Table 2.

Tissue microarray analysis of correlation between PGK1 expression and clinicopathological parameters (No. HKid-CRC180Sur-01, Outdo Biotech).

Clinicopathological parameters	All patient number (n)	Expression level of PGK1 (n = 90)
		High Number (n)	Low Number (n)	Average scoreb	P valuec
Total	90	49	41	10.42 ± 1.93
Age (years)
<60	46	27	19	10.54 ± 2.03	0.546
≥60	44	22	22	10.30 ± 1.84
Gender
Male	51	28	23	10.53 ± 1.70	0.550
Female	39	21	18	10.28 ± 2.21
Tumor size
≥5 cm	52	35	17	10.77 ± 2.04	0.046
<5 cm	38	14	24	9.95 ± 1.68
Stage
1	60	27	33	10.05 ± 2.05	0.028
2	18	13	5	11.06 ± 1.49
3	4	2	2	10.50 ± 1.73
4	2	2	0	12
unknow	6	5	1	11.50 ± 1.22
Grade
I	33	18	15	10.48 ± 1.77	0.732
I-II	14	7	7	10.50 ± 1.56
II	28	15	13	10.14 ± 2.43
II-III	4	4	0	12
III	10	5	5	10.40 ± 1.71
III-IV	1	0	1	9

^aThe high- and low-level groups was determined by the average score of PGK1.

^bExperimental values are represented as means ± SD.

^cDifferences between two groups (Age: <60 vs. ≥60; Gender: Female vs. Male; Tumor size: <5 cm vs. ≥5 cm; Stage: 1 vs. 2–4; Grade: I, I-II vs. II, II-IV) were assessed using the Student’s t test.