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Table 3 Age, sex, and inventory scores

From: Gastrointestinal specific anxiety in irritable bowel syndrome: validation of the Japanese version of the visceral sensitivity index for university students

Variables All participants Non-IBS IBS+ Reference value [[28]]
(N= 349) (N= 310) (N= 39) Non-IBS IBS+
Age 18.8 ± 0.5 [18.7–18.8] 18.8 ± 0.6 [18.7–18.9] 18.8 ± 0.6 (18.6–18.8) 19 19
Sex (% male) 59 [54–64] 63 [57–68] 33 [21–49] - -
IBS + (%) 11 [8–15] - - - -
VSI 15.2 ± 13.6 [13.8–16.6] 14.0 ± 12.9 [12.5–15.4] 25.1 ± 15.3 [20.2–30.1]** 8.2 [7.2–9.2] 28.0 [22.1–33.9]
ASI 16.6 ± 9.7 [15.7–17.6] 16.1 ± 9.2 [15.0–17.1] 20.8 ± 12.4 [16.7–24.8]** 18.6 [18.5–18.7] 23.2 [19.5–26.9]
HAD-ANX 8.5 ± 4.0 [8.1–8.9] 8.4 ± 4.0 [8.0–8.9] 9.3 ± 4.5 [7.8–10.7] 6.5 [6.1–6.9] 8.5 [7.7–9.3]
HAD-DEP 7.6 ± 3.1 [7.3–7.9] 7.6 ± 3.1 [7.3–8.0] 7.5 ± 2.9 [6.5–8.4] 3.1 [2.7–3.5] 5.4 [5.0–5.8]
IBS-SI 103.8 ± 86.7 [96.1–114.0] 90.9 ± 77.3 [82.3–99.6] 206.2 ± 91.0 [176.7–225.7]** - -
  1. Data are expressed as: mean ± standard deviation [95% confidence interval].
  2. Abbreviations: VSI Visceral Sensitivity Index, ASI Anxiety Sensitivity Index, HAD-ANX and HAD-DEP subscales of the Hospital Anxiety and Depression Scale, IBS-SI Irritable Bowel Syndrome Severity Index, IBS + positive diagnosis of Irritable Bowel Syndrome, Non-IBS no presence of Irritable Bowel Syndrome.
  3. **p < 0.01 for IBS + vs. Non-IBS.