Table 2.
Analysis for risk factors of central lymph node metastasis of the patients with papillary thyroid cancer measuring ≤1 cm
| Univariate analysis | Multivariate analysis | |||||
|---|---|---|---|---|---|---|
| Odd ratio | P value | 95% CI | Odd ratio | P value | 95% CI | |
| Sex (male) | 0.719 | 0.425 | 0.37 to 1.41 | |||
| Age ≥ 45 years | 0.378 | 0.057 | 0.40 to 1.00 | |||
| Size > 0.5 cm | 2.084 | 0.006 | 1.23 to 3.52 | 1.967 | 0.015 | 1.14 to 3.39 |
| Mutifocality | 2.554 | <0.001 | 1.58 to 4.13 | 2.269 | 0.001 | 1.39 to 3.70 |
| Extrathyroidal extension | 1.908 | 0.006 | 1.20 to 3.04 | 1.699 | 0.030 | 1.05 to 2.74 |
| Thyroiditis | 1.143 | 0.696 | 0.58 to 2.24 | |||
| Preoperative TSH (continuous variable) | 0.917 | 0.307 | 0.78 to 1.08 | |||
A multivariate analysis was set by using all of the predictors with p values under 0.05 in univariate analysis.
TSH, thyroid stimulating hormone; CI, confidence interval.