Table IV. Factors predictive of distant recurrence by univariate analysis (M0 only, n = 130).
| Variable | N (%) | 5-y DRFP | Univariate P value |
|---|---|---|---|
| Age | |||
| ≥45 | 37 | 93% | .030 |
| >45 | 93 | 87% | |
| Sex | |||
| Female | 77 | 91% | .066 |
| Male | 53 | 86% | |
| Operation | |||
| Less than total | 11 | 100% | .363 |
| Total thyroid | 119 | 88% | |
| R status | |||
| R0 | 64 | 91% | .410 |
| R1 | 54 | 90% | |
| R2 | 12 | 71% | |
| Neck dissection | |||
| None | 39 | 100% | .167 |
| Central | 23 | 95% | |
| Lateral | 68 | 81% | |
| pT size | |||
| ≤4 cm | 104 | 93% | .013 |
| >4 cm | 25 | 74% | |
| pN status | |||
| N0/NX | 26 | 95% | .364 |
| N1a | 41 | 100% | |
| N1b | 63 | 79% | |
| RAI therapy | |||
| No | 16 | 91% | .699 |
| Yes | 114 | 89% | |
| EBRT | |||
| No | 113 | 89% | .791 |
| Yes | 17 | 88% | |
pN, Pathologic nodal; pT, pathologic tumor.