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Jadad scale for quality assessment of RCT (High quality RCT presenting ≥ 3 points).
| Jadad scale | Heitz-Mayfield et al., 2011 | Thöne-Mühling et al., 2010 | Ramberg et al., 2009 |
|---|---|---|---|
| 1. Randomisation | |||
| Reported | 1 | 1 | 1 |
| Adequately | 1 | 1 | |
| Inadequately | |||
| Not reported | |||
|
| |||
| 2. Double-blinding | |||
| Reported | 1 | 1 | |
| Adequately | 1 | 1 | |
| Inadequately | |||
| Not reported | 0 | ||
|
| |||
| 3. Withdrawal/Dropouts | |||
| Reported | 1 | 1 | 1 |
| Not reported | |||
|
| |||
| Quality point | 5 | 3 | 4 |
allocation concealment was reported in all the three studies
