Table 3.
GRADE quality rating for clinical studies
| Study (author/year) | (a) Risk of bias | (b) Indirectness | (c) Heterogenity | (d) Lack of precision | (e) Publication bias | GRADE quality rating |
|---|---|---|---|---|---|---|
| Eskow et al. (2017) [10] | Low | No | No | No data given | No | + |
| Ormianer et al. (2018) [11] | Moderate | No | No | No | No | + |
| Castellanos-Cosano et al. (2019) [12] | Low | No | No | No data given | No | ++ |
| Alrabiah et al. (2019) [13] | Low | No | No | No data given | No | ++ |
| Sghaireen et al. (2020) [14] | Low | No | No | No | No | +++ |
| Papantonopoulos et al. (2017) [15] | Low | No | No | No data given | No | ++ |
| Atarchi et al. (2020) [16] | Moderate | No | No | No | No | + |
| Alasqah et al. (2018) [17] | Low | No | No | No data given | No | ++ |
| Singh et al. (2020) [18] | High | No | No | No data given | No | + |
| Al Zahrani et al. (2019) [19] | Low | No | No | No data given | No | ++ |
| Erdogan et al. (2015) [20] | Low | No | No | No data given | No | ++ |
| Oztel et al. (2017) [21] | Moderate | No | Yes | No | Possible | + |
| Gomez-Moreno et al. (2015) [22] | Low | No | Nein | No data given | No | ++ |
| Dogan et al. (2015) [23] | Low | No | Nein | No data given | No | ++ |
| Okamoto et al. (2018) [24] | Low | No | No | No | No | +++ |
| Al Amri et al. (2015) [25] | Low | No | No | No | No | +++ |
| de Araujo Nobre et al. (2016) | Low | No | No | No | No | + |
| Al Amri et al. (2017) [26] | Low | No | No | No data given | No | ++ |
| Al Amri et al. (2017) [27] | Low | No | No | No data given | No | ++ |
| Soh et al. (2020) [28] | Moderate | No | No | No data given | No | + |
| Mohanty et al. (2018) [29] | High | No | No | No data given | No | + |
| Aguilar-Salvatierra et al. (2016) [30] | Low | No | No | No data given | No | ++ |
| Rekawek et al. (2021) [31] | Low | No | No | No | No | +++ |
| Jagadeesh et al. (2020) [32] | High | No | No | No data given | Possible | + |
| Kandasamy et al. (2018) [33] | Moderate | No | No | No data given | Possible | + |
| Pedro et al. (2017) [34] | Moderate | No | No | No data given | No | + |
| Yadav et al. (2018) [35] | Low | No | No | No data given | No | ++++ |
| Khan et al. (2016) [36] | High | No | No | No data given | No | + |
| French et al. (2021) [37] | Moderate | No | No | No | No | + |
| Alberti et al. (2020) [38] | Low | No | No | No | No | +++ |
| Krebs et al. (2019) [39] | Low | No | No | No | No | + |
| Dalago et al. (2017) [40] | low | no | no | No | No | + |
| De Araújo Nobre et al. (2017) [41] | Moderate | No | No | No | No | + |
| Mayta-Tovalino et al. (2019) [42] | Moderate | No | No | No | No | + |
| Kissa et al. (2020) [43] | Low | No | No | No | No | + |
| Krennmair et al. (2018) [44] | Low | No | No | No | No | + |
| Al-Sowygh et al. (2018) [45] | Low | No | No | No data given | No | ++ |
| Corbella et al. (2020) [46] | Low | No | No | No | No | + |
| Al Amri et al. (2017) [47] | Low | No | No | No data given | No | ++ |
| Weinstein et al. (2020) [48] | Low | No | No | No | No | + |