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Establishment of the Cox proportional risk regression model.
| Variable | β | Hazard Ratio (95% CI) | P |
|---|---|---|---|
| TTF-1 (++/+++) | −1.123 | 0.325 (0.156~0.679) | 0.003 |
| Stage (III/IV) | 1.962 | 7.116 (1.710~29.617) | 0.007 |
| Type (Mutant) | −0.671 | 0.511 (0.303~0.862) | 0.012 |
TTF-1, thyroid transcription factor-1; HR, Hazard Ratio.
