Table 2.

Optical density values for serum GLP-2 detected by ELISA in ulcerative colitis patients and healthy control subjects

Group†	N	Mean‡	Standard deviation	Standard error of the mean
1	11	0.32223636	0.100551340	0.030317370
2	9	0.51012778	0.112026674	0.037342225

^†Group 1, ulcerative colitis patients; Group 2, healthy control subjects.

^‡Values for both groups conformed to a normal distribution, and statistical significance was evaluated with the independent samples t-test(p < 0.05) between groups 1 and 2.

ELISA, enzyme-linked immunosorbent assay; GLP-2, glucagon-like peptide 2.