Distribution of age and psychological factors in subjects with and without irritable bowel syndrome (IBS)
| Variable | No IBS (n=641) | IBS (n=89) | |||||
|---|---|---|---|---|---|---|---|
| Median | 25% | 75% | Median | 25% | 75% | ||
| Age (y) | 43 | 35 | 54 | 45 | 34 | 55 | |
| Neuroticism (score) | 3.0 | 1.0 | 5.0 | 5.0 | 4.0 | 8.0 | |
| Psychological morbidity (score) | 0.0 | 0.0 | 2.0 | 2.0 | 1.0 | 6.0 | |
| Gender (% female) | 51.1 | 72.2 | |||||
25th and 75th percentiles of the distribution.