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Table 3 Measurement schedule for key study indicators

From: Improving diets and nutrition through an integrated poultry value chain and nutrition intervention (SELEVER) in Burkina Faso: study protocol for a randomized trial

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

  1. 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