Table 6.

Multivariate analysis of variables, including the number of pathological central node metastasis, for central node recurrence-free survival for cN0M0 PTC patients, who underwent total, near total, or subtotal thyroidectomy

Variable	p value	Hazard ratio (95%CI)
Male gender	0.8166	0.88 (0.31–2.55)
Age ≥ 55 years	0.0013	3.21 (1.57–6.49)
Extrathyroid extension (Ex)	0.0009	3.28 (1.63–6.62)
Tumor size
>4.0 cm	0.0031	4.33 (1.64–11.49)
2.1–4.0 cm	0.0212	2.66 (1.16–6.10)
Pathological central node metastasis ≥5	0.0023	2.86 (1.45–5.62)