Table 5.
The summary results of Risk of bias assessment as per JBI critical appraisal checklist.
| No | Authors | Country | Study Design | Sample Size (n) | Quality Assessment (%) | Risk of Bias Rating |
|---|---|---|---|---|---|---|
| 1 | Machado et al. [42] | Brazil | Retrospective Case control | 1588 | 90.0 | LOW |
| 2 | Zhang et al. [43] | China | Retrospective Case control | 171 | 90.0 | LOW |
| 3 | Alam et al. [44] | Saudi Arabia | Retrospective Case control |
123 | 80.0 | LOW |
| 4 | Alam and Alfawzan [19] | Saudi Arabia | Retrospective Case control |
123 | 80.0 | LOW |
| 5 | Wang et al. [45] | China | Retrospective Case control |
144 | 60.0 | MODERATE |
| 6 | Golabbakhsh et al. [46] | Iran | Retrospective Case-control |
30 | 80.0 | LOW |
| 7 | Wang et al. [47] | China | Retrospective Case control |
110 | 80.0 | LOW |
| 8 | Orozco-Arroyave et al. [48] | South America | Retrospective Case control |
238 | 80.0 | LOW |
| 9 | Orozco-Arroyave et al. [40] | South America | Retrospective Case control |
202 | 90.0 | LOW |
| 10 | Mathad et al. [41] | South America | Retrospective Case control |
326 | 50.0 | HIGH |
| 11 | Li et al. [49] | China | Retrospective | 2568 | 50.0 | HIGH |
| 12 | Shafi et al. [50] | Pakistan | Prospective | 1000 | 70.0 | LOW |