Table 4: Jadad criteria used to assess quality of RCTs.

Publication

Randomization

Method of randomization described & appropriate

Blinding mentioned

Method of blinding described and appropriate

Withdrawal and dropout of subjects provided

Total score

Kahathuduwa, et al. [28] USA

1

1

1

0

1

4

Kahathuduwa, et al. [35] USA

1

0

1

0

0

2

Einöther, et al. [3] Netherlands

1

0

1

1

0

3

Ide, et al. [36] Japan

1

1

1

0

1

4

Dodd, et al. [37] UK

1

1

1

1

0

4

Ota, et al. [38] Japan

1

0

1

0

0

2

Yoto, et al. [39] Japan

1

1

1

0

0

3

Shiah & Radin [40] Taiwan

1

1

1

0

1

4

Foxe, et al. [41] USA

1

0

1

0

1

3

De Bruin, et al. [42] Netherlands

1

1

1

1

1

5

Giesbrecht, et al. [43] Netherlands

1

0

1

1

0

3

Total quality assessment score for which scores range between 1 and 5: with 1 being the lowest quality and 5 being the highest quality. 3 = Above average quality; *Described elsewhere.