Table 3: Score breakdown on the Jadad scale for each study.

Author (year) Randomization and explanation Single blinding and explanation Description of participant withdrawal/dropout Total score Rakhshani et al. (2010) [31] 2 2 1 5 Satyapriya et al. (2009) [32] 2 2 1 5 Sun et al. (2010) [28] 0 0* 1 1 Chuntharapat et al. (2008) [33] 2 0 0 2 Narendran et al. (2005) [30] 0 0 0 0 Narendran et al. (2005) [29] 0 0 0 0

*Study authors state that the methodology was double blind, but in light of other information provided, it is clear that it was not.