Table 2.
Subgroup analysis for overall survival in colorectal cancer.
| Number of Subset | Fixed Effect (95% CI) |
Heterogeneity Test (p-Value) |
Random Effect (95% CI) |
Egger’s Test (p-Value) |
|
|---|---|---|---|---|---|
| Overall | 9 | 1.535 (1.509, 1.562) | 0.072 | 1.617 (1.393, 1.877) | 0.093 |
| Tumor stage | |||||
| Stage III | 5 | 1.536 (1.334, 1.769) | 0.098 | 1.730 (1.266, 2.362) | 0.108 |
| High mLNR criteria | |||||
| mLNR < 0.2 | 5 | 1.534 (1.507, 1.561) | 0.294 | 1.521 (1.394, 1.661) | 0.601 |
| mLNR ≤ 0.2 | 6 | 1.534 (1.508, 1.561) | 0.084 | 1.557 (1.343, 1.805) | 0.294 |
| mLNR ≥ 0.2 | 3 | 2.770 (1.765, 4.347) | 0.433 | 2.770 (1.765, 4.347) | 0.398 |
| Colon | 2 | 2.412 (1.463, 3.977) | 0.741 | 2.412 (1.463, 3.977) | NA |
| Rectum | 1 | 5.040 (1.780, 14.270) | 1.000 | 5.040 (1.780, 14.270) | NA |
CI, confidence interval; mLNR, metastatic lymph node ratio; NA, not applicable. Colon cancer represent mLNR > 0.2, and rectal cancer present mLNR = 0.2, respectively.