ABSTRACT
Objectives: The main objective of this study was to assess the prevalence and risk factors of zinc deficiency among infants and preschool children. Methods: A community based, cross-sectional study was conducted in East Gojjam zone between October 2011 and April 2012. Sub-samples about 240 infants and preschool children were randomly selected in the study. Data on potential determinants of zinc deficiency were collected using a structured questionnaire. Serum zinc concentration was measured using Atomic Absorption Spectrometer. Statistical analysis was done using ANOVA and Student’s independent t-test and linear regression model. Results: The mean serum zinc concentration of infants and preschool children was 62.98 (±13.03) µg/dl (95% CI: 61.32, 64.63 µg/dl). About 57.1% of the subjects were zinc deficient. The main determinants of low serum zinc status of infants and preschool children were age and number of family members living on the same land. Zinc status of older children was 3.67 µg/dl (95% CI: -5.58,-1.77 µg/dl) lower than children who were aged 6-10 months. Serum zinc status of infants and preschool children is decreased by 0.83 µg/dl (95% CI:-1.36, -0.30 µg/dl) with each additional family member. Food insecurity, dietary diversity, sex, child health, anthropometric indices, maternal education and wealth index were not associated with serum zinc status. Conclusions: The prevalence of zinc deficiency was more than two-fold of the value set by International Zinc Nutrition Consultative Group. Such potential deficiencies require urgent attention including the endorsement of food fortification programs, complementary food preparation education and family planning implementation.
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Objectives: The objective was to examine nutritional, health, and social predictors of early child mental development in the Amhara region of Ethiopia Methods: Using a cluster randomized design, iodized salt was forced early into the markets of 30 villages (intervention group) before it became available in the 30 control villages following national salt iodization legislation. A total of 1880 infants 6 to 10 mo old in the 60 villages were administered Bayley Scales of Infant and Toddler Development (BSID-III) at baseline and when they were 20-29 mo of age (86% of sample) Results: The two groups had similar socioeconomic, nutrition, and mental development scores at baseline. These variables were significant predictors of endline cognitive and language development scores: length-for-age z-score (p<0.001), weight-for-age z-score (p<0.001), psychosocial stimulation (p<0.001), water/sanitation (p<0.001), mother's education (p<0.01), family assets (p<0.001), recent deworming (p<0.05), and maternal depression (p<0.05). The intervention group had significantly higher mental development scores, and a multiple regression analysis revealed that the intervention effect was positively partially mediated by length-for-age z-score (std β= 0.16 to 0.21, p<0.01) and water/sanitation score (std β= 0.09 to 0.10, p<0.01). Conclusions: In conclusion, iodized salt improved children's mental development both directly and indirectly by its effect on growth. The indirect effect through water/sanitation may be because water and sanitation improve health.
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Objectives: The study examined nutritional and other predictors of mental development of preschool-aged children in northern Ethiopia. The current analysis of older children from the iodized salt project (see Infant study) included the effects of iodized salt, along with other determinants. Methods: Using a cluster randomized design, 1550 children in 60 villages in Amhara, Ethiopia were given tests of School Readiness and Wechsler verbal and nonverbal reasoning, twice at 54- 60 months and again at 69-78 months. Between these assessments, iodized salt was distributed early in the markets of 30 randomly assigned villages (intervention group) before it became available in 30 control villages. Results: The two groups were largely comparable at baseline. In addition to the effects of iodized salt on School Readiness (p=0.01) and nonverbal reasoning (p<0.10) seen at the endline, the following predictors were positively and significantly associated with cognitive outcomes: heightfor- age z-score (HAZ; p<0.0001), weight-for-age z-score (p<0.0001), family assets (p<0.0001), recent deworming (p=0.01), improved water/sanitation (p<0.01), and mother's education (p<0.05). Although over two-thirds had palpable goiter, hemoglobin status was good (M=134 g/L). Children overall performed relatively better on the School Readiness test (M=6.66 Intervention and 6.25 Control) than nonverbal reasoning (M= 4.15 Intervention and 3.95 Control)(theoretic ranges 0-19). A multiple regression, following the Baron and Kenny mediation analysis, on School Readiness scores revealed that the intervention effect was partially mediated by HAZ (std β= 0.37 , p<0.0001). Conclusions: In conclusion, iodized salt improved children's School Readiness skills and nonverbal reasoning, both directly, and indirectly by way of its effect on growth.
