No. | First author, year | Study period | Study design | Risk factors | Protective factors | Quality score |
---|---|---|---|---|---|---|
1 | Chen, 2010 [57] | 2007.10.1-2008.10.31 | Case–control | 2, 4 | 1 | 7 |
2 | Chen, 2017 [54] | 2012.10-2013.8 | Cross-sectional | 1, 14 | – | 7 |
3 | Cui, 2017 [30] | 2013–2015 | Case–control | 1 ,2 ,13 | – | 7 |
4 | Fan, 2018 [58] | 2015.9-2016.8 | Case–control | 1, 2, 3, 5, 6, 9, 14 | – | 7 |
5 | Fang, 2020 [59] | 2017.1-2019.10 | Cohort | 4 ,7, 10, 11, 13, 14 | 1 | 8 |
6 | He, 2019 [60] | 2007.1.31-2012.12.31 | Cross-sectional | 5, 7, 8, 12 | – | 8 |
7 | Jiang, 2021 [61] | 2014.1-2019.12 | Cross-sectional | 1, 2, 6, 12 | 1 | 7 |
8 | Kou, 2019 [62] | 2012.12-2018.3 | Case–control | 2, 3, 4, 10 | 1 | 7 |
9 | Li, 2014 [63] | 2008–2012 | Cross-sectional | 1, 2, 7, 8, 9 | – | 7 |
10 | Li, 2015 [35] | 2012–2014 | Cross-sectional | 1, 5 | – | 8 |
11 | Lv, 2019 [37] | 2011.1-2017.12 | Case–control | 1, 3, 9 | – | 6 |
12 | Meng, 2017 [64] | 2013.1-2013.12 | Cross-sectional | 1, 5, 6 | – | 7 |
13 | Nie, 2018 [56] | 2004–2015 | Case–control | 1, 5, 7, 11 | – | 7 |
14 | Wang, 2007 [65] | 2005.3-2005.8 | Cross-sectional | 8 | – | 7 |
15 | Xu, 2016 [45] | 2002.12.16-2012.6.30 | Cross-sectional | 6 | – | 8 |
16 | Xu, 2020 [66] | 2015.1-2019.11 | Cross-sectional | 2, 3, 4 | 1 | 7 |
17 | Zhang, 2010 [67] | 2006.8-2008.3 | Cross-sectional | 10 | – | 9 |
18 | Zhou, 2015 [68] | 2010.1-2015.1 | Case–control | 2, 4 | 1 | 6 |
19 | Zhang, 2022 [69] | 2010.1-2020.12 | Case–control | 1, 12 | 1 | 8 |