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Table 1 Newcastle-Ottawa Scale (NOS) score for included studies

From: Bladder preservation approach versus radical cystectomy for high-grade non-muscle-invasive bladder cancer: a meta-analysis of cohort studies

Study

Year

Selection

Comparability

Outcome

Scale

Exposed

Non-exposed

Ascertainment of exposure

Start without outcome present

Major factor

Addition factor

Outcome assessment

Follow-up length

Adequacy of outcome

Badalato

2012

 

8

De Berardinis

2011

 

8

Denzinger

2008

 

8

Hautmann

2009

 

  

7

Jager

2011

9

Li

2011

 

8

Patard

2001

 

 

7

Spaliviero

2014

  

7

Sun

2008

 

8

Thalmann

2004

 

8

Wong

2009

 

 

7