A Prediction Model for Contralateral Central Neck Lymph Node Metastases in Unilateral Papillary Thyroid Cancer

Table 4

Binary logistic regression analysis for con-CLNM in uni-PTC.

Variables	β	OR	95% CI
Male sex	1.029	2.797	1.182–6.617	0.019
With HT	−0.844	0.430	0.211–0.876	0.020
Tumor size ≥8.55 mm	0.826	2.284	0.689–7.570	0.177
Hypoechoic on neck US	0.512	1.668	0.543–5.125	0.372
Microcalcifications on neck US	0.060	1.062	0.242–4.656	0.936
With capsular invasion	0.931	2.538	1.223–5.267	0.012
Present ETE	1.053	2.866	0.758–10.836	0.121
Number of ipsi-CLNM ≥1.5	0.550	1.732	0.580–5.177	0.325
Ratio of ipsi-CLNM ≥0.16	3.280	26.588	7.596–93.069	<0.001
Present ipsi-LLNM	0.789	2.202	1.064–4.557	0.033
Constant	−3.875	0.021	—	<0.001

Note: Variables with statistical significance are shown in bold. Abbreviations: con-CLNM, contralateral central lymph node metastases; ETE, extrathyroid extension; HT, Hashimoto’s thyroiditis; ipsi-CLNM, ipsilateral central lymph node metastasis; ipsi-LLNM, ipsilateral lateral lymph node metastasis; OR, odds ratio; uni-PTC, unilateral papillary thyroid carcinoma; 95% CI, 95% confidence interval; β, regression coefficient.