Table 7.
Multivariate logistic retrospective analysis of factors related to unilateral and bilateral tumor incidence in PTC patients.
| Subject | B | S.E. | Wald | p | OR | 95%CI |
|---|---|---|---|---|---|---|
| SSL (μg/L) | ||||||
| Low | - | - | - | - | 1 | - |
| Middle | -0.283 | 0.343 | 0.680 | 0.409 | 0.754 | 0.385 - 1.476 |
| High | -1.139 | 0.335 | 11.586 | 0.001 | 0.320 | 0.166 - 0.617 |
| BMI (kg/m2) | 0.027 | 0.037 | 0.542 | 0.461 | 1.028 | 0.956 - 1.105 |
| SBP (mmHg) | -0.011 | 0.011 | 0.905 | 0.341 | 0.989 | 0.967 - 1.012 |
| DBP (mmHg) | 0.064 | 0.017 | 13.689 | <0.001 | 1.066 | 1.031 - 1.103 |
Serum selenium levels were categorized into three grades: Low: 51.3 - 74.5 μg/L (n = 90), Middle: 74.5 - 85.3 μg/L (n = 90), and High : 85.3 - 175.3 μg/L (n = 90). SSL, serum selenium level; BMI, body mass index; DBP, diastolic blood pressure.