Table 5.

Prognostic Factors of Recurrence by Univariate Analysis in Papillary Thyroid Carcinoma with Nodal Metastasis Not Treated with Radioactive Iodine Therapy

	Overall RFS		Neck RFS		Distant RFS
Characteristic	10 years RFS (%)	p	10 years RFS (%)	p	10 years RFS (%)	p
Age, years		0.06		0.44		0.03
<45	93		95		99
≥45	71		83		88
PTC subtypes		0.003		0.49		0.009
FVPTC	100		100		100
Microcarcinoma	95		95		100
Classic PTC	91		93		98
Tall cell PTC	76		89		88
DFS and solid variant PTC	33		67		67
Extra-thyroid extension		0.06		0.08		0.59
None	97		100		97
Focal	95		95		100
Extensive	79		84		95
Number of metastatic nodes		0.05		0.04		0.93
≤3	94		97		97
>3	86		90		96
Most aggressive PTC subtype in lymph nodea		0.05		0.005		0.66
FVPTC	100		100		100
Classic PTC	90		95		96
Tall cell	81		81		100
Extra-nodal extension		0.05		0.09		0.52
No	93		96		97
Yes	69		76		93

^aOnly classic PTC, tall cell PTC, and follicular variant PTC were included in the survival analysis.