Table 1.

Clinicopathological characteristics of the patients

	N = 152	100%
Sex
Men	90	59.2%
Women	62	40.8%
Age, years (median)	61.59 ± 12.08
Tumor location
Rectum	106	69.7%
Left hemicolon	17	11.2%
Right hemicolon	29	19.1%
Serum CEA levela (n)
0	99	65.1%
1	37	24.3%
2	16	10.5%
Serum CA19‐9 levelb (n)
0	121	79.6%
1	16	10.5%
2	15	9.9%
Stage
I	15	9.9%
II	31	20.4%
III	28	18.4%
IV	78	51.3%
Treatment of metastatic CRC (N = 78)
No surgical treatment	22	28.2%
Surgical treatment for primary tumor	32	41.0%
Surgical treatment for primary and metastatic tumor	24	30.8%
Recurrencec(local and distant)
No	61	62.2%
Yes	37	37.8%
Survival status
Alive	92	60.5%
Death	60	39.5%

^aCEA: 0 < 5 ng/mL, >5 to <20 ng/mL, 2 > 20 ng/mL.

^bCA19‐9: 0 < 20 ng/mL, 1 > 20 to <50 ng/mL, 2 > 50 ng/mL.

^cIncluding metastatic patients who received the surgical treatment for primary and metastatic tumor.