Table 5.
Overall survival rates and univariate analysis of patients with NB according to clinicopathologic factors
| Variable | Number of patients | Overall survival rates | Log-rank Test |
|---|---|---|---|
| Gender | |||
| boys | 35 | 68.6% | P = 0.4497 |
| girls | 21 | 57.1% | |
| Age | |||
| ≤ 18 months | 20 | 90% | P = 0.0069 |
| > 18 months | 36 | 50% | |
| Stage | |||
| high | 37 | 50.0% | P = 0.0006 |
| low | 18 | 94.4% | |
| Histology | |||
| favourable | 23 | 95.7% | P < 0.0001 |
| unfavourable | 33 | 42.4% | |
| VEGF expression | |||
| high | 44 | 54.5% | P = 0.0053 |
| low | 12 | 100.0% | |
| Risk group | |||
| high* | 34 | 44.1% | P < 0.0001 |
| low** | 22 | 95.5% |
Abbreviations:*high VEGF expression (score3-7) together with high disease stage (Stage III, IV);
**all others