Table 1. Association of NEAT1 expression with clinical features.

Variable	n	NEAT1 expression		P
		Low	High
Total	239	129	110
Sex				0.771*
Male	141	75	66
Female	98	54	44
Age at diagnosis				0.736*
≤60	144	79	65
>60	95	50	45
Tumor site
Left colon	68	36	32	0.389*
Right colon	78	38	40
Rectum	93	55	38
Tumor size				0.117*
≤3.0 cm	82	50	32
>3.0 cm	157	79	78
Differentiation status				0.011*
Well	41	31	10
Moderately	103	62	41
Poor	95	46	49
Depth of invasion				0.040*
T1+ T2	92	57	35
T3+ T4	147	71	76
Lymph node metastasis				0.026*
Absent	92	58	34
Present	147	71	76
Distant metastasis				0.027*
Absent	208	118	90
Present	31	11	20
TNM stage				0.026*
I+II	92	58	34
III+IV	147	71	76
MSI				0.285*
MSS	200	111	89
MSI-H	39	18	21
APC mutation				0.227*
(−)	151	86	65
(+)	88	43	45
KRAS mutation				0.251*
(−)	159	90	69
(+)	80	39	41
BRAF mutation				0.112*
(−)	197	111	86
(+)	42	18	24
PIK3CA mutation				0.154*
(−)	204	114	90
(+)	35	15	20

^*P value when expression levels were compared using Pearson χ² test