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Table 3 Quality scoring of included studies (n = 81)

From: A scoping review of severe maternal morbidity: describing risk factors and methodological approaches to inform population-based surveillance

REFERENCE NUMBER LAST NAME OF FIRST AUTHOR YEAR SELECTION (MAX 3) *** RISK FACTORS
(MAX 4) ****
OUTCOME (MAX 3) *** TOTAL SCORE
[16] ABE 2018 ** ** * 5
[17] ADMON 2018 *** ** * 6
[18] ADMON 2018 *** ** ** 7
[19] ATTANASIO 2017 * ** * 4
[20] BANNISTER-TYRRELL 2015 ** ** * 5
[21] BARGER 2013 *** ** * 6
[22] BATEMAN 2013 ** *** ** 7
[23] BELANOFF 2016 *** ** * 6
[24] BIN 2016 ** ** * 5
[25] BLANC 2019 * *** * 5
[26] BOOKER 2018 *** *** ** 8
[27] BOOKER 2018 ** ** ** 6
[28] BOURJEILY 2017 ** *** * 6
[29] BOZZUTO 2019 *** ** * 6
[30] CHEN 2015 ** *** * 6
[31] CHEN 2013 ** *** * 6
[32] CLAPP 2018 *** *** ** 8
[33] CREANGA 2014 *** ** ** 7
[34] DAYAN 2019 ** *** * 6
[35] DAYAN 2018 * *** * 5
[36] FELDMAN 2015 *** *** * 7
[37] FORD 2015 ** ** ** 6
[38] FREDERIKSEN 2017 *** ** ** 7
[39] FRIEDMAN 2016 *** *** ** 8
[40] GIBBS PICKENS 2018 *** ** * 6
[41] GRASCH 2017 * *** * 5
[42] GRAY 2012 *** *** * 7
[43] GROBMAN 2014 *** **** *** 10
[44] GUGLIELMINOTTI 2019 *** ** ** 7
[45] HEHIR 2013 ** *** ** 7
[46] HOWELL 2017 ** ** ** 6
[47] HOWELL 2016 ** *** ** 7
[48] HOWELL 2016 *** ** * 6
[49] HOWELL 2014 ** *** ** 7
[50] HOWLAND 2019 ** *** ** 7
[8] JOSEPH 2010 ** ** * 5
[51] KILPATRICK 2016 *** ** *** 8
[52] KORST 2014 *** *** * 7
[53] LAZARIU 2017 *** ** * 6
[54] LE RAY 2019 ** *** *** 8
[55] LEONARD 2019 *** *** ** 8
[56] LEONARD 2019 *** *** ** 8
[57] LEONARD 2019 *** *** ** 8
[58] LIESE 2019 *** ** ** 7
[59] LINDQUIST 2015 ** *** * 6
[60] LIPKIND 2019 ** ** ** 6
[61] LISONKOVA 2016 ** ** * 5
[62] LISONKOVA 2017 *** *** * 7
[63] LISONKOVA 2017 *** *** * 7
[64] LISONKOVA 2014 *** *** * 7
[65] LIU 2013 ** * * 4
[66] LIU 2007 ** ** * 5
[67] LUKE 2019 *** ** * 6
[68] LYNDON 2019 *** ** * 6
[69] LYNDON 2015 *** ** * 6
[70] MARTIN 2016 ** *** * 6
[71] MASTERS 2018 *** *** * 7
[72] METCALFE 2018 *** *** * 7
[73] MOURAD 2014 ** ** * 5
[74] MURACA 2019 * * * 3
[75] NAM 2019 ** ** * 5
[76] OSMUNDSON 2016 *** ** * 6
[77] PALLASMAA 2014 ** ** * 5
[78] PLATNER 2019 ** *** ** 7
[79] RAMAGE 2019 *** * * 5
[80] RAY 2018 ** *** * 6
[81] REID 2018 ** *** ** 7
[82] ROBERTS 2009 ** ** * 5
[83] ROSENBLOOM 2017 ** **** * 7
[84] ROY 2019 *** ** * 6
[85] SCHUMMERS 2018 ** **** * 7
[86] SCHUMMERS 2015 ** **** ** 8
[87] SHAND 2016 ** *** * 6
[88] SIDDIQUI 2019 ** **** ** 8
[89] URQUIA 2017 ** * * 4
[90] URQUIA 2015 * * ** 4
[91] VANDERLAAN 2019 *** *** ** 8
[92] WAHLBERG 2013 ** *** ** 7
[93] WANG 2016   **** *** 7
[3] WEN 2005 ** *** * 6
[95] YOUNG 2018 ** * * * 5