Table 1

Jadad Scoring for quality assessment of included trials

TrialsRandomisation mentionedConcealment of randomisationBlindingAppropriate blinding methodReporting of withdrawalsJadad score
Harrison et al 12 YesYesYesYesYes5
Vajro et al 18 YesYesYesYesUnclear4
Nobili et al 16 YesUnclearYesUnclearYes3
Nobili et al 17 YesYesYesYesYes5
Sanyal et al 15 YesUnclearYesYesYes4
Foster et al 13 YesUnclearYesYesUnclear3
Lavine et al 6 YesYesYesYesYes5
Hoofnagle et al 14 YesUnclearYesUnclearYes3
Aller et al 1 YesUnclearYesUnclearUnclear2