Table 3.
Relationship between chemotherapy for initial malignancy and RIM grade, MIB-1 labeling and latency time in 29 patients with RIM1
| Characteristic | No chemotherapy | Chemotherapy | Unavailable | p value2 |
|---|---|---|---|---|
|
| ||||
| Grade (n) | ||||
| WHO I | 5 | 6 | 1 | 0.50 |
| Atypical | 2 | 7 | 0 | |
| Unavailable | 4 | 5 | 0 | |
|
| ||||
| MIB-1 (median) | 7.5% | 8% | 4% | 0.82 |
|
| ||||
| Latency time (years) | 32 | 21 | 27 | 0.03 |
1
Patients who received chemotherapy had a later date of primary diagnosis than those who did not receive chemotherapy.
2
p value describes the comparison of patients with and without chemotherapy.
RIM = radiation-induced meningioma, WHO = World Health Organization.