Publications

PUBLICATIONS

by IFPRI | June 14, 2019

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Conflict of interest in nutrition: Where’s the power? Comment on “Towards preventing and managing conflict of interest in nutrition policy? An analysis of submissions to a consultation on a draft WHO tool”
Harris, Jody; Nisbett, Nicholas; Gillespie, Stuart. Article in press

Abstract | View

Actual or perceived conflict of interests (COIs) among public and private actors in the field of nutrition must be managed. Ralston et al expose sharply contrasting views on the new World Health Organization (WHO) COI management tool, highlighting the contested nature of global debates. Both the WHO COI tool and the Ralston et al paper are largely quiet on aspects of power among different actors, however, which we argue is integral to these conflicts. We suggest that power needs to be acknowledged as a factor in COI; that it needs to be systematically assessed in COI tools using approaches we outline here; and that it needs to be explicitly addressed through COI mechanisms. We would recommend that all actors in the nutrition space (not only private companies) are held to the same COI standards, and we would welcome further studies such as Ralston et al to further build accountability.
Food for thought? Experimental evidence on the learning impacts of a large-scale school feeding program
Aurino, Elisabetta; Gelli, Aulo; Adamba, Clement; Osei-Akoto, Isaac; Alderman, Harold. Madison, WI Article in press

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There is limited experimental evidence on the effects of large-scale, government-led interventions on human capital in resource-constrained settings. We report results from a randomized trial of the government of Ghana’s school feeding. After two years, the program led to moderate average increases in math and literacy standardized scores among pupils in treatment communities, and to larger achievement gains for girls and disadvantaged children and regions. Improvements in child schooling, cognition, and nutrition constituted suggestive impact mechanisms, especially for educationally-disadvantaged groups. The program combined equitable human capital accumulation with social protection, contributing to the “learning for all” sustainable development agenda.
Food consumption–production response to agricultural policy and macroeconomic change in Nigeria
Ecker, Olivier; Hatzenbuehler, Patrick L.. Article in press

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Achieving agricultural transformation and farmer resilience in resource‐dependent developing countries like Nigeria is complicated by volatile macroeconomic conditions, which disrupt agricultural supply chains through income, foreign exchange, and risk‐mitigation effects. This study examines the food consumption–production linkage in Nigeria at a time when the national Agricultural Transformation Agenda was implemented and an economic crisis was unfolding. Many farm households responded to expected shocks by planting more staple foods for own consumption at the expense of agricultural commercialization, income growth, and dietary diversification. A policy initiative to improve access to modern farm inputs appeared to mitigate these adverse effects.
Paying for digital information: Assessing farmers’ willingness to pay for a digital agriculture and nutrition service in Ghana
Hidrobo, Melissa; Palloni, Giordano; Aker, Jenny; Gilligan, Daniel O.; Ledlie, Natasha. Article in press

Agriculture-nutrition linkages, cooking-time, intrahousehold equality among women and children: Evidence from Tajikistan
Takeshima, Hiroyuki; Akramov, Kamiljon T.; Park, Allen; Ilyasov, Jarilkasin; Ergasheva, Tanzila. Article in press

Adolescent birth and child undernutrition: An analysis of demographic and health surveys in Bangladesh, 1996–2017
Nguyen, Phuong Hong; Scott, Samuel; Khuong, Long Quynh; Pramanik, Priyanjana; Ahmed, Akhter; Rashid, Sabina Faiz; Afsana, Kaosar; Menon, Purnima. Article in press

