Absorption and permeability in asymptomatic subjects residing in major geographical areas
| Area | Number | Excretion of ingested test sugars in urine | L:R ratio | ||||
|---|---|---|---|---|---|---|---|
| 3-m-glucose (% of dose) | d-xylose (% of dose) | L-rhamnose (% of dose) | Lactulose (% of dose) | ||||
| Temperate | |||||||
| Non-tropical | |||||||
| European | 118 | 50.0 (0.9) | 31.2 (0.6) | 10.0 (0.3) | 0.298 (0.012) | 0.031 (0.001) | |
| Subtropical | |||||||
| North American (Texas, USA) | 74 | 49.3 (1.3) | 34.7 (0.8) | 9.2 (0.3) | 0.346 (0.025) | 0.037 (0.002) | |
| Middle Eastern (Qatar) | 32 | 45.3 (1.9) | 33.2 (1.2) | 10.3 (0.5) | 0.272 (0.014) | 0.028 (0.002) | |
| Total | 224 | 49.1 (0.7) | 32.6 (0.5) | 9.8 (0.2) | 0.310 (0.011) | 0.033 (0.001) | |
| Tropical | |||||||
| Asian | 107 | 41.7 (1.2) | 24.2 (0.8) | 6.0 (0.2) | 0.385 (0.024) | 0.075 (0.006) | |
| African | 97 | 47.0 (1.3) | 26.1 (0.7) | 6.4 (0.2) | 0.345 (0.031) | 0.059 (0.006) | |
| Total3-150 | 218 | 44.8 (0.9) | 25.1 (0.5) | 6.2 (0.2) | 0.369 (0.019) | 0.066 (0.004) | |
Results for sugar excretion expressed as mean (SEM) in five hours.
↵3-150 Combined tropical group including Jamaica.