Table 2.

Item scores of IBS-SSS in IBS-D patients with low (LS) and high scores (HS) of somatization

	LS (n = 19)	HS (n = 28)	P
Abdominal pain severity	38.68 ± 23.85	53.03 ± 22.74	0.03
Abdominal pain duration (days)	33.15 ± 28.09	50.71 ± 27.47	0.03
Abdominal distension severity	53.31 ± 27.12	58.14 ± 19.63	0.54
Bowel habit satisfaction	70.10 ± 20.78	65.85 ± 23.99	0.73
Life disruption	60.00 ± 20.27	57.89 ± 23.12	0.88
Total score	255.26 ± 78.11	285.64 ± 85.90	0.16

Data are expressed as means ± SD. P-Value was determined by Mann–Whitney test rank-sum test; differences were considered significant at  P< 0.05. LS, Low somatization level; cut-off score < 63; HS, High somatization level; cut-off score ≥ 63