Table 2.
Outcome subgroup | No. of patients | No. of studies | HR (95% CI) | P value | Heterogeneity | |
---|---|---|---|---|---|---|
I 2 | P | |||||
OS | 2441 | 11 | 2.22 (1.38-3.57)b | 0.002 | 91.4 | <0.001 |
HR obtain method | ||||||
Reported in the text | 1918 | 7 | 1.72 (1.04-2.85)b | 0.038∗ | 91.4 | <0.001 |
Data extrapolated | 523 | 4 | 3.92 (1.40-10.95)b | 0.009 | 78.8 | 0.003 |
Analysis type | ||||||
Multivariate | 1918 | 7 | 1.72 (1.04-2.85)b | 0.038∗ | 91.4 | <0.001 |
Univariate | 523 | 4 | 3.92 (1.40-10.95)b | 0.009 | 78.8 | 0.003 |
Ethnicity | ||||||
Asian | 1950 | 8 | 1.99 (1.18-3.36)b | 0.009∗ | 96.7 | <0.001 |
Caucasian | 491 | 3 | 2.78 (1.29-5.99)b | 0.010∗ | 81.9 | 0.004 |
DFS | 1462 | 9 | 2.17 (1.84-2.57)a | <0.001 | 23.3 | 0.236 |
HR obtain method | ||||||
Reported in the text | 815 | 5 | 2.23 (1.83-2.72)a | <0.001 | 28.5 | 0.231 |
Data extrapolated | 647 | 4 | 2.05 (1.50-2.80)a | <0.001 | 35.3 | 0.201 |
Analysis type | ||||||
Multivariate | 815 | 5 | 2.23 (1.83-2.72)a | <0.001 | 28.5 | 0.231 |
Univariate | 647 | 4 | 2.05 (1.50-2.80)a | <0.001 | 35.3 | 0.201 |
Ethnicity | ||||||
Asian | 1348 | 7 | 1.95 (1.57-2.42)a | <0.001 | 21.9 | 0.262 |
Caucasian | 294 | 2 | 2.57 (1.97-3.36)a | <0.001 | 0 | 0.652 |
PFS | 1321 | 5 | 2.70 (1.11-6.53)b | 0.028 | 94.8 | <0.001 |
OS: overall survival; DFS: disease-free survival; PFS: progression-free survival; HR: hazard ratio; CI: confidence interval. aFixed effects model. bRandom effects model.