Table 3 The quality assessment according to the Newcastle Ottawa Quality Assessment Scale (NOQAS) of each study

Our study

2021

4

2

3

9

Descamps et al.

1999

3

2

2

7

Hanson et al.

2002

3

2

2

7

Mac-Thiong et al.

2004

3

2

3

8

Mac-Thiong et al.

2007

4

2

3

9

Upasani et al.

2007

4

2

2

8

Mac-Thiong et al.

2011

4

2

3

9

Qiu et al.

2012

3

2

2

7

Lee et al.

2012

4

2

3

9

Schlösser et al.

2013

4

2

2

8

Ghandhari et al.

2013

4

2

3

9

Pasha et al.

2014

3

2

2

7

Zhu et al.

2014

4

2

3

9

Zhu et al.

2014

4

2

3

9

Ries et al.

2015

3

2

2

7

Hiyama et al.

2016

3

2

2

7

Liu et al.

2018

4

2

3

9

Alzakri et al.

2019

4

2

3

9