Skip to main content

Table 2 Assessment of methodological quality

From: The new Zero-P implant can effectively reduce the risk of postoperative dysphagia and complications compared with the traditional anterior cage and plate: a systematic review and meta-analysis

 

selection

comparability

exposure

scores

 

1

2

3

4

5

6

7

 

Wang 2013

 

*

*

*

*

 

*

*****

Petr 2013

*

*

*

**

**

*

*

*********

Miao 2013

 

*

*

*

*

*

*

******

Hofstetter 2013

*

*

*

**

*

*

*

********

QI 2013

*

*

*

*

*

*

*

*******