Table 1.

Results of univariate analysis.

Influencing Factors		Number of patients	χ2	P
Age	≥45 years old	124	4.436	0.035
	<45 years old	94
Gender	Male	64	0.024	0.878
	Female	154
Pathological types	Papillary cancer	187	2.956	0.086
	Follicular cancer	31
Operation methods	Total or subtotal thyroidectomy	94	2.589	0.108
	Total thyroidectomy and lymphadenectomy	124
Distant metastasis	Yes	40	30.574	0.000
	No	178
Number of lymph nodes	>1	116	4.756	0.029
	≤1	102
Size of lymph node	≥2 cm	53	9.387	0.002
	<2 cm	165
HTG	≥5 μg/L	157	54.497	0.000
	<5 μg/L	61
Condition of thyroid remnants ablation with 131I	Total ablation	177	12.501	0.000
	Subtotal ablation	41