Table 2.
Outcome of toxicity meta-analysis comparing S-1 versus 5-FU in advanced colorectal cancer.
| Toxicity | Trials | SBT | FBT | Heterogeneity | OR (95% CI) | Model | P value | |
|---|---|---|---|---|---|---|---|---|
| P value | I 2 (%) | |||||||
| Grade 3-4 neutropenia | 3 | 96/291 | 143/284 | 0.73 | 0 | 0.49 [0.35, 0.68] | Fixed | <0.01 |
| Grade 3-4 leucopenia | 10 | 79/734 | 100/726 | 0.28 | 18 | 0.75 [0.55, 1.04] | Fixed | 0.08 |
| Grade 3-4 anemia | 9 | 41/712 | 31/705 | 0.40 | 3 | 1.33 [0.83, 2.15] | Fixed | 0.24 |
| Grade 3-4 thrombocytopenia | 9 | 15/709 | 14/702 | 0.28 | 21 | 1.05 [0.51, 2.15] | Fixed | 0.89 |
| Grade 3-4 diarrhea | 12 | 92/820 | 49/805 | <0.1 | 64 | 1.25 [0.58, 2.69] | Random | 0.57 |
| Grade 3-4 nausea/vomit | 10 | 15/739 | 38/732 | 0.56 | 0 | 0.41 [0.23, 0.72] | Fixed | <0.01 |
| Grade 3-4 stomatitis | 9 | 11/716 | 4/710 | 0.24 | 28 | 2.21 [0.83, 5.88] | Fixed | 0.11 |
| Treatment-related death | 5 | 4/545 | 6/542 | 0.71 | 0 | 0.72 [0.24, 2.19] | Fixed | 0.57 |
Notes: NA: not available; OR: odds ratio; CI: confidence interval; FBT: 5-fluorouracil-based therapy; SBT: S-1-based therapy.