Table 1 Demographic data and reference values
From: Effects of personality traits on the manifestations of irritable bowel syndrome
Variables | All subjects (n = 557) (95% CI) | Reference value (general population (95% CI)) | |
|---|---|---|---|
Sex (male (%)) | 59 (55–63) | 47 (36–45) | Sugaya and Nomura[16] |
Age | 19 ± 1 (19–19) | - | - |
IBS+ (%)a | 26 (22–30) | 14 (12–15) | Kubo M, et al. [27] |
D-IBS (%)b | 4 (3–6) | 4 (−) | Kubo M, et al. [27] |
C-IBS (%)c | 9 (7–12) | 3 (−) | Kubo M, et al. [27] |
A-IBS (%)d | 12 (10–15) | 3 (−) | Kubo M, et al. [27] |
IBS-SI | 34.1 ± 44.2 (30.4-37.8) | 30 (−)g | Tana C, et al. [28] |
K6e,f | 5.4 ± 4.5 (5.0-5.7) | 3.6 ± 3.9 (−) | Sakurai K, et al. [29] |
 Persons with psychological distress (%)g | 7 (5–9) | 7 (7–7) | Kuriyama S, et al. [30] |
MPI | - | - | - |
 Extroversion | 27.2 ± 10.3 (26.3-28.0) | 27. 2 ± 7.0 (−) | Iwawaki, S et al. [31] |
 Neuroticism | 21.6 ± 10.7 (20.7-22.5) | 21.6 ± 7.9 (−) | Iwawaki, S et al. [31] |
 Lie score | 13.4 ± 5.8 (12.9-13.8) | 13.4 ± 5.1 (−) | Iwawaki, S et al. [31] |