TABLE 1.
Assigned and model-predicted vitamin A absorption efficiencies for theoretical subjects1
| Predicted | ||||
|---|---|---|---|---|
| ID | Assigned | RE model | RE 5% error | Limited RE 5% error |
| S1 | 55 | 55 | 57 | 61 |
| S2 | 59 | 59 | 62 | 67 |
| S3 | 64 | 64 | 60 | 59 |
| S4 | 67 | 67 | 72 | 71 |
| S5 | 70 | 72 | 62 | 54 |
| S6 | 72 | 72 | 64 | 58 |
| S7 | 74 | 74 | 74 | 73 |
| S8 | 75 | 75 | 74 | 75 |
| S9 | 77 | 77 | 78 | 71 |
| S10 | 80 | 80 | 80 | 77 |
| S11 | 86 | 88 | 86 | 82 |
| S12 | 90 | 90 | 90 | 89 |
| Mean | 72 | 73 | 72 | 70 |
Shown are assigned values and the mean for vitamin A absorption efficiency for 12 theoretical adults as well as values predicted by modeling RE kinetics from 30 min to 8 h (16 samples) after oral administration of labeled retinyl acetate (“RE model”), the same data sets with 5% random error (“RE 5% error”), and a limited RE data set (10 samples) with 5% random error (“limited RE 5% error”). There were no significant differences in assigned versus predicted absorption efficiencies among the data sets based on standard least squares ANOVA and Tukey honest significant difference test. See Supplemental Table 1 for additional subject details. RE, retinyl ester.