The interpretations of the Jadad score evaluation
| Author year (ref no) | Randomisation | Blinding | Withdrawals and dropouts | Total |
| Calo et al 200520 | 2 | 0 | 1 | 3 |
| Erdogan et al 2007* 24 | 1 | 1 | 1 | 3 |
| Margos et al 2007* 27 | 1 | 0 | 1 | 2 |
| Heidt et al 200921 | 1 | 1 | 1 | 3 |
| Heidarsdottir et al 201022 | 1 | 1 | 1 | 3 |
| Saravanan et al 201023 | 2 | 1 | 1 | 4 |
| Sandesara et al 2010* 26 | 2 | 1 | 1 | 4 |
| Bianconi et al 201025 | 2 | 1 | 1 | 4 |
| Nodari et al 2010* 28 | 1 | 0 | 1 | 2 |
| Kowey et al 201029 | 2 | 2 | 1 | 5 |
↵* Abstract only.