Table 3. Multivariate Cox regression analysis of overall survival in papillary thyroid cancer patients.
| Characteristics | HR | 95% CI-l | 95% CI-u | P-value |
| Age | 1.134 | 1.041 | 1.235 | 0.004 |
| Gender | 0.087 | 0.000 | 74.469 | 0.479 |
| Cancer status | 1.961 | 0.000 | 3038836.204 | 0.926 |
| Stage 2 | 0.000 | 0.000 | 1.218E+233 | 0.962 |
| Stage 3 | 0.001 | 0.000 | 10242.999 | 0.395 |
| Stage 4 | 0.000 | 0.000 | 2.962E+28 | 0.825 |
| F12 | 39.477 | 1.305 | 1194.594 | 0.035 |
Abbreviations: HR, hazard ratio; 95% CI-l, 95% confidence interval-lower; 95% CI-u, 95% confidence interval-upper.