Table 3. Longitudinal effects of micronutrient fortified rice on hookworm infection risk of baseline uninfected children.
| Hookworm infection: baseline uninfected children | |||||||
|---|---|---|---|---|---|---|---|
| Baseline n/N (%) | 3 months n/N (%) | 7 monthsn/N (%) | crude % point risk difference with placebo (95% CI) | aOR1 (N = 982) | 95% CI | P value | |
| Placebo | 0/280 (0.0) | 26/214 (12.1) | 23/194 (11.9) | 1 (ref) | |||
| Any fortified rice | 0/854 (0.0) | 97/576 (16.8) | 125/591 (21.2) | + 9.3% (2.9 to 14.7) | 1.86 | 1.17 to 2.95 | 0.009 |
| - UltraRice_ original | 0/280 (0.0) | 34/207 (16.4) | 56/228 (24.6) | + 12.7% (5.3 to 19.8) | 1.89 | 1.06 to 3.37 | 0.032 |
| - UltraRice_improved | 0/297 (0.0) | 39/208(18.8) | 41/188 (21.8) | + 10.0% (2.5 to 17.4) | 1.91 | 1.12 to 3.26 | 0.018 |
| - NutriRice | 0/277 (0.0) | 24/161 (14.9) | 28/175 (16.0) | + 4.1% (-2.9 to 11.4) | 1.74 | 0.63 to 4.81 | 0.284 |
1 From mixed modelanalysis, adjusted for sex, age (in quartiles) and baseline prevalence of hookworm at the school.