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Table 5 Effects of non-dose parameters on dermatitis grade

From: A scoring system predicting acute radiation dermatitis in patients with head and neck cancer treated with intensity-modulated radiotherapy

  Grade 1 (n = 22) Grade 2 (n = 53) Grade 3 (n = 26) Total
Neoadjuvant chemotherapy
 (−) 17 (28.3%) 34 (56.7%) 9 (15.0%) 60
  (+) 5 (12.2%) 19 (46.3%) 17 (41.5%) 41
Concurrent chemotherapy
 Radiotherapy alone 6 (26.1%) 15 (65.2%) 2 (8.7%) 23
 Platinum 12 (22.6%) 29 (54.7%) 12 (22.6%) 53
 Cetuximab 4 (16.0%) 9 (36.0%) 12 (48.0%) 25
Treatment technique
 IMRT-4X 7 (15.2%) 23 (50.0%) 16 (34.8%) 46
 VMAT-6X 15 (27.3%) 30 (54.5%) 10 (18.2%) 55
Sex
 Male 16 (20.8%) 37 (51.4%) 22 (27.8%) 75
 Female 6 (24.1%) 16 (58.6%) 4 (17.2%) 26
Age (years)
 < 67 10 (18.2%) 32 (58.2%) 13 (23.6%) 55
 67 12 (26.1%) 21 (45.7%) 13 (28.3%) 46
BMI (kg/m2)
 < 18.5 2 (8.0%) 14 (56.0%) 9 (36.0%) 25
 18.5 20 (26.3%) 39 (51.3%) 17 (22.4%) 76
Diabetes
Yes 3 (23.0%) 7 (53.9%) 3 (23.1%) 13
No 19 (22.0%) 46 (52.3%) 23 (26.1%) 88
Hypertension
Yes 7 (23.0%) 18 (60.0%) 5 (16.7%) 30
No 15 (21.0%) 35 (49.3%) 21 (29.6%) 71
Any comorbidity
(Charlson Comorbidity Index> 1)
Yes 1 (10.0%) 5 (50.0%) 4 (40.0%) 10
No 21 (23.0%) 48 (52.8%) 22 (24.2%) 91
Smoking
Concurrent 7 (17.0%) 20 (48.8%) 14 (34.1%) 41
Ex 7 (19.0%) 21 (56.8%) 9 (24.3%) 37
Never 8 (35.0%) 12 (52.2%) 3 (13.0%) 23
  1. Abbreviations: BMI = body mass index