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Table 2 Results of quality assessment by Newcastle-Ottawa Scale

From: Radiofrequency ablation versus hepatic resection for recurrent hepatocellular carcinoma: an updated meta-analysis

Study

Selection

Comparability

Assessment of outcome

Total score

Assignment for treatment

Representative treated arm

Representative reference arm

Demonstration of outcome

Comparable for treated arm

Comparable for reference arm

Assessment of outcome

Adequacy follow up

Acceptable length of follow-up

Chan [5]

*

*

 

*

*

 

*

*

*

7

Eisele [26]

*

  

*

  

*

*

*

5

Liang [15]

*

*

*

*

*

*

*

*

*

9

Lu [18]

*

*

*

*

*

*

*

*

*

9

Song [16]

*

*

*

*

*

*

*

*

*

9

Sun [20]

*

*

*

*

*

 

*

*

*

8

Xia [22]

*

*

*

*

*

*

*

*

*

9

Yin [21]

*

*

*

*

*

*

*

*

*

9

Wang [17]

*

*

*

*

*

*

*

*

*

9

Umeda [28]

*

  

*

 

*

*

*

*

6

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BMC Gastroenterology

ISSN: 1471-230X

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