Variables | SCMs without neck muscles spasm | SCMs with neck muscles spasm | P value |
---|---|---|---|
Group number | 254 | 50 | |
Sex | 0.003 | ||
Male | 199 (78.35%) | 29 (58.00%) | |
Female | 55 (21.65%) | 21 (42.00%) | |
Age (years) | 0.471 | ||
≤ 41 | 131 (51.57%) | 23 (46.00%) | |
> 41 | 123 (48.43%) | 27 (54.00%) | |
T stage | 0.356 | ||
T1–2 | 61 (24.02%) | 9 (18.00%) | |
T3–4 | 193 (75.98%) | 41 (82.00%) | |
N stage | 0.002 | ||
N0–1 | 127 (50.00%) | 13 (26.00%) | |
N2–3 | 127 (50.00%) | 37 (74.00%) | |
Smoking status | 0.799 | ||
Yes | 86 (33.86%) | 16 (32.00%) | |
No | 168 (66.14%) | 34 (68.00%) | |
Drinking status | 0.851 | ||
Yes | 38 (14.96%) | 8 (16.00%) | |
No | 216 (85.04%) | 42 (84.00%) | |
Induction chemotherapy | 0.839 | ||
Yes | 123 (48.43%) | 25 (50.00%) | |
No | 131 (50.57%) | 25 (50.00%) | |
Concurrent chemotherapy | 0.851 | ||
Yes | 216 (85.04%) | 42 (84.00%) | |
No | 38 (14.96%) | 8 16.00%) | |
Neck dissection | 0.324 | ||
Yes | 8 (3.15%) | 3 (6.00%) | |
No | 246 (96.85%) | 47 (94.00%) | |
D mean | 50.54 Gy (38.04 Gy – 58.91 Gy) | 62.05 Gy (61.22 Gy – 62.35 Gy) | < 0.001 |
D min | 2.68 Gy (1.04 Gy – 29.44 Gy) | 35.88 Gy (30.35 Gy – 39.58 Gy) | < 0.001 |
D max | 68.82 Gy (66.24 Gy – 71.46 Gy) | 70.80 Gy (68.58 Gy −72.51 Gy) | 0.048 |
V20a | 84.94% (61.87% – 100%) | 100% (100% – 100%) | < 0.001 |
V25 | 81.70% (59.84% – 100%) | 100% (100% – 100%) | < 0.001 |
V30 | 79.52% (57.88% – 99.99%) | 100% (100% – 100%) | < 0.001 |
V35 | 77.57% (56.23% – 99.76%) | 100% (99.88% – 100%) | < 0.001 |
V40 | 75.57% (54.40% – 98.99%) | 99.89% (99.22% – 100.00%) | < 0.001 |
V45 | 74.00% (52.43% – 96.44%) | 99.07% (97.67% – 99.70%) | < 0.001 |
V50 | 70.87% (47.81% – 90.72%) | 96.32% (93.59% – 98.32%) | < 0.001 |
V55 | 64.00% (41.94% – 78.86%) | 87.74% (84.56% – 91.79%) | < 0.001 |
V60 | 39.02% (23.11% – 52.10%) | 68.33% 64.01% – 72.25%) | < 0.001 |
V65 | 8.16% (0.97% – 20.59%) | 35.01% (23.10% – 41.22%) | < 0.001 |
V70 | 0.00% (0.00% – 0.76%) | 1.66% (0.00% – 13.78%) | < 0.001 |
V75 | 0.00% (0.00% – 0.00%) | 0.00% (0.00% – 0.00%) | 0.010 |
V80 | 0.00% (0.00% – 0.00%) | 0.00% (0.00% – 0.00%) | 0.537 |
D20b | 63.12 Gy (60.59 Gy – 65.28 Gy) | 66.74 Gy (64.93 Gy – 68.01 Gy) | < 0.001 |
D25 | 62.39 Gy (59.74 Gy – 64.31 Gy) | 66.04 Gy (64.30 Gy – 67.35 Gy) | < 0.001 |
D30 | 61.69 Gy (58.95 Gy – 63.39 Gy) | 65.27 Gy (63.61 Gy – 66.61 Gy) | < 0.001 |
D35 | 60.76 Gy (57.74 Gy – 62.53 Gy) | 64.76 Gy (63.05 Gy – 65.92 Gy) | < 0.001 |
D40 | 59.79 Gy (55.88 Gy – 61.70 Gy) | 63.97 Gy (62.68 Gy – 64.85 Gy) | < 0.001 |
D45 | 59.06 Gy (53.84 Gy – 61.01 Gy) | 63.23 Gy (62.31 Gy – 64.05 Gy) | < 0.001 |
D50 | 58.17 Gy (49.85 Gy – 60.38 Gy) | 62.48 Gy (61.59 Gy – 63.14Gy) | < 0.001 |
D55 | 57.52 Gy (38.66 Gy – 59.55 Gy) | 61.75 Gy (61.01 Gy – 62.44 Gy) | < 0.001 |
D60 | 56.26 Gy (27.73 Gy – 58.83 Gy) | 61.10 Gy (60.35 Gy – 61.67 Gy) | < 0.001 |
D65 | 54.85 Gy (16.57 Gy – 58.14 Gy) | 60.22 Gy (59.61 Gy – 60.86 Gy) | < 0.001 |
D70 | 51.52 Gy (9.49 Gy – 57.19 Gy) | 59.80 Gy (58.47 Gy – 57.81 Gy) | < 0.001 |
D75 | 43.68 Gy (5.57 Gy – 56.15 Gy) | 58.42 Gy (57.51 Gy – 59.37 Gy) | < 0.001 |
D80 | 35.34 Gy (3.21 Gy – 54.78 Gy) | 57.21 Gy (56.01 Gy – 58.29 Gy) | < 0.001 |