Table 1.

Relationship between the Ki-67 LI and clinicopathological features

	Total	Ki-67 LI
	number	≤5 %	>5–10%	>10%	p values
Patients, n	390	312	48	30
Gender					0.5308
Female	322	256	39	27
Male	68	56	9	3
Age
Age ≥60 years	104	73	17	14	0.0077
Age <60 years	286	239	31	16
Tumor size
≤4 cm	311	256	36	19	0.0351
>4 cm	79	56	12	11
Extrathyroid
extension
No or minimal	276	231	27	18	0.0167
Significant	114	81	21	12
cN status
cN0 or cN1a	303	249	35	19	0.0818
cN1b	87	63	13	11
M status
M0	379	304	45	30	0.3863
M1	12	8	3	1
pN status
pN0 or pN1a	209	174	27	8	0.0088
pN1b	181	138	21	22
Histological type
Common type	338	291	34	13	0.0000
Aggressive type	52	21	14	17