Table 1 Newcastle–Ottawa Quality Assessment Scale (NOS)
Study | Score | Total | ||
|---|---|---|---|---|
Selection | Comparability | Exposure | ||
Li et al. 2019 [10] | 3 | 2 | 3 | 8/9 |
Monteith et al. 2015 [11] | 4 | 2 | 3 | 9/9 |
Androulakis et al. 2016 [12] | 4 | 2 | 3 | 9/9 |
Lantz et al. 2017 [13] | 3 | 1 | 3 | 7/9 |
Sumehlathi et al. 2021 [14] | 2 | 2 | 2 | 6/9 |
Kurth et al. 2006 [15] | 2 | 1 | 3 | 6/9 |
Kurth et al. 2009 [16] | 3 | 2 | 3 | 8/9 |
Kurth et al. 2007 [17] | 3 | 2 | 2 | 7/9 |
Kurth et al. 2005 [18] | 3 | 2 | 3 | 8/9 |
Stang et al. 2005 [19] | 4 | 1 | 3 | 8/9 |
Lee et al. 2019 [20] | 4 | 2 | 3 | 9/9 |
Tsai et al. 2016 [21] | 3 | 2 | 2 | 7/9 |