Modified Jadad scale.
|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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