Table III. Factors predictive of locoregional recurrence by univariate analysis (R0 and R1 only, n = 133).
| Variable | N (%) | 5-y LRRFP | Univariate P value |
|---|---|---|---|
| Age | |||
| <45 | 38 | 94% | .019 |
| ≥45 | 95 | 82% | |
| Sex | |||
| Female | 77 | 86% | .590 |
| Male | 56 | 86% | |
| Operation | |||
| Less than total | 10 | 86% | .560 |
| Total thyroid | 123 | 86% | |
| R status | |||
| R0 | 70 | 86% | .593 |
| R1 | 63 | 86% | |
| Neck dissection | |||
| None | 44 | 87% | .530 |
| Central | 22 | 72% | |
| Lateral | 67 | 89% | |
| pT size | |||
| ≤4 cm | 101 | 85% | .984 |
| >4 cm | 32 | 87% | |
| pN status | |||
| N0/NX | 29 | 79% | .140 |
| N1a | 40 | 75% | |
| N1b | 64 | 94% | |
| M status | |||
| M0 | 118 | 86% | .713 |
| M1 | 15 | 81% | |
| RAI therapy | |||
| No | 14 | 76% | .689 |
| Yes | 119 | 87% | |
| EBRT | |||
| No | 119 | 84% | .227 |
| Yes | 14 | 100% | |
pN, Pathologic nodal; pT, pathologic tumor.