Open Access

Table II

Modified Jadad scale.

Criteria Yes No Not described/unclear
Q1. Is this a randomized controlled trial? Continued Stop  
Q2. The study is reported as a randomized trial +1 0  
Q3. Randomization is appropriate +1 –1  
Q4. The study is reported as double-blind +1 0  
Q5. Double-blinding is appropriate +1 –1  
Q6. Excluded patients are reported by number and reason +1 0  
7. Jadad scale out of 5      
Q8. The method(s) used to assess adverse events is described +1 0  
Q9. The method(s) of statistical analysis is described +1 0  
Q10. Inclusion and/or exclusion criteria are reported +1 0  
11. Modified Jadad scale out of 11      
Q12. Was the randomization sufficiently concealed?      
Q13. Was the analysis based on the intention-to-treat (ITT) principle?      
Q14. Was the sample size justified?      

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