Multivariate Analysis of Potential Predictive Factors for TBR or NR
| Factor (category or categories) | No. of events/no. of cases in category | Odds ratio for recurrence | 95% CI for odds ratio | P |
|---|---|---|---|---|
| TBR | ||||
| Age (per year) | 1.0 | 0.8–1.3 | 0.8 | |
| Sex (male vs. female) | 2/66 | 1.6 | 0.3–8.1 | 0.6 |
| 10/169 | ||||
| Histotype (papillary vs. follicular) | 10/193 | 2.2 | 0.4–11.8 | 0.34 |
| 2/42 | ||||
| Extent of thyroidectomy (less than total vs. total*) | 11/63 | 9.5 | 1.2–78.1 | 0.04 |
| 1/172 | ||||
| Radioiodine therapy (no vs. yes) | 11/61 | 11.0 | 1.3–94.7 | 0.03 |
| 1/174 | ||||
| NR | ||||
| Age (per year) | 0.5 | 0.9–3.4 | 0.98 | |
| Sex (male vs. female) | 5/66 | 1.3 | 0.5–3.9 | 0.6 |
| 18/169 | ||||
| Lymph node metastases (yes or status unknown vs. no) | 22/169 | 2.9 | 0.3–23.6 | 0.3 |
| 1/66 | ||||
| Histologic variant of papillary cancer (classical vs. follicular) | 19/125 | 1.9 | 1.1–3.4 | 0.02 |
| 4/68 | ||||
| Extent of thyroidectomy (less than total vs. total*) | 12/63 | 1.4 | 0.3–1.8 | 0.5 |
| 11/172 | ||||
| Lymph node management (incomplete vs. complete*) | 16/78 | 3.3 | 1.2–8.8 | 0.02 |
| 7/157 | ||||
| Postoperative radioiodine therapy (no vs. yes) | 15/61 | 3.2 | 1.2–7.8 | 0.02 |
| 8/174 | ||||
↵* See Materials and Methods section for detailed explanations of these terms.
CI = confidence interval.
Odds ratios and confidence intervals (CIs) in bold type denote statistically significant values.