Table 3.
Pooled HRs, 95% CIs, and P-values for OS stratified by ethnicity, disease system, and detected sample for overall and subgroup analyses
| Subgroup | Number of studies | OS
|
|
|---|---|---|---|
| pHR (95% CI) | P-values | ||
| Total | 9 | ||
| Ethnic subtotal | |||
| Caucasian | 4 | 1.21 (0.44, 3.34) | 0.72 |
| Asian | 5 | 1.36 (0.89, 2.09) | 0.16 |
| Disease system subtotal | |||
| Blood | 2 | 0.73 (0.28, 1.94) | 0.53 |
| Digestive tract | 2 | 0.57 (0.37, 0.90) | 0.02 |
| Detected sample subtotal | |||
| Tissue | 6 | 1.27 (0.81, 2.01) | 0.3 |
| Serum | 3 | 1.30 (0.45, 3.72) | 0.63 |
Abbreviations: CIs, confidence intervals; HRs, hazard ratios; OS, overall survival; pHR, pooled hazard ratio.