Table 4.
Categories | Studies | Patients | OR (95% CI) | I2% | Ph | P |
---|---|---|---|---|---|---|
Age (≥65 vs <65) | 9 | 928 | 1.38 (1.00, 1.91) | 0.00% | 0.483 | 0.05 |
Gender (Male vs Female) | 11 | 1304 | 1.08 (0.82, 1.43) | 0.00% | 0.996 | 0.562 |
Tumor stage (III/IV vs I/II) | 6 | 941 | 1.82 (1.30, 2.56) | 36.90% | 0.161 | 0.001 |
Tumor invasion (T3/T4 vs T1/T2) | 5 | 603 | 2.01 (1.27, 3.15) | 39.90% | 0.155 | 0.003 |
Histological grade (Moderate/Poor vs Well) | 9 | 1048 | 1.22 (0.88, 1.68) | 0.00% | 0.731 | 0.236 |
Lymph node metastasis (Positive vs Negative) | 9 | 991 | 1.92 (1.36, 2.69) | 3.50% | 0.405 | <0.001 |
OR, odds ratio; 95% CI, 95% confidence interval; Ph: PHeterogeneity.