Table 4 Type of assessment of risk of bias (RoB) and the certainty of the evidence within each of the 12 included systematic reviews
RoB Assessment of RCT evidence | Evidence Grading (quality of the evidence) | NRSIs included? | RoB Assessment of NRSI evidence | Evidence Grading (quality of the evidence) | Notes | |
|---|---|---|---|---|---|---|
Author/Data | ||||||
Al-Saud (2018) | 2011 Cochrane RoB tool | GRADE | No | n/a | n/a | |
Burgess (2019) | “Cochrane Review quality assessment scale” | None | Yes | NOS | None | No reference for “Cochrane Review quality assessment scale” provided so not clear what was exactly done nor which version was used |
Chmielewska (2017) | 2008 Cochrane RoB tool | None | Yes | NOS | None | |
Dai (2021) | Cochrane RoB tool | None | No | n/a | n/a | |
De Silva (2020) | Cochrane ROB-2 tool | GRADE | Yes | ROBINS-I | GRADE | |
EFSA Panel (2019) | Based on OHAT | Based on OHAT | Yes | Based on OHAT | Based on OHAT | |
Ierodiakonou (2016) | 2008 Cochrane RoB tool (modified) | GRADE | Yes | NICE (modified) | GRADE | Reference for NICE checklist was for STROBE, modifications not explained |
Larson (2017) | SORT | None | Yes | SORT | None | |
Obbagy (2019) | NEL Bias Assessment Tool | NESR Grading Rubric | Yes | NEL Bias Assessment Tool | NESR Grading Rubric | |
Smith (2016) | 2008 Cochrane RoB tool | GRADE | Yes (1 QRCT) | Yes | GRADE | |
Waidyatillake (2018) | “Cochrane Review quality assessment scale” | None | Yes | NOS | None | No reference for “Cochrane Review quality assessment scale” provided so not clear what was exactly done nor which version was used |
Yuan (2020) | 2008 Cochrane RoB tool | None | Yes | NOS | None |