Table 1.
Characteristics of 131 de novo mNPC with Bone-only metastasis
| Characteristics | RT to bone metastases | p | |
|---|---|---|---|
| No n (%) | Yes n (%) | ||
| Total | 81 (61.8) | 50 (38.2) | |
| Age(y) | 0.270 | ||
| ≤ 50 | 49 (60.5) | 35 (70.0) | |
| > 50 | 32 (39.5) | 15 (30.0) | |
| Sex | 0.941 | ||
| Female | 66 (81.5) | 41 (82.0) | |
| Male | 15 (18.5) | 9 (18.0) | |
| T stage | 0.458 | ||
| T1–2 | 26 (32.1) | 13 (26.0) | |
| T3–4 | 55 (67.9) | 37 (74.0) | |
| N stage | 0.907 | ||
| N0–1 | 13 (16.0) | 9 (18.0) | |
| N2–3 | 68 (84.0) | 41 (82.0) | |
| ECOG score | 1.000 | ||
| 0 | 72 (88.9) | 46 (92.0) | |
| 1 | 9 (11.1) | 4 (8.0) | |
| Chemo cycles | 0.417 | ||
| < 4 | 26 (32.1) | 16 (32.0) | |
| ≥ 4 | 55 (67.9) | 34 (68.0) | |
| No. of bone metastasis | 0.480 | ||
| ≤ 5 | 50 (61.7) | 38 (76.0) | |
| > 5 | 31 (38.3) | 12 (24.0) | |
| IMRTa | 0.419 | ||
| No | 34 (42.0) | 19 (38.0) | |
| Yes | 47 (58.0) | 31 (62.0) | |
ECOG Eastern Cooperative Oncology Group, Chemo Chemotherapy, RT radiotherapy, aRT techniques for nasopharynx and neck