Table 2: Quality assessment of RCTs in this study.

SourceRandomizationBlindingWithdrawals and dropoutsJadad score

Beaumont and Boeckxstaens (2009) [12]1113
Cange et al. (2002) [13]1113
Ciccaglione and Marzio (2003) [14]1214
Cossentino et al. (2012) [15]2215
Gerson et al. (2010) [16]2215
Grossi et al. (2008) [17]1214
Lidums et al. (2000) [18]1113
Omari et al. (2006) [19]1214
van Herwaarden et al. (2002) [20]1113