Table 4.
Factors Predictive of Overall Free Survival in the Whole Group
| Variable (n=984) | Number (%) | 10y Overall Survival | Univariate Analysis p Value | Multivariate Analysis | |
|---|---|---|---|---|---|
| HR (95% CI) | p Value | ||||
| Age | |||||
| <45y | 457 (46%) | 94% | Referent | ||
| >45y | 527 (54%) | 76% | <0.001 | 3.362 (1.925–5.870) | <0.001 |
| Gender | |||||
| Female | 776 (79%) | 93% | 0.079 | Referent | |
| Male | 208 (21%) | 98% | 1.502 (0.902–2.499) | 0.118 | |
| cT Stage | |||||
| T1 | 707 (72%) | 91% | 0.455 | N/A | |
| T2 | 277 (28%) | 94% | |||
| Surgery | |||||
| Lobectomy | 376 (38%) | 93% | 0.987 | N/A | |
| Total Thyroidectomy | 574 (58%) | 91% | |||
| Isthmusectomy | 16 (2%) | 93% | |||
| Subtotal Thyroidectomy | 18 (2%) | 87% | |||
| Pathology | |||||
| Papillary | 891 (91%) | 92% | 0.988 | N/A | |
| Follicular | 52 (5%) | 92% | |||
| Hurthle Cell | 41 (4%) | 95% | |||
| Extension | |||||
| None | 869 (88%) | 93% | 0.129 | Referent | |
| Microscopic | 115 (12%) | 88% | 1.391 (0.714–2.710) | 0.332 | |
| pT Stage | |||||
| T1 | 631 (64%) | 91% | 0.191 | N/A | |
| T2 | 238 (24%) | 95% | |||
| T3 | 115 (12%) | 88% | |||
| RAI | |||||
| No | 733 (74%) | 93% | 0.384 | Referent | |
| Yes | 251 (26%) | 88% | 0.931 (0.524–1.653) | 0.806 | |