Table 3.
Age, sex, and inventory scores
| 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]** | - | - |
Data are expressed as: mean ± standard deviation [95% confidence interval].
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.
**p < 0.01 for IBS + vs. Non-IBS.