Table 4. Publication bias analysis.
| Outcomes | P value for the Egger’s test | P value for the Begg’s test |
|---|---|---|
| 30-day survival rate | 0.402 | 0.754 |
| 10-month survival rate | 0.546 | 0.754 |
| 20-month survival rate | 0.816 | 0.368 |
| 30-month survival rate | 0.460 | 0.260 |
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