Table 3.
Quality assessment of the included studies using the Newcastle‒Ottawa Scale for cohort studies
| Selection 1 (a/b=1, c/d=0) | Selection 2 (a=1, b/c=0) | Selection 3 (a/b=1, c/d=0) | Selection 4 (a=1) | Comparability 1 (a=1, b=1) | Outcome 1 (a/b=1) | Outcome 2 (a=1) | Outcome 3 (a/b=1) | Score | |
|---|---|---|---|---|---|---|---|---|---|
| Martinez-et al., 2012 | c | a | a | a | a | b | a | a | 7 |
| Berggren et al., 2012 | c | a | a | a | a | b | a | c | 6 |
| Gindes et al., 2013 | c | a | a | a | a | b | a | a | 7 |
| Loozen et al., 2015 | c | a | a | a | a | b | a | a | 7 |
| Yuki et al., 2015 | c | a | a | a | a | b | a | b | 7 |
| Venezia et al., 2016 | c | a | a | a | a | b | b | c | 5 |
| Lakshmy et al., 2017 | c | a | a | a | a | b | a | c | 6 |
| Faure et al. | c | a | a | a | a | b | a | a | 7 |
| Ji et al., 2021 | c | a | a | a | a | b | a | b | 7 |
| Deng et al., 2021 | c | a | a | a | a | b | a | a | 7 |