Table 2.
Relationship between zinc content of 24-hour dietary recall and mean serum zinc level.
| Zinc content of meal | Mean serum zinc concentration μg/dL (± SD) | F | P-value | ||
| Genotype AA | Sickle cell anaemia | ||||
| Steady state | Painful crisis | ||||
|
| |||||
| Low | 45.0†† | 30.7 (12.1) | 33.9 (20.7) | t = 0.3 | .8 |
| Moderate | 41.1 (17.2) | 40.8 (14.0) | 24.8 (10.5) | 18.4 | .000 |
| High | 43.3 (12.5) | 37.6 (13.7) | 28.5 (11.4) | 9.9 | .000 |
††Only one subject in the control group had low zinc item and was removed from the statistical analysis; therefore, student t-test was used to compare the mean zinc level between sickle cell anaemia subjects in steady state and painful crisis in the first row.