| Characteristic . | AHR . | 95% CI . | Univariate P . | AHR . | 95% CI . | Multivariate P . |
|---|---|---|---|---|---|---|
| Age | ||||||
| <55 y | 1 | <.0001 | 1 | |||
| ≥55 y | 2.576 | 1.997-3.323 | 1.644 | 1.268-2.133 | <.0001 | |
| Sex | — | — | — | |||
| Male | 1 | |||||
| Female | 1.141 | 0.861-1.510 | .359 | |||
| Histopathology | ||||||
| PTC | 1 | 1 | ||||
| FTC | 2.049 | 1.570-2.675 | <.0001 | 0.753 | 0.595-1.068 | .091 |
| HTC | 3.223 | 1.750-5.934 | 1.395 | 0.753-2.587 | ||
| Surgery | — | — | — | |||
| Total thyroidectomy | 1 | |||||
| Less than total thyroidectomy | 1.172 | 0.907-1.515 | .224 | |||
| Metastases | ||||||
| Lung only | 1 | 1 | ||||
| Bone only | 4.852 | 3.257-7.229 | <.0001 | 2.485 | 1.590-3.882 | <.0001 |
| Multiple organs | 5.531 | 3.657-8.365 | 2.526 | 1.618-3.943 | ||
| Groups | ||||||
| A | 1 | 1 | ||||
| B | 2.371 | 1.662-3.384 | <.001 | 1.150 | 0.795-1.665 | .059 |
| C | 2.558 | 1.826-3.584 | 0.816 | 0.567-1.174 | ||
| Radiotherapy | — | — | — | |||
| No | 1 | |||||
| Yes | 1.215 | 0.932-1.582 | .150 | |||
| Last 131I WBS | ||||||
| Negative | 1 | 1 | ||||
| Positive | 12.098 | 7.381-19.831 | <.0001 | 8.907 | 5.249-15.112 | <.0001 |
| Characteristic . | AHR . | 95% CI . | Univariate P . | AHR . | 95% CI . | Multivariate P . |
|---|---|---|---|---|---|---|
| Age | ||||||
| <55 y | 1 | <.0001 | 1 | |||
| ≥55 y | 2.576 | 1.997-3.323 | 1.644 | 1.268-2.133 | <.0001 | |
| Sex | — | — | — | |||
| Male | 1 | |||||
| Female | 1.141 | 0.861-1.510 | .359 | |||
| Histopathology | ||||||
| PTC | 1 | 1 | ||||
| FTC | 2.049 | 1.570-2.675 | <.0001 | 0.753 | 0.595-1.068 | .091 |
| HTC | 3.223 | 1.750-5.934 | 1.395 | 0.753-2.587 | ||
| Surgery | — | — | — | |||
| Total thyroidectomy | 1 | |||||
| Less than total thyroidectomy | 1.172 | 0.907-1.515 | .224 | |||
| Metastases | ||||||
| Lung only | 1 | 1 | ||||
| Bone only | 4.852 | 3.257-7.229 | <.0001 | 2.485 | 1.590-3.882 | <.0001 |
| Multiple organs | 5.531 | 3.657-8.365 | 2.526 | 1.618-3.943 | ||
| Groups | ||||||
| A | 1 | 1 | ||||
| B | 2.371 | 1.662-3.384 | <.001 | 1.150 | 0.795-1.665 | .059 |
| C | 2.558 | 1.826-3.584 | 0.816 | 0.567-1.174 | ||
| Radiotherapy | — | — | — | |||
| No | 1 | |||||
| Yes | 1.215 | 0.932-1.582 | .150 | |||
| Last 131I WBS | ||||||
| Negative | 1 | 1 | ||||
| Positive | 12.098 | 7.381-19.831 | <.0001 | 8.907 | 5.249-15.112 | <.0001 |
Only those variables with P < .05 in univariate analysis were included in the multivariable analysis. Total numbers are highlighted as bold.
