TABLE 2.
Difference in means and prevalence ratios of iron and anemia indices between treatment groups after 6 mo of participation in the Mazira Project, Malawi, 2018–20191
| Egg | Control | GMR (95% CI) | ||||
|---|---|---|---|---|---|---|
| Variable | n | Geometric mean (95% CI) | n | Geometric mean (95% CI) | Minimally adjusted models2 | Fully adjusted models3 |
| Hemoglobin, g/dL | 286 | 10.90 (10.74, 11.05) | 299 | 11.06 (10.90, 11.21) | 0.99 (0.97, 1.01) | 0.98 (0.97, 1.00) |
| Plasma ferritin,4 µg/L | 281 | 6.52 (5.98, 7.10) | 294 | 6.82 (6.27, 7.42) | 0.96 (0.85, 1.08) | 0.96 (0.85, 1.07) |
| Plasma sTfR,4 mg/L | 281 | 11.34 (10.92, 11.78) | 294 | 11.46 (11.04, 11.89) | 0.99 (0.94, 1.04) | 0.99 (0.94, 1.05) |
| Body iron index,4 mg/kg | 281 | 0.07 (0.06, 0.09) | 294 | 0.07 (0.05, 0.08) | 1.06 (0.79, 1.42) | 1.05 (0.79, 1.40) |
| n | % | n | % | PR (95% CI) | PR (95% CI) | |
| Anemia (hemoglobin <11 g/dL), % | 286 | 46 | 299 | 40 | 1.15 (0.96, 1.38) | 1.18 (0.99, 1.42) |
| Any iron deficiency,4 % | 281 | 90 | 294 | 89 | 0.99 (0.94, 1.05) | 1.00 (0.94, 1.05) |
| Ferritin <12 µg/L,4 % | 281 | 79 | 294 | 77 | 1.02 (0.93, 1.11) | 1.02 (0.94, 1.11) |
| sTfR >8.3 mg/L,4 % | 281 | 79 | 294 | 79 | 1.00 (0.92, 1.08) | 1.00 (0.93, 1.08) |
| Body iron index <0 mg/kg,4 % | 281 | 84 | 294 | 81 | 1.04 (0.96, 1.11) | 1.04 (0.97, 1.12) |
| Iron deficiency anemia,4 % | 281 | 42 | 294 | 37 | 1.12 (0.92, 1.36) | 1.16 (0.95, 1.41) |
1
GMR, geometric mean ratio; PR, prevalence ratio; sTfR, soluble transferrin receptor.
2
Adjusted for continuous baseline measures.
3
Adjusted for continuous baseline measures and covariates selected based on a bivariate association (P < 0.1) with the outcome among the following list: child sex, maternal education, number of children under 5 y in the household, month of assessment, minutes between blood collection and completion of aliquoting, and malaria (for hemoglobin and anemia only).