Table 3.

Comparison of serum levels of diamine oxide, D-lactate, and mucin 2 between colorectal cancer patients and normal control (mean ± SD)

Group	n (%)	DAO (pg/mL)	D-LAC (μg/L)	MUC2 (ng/L)
Normal control	20	158.21 ± 15.98	973.69 ± 128.08	305.98 ± 31.50
CRC	66	185.40 ± 25.49	1216.93 ± 204.20	364.58 ± 48.30
P value		< 0.01	< 0.01	< 0.01

There were 66 cases of colorectal cancer (CRC) and 20 cases of normal controls. Serum levels of mucin 2, diamine oxide, D-lactate in CRC patients were higher than those in the normal control group. MUC2: Mucin 2; DAO: Diamine oxide; D-LAC: D-lactate; CRC: Colorectal cancer.