Characteristics | LD group (%) | HD group (%) | χ2/t | P |
---|---|---|---|---|
Gender | ||||
Male | 35 (60.3) | 49 (73.1) | 2.307 | 0.129 |
Female | 23 (39.7) | 18 (26.9) | ||
Age | ||||
Mean ± SD | 69.34 ± 8.13 | 68.18 ± 7.53 | 0.832 | 0.407 |
ECOG | ||||
0–1 | 48 (82.8) | 54 (80.6) | 0.097 | 0.756 |
2 | 10 (17.2) | 13 (19.4) | ||
Recurrence pattern | ||||
PR | 35 (60.3) | 32 (47.8) | 1.614 | 0.446 |
LNR | 11 (19.0) | 14 (20.9) | ||
PR + LNR | 12 (20.7) | 21 (31.3) | ||
Initial radiation dose (Gy) | ||||
Mean dose | 58.69 ± 3.10 | 59.22 ± 2.76 | 1.01 | 0.310 |
Time to recurrence (months) | ||||
≤ 24 | 36 (62.1) | 32 (47.8) | 2.57 | 0.109 |
> 24 | 22 (37.9) | 35 (52.2) | ||
Re-radiotherapy technology | ||||
3D-CRT | 25 (43.1) | 34 (50.7) | 0.73 | 0.393 |
IMRT | 33 (56.9) | 33 (49.3) | ||
Chemotherapy | ||||
Yes | 25 (43.1) | 36 (53.7) | 1.405 | 0.236 |
No | 33 (56.9) | 31 (46.3) |