Effects of phytate reduction on maize/bean blend infant foods used in Southern Ethiopia

The purpose of this study was to develop low-phytate maize-based complementary food by reducing phytate and lowering phytate to zinc molar ratio below 15 thresholds using three local food processing methods, and evaluate sensory quality and acceptability of such complementary foods. A total of 28 samples prepared in triplicate were tested for their phytate and zinc content and phytate to zinc molar ratio. Three samples further evaluated for their sensory quality by 36 mothers and 42 University female staff and student panels selected from the study area. Sensory scores were analyzed using analysis of variance (ANOVA, Proc GLM) and variation attributable to sample difference, addition of meat, or subjects were determined. All means were tested for least significant difference using Tukey’s studentized test and difference at p < 0.05 considered significant.Department of Nutritional Science

Maternal nutritional status mediates the association between maternal age and birth outcomes

Young maternal age during pregnancy is linked with adverse birth outcomes. This study examined the role of maternal nutritional status in the association between maternal age and small for gestational age (SGA) delivery and birth length. We used data from a birth cohort study in Ethiopia, involving women who were 15-24 years of age and their newborns. A mediation analysis was fitted in a sample of 1,422 mother infant dyads for whom data on birth length were available, and 777 dyads for whom gestational age and birth weight was measured. We used commands, medeff for the mediation analysis and medsens for sensitivity analysis in STATA 14. Maternal nutritional status, measured by mid-upper arm circumference, mediated 21% of the association between maternal age and birth length and 14% of the association with SGA delivery. The average direct effect (ADE) of maternal age on birth length was (beta = 0.45, 95% CI [0.17, 0.99]) and the average causal mediated effect (ACME) was (beta = 0.12, 95% CI [0.02, 0.15]). We also found an ADE (beta = 0.31, 95% CI [0.09, 0.47]) and an ACME of (beta = 0.05, 95% CI [0.003, 0.205]) of maternal age on SGA delivery. The sensitivity analysis suggests an unmeasured confounder with a positive correlation of 0.15 and 0.20 between the mediator and the outcome could explain the observed ACME for birth length and SGA, respectively. We cannot make strong causal assertions as the findings suggest the mediator partly explained the total effect of maternal age on both outcomes

Maternal nutritional status mediates the association between maternal age and birth outcomes

Young maternal age during pregnancy is linked with adverse birth outcomes. This study examined the role of maternal nutritional status in the association between maternal age and small for gestational age (SGA) delivery and birth length. We used data from a birth cohort study in Ethiopia, involving women who were 15-24 years of age and their newborns. A mediation analysis was fitted in a sample of 1,422 mother infant dyads for whom data on birth length were available, and 777 dyads for whom gestational age and birth weight was measured. We used commands, medeff for the mediation analysis and medsens for sensitivity analysis in STATA 14. Maternal nutritional status, measured by mid-upper arm circumference, mediated 21% of the association between maternal age and birth length and 14% of the association with SGA delivery. The average direct effect (ADE) of maternal age on birth length was (beta = 0.45, 95% CI [0.17, 0.99]) and the average causal mediated effect (ACME) was (beta = 0.12, 95% CI [0.02, 0.15]). We also found an ADE (beta = 0.31, 95% CI [0.09, 0.47]) and an ACME of (beta = 0.05, 95% CI [0.003, 0.205]) of maternal age on SGA delivery. The sensitivity analysis suggests an unmeasured confounder with a positive correlation of 0.15 and 0.20 between the mediator and the outcome could explain the observed ACME for birth length and SGA, respectively. We cannot make strong causal assertions as the findings suggest the mediator partly explained the total effect of maternal age on both outcomes

Intra-household nutrient inequity in rural Ethiopia

Background: Food assistance interventions directed at households may miss undernourished individuals if intra-household equity in nutrient allocation is assumed. A recent study from Ethiopia revealed that, while all age groups consumed calories in proportion to their fair share, iron and protein were inequitably allocated among household members. Further exploration of individual and household characteristics associated with these allocation patterns is necessary to gain a more complete understanding of existing disparities. Objective: This paper sought to quantify energy, protein, and iron allocation inequity between four age and sex groups of household members (children and adults) commonly assumed to be disadvantaged versus preferentially treated in intra-household resource distribution. It then sought to identify individual and household factors that explained the inequity of intra-household nutrient allocation among these paired groups. Methods: Data from a survey of 1185 households located in rural Oromiya and SNNPR regions of Ethiopia. A single quantitative 24-hour household-level dietary recall was collected from the primary food preparer who reported the proportion of household food distributed to each household member. Continuous ratios of relative calorie, protein, and iron adequacy for four pairs of age-sex groups (any child vs. any adult, any child vs. adult male, female child vs. male child, and adult female vs. adult male) in the household were computed and compared, along with a binary indicator of inequity. Logistic regressions and standard linear regression with Huber-White heteroscedasticity-adjusted standard errors were run to determine the predictors of household inequity for each pair-group and nutrient, on the full sample as well as on nutrient inadequate households. Results: Common assumptions about inequitable distribution of nutrients within households were not consistently supported by this analysis. Significant intra-household nutrient inequities did exist in these rural Ethiopian households for certain nutrients, but household subgroups commonly presumed to be nutritionally vulnerable in the Ethiopian context were not always affected by detrimental inequity. Generally, household inequity favored children over adults or adult males, and female children over male children for protein consumption. Inequities were greatest against presumed vulnerable groups (adult women, children) for ‘invisible’ nutrients (iron) rather than calories or protein. There were relatively few households in which one of the interest groups (groups presumed vulnerable) experienced inequitable nutrient allocation and nutrient inadequacy. The number of households where inequity was present for a subgroup who also experienced nutrient inadequacy while the reference group (group presumed to be preferred) was nutrient adequate was negligible, suggesting that in very few of these household are there members who are “haves”, benefiting nutritionally to the nutritional detriment of “have nots”. The analysis of determinants did not reveal any single, consistent set of factors driving decisions across all pair groups and nutrients, but these factors were not substantially different for households that were and were not nutrient adequate. Household dependency ratio, higher relative male education, female household headship, and women\u27s decision-making power provided mixed results for pairwise comparisons. Conclusions: The variable pattern of nutrient inequities underscores the risk of overlooking intra-household nutrient allocation disparity or making assumptions about a particular intra-household food and nutrient distribution pattern in any context where programs are intended to benefit particular household members