Table 4 Comparison of treatment details between the non-OCC and OCC groups
| Â | Non-OCC group (n = 40) | OCC group (n = 50) | p value |
|---|---|---|---|
Radiation dose | Â | Â | 0.152 |
 Median (range) | 50.4 (50.4–66.6) | 50.4 (50.4–66.6) |  |
Radiation field | Â | Â | 0.032 |
 Bilateral | 34 (85%) | 31 (62%) |  |
 Bilateral + boost | 6 (15%) | 13 (26%) |  |
 Unilateral | 0 (0%) | 5 (10%) |  |
 Unilateral + boost | 0 (0%) | 1 (2%) |  |
Boost irradiation | Â | Â | 0.2 |
 Yes | 6 (15%) | 14 (28%) |  |
 No | 34 (85%) | 36 (72%) |  |
Concurrent systemic chemotherapy | Â | Â | > 0.999 |
 Yes | 30 (75%) | 38 (76%) |  |
 No | 10 (25%) | 12 (24%) |  |
Chemotherapy regimen | Â | Â | < 0.001 |
 CDGP + 5FU | 24 (80%) | 8 (21%) |  |
 CDGP + DTX | 0 (0%) | 6 (16%) |  |
 CDDP | 2 (7%) | 11 (29%) |  |
 CDDP + 5FU | 0 (0%) | 9 (24%) |  |
 CDDP + DTX | 0 (0%) | 1 (3%) |  |
 CBDCA | 0 (0%) | 2 (5%) |  |
 DTX | 4 (13%) | 1 (3%) |  |