Table 2 Results of meta-analysis
Items | No. of studies | HR | 95% CI | P value | I2 | P value of heterogeneity |
|---|---|---|---|---|---|---|
Overall survival | 14 | 1.60 | 1.38–1.86 | <0.001 | 83.7% | <0.001 |
Country | ||||||
China | 9 | 1.52 | 1.30–1.77 | <0.001 | 87.3% | <0.001 |
Non-China | 5 | 1.99 | 1.39–2.84 | <0.001 | 0.0% | <0.001 |
Type of cancer | ||||||
Pancreatic cancer | 11 | 2.00 | 1.43–2.79 | <0.001 | 84.2% | <0.001 |
Non-pancreatic cancer | 2 | 1.30 | `0.78–2.16 | 0.311 | 85.1% | 0.010 |
Mixed | 1 | 3.77 | 1.03–13.75 | 0.044 | - | - |
Source of HR | ||||||
Univariate | 2 | 2.26 | 1.28–3.98 | 0.005 | 0.0% | 0.448 |
Multivariate | 12 | 1.56 | 1.34–1.81 | <0.001 | 84.7% | <0.001 |
Disease-free survival | 4 | 1.44 | 1.00-2.07 | 0.051 | 73.0% | 0.011 |