| Parotid ADC change (Mean ± SD) | Sub mandibular ADC change (Mean ± SD) | χ2 | p-value |
Site Larynx Oropharynx Hypopharynx |
14.64 ± 12.73 14.53 ± 10.21 15.77 ± 4.63 |
15.55 ± 12.34 18.06 ± 11.45 17.25 ± 5.69 | 15.62 | 0.018* |
Sub site Glottic Supraglottic Tongue Post cricoids |
14.32 ± 11.98 15.11 ± 12.36 14.56 ± 10.10 15.77 ± 2.64 |
15.7 ± 13.24 14.44 ± 12.04 18.06 ± 14.12 17.25 ± 5.66 | 12.86 | 0.021* |
Performance 0/1 2 |
12.23 ± 10.62 14.87 ± 11.58 |
13.02 ± 11.42 15.62 ± 12.57 | 6.88 | 0.441 |
Stage II III IV |
11.58 ± 9.33 14.04 ± 10.29 9.18 ± 7.86 |
13.25 ± 10.96 15.02 ± 13.32 10.35 ± 8.76 | 11.21 | 0.054 |
T stage T2 T3 T4 |
10.23 ± 8.69 13.52 ± 11.46 12.36 ± 10.68 |
12.85 ± 9.89 15.21 ± 12.85 12.79 ± 10.56 | 10.00 | 0.042* |
N stage N0 N1 N2 N3 |
12.48 ± 10.36 14.75 ± 12.31 15.29 ± 12.64 11.57 ± 9.82 |
14.36 ± 11.55 15.91 ± 12.89 15.88 ± 9.88 12.24 ± 10.23 | 6.88 | 0.031* |