Table 3 NOS scale for the cohort studies
Study | Selection | Comparability | Outcomes | NOS score |
|---|---|---|---|---|
Dinshaw KA et al. (2005) [25] | 3 | 2 | 2 | 7 |
Yoshida T et al. (2009) [38] | 3 | 2 | 3 | 8 |
Yi O.V. et al. (2009) [39] | 4 | 2 | 2 | 8 |
Lupe K et al. (2011) [40] | 4 | 2 | 3 | 9 |
Adkins FC et al. (2011) [41] | 3 | 2 | 3 | 8 |
Perez CA et al. (2013) [44] | 3 | 2 | 2 | 7 |
cN et al. (2014) [45] | 3 | 2 | 2 | 7 |
Park JS et al. (2015) [46] | 3 | 2 | 3 | 8 |
Sopik V et al. (2015) [47] | 4 | 2 | 3 | 9 |
Nichol AM et al. (2017) [26] | 3 | 2 | 3 | 8 |
Lee BM et al. (2018) [27] | 4 | 2 | 3 | 9 |
Chen SY et al. (2018) [28] | 4 | 2 | 2 | 9 |