Clinicopathological factors | No. of studies | No. of patients | Effects model | OR (95% CI) | p | Heterogeneity I2 (%) Ph | |
---|---|---|---|---|---|---|---|
Gleason score (≥ 8 vs < 8) | 4 | 6635 | Random | 1.32 (0.88–1.96) | 0.178 | 64.6 | 0.037 |
Lymph node metastasis (yes vs no) | 3 | 6586 | Random | 1.69 (0.69–4.16) | 0.251 | 78.5 | 0.009 |
T stage (≥ 3 vs 1–2) | 4 | 6877 | Random | 1.69 (0.86–3.33) | 0.128 | 77.0 | 0.005 |
Age (years) (≥ 70 vs < 70) | 2 | 305 | Fixed | 1.41 (0.88–2.23) | 0.150 | 35.5 | 0.213 |