Table 1 Clinical characteristics of the patients with irritable bowel syndrome (IBS)

Characteristic	IBS subtype			p Value
Characteristic	IBS-C	IBS-D	IBS-A	p Value
Sex (M/F)	2/17	7/10	2/13	–
Age (in years), with the range	43.6 (22–65)	45.1 (19–71)	47.2 (20–78)	0.8
Abdominal pain severity (mean score and SD)	2.5 (0.8)	2.6 (0.9)	2.1 (0.8)	0.3
Abdominal pain frequency (mean score and SD)	2.5 (0.6)	2.6 (0.8)	2.7 (1.0)	0.5

IBS-A, constipation alternating with diarrhoea; IBS-C, predominant constipation; IBS-D, predominant diarrhoea.
SD, standard deviation.