Table 4. Analysis of publication bias among included studies.
| Study(n) | P value of Egger’s test | P value of Begg’s test | ||
|---|---|---|---|---|
| Pooled analysis | Overall | 22 | 0.024 | 0.032 |
| EC | 3 | 0.259 | 1.000 | |
| GC | 12 | 0.141 | 0.244 | |
| CRC | 9 | 0.040 | 0.005 | |
|
T stage (T3+T4 vs. T1+T2) |
Overall | 9 | 0.992 | 0.251 |
| EC | 3 | 0.007 | 1.000 | |
| GC | 5 | 0.968 | 1.000 | |
|
N stage (positive vs. negative) |
Overall | 13 | 0.806 | 0.373 |
| EC | 3 | 0.233 | 1.000 | |
| GC | 9 | 0.191 | 1.000 | |
|
Metastasis (M1 vs. M0) |
Overall | 6 | 0.730 | 0.707 |
| GC | 4 | 0.863 | 0.734 | |
| CRC | 2 | - | 1.000 | |
|
Differentiation (G3 vs. G1+G2) |
Overall | 9 | 0.723 | 1.000 |
| EC | 2 | - | 1.000 | |
| GC | 6 | 0.823 | 1.000 | |
| CRC | 2 | - | 1.000 | |
|
Age (>60 vs. <60) |
Overall | 8 | 0.491 | 0.446 |
|
Gender (Male vs. Female) |
Overall | 14 | 0.993 | 0.661 |
|
Lauren Classification (intestinal vs. diffuse) |
GC | 5 | 0.618 | 0.462 |