Table 4. Univariate and multivariate logistic regression analysis of risk factors of patients with papillary thyroid carcinoma compared to patients with benign thyroid nodules.
| Variable | Univariate | Multivariate | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Wald | OR (95% CI) | P-Value | Wald | OR (95% CI) | P-Value | |||||
| FT4 (ng/dl) | 0.153 | 1.19 (0.501, 2.82) | 0.696 | |||||||
| FT3 (pg/ml) | 1.96 | 0.787 (0.563, 1.10) | 0.161 | |||||||
| TSH (mIu/L) | 30.28 | 1.79 (1.45, 2.20) | <0.001 | 21.74 | 1.79 (1.40, 2.29) | <0.001 | ||||
| Selenium (µg/l) | 81.94 | 0.944 (0.933, 0.956) | <0.001 | 74.16 | 0.945 (0.932, 0.957) | <0.001 | ||||
FT4: Free thyroxin; FT3: Free triiodothyronine; TSH: Thyroid stimulating hormone; OR: Odds ratio; CI: Confidence interval.