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Table 2 The study period, setting, birth outcome, and quality of included studies in the systematic review and meta-analysis, 2020

From: Birth prevalence of neural tube defects and associated risk factors in Africa: a systematic review and meta-analysis

First author

Birth outcome

Prevalence period

Study setting

Study quality

Gedefaw et al. [2]

LB + SB

2016

Institution-based

Low risk

Nasri et al. [3]

LB + SB

1991–2011

Institution-based

Low risk

Adane et al. [5]

LB + SB

2015–2017

Institution-based

Low risk

Anyanwu et al. [6]

LB

2013

Institution-based

Low risk

Houchar et al. [7]

LB + SB

2004–2006

Institution-based

Low risk

Berihu et al. [9]

LB + SB

2016–2017

Institution-based

Low risk

Taye et al. [10]

LB

2015

Institution-based

Low risk

Abebe et al. [11]

LB + SB

2011–2015

Institution-based

Low risk

Nnadi et al. [12]

LB + SB

2011–2013

Institution-based

Low risk

Githuku et al. [13]

LB

2005–2010

Institution-based

Low risk

Estifanos et al. [14]

LB + SB

2007–2011

Institution-based

Low risk

Toma et al. [15]

LB + SB

2013–2016

Institution-based

Low risk

Audu et al. [16]

LB

2000–2003

Institution-based

Low risk

Legesse et al. [17]

LB + SB

2018–2019

Institution-based

Low risk

Nasri et al. [8]

LB + SB

2008–2011

Institution-based

Low risk

Ahuka et al. [47]

LB

1993–2001

Institution-based

Low risk

Oumer et al. [48]

LB + SB

2014–2015

Institution-based

Low risk

Alhassan et al. [49]

LB + SB

2010–2014

Institution-based

Low risk

Alrede et al. [50]

LB + SB

1987–1990

Institution-based

Low risk

Ekanem et al. [51]

LB + SB

1980–2003

Institution-based

Low risk

Singh et al. [52]

LB + SB

1995–1996

Institution-based

Low risk

Mohammed et al. [53]

LB

2007

Institution-based

Low risk

Njamnshi et al. [54]

LB + SB

1997–2006

Institution-based

Low risk

Sayed et al. [55]

LB + SB

2004–2005

Institution-based

Low risk

Masamati et al. [58]

LB + SB

1998–1999

Institution-based

Low risk

Venter et al. [59]

LB

1989–1992

Institution-based

Low risk

Buccimazza etal [60].

LB + SB

1973–1992

Institution-based

Low risk

Kinasha et al. [61]

LB

2000–2002

Institution-based

Low risk

Elsheikh et al. [62]

LB + SB

2003–2004

Institution-based

Low risk

Krzesinski et al. [63]

LB + SB

2003–2013

Institution-based

Low risk

Anyebuno et al. [57]

LB + SB

1991–1992

Institution-based

High risk

Adetiloye et al. [66]

LB + SB

1982–1992

Institution-based

High risk

Sorri et al. [64]

LB + SB

2009–2012

Institution-based

–

Ugwo et al. [65]

LB + SB

2002–2005

Institution-based

–

Cornell et al. [67]

LB + SB

1975–1980

Institution-based

–

Kromberg et al. [68]

LB + SB

–

Institution-based

–

  1. Key: LB Live births, SB Stillbirths