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Functional Constipation Prevalence in Eastern and Western Populations
| Countries/Region | Diagnostic criteria | Sample population (n) | Prevalence of functional constipation |
|---|---|---|---|
| Eastern | |||
| China26 | Rome II | 16 078 | 6.0% |
| Taiwan28 | Rome II | 2865 | 8.5% |
| Korea29 | Rome II | 1029 | 9.2% |
| Western | |||
| Oceania31 | Rome II | 1673 | 30.7% |
| Europe31 | Rome II | 647 | 16.6% |
| United States32 | Rome II | 10 018 | 14.7% |
| Canada32 | Rome II | 1149 | 14.9% |
