0,0,1,1,1,5,4166,119254
21676721,Cavazos-Rehg (2015),01/01/2009,01/12/2009,US,1,1,1,0,0,0,0,0,5,68449,4109295
21685501,Cheng (2007),01/01/1991,01/12/2002,US,5,1,4,1,0,1,1,0,4,221,5158
21682517,Cheng (2010),01/01/1990,01/07/2008,US,5,2,2,1,0,1,1,0,5,1339,10661
21677036,Danilack (2015),01/01/2011,01/12/2013,US,1,1,4,1,0,0,0,0,2,134413,10458616
21687680,Dotters-Katz (2015),01/01/2008,01/12/2010,US,1,1,1,0,0,0,0,0,5,323476,12524118
21681149,Edwards (2015),01/06/2006,01/11/2007,US,5,2,2,0,0,0,0,0,5,913,15027
21682615,Geller (2010),01/06/1995,01/06/2005,US,5,2,3,0,0,1,1,1,4,637,4048
21683144,Getahun (2010),01/01/1991,01/12/2007,US,3,1,1,1,0,1,0,0,3,12713,397852
21801600,Getahun (2013),01/01/1995,01/12/2010,US,3,1,1,0,0,1,0,0,4,19428,471821
21684729,Grotegut (2008),01/01/2003,01/06/2005,US,5,1,2,0,0,0,0,0,4,1,165
21680054,King (2012),01/08/1995,01/02/2004,US,5,1,1,1,0,1,1,0,4,1851,14406
21676286,Magann (2008),01/03/2004,01/02/2005,US,5,3,4,0,1,1,0,0,4,35,1607
21698230,Malloy (2014),01/01/2008,01/12/2008,US,1,1,1,1,0,1,1,0,4,22011,2224406
21681445,Matsuda (2011),01/01/2001,01/12/2005,Japan,3,1,2,0,0,1,0,0,4,2508,242715
21677986,Nelson (2014),01/10/2005,01/12/2011,US,5,3,4,1,0,1,1,0,4,5710,86371
21682130,Osmundson (2011),01/07/2006,01/06/2008,US,5,1,4,0,0,1,1,1,3,20,102
21676129,Shah (2011),01/09/2008,01/11/2008,Pakistan,4,1,4,0,0,1,0,1,2,7,916
21676350,Suthee (2007),01/01/1999,01/12/2003,Thailand,5,2,2,1,0,1,1,1,5,10,1079