| Patient characteristic | ρ* | F† | χ2‡ | p Value |
| Sociodemography | ||||
| Gender | 4.3 | 0.04 | ||
| Occupational status | 21.2 | 0.007 | ||
| Gastric sensorimotor function | ||||
| Gastric sensitivity | 8.2 | 0.004 | ||
| Psychosocial–psychiatric | ||||
| Depression | 0.30 | 0.0002 | ||
| Positive affect | −0.20 | 0.02 | ||
| Childhood sexual abuse | 12.23 | 0.007 | ||
| Somatic symptom variables | ||||
| Dyspepsia symptom severity | 0.22 | 0.006 | ||
| Somatisation | 0.41 | <0.0001 |
Values in italic indicate significances at p⩽0.001.
*Spearman’s rho correlation coefficient. †One-way analysis of variance (ANOVA). ‡Kruskal–Wallis non-parametric one-way ANOVA.