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Objectives: High prevalence of poor pregnancy (miscarriage) and birth (stillbirth) outcomes has been reported among poor women in Ethiopia. This study evaluated the underlining associated factors. Methods: The study used a cross-sectional design to interview 5192 mothers of children under 5 years of age, who were living in 60 villages, across 60 sub-districts in 6 zones of the Amhara Region of Ethiopia. Socio-demographic, obstetric, and birth information were collected using standardised questionnaires and household salts were tested with rapid test kits. The study protocol received ethical approval from McGill University, Ethiopian Health and Nutrition Research Institute, and the Ethiopian National Research Ethics Review Committee. Results: Households were mainly individual dwellings (83.4%) with agricultural land (90.9%) and rearing livestock (94.1%). Majority of household heads and mothers were illiterate (63.7% and 81.2%, respectively). Sanitation (61.0% scored ≤ 1 out of 3), assets (84.1% scored ≤5 out of 10) and use of iodised salt (6.4%) were very poor and goiter presence in the family was high (41.7%). Prevalence of miscarriage was 95.4 per 1000 pregnancies and stillbirth was 22.7 per 1000 live births. The use of non-iodised salt was associated with miscarriage (r=0.06; p<0.05). Self-reported anaemia, vomiting, and urinary tract infection during pregnancy were common (37.2%, 26.08%, and 19.47% respectively) and were associated with prevalence of miscarriage and stillbirth(r=0.04 to 0.06; p<0.05). Conclusions: Poor pregnancy and birth outcomes occur frequently in rural Ethiopia and are associated with indicators of inadequate dietary intakes of micronutrients.
ABSTRACT
Zinc treatment for diarrhoea can shorten the course and prevent future episodes among children worldwide. However, knowledge and acceptability of zinc among African mothers is unknown. We identified children aged 3 to 59 months, who had diarrhoea within the last three months and participated in a home-based zinc treatment study in rural Kenya. Caretakers of these children were enrolled in two groups; zinc-users and non-users. A structured questionnaire was administered to all caretakers, inquiring about knowledge and appropriate use of zinc. Questions on how much the caretakers were willing to pay for zinc were asked. Proportions were compared using Mantel-Haenszel test, and medians were compared using Wilcoxon Rank Sum test. Among 109 enrolled caretakers, 73 (67%) used zinc, and 36 (33%) did not. Sixty-four (88%) caretakers in zinc-user group reported satisfaction with zinc treatment. Caretakers in the zinc-user group more often correctly identified appropriate zinc treatment (98%-100%) than did those in the non-user group (64-72%, p<0.001). Caretakers in the zinc-user group answered more questions about zinc correctly or favourably (median 10 of 11) compared to those in the non-user group (median 6.3 of 11, p<0.001). Caretakers in the zinc-user group were willing to pay more for a course of zinc in the future than those in the non-user group (median US$ 0.26, p<0.001). Caretakers of children given zinc recently had favourable impressions on the therapy and were willing to pay for it in the future. Active promotion of zinc treatment in clinics and communities in Africa could lead to greater knowledge, acceptance, and demand for zinc.
ABSTRACT
To promote physical and mental development of children, parenting education programmes in developing countries focus on specific practices such as age-appropriate responsive stimulation and feeding. A programme delivered to groups of poor mothers of children, aged less than three years, in rural Bangladesh was evaluated using an intervention-control post-test design. Mothers (n=170) who had attended a year of educational sessions and their children were compared with those (n=159) from neighbouring villages who did not have access to such a programme. After covariates were controlled, the parenting mothers obtained higher scores on a test of child-rearing knowledge and on the Home Observation for Measurement of the Environment (HOME) inventory of stimulation. The parenting mothers did not communicate differently with their children while doing a picture-talking task, and children did not show benefits in nutritional status or language comprehension. Parenting sessions offered by peer educators were informative and participatory, yet they need to include more practice, problem-solving, and peer-support if information is to be translated into behaviour.