Table 1

Jadad Scoring for quality assessment of included trials

 Trials Randomisation mentioned Concealment of randomisation Blinding Appropriate blinding method Reporting of withdrawals Jadad score Harrison et al 12 Yes Yes Yes Yes Yes 5 Vajro et al 18 Yes Yes Yes Yes Unclear 4 Nobili et al 16 Yes Unclear Yes Unclear Yes 3 Nobili et al 17 Yes Yes Yes Yes Yes 5 Sanyal et al 15 Yes Unclear Yes Yes Yes 4 Foster et al 13 Yes Unclear Yes Yes Unclear 3 Lavine et al 6 Yes Yes Yes Yes Yes 5 Hoofnagle et al 14 Yes Unclear Yes Unclear Yes 3 Aller et al 1 Yes Unclear Yes Unclear Unclear 2