Table 3.
Measurement schedule for key study indicators
| Main trial comparisons | Survey round | ||||||
| Longitudinal, 1800 households | BL (Feb 2017) | R2 (Aug 2017) | R3 (Aug 2019) | R4 (Feb 2020) | R5 (Feb 2021) | ||
| Primary | Dietary intake | Dietary diversity (women and children) | I | I | I | ||
| IYCF practices | Minimum acceptable diet (6–24 months) | I | I | I | |||
| Poultry output | Production, sales, and profits | I | I | I | |||
| Secondary | Women’s empowerment | WEAI | I | I | I | ||
| Maternal stress and wellbeing | I | I | I | ||||
| Poultry VC | I | I | I | ||||
| Morbidity | Recall of diarrhea, fever, and chest infections | I | I | I | |||
| Hygiene | Exposure to poultry feces and cleanliness | O | O | O | |||
| Hygiene knowledge | I | I | I | ||||
| Women’s nutrition knowledge | Nutrition KAP | I | I | I | |||
| Nutrition | Anthropometry | M | M | M | |||
| Expenditures | I | I | I | ||||
| Other household and maternal factors | I | I | I | ||||
| WASH sub-study comparisons | Survey round | ||||||
| Longitudinal, 1080 households | BL (Feb 2017) | R2 (Aug 2017) | R3 (Aug 2019) | R4 (Feb 2020) | R5 (Feb 2021) | ||
| Primary | Dietary intake | Probability of adequacy (Fe, Zn, Vit A), IDDS | I | I | I | I | I |
| IYCF practices | Minimum acceptable diet (6–24 months) | I | I | I | I | I | |
| Poultry output | Production, sales, and profits | I | I | I | I | I | |
| Secondary | Maternal stress and wellbeing | I | I | I | I | I | |
| Poultry VC | I | I | I | I | I | ||
| Morbidity | Recall of diarrhea, fever, and chest infections | I | I | I | I | I | |
| Hygiene | Exposure to poultry feces and cleanliness | O | O | O | O | O | |
| Hygiene knowledge | I | I | I | I | I | ||
| Women’s nutrition knowledge | Nutrition KAP | I | I | I | I | I | |
| Nutrition | Anthropometry | M | M | M | M | M | |
| Expenditures | I | I | I | I | I | ||
| Other household and maternal factors | I | I | I | I | I | ||
| Micronutrient status (children) | Hemoglobin (Hb) | B | B | B | |||
| Plasma ferritin (PF) | B | B | B | ||||
| Soluble transferrin receptor (sTfR) | B | B | B | ||||
| Retinol-binding protein (RBP) | B | B | B | ||||
| Infection (children) | Serum C-reactive protein (CRP) | B | B | B | |||
| α-1-acid glycoprotein (AGP) | B | B | B | ||||
| Malaria | B | B | B | ||||
| Pathogenic gut bacteria | S | S | S | ||||
| Cognition (children) | T | T | T | ||||
B blood, BL baseline, I interview, IDDS individual dietary diversity score, IYCF infant and young child feeding, KAP knowledge attitude practices, M measurement, O observation, R follow-up round, S stool, T test, WEAI Women’s Empowerment in Agriculture Index