Table 2 Frequency and SAD of the largest node in patients with unilateral and bilateral nodes
Nodal groups | Number of patients with unilateral nodes | Number of patients with bilateral nodes | SAD of the largest node | ||
|---|---|---|---|---|---|
Unilateral* | Bilateral* | P-value | |||
Parotid | 81 (28.0%) | 134 (46.4%) | 4.1 ± 1.0 | 4.6 ± 0.9 | < 0.01 |
Submandibular | 57 (19.7%) | 204 (70.6%) | 4.7 ± 1.2 | 5.7 ± 1.4 | < 0.01 |
Occipital | 58 (20.1%) | 22 (7.6%) | 3.6 ± 0.9 | 4.1 ± 1.0 | 0.048 |
Retroauricular | 8 (2.8%) | 0 (0%) | 3.8 ± 0.7 | - | - |
Retropharyngeal | 59 (20.4%) | 83 (28.7%) | 3.5 ± 0.9 | 4.2 ± 1.3 | < 0.01 |
Upper internal jugular | |||||
Jugulodigastric | 20 (6.9%) | 264 (91.3%) | 6.1 ± 1.9 | 7.5 ± 1.9 | < 0.01 |
Level IIa | 79 (27.3%) | 157 (54.3%) | 4.2 ± 1.1 | 5.3 ± 1.6 | < 0.01 |
Level IIb | 56 (19.4%) | 173 (59.8%) | 3.7 ± 1.1 | 4.5 ± 1.1 | < 0.01 |