5. Design of impact assessment of REU Control Model 1 Model 2 Model 2 Model 1 Control Baseline Follow up Intervention No intervention Prospective (before-after), randomized evaluation design Impact survey will examine changes in intervention communities relative to changes in control communities Mozambique: 11-12/2006 Uganda: 06-08/2007 Both countries: mid-2009
6. Attributable impact along the pathway toward improved health status Adoption Consumption Health Welfare Vitamin A intakes Mediating factors