Anemia, Dietary Habits, Folate Deficiency, Iron Deficiency, Vitamin A Deficiency, Vitamin B 12 Deficiency, Zinc Deficiency
Conditions
Brief summary
This pilot aims to generate data that are critical for informing the design of a planned, more detailed study to evaluate the effect of multiple micronutrient (MN)-fortified bouillon cube on biomarkers of nutrient status of women and children. Data collection includes measures of nutritional status and dietary intake among women and children and their households in communities in northern Ghana.
Detailed description
Background: Micronutrient (MN) deficiencies are severe and widespread in West Africa including Ghana, which contributes to impaired growth and development in children, increased risk of mortality, and low economic productivity in adults. While large-scale intervention programs (including salt iodization and cooking oil and wheat flour fortification) exist, these programs are often not well-monitored, and they often provide only a subset of nutrients or reach only a subset of the deficient population. Bouillon cubes may be an ideal fortification vehicle for delivering micronutrients in West Africa because they are purchased by most households (including rural and poorer households), added to home-made meals and consumed by most members of the household in relatively constant amounts, and they are mainly processed centrally at large scale. However, several important questions must be addressed regarding the extent to which multi-fortified bouillon cubes can address inadequate intake of key micronutrients. Objective: This pilot aims to generate data that are critical for informing the design of a planned, more detailed study to evaluate the effect of multiple micronutrient-fortified bouillon cube on biomarkers of nutrient status of women and children. Methods: This will be a cross-sectional study, which will be conducted in the Kumbungu and Tolon districts in the Northern Region, where a recent survey showed that micronutrient deficiencies were common. Four sets of research activities will be carried out, including: 1. Pilot survey: The investigators will recruit non-pregnant, non-lactating women of reproductive age, WRA (n = 250), children 2-5 years of age (n = 250), and lactating women (n= 250) who will be identified from households in selected communities using the random walk method. Information collected will include anthropometric and micronutrient status, hemoglobin concentration, inflammation, morbidity, household-level food consumption, and individual dietary intakes. 2. Retinol isotope dilution (RID) Pilot Study 1: The investigators will recruit non-pregnant and nonlactating women of reproductive age, WRA (n = 30) from a subset of the same communities as the pilot survey using the random walk method, and quantitatively estimate their total body vitamin A stores after consuming a dose of d6-labelled vitamin A. Total body stores of vitamin A will be estimated at 14 days after dosing. 3. Retinol isotope dilution (RID) Pilot Study 2 (kinetic study): Based on results from RID pilot study 1, the investigators will recruit non-pregnant and non-lactating women of reproductive age, WRA (n = 123) from a subset of the same communities as the pilot survey using the random walk method, to construct a population-level plasma retinol kinetic curve, after consuming a dose of d6-labelled vitamin A. A compartmental model will be fit to the plasma retinol kinetic data to develop population-specific coefficients for the RID prediction equation to quantitatively estimate total body vitamin A stores of WRA in the study population. 4. Formative research: The investigators will (a) conduct focus group discussions on knowledge, attitudes and practices related to salt and bouillon cube use, nutrition and health problems in the community, and micronutrient fortification; (b) perform a market assessment of the availability and cost of fortified, non-fortified and potentially fortifiable foods in the communities; and (c) observe how various local food recipes are prepared, including the types and quantities of ingredients used, and cooking duration and temperature.
Interventions
N/A (observational study)
Sponsors
University of Ghana
Newcastle University
Penn State University
Helen Keller International
University of California, Davis
Study design
Observational model
COHORT
Time perspective
CROSS_SECTIONAL
Eligibility
Sex/Gender
ALL
Age
2 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
Pilot survey Inclusion Criteria: * non-pregnant, non-lactating woman of reproductive age (15-49 years) OR child 2-5 years of age OR non-pregnant lactating woman (4-18 mo post-partum, 15-49 years of age) * signed informed consent by participant (if adult woman) or by at least one parent or guardian (if child)
Exclusion criteria
* severe illness warranting hospital referral * chronic severe medical condition (e.g. malignancy) or congenital anomalies requiring frequent medical attention or potentially inferring with nutritional status * unable to provide informed consent due to impaired decision making abilities (if adult woman, or caretaker of potentially eligible child) * current participation in a clinical trial RID Pilot 1 Inclusion Criteria: * non-pregnant, nonlactating woman of reproductive age (15-49 years) * signed informed consent * planning to remain in the study area for the next 1 month * not planning to become pregnant during the next 1 month
