. 2020 Jan 19;2020:4347936. doi: 10.1155/2020/4347936

Table 2.

Levels of serum DPP-IV activity, sCD26 concentration, and anti-CD26/DPP-IV autoantibody isotypes according to demographic characteristics and origin of the cohort.

Characteristic	DPP4 Mean ± SD (mU/mL)			sCD26 Mean ± SD (ng/mL)			IgA Mean ± SD (Abs_450nm)			IgG Mean ± SD (Abs_450nm)			IgM Mean ± SD (Abs_450nm)
Characteristic	N		p value	N		p value	N		p value	N		p value	N		p value
Sex
Men	182	45.20 ± 24.87	0.002 ^a	189	443.19 ± 129.39	0.176^a	76	0.26 ± 0.12	0.530^a	76	0.27 ± 0.08	0.328^a	76	0.17 ± 0.09	0.146^a
Women	146	37.64 ± 19.69		144	461.87 ± 117.87		48	0.28 ± 0.11		49	0.29 ± 0.08		49	0.20 ± 0.13
Age (years)
≤50	126	39.98 ± 22.61		126	452.22 ± 110.88		54	0.25 ± 0.10		55	0.27 ± 0.08		55	0.18 ± 0.08
51-60	95	41.55 ± 18.85	0.206^b	94	458.03 ± 98.92	0.494^b	40	0.26 ± 0.11	0.062^b	40	0.29 ± 0.10	0.716^b	40	0.19 ± 0.14	0.296^b
≥61	50	35.15 ± 19.35		51	436.68 ± 94.06		29	0.31 ± 0.13		29	0.27 ± 0.07		29	0.15 ± 0.10
Group
CTG (n = 50)	50	43.51 ± 15.86	0.542^a	50	459.50 ± 103.48	0.528^a	25	0.28 ± 0.08	0.863^a	25	0.27 ± 0.10	0.673^a	25	0.24 ± 0.15	0.005 ^a
HCU (n = 447)	434	41.95 ± 25.02		443	448.58 ± 117.37		112	0.28 ± 0.13		113	0.28 ± 0.08		113	0.17 ± 0.09
HCU group relative to FIT
Negative for FIT (n = 138)	137	37.44 ± 22.13	0.249^a	135	451.98 ± 95.21	0.652^a	22	0.28 ± 0.11	0.535^a	23	0.28 ± 0.08	0.851^a	23	0.17 ± 0.08	0.842^a
Positive for FIT (n = 86)	84	40.92 ± 20.97		86	445.49 ± 116.75		77	0.26 ± 0.12		77	0.28 ± 0.08		77	0.16 ± 0.09

FIT: faecal immunochemical test; ^aStudent's t test; ^bANOVA test.