. 2017 Sep 20;6(8):647–658. doi: 10.1530/EC-17-0243
This work is licensed under a Table 2.
Quality assessment of included trials.
| Study | Randomization | Allocation concealment | Blinding | Selection criteria described | Comparable baseline | Withdrawal dropout described |
|---|---|---|---|---|---|---|
| Genazzani et al. (48) | M | Unclear | N | Y | Y | Unclear |
| Costantino et al. (47) | M | Unclear | Y, double-blind | Y | Y | Unclear |
| Gerli et al. (49) | Y, computer-generated | Unclear | Y, double-blind | Y | Y | Y |
| Artini et al. (46) | Y, computer-generated | Y, sealed numbered envelopes | Unclear | Y | Y | Y |
| Pizzo et al. (50) | M | Unclear | Y, double-blind | Y | Y | Unclear |
| Pkhaladze et al. (53) | M | N | N | Y | Y | Unclear |
| Ozay et al. (54) | Y | Unclear | N | Y | Y | M |
| Nordio and Proietti (51) | M | N | N | Y | Y | Unclear |
| Benelli et al. (52) | M | Unclear | N | Y | Y | Unclear |
Evaluation according to the methods recommended by the Cochrane Handbook 5.0.2 (37).
M, the method was mentioned, but there was not detailed description; N, the method was not used in the study; Unclear, no relevant information was found in the study; Y, the method was reported with detailed description.