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Fortified food accessibility | Day 1 | Availability, price, and fortification levels of fortified food products in markets |
| Recipe ingredients | Day 1 | Quantity of each recipe ingredient (including bouillon and salt) used in common local recipes; interpreted in relation to cooking duration and temperature (type and duration, e.g. of boiling) used in common recipes |
| Coefficient S | Blood samples from RID Pilot 2 participants collected at randomly assigned time points over a 90-day time frame | Defined as retinol specific activity in plasma/stores at time t, estimated by modeling of data on labeled and unlabelled vitamin A in plasma collected using a Super Woman design and used to calculate total body stores for individual participants. |
| Themes from focus group discussions | Day 1 | Perceptions of bouillon and salt use, cooking practices, noncommunicable disease, and other nutrition and diet-related issues |
| Urinary iodine concentration | Day 1 | Iodine concentration of urine among women and children |
| Hemoglobin | Day 1 | Hemoglobin concentration in venous blood (g/dL) among women and children |
| Iron status | Day 1 | Concentrations of iron status biomarkers (serum iron, ferritin, and soluble transferrin receptor) among women and children |
| Vitamin A status | Day 1 | Concentrations of vitamin A status biomarkers (serum retinol and retinol-binding protein) among women and children |
| Vitamin B12 status | Day 1 | Concentrations of vitamin B12 in serum among women and children |
| Folate status | Day 1 | Concentrations of folate in serum (among women and children) and whole blood and erythrocytes (women only) |
| Zinc status | Day 1 | Serum zinc concentration among women and children |
| Breast milk vitamin A concentration | Day 1 | Vitamin A concentration in breast milk, expressed per unit volume and per gram fat |
| Breast milk vitamin B12 concentration | Day 1 | Vitamin B12 concentration in breast milk |
| Total body vitamin A stores | Day 7 | Distribution of total body vitamin A stores among non-pregnant, non-lactating women, expressed as total mass and per gram of liver, estimated by retinol isotope dilution |
| Coefficient Fa | Blood samples from RID Pilot 2 participants collected at randomly assigned time points over a 90-day time frame | Defined as the fraction of the oral tracer dose absorbed and retained in stores, estimated by modeling of data on labeled and unlabelled vitamin A in plasma collected using a Super Woman design and used to calculate total body stores for individual participants. |
| Prevalence of anemia and micronutrient deficiencies | Day 1 | Prevalence of hemoglobin and micronutrient biomarkers above or below relevant cutoffs |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Individual dietary intake | Day 1 | Dietary intake of fortified foods and bouillon, measured by 24h recall among a subset of women participating in the survey who also participate in cooking observations |
| Blood pressure | Day 1 | Blood pressure measured among women and children (mm Hg, systolic and diastolic) |
| Hypertension | Day 1 | Prevalence of blood pressure measurements above cutoffs for hypertension |
| Height, cm | Day 1 | Standing height measured among women and children |
| Weight, kg | Day 1 | Weight measurement among women and children |
| Waist to hip ratio | Day 1 | Waist and hip circumference (measured in cm) among women and their ratio |
| Mid-upper arm circumference, cm | Day 1 | Mid-upper arm circumference measured among children |
| Anthropometric Z-scores | Day 1 | Z-scores calculated for young children based on WHO growth standards (height-for-age, weight-for-height, height-for-age, BMI-for-age) |
| Prevalence of undernutrition | Day 1 | Prevalence of anthropometric Z-scores or mid-upper arm circumference below WHO cutoffs to indicate child undernutrition |
| Prevalence of overweight and obesity | Day 1 | Prevalence of body mass index (women) or BMI-for-age Z-score (children) above WHO cutoffs |
| Morbidity symptoms | Day 1 | Reported malaria, diarrhea, fever, or vomiting in the past 7 days (all survey participants) |
| Inflammation | Day 1 | Serum concentrations of CRP, AGP, amyloid A, MCP-1, IL-6, IL-10, IL-1b, adiponectin |
| Household-food consumption | Day 1 | Calculated daily household level consumption and individual apparent consumption of fortified foods (wheat flour, oil, salt) and bouillon estimated using 1-month recall |
| Urinary sodium concentration | Day 1 | Expressed per unit volume and in relation to urinary creatinine concentration |
| Status of other micronutrients | Day 1 | Concentrations of micronutrients in serum and breast milk (vitamins E, B1, B2, B3, B5, B6, B7) |
Other
| Measure | Time frame | Description |
|---|---|---|
| Micronutrient supplement use | Day 1 | Reported use of daily or periodic micronutrient supplements in the past month |
| Alcohol use | Day 1 | Assessed using the WHO STEPS questionnaire |
| Tobacco use | Day 1 | Assessed using the WHO STEPS questionnaire |
| Physical activity | Day 1 | Assessed using the WHO STEPS questionnaire |
| Consumption of snacks and sweetened beverages | Day 1 | Assessed using the WHO STEPS questionnaire |
| Consumption of fruits and vegetables | Day 1 | Assessed using the WHO STEPS questionnaire |
Countries
Ghana
Outcome results
None listed