Abbreviations: AHR, adjusted hazard ratio; FTC, follicular thyroid cancer; HTC, Hurtle cell thyroid cancer; PTC, papillary thyroid cancer; WBS, whole body scan.
| Characteristic . | AHR . | 95% CI . | Univariate P . | AHR . | 95% CI . | Multivariate P . |
|---|---|---|---|---|---|---|
| Age | ||||||
| <55 y | 1 | <.0001 | 1 | |||
| ≥55 y | 2.576 | 1.997-3.323 | 1.644 | 1.268-2.133 | <.0001 | |
| Sex | — | — | — | |||
| Male | 1 | |||||
| Female | 1.141 | 0.861-1.510 | .359 | |||
| Histopathology | ||||||
| PTC | 1 | 1 | ||||
| FTC | 2.049 | 1.570-2.675 | <.0001 | 0.753 | 0.595-1.068 | .091 |
| HTC | 3.223 | 1.750-5.934 | 1.395 | 0.753-2.587 | ||
| Surgery | — | — | — | |||
| Total thyroidectomy | 1 | |||||
| Less than total thyroidectomy | 1.172 | 0.907-1.515 | .224 | |||
| Metastases | ||||||
| Lung only | 1 | 1 | ||||
| Bone only | 4.852 | 3.257-7.229 | <.0001 | 2.485 | 1.590-3.882 | <.0001 |
| Multiple organs | 5.531 | 3.657-8.365 | 2.526 | 1.618-3.943 | ||
| Groups | ||||||
| A | 1 | 1 | ||||
| B | 2.371 | 1.662-3.384 | <.001 | 1.150 | 0.795-1.665 | .059 |
| C | 2.558 | 1.826-3.584 | 0.816 | 0.567-1.174 | ||
| Radiotherapy | — | — | — | |||
| No | 1 | |||||
| Yes | 1.215 | 0.932-1.582 | .150 | |||
| Last 131I WBS | ||||||
| Negative | 1 | 1 | ||||
| Positive | 12.098 | 7.381-19.831 | <.0001 | 8.907 | 5.249-15.112 | <.0001 |
| Characteristic . | AHR . | 95% CI . | Univariate P . | AHR . | 95% CI . | Multivariate P . |
|---|---|---|---|---|---|---|
| Age | ||||||
| <55 y | 1 | <.0001 | 1 | |||
| ≥55 y | 2.576 | 1.997-3.323 | 1.644 | 1.268-2.133 | <.0001 | |
| Sex | — | — | — | |||
| Male | 1 | |||||
| Female | 1.141 | 0.861-1.510 | .359 | |||
| Histopathology | ||||||
| PTC | 1 | 1 | ||||
| FTC | 2.049 | 1.570-2.675 | <.0001 | 0.753 | 0.595-1.068 | .091 |
| HTC | 3.223 | 1.750-5.934 | 1.395 | 0.753-2.587 | ||
| Surgery | — | — | — | |||
| Total thyroidectomy | 1 | |||||
| Less than total thyroidectomy | 1.172 | 0.907-1.515 | .224 | |||
| Metastases | ||||||
| Lung only | 1 | 1 | ||||
| Bone only | 4.852 | 3.257-7.229 | <.0001 | 2.485 | 1.590-3.882 | <.0001 |
| Multiple organs | 5.531 | 3.657-8.365 | 2.526 | 1.618-3.943 | ||
| Groups | ||||||
| A | 1 | 1 | ||||
| B | 2.371 | 1.662-3.384 | <.001 | 1.150 | 0.795-1.665 | .059 |
| C | 2.558 | 1.826-3.584 | 0.816 | 0.567-1.174 | ||
| Radiotherapy | — | — | — | |||
| No | 1 | |||||
| Yes | 1.215 | 0.932-1.582 | .150 | |||
| Last 131I WBS | ||||||
| Negative | 1 | 1 | ||||
| Positive | 12.098 | 7.381-19.831 | <.0001 | 8.907 | 5.249-15.112 | <.0001 |
Only those variables with P < .05 in univariate analysis were included in the multivariable analysis. Total numbers are highlighted as bold.
Abbreviations: AHR, adjusted hazard ratio; FTC, follicular thyroid cancer; HTC, Hurtle cell thyroid cancer; PTC, papillary thyroid cancer; WBS, whole body scan.
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