Table 2 Comparison of toxicity and side effects of radiotherapy between the two groups before intervention (n = 114)
General situation | Before the intervention | Z value | P-value | |
|---|---|---|---|---|
Control group (n = 57) | Intervention group (n = 57) | |||
Nasal congestion | −1.382 | 0.167 | ||
 Grade 0 | 23 (40.4) | 19 (33.3) |  |  |
 Grade 1 | 18 (31.6) | 10 (17.5) |  |  |
 Grade 2 | 6 (10.5) | 17 (29.8) |  |  |
 Grade 3 | 10 (17.5) | 11 (19.3) |  |  |
Dry mouth | − 0.137 | 0.891 | ||
 Grade 0 | 2 (3.5) | 1 (1.8) |  |  |
 Grade 1 | 6 (10.5) | 4 (7.0) |  |  |
 Grade 2 | 18 (31.6) | 19 (33.3) |  |  |
 Grade 3 | 26 (45.6) | 32 (56.1) |  |  |
 Grade 4 | 5 (8.8) | 1 (1.8) |  |  |
Tinnitus | −0.804 | 0.421 | ||
 Grade 0 | 29 (50.9) | 23 (40.3) |  |  |
 Grade 1 | 7 (12.3) | 9 (15.8) |  |  |
 Grade 2 | 11 (19.3) | 16 (28.1) |  |  |
 Grade 3 | 10 (17.5) | 9 (15.8) |  |  |
Trismus | −1.531 | 0.126 | ||
 Grade 0 | 45 (79.0) | 51 (89.4) |  |  |
 Grade 1 | 10 (17.5) | 5 (8.8) |  |  |
 Grade 2 | 2 (3.5) | 1 (1.8) |  |  |
Neck fibrosis | −0.540 | 0.590 | ||
 Grade 0 | 46 (80.7) | 48 (84.2) |  |  |
 Grade 1 | 6 (10.5) | 6 (10.5) |  |  |
 Grade 2 | 5 (8.8) | 3 (5.3) |  |  |