Table 1.

Correlation of tissue CPN1 expression with clinicopathological parameters

Parameters	Sample	CPN1		x2	P value
		Low	High
Age (years) ≤ 60	77	53	24	2.851	0.091
> 60	46	23	23
Tumor size (cm) ≤ 5	103	67	36	4.325	0.038*
> 5	20	9	11
LN metastasis N0	61	38	23	3.031	0.082
N1	62	24	38
TNM stage I–II	71	49	22	5.083	0.024*
III–IV	52	26	26
Histological grade I–II	66	48	18	4.389	0.036*
III	57	32	45
ER score ≤ 4	66	39	27	10.557	0.228
> 4	57	37	20
PR score ≤ 4	91	58	33	12.553	0.128
> 4	32	18	14
HER2 score ≤ 4	66	47	19	9.503	0.302
> 4	57	29	28
KI67 score ≤ 4	94	57	37	10.8	0.213
> 4	29	19	10
P53 score ≤ 4	77	47	30	7.97	0.436
> 4	46	29	17

*Statistically significant (P < 0.05)