Table 3. Association of clinical and pathological features and B7-H1 expression with recurrence.
| RR (95% CI) | p Value | |
|---|---|---|
| Age at primary surgery (yrs): | ||
| Younger than 5 | 1.0 (referent) | 0.178 |
| 5 or Older | 1.92 (0.74–4.96) | |
| Sex: | ||
| M | 1.0 (referent) | 0.916 |
| F | 1.05 (0.42–2.65) | |
| Clinical stage: | ||
| Low (I or II) | 1.0 (referent) | 0.005 |
| High (III or IV) | 3.94 (1.52–10.16) | |
| Histology: | ||
| FH | 1.0 (referent) | 0.294 |
| AH | 1.95 (0.56–6.80) | |
| Tumor necrosis: | ||
| Absent | 1.0 (referent) | 0.283 |
| Present | 0.51 (0.15–1.75) | |
| Mononuclear cell infiltration: | ||
| Absent | 1.0 (referent) | 0.186 |
| Present | 2.70 (0.62–11.73) | |
| Tumor B7-H1 expression: | ||
| Absent | 1.0 (referent) | 0.057 |
| Present | 2.73 (0.97–7.70) |