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Adolescent birth is a major global concern owing to its adverse effects on maternal and child health. We assessed trends in adolescent birth and examined its associations with child undernutrition in Bangladesh using data from seven rounds of Demographic and Health Surveys (1996–2017, n = 12,006 primiparous women with living children <5 years old). Adolescent birth (10–19 years old) declined slowly, from 84% in 1996 to 71% in 2017. Compared with adult mothers (≥20 years old), young adolescent mothers (10–15 years old) were more likely to be underweight (+11 pp), have lower education (−24 pp), have less decision-making power (−10 pp), live in poorer households (−0.9 SD) with poorer sanitation (−15 pp), and have poorer feeding practices (10 pp), and were less likely to access health and nutrition services (−3 to −24 pp). In multivariable regressions controlled for known determinants of child undernutrition, children born to adolescents had lower height-for-age Z-scores (−0.29 SD for young and −0.10 SD for old adolescents (16–19 years old)), weight-for-age Z-score (−0.18 and −0.06 SD, respectively) as well as higher stunting (5.9 pp) and underweight (6.0 pp) than those born to adults. In conclusion, birth during adolescence, a common occurrence in Bangladesh, is associated with child undernutrition. Policies and programs to address poverty and improve women's education can help delay marriage, reduce early childbearing, and improve child growth.
Multiple-micronutrient supplementation in pregnant adolescents in low- and middle-income countries: A systematic review and a meta-analysis of individual participant data
Keats, Emily C.; Thurairajah, Pravheen; Thurairajah, Pravheen; Cousens, Simon N.; Bhutta, Zulfiqar A.; Global Young Women’s Nutrition Investigators’ Group. Article in press

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Approximately 7.3 million births occur annually among adolescents in low- and middle-income countries. Pregnant adolescents constitute a nutritionally vulnerable group that could benefit from intervention to mitigate the mortality and adverse birth outcomes associated with adolescent pregnancy.
Effect of parboiling conditions on zinc and iron retention in biofortified and non-biofortified milled rice
Taleon, Víctor; Hasan, Md Zakiul; Jongstra, Roelinda; Wegmüller, Rita; Bashar, Md Khairul. Article in press

Provision and utilisation of health and nutrition services during COVID-19 pandemic in urban Bangladesh
Nguyen, Phuong Hong; Sununtnasuk, Celeste; Pant, Anjali; Tran, Lan Mai; Kachwaha, Shivani; Menon, Purnima. Article in press

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The COVID-19 pandemic is expected to have profound effects on healthcare systems, but little evidence exists on service provision, utilisation, or adaptations. This study aimed to (1) examine the changes to health and nutrition service delivery and utilisation in urban Bangladesh during and after enforcement of COVID-19 restrictions and (2) identify adaptations and potential solutions to strengthen delivery and uptake. We conducted longitudinal surveys with health care providers (n = 45), pregnant women (n = 40), and mothers of children <2 years (n = 387) in February 2020 (in-person) and September 2020 (by phone). We used Wilcoxon matched-pairs signed-rank tests to compare the changes before and during the pandemic. Services delivery for women and children which require proximity were severely affected; weight and height measurements fell by 20–29 percentage points (pp) for pregnant women and 37–57 pp for children, and child immunisations fell by 38 pp. Declines in service utilisation were large, including drops in facility visitations (35 pp among pregnant women and 67 pp among mothers), health and nutrition counselling (up to 73 pp), child weight measurements (50 pp), and immunisations (61 pp). The primary method of adaptation was provision of services over phone (37% for antenatal care services, 44%–49% for counselling). Despite adaptations to service provision, continued availability of routine maternal and child health services did not translate into service utilisation. Further investments are needed to provide timely and accurate information on COVID-19 to the general public, improve COVID-19 training and provide incentives for health care providers and ensure availability of personal protective equipment for providers and beneficiaries.
Using cognitive interviewing to bridge the intent-interpretation gap for nutrition coverage survey questions in India
Ashok, Sattvika; Kim, Sunny S.; Heidkamp, Rebecca A.; Munos, Melinda K.; Menon, Purnima; Avula, Rasmi. Article in press

