TABLE 2.
Details of study quality evaluation via the Newcastle‐Ottawa Scale
| Study | Adequate definition of cases | Representativeness of cases | Selection of controls | Definition of controls | Control for age and sex | Control for other confounders | Exposure ascertainment | Same methods for events ascertainment | Non‐response rates | Total |
|---|---|---|---|---|---|---|---|---|---|---|
| Vaz Fragoso et al. (2009) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 9 |
| Ensrud et al. (2009) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 9 |
| Devkota et al. (2017) | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 7 |
| Moreno‐Tamayo et al. (2017) | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 7 |
| Zhao et al. (2019) | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 8 |
| Pacholek et al. (2020) | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 8 |
| Xie et al. (2021) | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 8 |
| Liu et al. (2021) | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 7 |
| Moreno‐ Tamayo et al. (2021) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 9 |
| Tang et al. (2021) | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 8 |
| Cavusoglu et al. (2021) | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 8 |
| Fan et al. (2022) | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 8 |