| Heterogeneity | |||||
---|---|---|---|---|---|---|
Clinicopathological features | Nuber of studies | Nuber of patients | Pooled OR(95% CI) | P value | I2(%) | P value |
Performance status (0–1 vs.2-5) | 7 | 643 | 1.082(0.654-1.793) | 0.758 | 31.7 | 0.186 |
Elevated LDH (normal vs. elevated) | 10 | 884 | 0.914(0.673-1.241) | 0.564 | 36.6 | 0.115 |
IPI score (0–2 vs.3-5) | 7 | 611 | 0.963(0.667-1.39) | 0.84 | 0 | 0.53 |
Tumor stage (I-II vs. III-IV) | 9 | 845 | 1.089(0.79-1.501) | 0.604 | 37.4 | 0.119 |
B symptom (no vs. yes) | 10 | 944 | 0.851(0.557-1.3) | 0.455 | 45 | 0.059 |
Extranodal site (no vs. yes) | 9 | 758 | 1.017(0.674-1.534) | 0.937 | 20.7 | 0.259 |