Table 2 Clinical and radiological characteristics of patients with persistent disease and recurrent disease.
Characteristic | Persistent disease | Recurrent disease | P-value | ||||||
|---|---|---|---|---|---|---|---|---|---|
Total (n = 98) | Neck dissected (n = 32) | Neck not dissected (n = 66) | P-value | Total (n = 23) | Neck dissected (n = 13) | Neck not dissected (n = 10) | P-value | ||
Time to reoperation (months) | 25.5 ± 18.4 | 21.1 ± 18.7 | 27.7 ± 18.0 | 0.093 | 54.1 ± 24.1 | 58.9 ± 29.0 | 48.0 ± 15.0 | 0.260 | < 0.001 |
Tumor multiplicity | 62 (63.3) | 14 (43.8) | 48 (72.7) | 0.005 | 16 (69.6) | 7 (53.8) | 9 (90.0) | 0.089 | 0.570 |
Location of disease | 0.013 | 0.046 | 0.019 | ||||||
Central compartment | 6 (6.1) | 5 (15.6) | 1 (1.5) | 5 (21.7) | 5 (38.5) | 0 (0.0) | |||
Ipsilateral compartment | 79 (80.6) | 20 (62.5) | 59 (89.4) | 17 (73.9) | 7 (53.8) | 10 (100.0) | |||
Bilateral compartment | 13 (13.3) | 7 (21.9) | 6 (9.1) | 1 (4.3) | 1 (7.7) | 0 (0.0) | |||
Number of pathologically positive LNs | 3.0 ± 2.8 | 2.1 ± 2.0 | 3.5 ± 3.0 | 0.017 | 2.5 ± 1.6 | 1.9 ± 1.0 | 3.4 ± 1.8 | 0.027 | 0.388 |
