Table 2 Main characteristics of the studies included in the review of respiratory system tumors
Study | Tumor type | Sample size (normal: tumor) | Detection method | P value | TNM (P value) | LNM (P value) | DM (P value) | OS (P value) | DFS (P value) | References |
|---|---|---|---|---|---|---|---|---|---|---|
Cui | Nasopharyngeal carcinoma | 15:15 | qRT-PCR | < 0.001 | / | / | / | 0.0385 | 0.0261 | [54] |
Cui | Lung cancer | 108:108 | qRT-PCR | < 0.05 | 0.003 | < 0.001 | 0.571 | 0.014 | 0.036 | [6] |
Wan | Lung cancer | 105:105 | qRT-PCR | < 0.05 | 0.001 | 0.011 | / | / | / | [42] |
Chen | Lung cancer | 80:80 | qRT-PCR | < 0.0001 | / | / | / | / | / | [59] |
Qi | Lung cancer | 30:30 | qRT-PCR | < 0.05 | / | / | / | / | / | [63] |
Wu | Lung cancer | 31:31 | qRT-PCR | < 0.05 | 0.017 | 0.018 | / | / | / | [69] |
Chen | Lung cancer | 40:40 | qRT-PCR | < 0.05 | 0.01 | 0.0146 | / | / | / | [72] |