Table 2. Characteristics of studies included in this systematic review.
SANRA: Scale for the Assessment of Narrative Review Articles; AMSTAR: Assessment of Multiple Systematic Reviews; AXIS tool: Appraisal Tool for Cross-Sectional Studies
| Author | Publication year | Report type | Quality assessment tool used | Score |
| Li et al. [3] | 2022 | Review article | SANRA | 9 |
| Wan and El-Nezani [18] | 2018 | Review article | SANRA | 9 |
| Li et al. [19] | 2022 | Review article | SANRA | 9 |
| Yu and Schwabe [20] | 2017 | Review article | SANRA | 10 |
| Huang et al. [21] | 2022 | Systematic review and meta-analysis | AMSTAR 2 | 12 |
| Ponziani et al. [22] | 2019 | Cross-sectional study | AXIS tool | 15 |
| Zhang et al. [23] | 2021 | Cross-sectional study | AXIS tool | 14 |
| Ren et al. [24] | 2019 | Cross-sectional study | AXIS tool | 14 |
| Zheng et al. [25] | 2020 | Cross-sectional study | AXIS tool | 15 |
| Yan et al. [26] | 2023 | Cross-sectional study | AXIS tool | 14 |
| Temraz et al. [27] | 2021 | Review article | SANRA | 10 |
| Huang et al. [28] | 2020 | Cross-sectional study | AXIS tool | 14 |
| Piñero et al. [29] | 2019 | Case-control study | Newcastle-Ottawa scale | 7 |
| Sharpton et al. [30] | 2019 | Systematic review and meta-analysis | AMSTAR 2 | 12 |
| Hariri et al. [31] | 2023 | Cohort study | Newcastle-Ottawa scale | 7 |
| Pohl et al. [32] | 2022 | Systematic review | AMSTAR 2 | 12 |
| Wang et al. [33] | 2022 | Cohort study | Newcastle-Ottawa scale | 7 |