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Table 2 Summary of those records excluded at the full-text screening stage because (1) the sample size was less than 20 participants, (2) because the articles were not available in English, or (3) they recruited participants below 18 years of age. Details are broken down by country

From: Systematic review of outcome domains and instruments used in clinical trials of tinnitus treatments in adults

 

Sample size <20

Non- English language

Minimum eligibility (age in years)

13

14

15

16

17

Austria

   

1

  

1

Belgium

2

    

1

 

Czech Republic

       

Finland

2

      

France

3

      

Germany

4

1

 

2

 

4

 

Italy

3

     

1

Spain

1

      

Sweden

3

      

Switzerland

1

    

1

 

The Netherlands

3

      

Turkey

    

1

  

Iran

 

2

  

1

  

Iraq

  

1

    

Israel

1

      

Egypt

   

1

   

Brazil

2

1

  

1

  

Uruguay

1

      

China

 

6

  

1

 

1

Japan

3

      

Republic of Korea

1

1

 

1

 

1

 

Australia

2

     

1

New Zealand

1

    

1

 

USA/Canada

22

      
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Trials

ISSN: 1745-6215