Table 1. Analysis of patient survival estimated by Cox model. -2 log Likelihood= 135,603; Chi Square= 149,176; Df =10; Ph=0,000; p<0,01, Legend: AGES- Age, Grade, Extent, Size, TT- Total thyroidectomy, MRND- Modified radical neck dissection, Lnn – lymph node.
| Factors | Gradtion factors | B | SE | Wald | Df | pHo | R | Exp (B) |
|---|---|---|---|---|---|---|---|---|
| Age of petients | < 45 years | 0,673 | 0,512 | 3,680 | 1 | 0,782 | -1,274 | 0,971 |
| ≥ 45 years. | -0.840 | 0,416 | 4,070 | 1 | 0,044 | -0,103 | 0,432 | |
| Gender of patients | Male | 0,299 | 0,267 | 1,254 | 1 | 0,263 | 0,000 | 1,348 |
| Female | 0,381 | 0,143 | 1,421 | 1 | 0,257 | 0,078 | 1,0 | |
| AGES p.s. | ≤ 3,99 | 0,237 | 0,353 | 2,278 | 1 | 0,250 | 0,071 | 1,512 |
| > 4 | -0,360 | 0,456 | 0,624 | 1 | 0,430 | 0,000 | 0,697 | |
| Tumor size | ≤ 40 mm | -0,198 | 0,292 | 0,460 | 1 | 0,498 | 0,000 | 0,821 |
| > 40 mm | 0,3858 | 0,330 | 1.434 | 1 | 0,317 | 0,073 | 1,621 | |
| Metastases in lnn | No | 0,347 | 0,286 | 2,414 | 1 | 0,158 | 0,041 | 1,789 |
| Yes | -0,428 | 1,332 | 0,103 | 1 | 0,748 | 0,000 | 0,625 | |
| Distant metastases | No | 0,459 | 0,231 | 0,412 | 1 | 0,569 | 0,982 | 1,276 |
| Yes | 0,948 | 0,373 | 6,749 | 1 | 0,0011 | -0,151 | 0,387 | |
| Total surgery | TT | / | / | 0,544 | 2 | 0,762 | 0,000 | / |
| TT+MRND | 0,240 | 1,779 | 0,018 | 1 | 0,893 | 0,000 | 1,271 |