Table 1.
Characteristics of studies in this meta-analysis
| Author | Year | Country | Tumor type | Sample size | CCAT2 expression | CCAT2 assay | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| High expression | High with LNM | High with DM | Low expression | Low with LNM | Low with DM | ||||||
| Zheng JF | 2016 | China | PC | 96 | 59 | 10 | 32 | 37 | 5 | 8 | RT-qPCR |
| Chen SF | 2016 | China | SCLC | 112 | 56 | 45 | 14 | 56 | 22 | 0 | RT-qPCR |
| Huang SY | 2016 | China | OC | 109 | 55 | NA | 36 | 54 | NA | 6 | RT-qPCR |
| Wang CY | 2015 | China | GC | 85 | 44 | 28 | 11 | 41 | 8 | 3 | RT-qPCR |
| Chen X | 2015 | China | CSCC | 123 | 62 | 34 | NA | 61 | 11 | NA | RT-qPCR |
| Li JF | 2016 | China | BC1 | 48 | 28 | 1 | NA | 20 | 2 | NA | RT-qPCR |
| Zhang XL | 2015 | China | ESCC | 227 | 114 | 65 | NA | 113 | 48 | NA | RT-qPCR |
| Cai Y | 2015 | China | BC2 | 67 | 25 | NA | NA | 42 | NA | NA | RT-qPCR |
PC prostate cancer, SCLC small cell lung cancer, OC Ovarian cancer, GC gastric cancer, CSCC cervical squamous cell cancer, BC1 bladder cancer, ESCC esophageal squamous cell carcinoma, BC2 breast cancer, qRT-PCR quantitative real-time PCR, LNM lymph node metastasis, DM distant metastasis, NA not available.