Table 1.
General characteristics of included systematic reviews and meta-analyses.
| Author/year | Biomarkers studied | Journal | Country | N | Type of included studies | Patient enrollment |
|---|---|---|---|---|---|---|
| Cai et al., 2020 (19) | LMR | Medicine | China | 9 | Retrospective | 2,809 |
| Yin et al., 2019 (20) | NLR | Medicine | China | 10 | Retrospective | 2,919 |
| Gong et al., 2019 (8) | LMR | J Ovarian Res | China | 8 | Retrospective | 2,259 |
| Gao et al., 2019 (21) | LMR | Cancer Manag Res | China | 12 | Retrospective | 3,346 |
| Jiang et al., 2019 (22) | PLR | Arch Gynecol Obstet | China | 10 | Retrospective | 2,490 |
| Lu et al., 2019 (11) | LMR | Medicine | China | 7 | Retrospective | 2,343 |
| Tian et al., 2018 (13) | PLR | Eur J Clin Invest | China | 11 | Retrospective | 3,574 |
| Xu et al., 2018 (23) | PLR | Transl Cancer Res | China | 8 | Retrospective | 1,636 |
| Zhao et al., 2018 (24) | NLR and PLR | Arch Gynecol Obstet | China | 13 | Retrospective | 3,467 |
| Chen et al., 2018 (25) | NLR | Technol Cancer Res Treat | China | 12 | Retrospective | 4,064 |
| Zhu et al., 2018 (14) | NLR and PLR | BMC Cancer | China | 10 | Retrospective | 2,919 |
| Chen et al., 2017 (26) | NLR | Biomed Res Int | China | 11 | Retrospective | 2,892 |
| Ma et al., 2017 (27) | PLR | Climacteric | China | 12 | Retrospective | 2,340 |
| Huang et al., 2017 (28) | NLR | Cell Physiol Biochem | China | 12 | Retrospective | 3,854 |
| Yang et al., 2017 (29) | NLR | Oncotarget | China | 12 | Retrospective | 3,154 |
| Ethier et al., 2017 (10) | NLR | Gynecol Oncol | Canada | 12 | Retrospective | 3,376 |
| Zhou et al., 2017 (30) | NLR | Oncotarget | China | 16 | Retrospective | 4,910 |
LMR, lymphocyte-to-monocyte ratio; NLR, neutrophil-to-lymphocyte ratio; N, number of included studies; PLR, platelet-to-lymphocyte ratio.