Table 2.
Patient characteristics and comparisons of patients with and without IBS in the “Neurological” group.
| Patient characteristics | No IBS | IBS | Statistics |
|---|---|---|---|
| Gender (female/male) | 8 (62%)/5 (38%) | 4 (67%)/2 (33%) | p = 0.85 |
| Age (years) | 46.5 (15.6) | 49.2 (12.7) | p = 0.72 |
| Education (years) | 13 (10–17) | 13.5 (10–17) | p = 0.90∗ |
| IBSSS | 87.9 (67.8) | 164.5 (107.9) | p = 0.08 |
| BDI-II | 5 (0–26) | 4.5 (2–19) | p = 0.90∗ |
| MADRS | 6.9 (5.0) | 10.5 (7.5) | p = 0.23 |
| MMSE | 30 (28–30) | 28.5 (27–30) | p = 0.24∗ |
| Trail Making A (simple) | 32 (20–67) | 36 (24–145) | p = 0.52∗ |
| Trail Making B (complex) | 71 (45–130) | 69.5 (61–181) | p = 0.83∗ |
| Grooved Pegboard Test (dominant hand) | 70 (54–94) | 68 (56–112) | p = 0.90∗ |
| Grooved Pegboard Test (not dominant hand) | 73 (55–131) | 75 (62–135) | p = 0.64∗ |
| HVLT immediate total recall | 23 (10–29) | 26.5 (20–29) | p = 0.28∗ |
| HVLT delayed recall | 10 (1–12) | 10 (6–11) | p = 0.58∗ |
| BVMT immediate total recall | 21.0 (6.0) | 20.2 (4.1) | p = 0.76 |
| BVMT delayed recall | 8.4 (2.6) | 9.1 (1.6) | p = 0.51 |
| WAIS-III Vocabulary | 41.7 (6.6) | 45.8 (6.3) | p = 0.22 |
| WAIS-III Digit Symbol | 62.8 (16.3) | 54.7 (11.7) | p = 0.29 |
| WAIS-III Symbol Search | 29.8 (8.1) | 24.3 (9.5) | p = 0.21 |
| Stroop 1 (Word) | 31 (25–44) | 33 (30–45) | p = 0.15∗ |
| Stroop 2 (Colour) | 24 (20–39) | 26.5 (22–28) | p = 0.42∗ |
| Stroop 3 (Interference) | 54 (39–118) | 58 (48–104) | p = 0.77∗ |
| COWAT (words on F, A, and S) | 31 (18–75) | 25 (22–34) | p = 0.24∗ |
| COWAT (Cloths) | 19.7 (5.5) | 18.5 (3.6) | p = 0.62 |
| COWAT (Animals) | 23.2 (7.4) | 22.2 (2.0) | p = 0.76 |
The results are given as the number (proportion in per cent), mean (SD), and median (range) and analysed with exact unconditional table analyses, t-test, and Mann-Whitney U test (marked with ∗).