Table 5.

The 5-HT in IBS patient and HC

References	IBS patient			HC
	Mean (nmol/l)	SD	Number	Mean (nmol/l)	SD	Number
Thijssen et al. [32]	10.99	22.75	154	10.84	13.44	137
Keszthelyi et al. [33]	26.20	18.20	15	1.90	1.36	15
Yu et al. [30]	35.31	2.15	30	10.55	1.35	30
Park et al. [29]	85.75	76.67	21	31.49	23.49	13
Dunlop et al. [31]	29.53	7.35	15	41.00	6.90	15

5-HT, 5-hydroxytryptamine; IBS, irritable bowel syndrome; HC, healthy control