Table 3 Risk of bias assessment of included studies according to the CONSORT Checklist
Item | Cynthia El Hajj, 2019 | Cynthia El Hajj, 2020 | Ghada El-Hajj Fuleihan, 2017 | Zahra Hoseini, 2020 | Ilkin Naharci, 2012 | Kim, Hyoung-Jun, 2014 | Krzysztof Prusik, 2018 | Sylwia Wenclewska, 2019 | M. D. Witham, 2010 | M.D. Witham, 2012 | Adrian D. Wood, 2012 |
|---|---|---|---|---|---|---|---|---|---|---|---|
1a | Yes | Yes | Yes | Yes | No | No | Yes | Yes | Yes | Yes | Yes |
1b | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
2a | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes |
2b | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | Yes | Yes | No |
3a | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
3b | No | No | No | No | No | No | No | No | No | No | No |
4a | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
4b | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
5 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
6a | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
6b | No | No | No | No | No | No | No | No | Yes | No | No |
7a | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
7b | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
8a | Yes | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | Yes |
8b | No | No | No | No | No | Yes | Yes | Yes | No | Yes | Yes |
9 | Yes | Yes | No | No | No | Yes | Yes | Yes | Yes | Yes | Yes |
10 | Yes | Yes | No | No | No | Yes | No | No | No | Yes | Yes |
11a | Yes | Yes | No | No | No | No | No | No | No | Yes | Yes |
11b | No | No | No | No | No | No | No | No | No | Yes | Yes |
12a | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
12b | Yes | No | No | No | No | No | No | Yes | No | Yes | Yes |
13a | Yes | Yes | Yes | Yes | No | No | No | No | Yes | Yes | Yes |
13b | Yes | Yes | Yes | Yes | No | No | No | No | Yes | Yes | Yes |
14a | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
14b | No | No | No | No | No | No | No | No | No | No | Yes |
15 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
16 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
17a | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
17b | Yes | Yes | No | Yes | No | No | No | Yes | No | Yes | Yes |
18 | No | No | Yes | No | Yes | No | No | No | Yes | Yes | No |
19 | No | No | Yes | No | Yes | Yes | Yes | Yes | Yes | No | Yes |
20 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
21 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
22 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
23 | Yes | Yes | Yes | Yes | No | No | Yes | Yes | Yes | Yes | Yes |
24 | Yes | Yes | No | Yes | No | No | No | No | Yes | Yes | Yes |
25 | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
Total | 30 | 29 | 26 | 23 | 21 | 23 | 25 | 26 | 29 | 33 | 33 |