Prevalence (%) of irritable bowel syndrome in the USA using three Manning or the Rome criteria
| Reference No | Group characteristics | n | Diagnostic criteria | Total (%) IBS | Men (%) IBS | Women (%) IBS |
|---|---|---|---|---|---|---|
| 21 | US White | 835 | 3 Manning | 12.8 | 12.1 | 13.6 |
| 15 | UK White urban | 1896 | 3 IBS symptoms | 9.5 | 5.0 | 13.0 |
| 8 | US students | 1344 | 3 Manning | 15.5 | 9.6 | 18.3 |
| 12 | US elderly | 328 | 3 Manning | 10.9 | NA | NA |
| 22 | US health examinees | 1264 | 3 Manning | 3.6 | 1.5 | 5.2 |
| 23 | US students | 789 | 3 Manning | 11.7 | NA | NA |
| 5 | US 95% White | 5430 | Rome | 9.4 | 7.7 | 14.5 |