Table 2. Clinical and pathological features by tumor B7-H1 expression.
| No. Tumor B7-H1 Expression (%) | |||
|---|---|---|---|
| Neg | Pos | p Value | |
| Age at primary surgery (yrs): | |||
| Younger than 5 | 50 (71) | 8 (73) | 1.00 |
| 5 or Older | 20 (29) | 3 (27) | |
| Sex: | |||
| M | 36 (51) | 6 (55) | 0.848 |
| F | 34 (49) | 5 (45) | |
| Clinical stage: | |||
| I | 24 (34) | 2 (18) | |
| II | 20 (29) | 3 (27) | |
| III | 10 (14) | 1 (9) | 0.329 |
| IV | 11 (16) | 2 (18) | |
| V | 5 (7) | 3 (27) | |
| Histology: | |||
| FH | 64 (91) | 7 (64) | 0.026 |
| AH | 6 (9) | 4 (36) | |
| Tumor necrosis: | |||
| Absent | 54 (77) | 6 (55) | 0.142 |
| Present | 16 (23) | 5 (45) | |
| Mononuclear cell infiltration: | |||
| Absent | 19 (27) | 1 (9) | 0.277 |
| Present | 51 (73) | 10 (91) | |