Table 1 Characteristics of included studies
Study | Year | Country | Study period | Detection method | case | control | language | NOS |
|---|---|---|---|---|---|---|---|---|
Azuma | 2020 | Japan | 2008–2013 | ELISA | 555 | 103 | English | 6 |
Boorjian | 2008 | America | 1990–1994 | IHC | 314 | 146 | English | 6 |
Li | 2017 | China | - | IHC | 45 | 45 | English | 8 |
Mahmoud | 2022 | America | 1985–2019 | IHC | 81 | - | English | 8 |
Xu | 2016 | China | 2008–2010 | IHC | 76 | 76 | Chinese | 7 |
Xu | 2018 | China | 2005–2006 | IHC | 115 | - | English | 7 |
Xu’ | 2018 | China | 2004–2005 | IHC | 134 | - | English | 7 |
Xylinas | 2014 | America | 1988–2003 | IHC | 302 | 50 | English | 8 |