Irritable bowel syndrome subtypes differ in body awareness, psychological symptoms and biochemical stress markers

Table 7 Biochemical levels (mean ± SD, %)

Category	AHC (n = 21)		D-IBS (n = 30)		C-IBS (n = 16)		A-IBS (n = 34)
C-peptide	0.46 ± 0.14	10/10	0.62 ± 0.28a	40/3	0.55 ± 0.21	25/6	0.57 ± 0.24	35/12
Triglyceride	0.7 ± 0.3	10/0	1.3 ± 0.6c	57/3	1.1 ± 0.5b	38/0	1.2 ± 0.7b	38/0
Prolactin	264 ± 118	5/10	232 ± 94	7/23	374 ± 178ae	31/0	301 ± 148	24/6
Cortisol 8	491 ± 144	10/14	539 ± 239	10/6	591 ± 274	31/19	596 ± 315	44/23
Cortisol 13	316 ± 65	10/14	334 ± 157	27/30	353 ± 118	31/19	333 ± 160	10/14

Biochemical status presented as mean ± SD and percent (%) above/below ± 1SD for the AHC group and D-IBS, C-IBS, and A-IBS patients. Cortisol 8 and 13 equals cortisol level at 8 am, and at 1 pm, respectively.

^aP < 0.05,

^bP < 0.01,

^cP < 0.001, vs AHC;

^eP < 0.01, vs D-IBS.