Table 2.
Quality assessment of studies included for meta-analysis
| Quality assessment of studies (cohort) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Selection | Comparability | Outcome | Total Stars | |||||||
| Studies | 1 | 2 | 3 | 4 | 1 A | 1B | 1 | 2 | 3 | |
| Chang et al. | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | 9 |
| Gao et al. | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | 9 |
| Hashimoto et al. | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | 9 |
| Heo et al. | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | 9 |
| Kwon et al. | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | 9 |
| Liang et al. | Yes | Yes | Yes | No | Yes | Yes | Yes | Yes | Yes | 8 |
| Mikolasevic et al. | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | 9 |
| Mori et al. | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | 9 |
| Önnerhag et al. | Yes | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes | 8 |
| Saito et al. | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | 9 |
| Seo et al. | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | 9 |
| Sinn et al. | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | 9 |
| Tanaka et al. | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | 9 |
| Targher et al. (2008) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | 9 |
| Targher et al. (2014) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | 9 |
| Wei et al. (2023) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | 9 |
| Wei et al. (2023 – New) | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | 9 |
| Wilechansky et al. | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | 9 |
| Zhang et al. | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | 9 |
| Zuo et al. | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | No | 8 |