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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