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Designing survey questions that clearly and precisely communicate the question's intent and elicit responses based on the intended interpretation is critical but often undervalued. We used cognitive interviewing to qualitatively assess respondents' interpretation of and responses to questions pertaining to maternal and child nutrition intervention coverage. We conducted interviews to cognitively test 25 survey questions with mothers (N = 21) with children less than 1 year in Madhya Pradesh, India. Each question was followed by probes to capture information on four cognitive stages—comprehension, retrieval, judgement, and response. Data were analysed for common and unique patterns across the survey questions. We identified four types of cognitive challenges: (1) retention of multiple concepts in long questions: difficulty in comprehending and retaining questions with three or more key concepts; (2) temporal confusion: difficulty in conceptualizing recall periods such as “in the last 6 months” as compared to life stages such as pregnancy; (3) interpretation of concepts: mismatch of information being asked, meaning of certain terms and intervention scope; and (4) understanding of technical terms: difficulty in understanding commonly used technical words such as “breastfeeding” and “antenatal care” and requiring use of simple alternative language. Findings from this study will be useful for stakeholders involved in survey design and implementation, especially those conducting large-scale household surveys to measure coverage of essential nutrition interventions.
Coherence for nutrition: Insights from nutrition-relevant policies and programs in Burkina Faso and Nigeria
Billings, Lucy; Pradeilles, Rebecca; Gillespie, Stuart; Vanderkooy, Anna; Diatta, Dieynab; Touré, Mariama; Diatta, Ampa Dogui; Verstraeten, Roosmarijn. Article in press

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There is consensus that policy coherence is necessary for implementing effective and sustainable approaches to tackle malnutrition. We look at whether policies and programmes provide a coherent pathway to address nutrition priorities and if programmes are designed to deliver interventions aligned to the nutrition policy agenda in Nigeria and Burkina Faso. A systematic desk review was performed on nutrition-relevant policy and programme documents, obtained through grey literature searches and expert recommendations. We developed a framework with an impact pathway structure that includes five process steps, which was used to guide coding, data reduction and synthesis and structure the analysis. We assessed internal coherence along process steps within a given document and external coherence across process steps for explicitly linked policy/programme pairs. The majority of policies and programmes had partial internal coherence for both countries. The identification of relevant nutrition interventions to address challenges and reach objectives was the strongest connection within policies (16 out of 45 had complete coherence) while among programmes the strongest connection was coverage indicators that measure interventions (9 out of 21 had complete coherence). Eight programmes explicitly referenced at least one nutrition-relevant policy with a total of 16 linked policy/programme pairs (13 pairs for Burkina Faso and 3 for Nigeria) across health, nutrition, agriculture, and social focus areas. However, none of the linked pairs were assessed to have complete external coherence suggesting that priorities at policy level are not fully realised nor translated at programme level. This study offers a new approach for assessment of policy and program coherence and specifically examines policy and program linkages. We conclude that improved leadership on country priority setting and better alignment for nutrition within and across sectors is needed to enhance the effectiveness of nutrition investments.
Economic evaluation of an early childhood development center–based agriculture and nutrition intervention in Malawi
Gelli, Aulo; Kemp, C. G.; Margolies, Amy; Twalibu, Aisha; Katundu, Mangani; Levin, Carol E.. Article in press

Abstract | View

Malnutrition is a leading cause of death and disability among children in low-income countries. Nutrition-sensitive interventions show promise in increasing food access and improving diets. There are possible synergies of integrating these programs with other sectors, improving effectiveness by leveraging resources. However, economic evaluations of these multi-sectoral programs are limited. We aimed to estimate the cost efficiency, cost-effectiveness, benefit-cost ratio, and net benefit of using community-based early childhood development (ECD) centers as platforms for an intervention promoting agricultural production and nutrition among households with young children in Malawi. The intervention was costed using bottom-up micro-costing and top-down expenditure analysis with a societal perspective and a 12-month horizon. Effectiveness estimates were derived from a cluster-randomized control trial. Premature deaths and stunting cases averted were estimated using the Lived Saved Tool. We calculated DALYs averted, and the value of three benefits streams resulting from reductions in premature mortality, increases in lifetime productivity and household agricultural productivity. We transferred the US value of a statistical life (VSL) to Malawi using an income elasticity of 1.5, and a 10% discount rate. Probabilistic sensitivity analysis was conducted using a Monte Carlo model. The intervention cost $197,377, reaching 4,806 beneficiaries at $41 per beneficiary, $595 per case of stunting, $18,310 per death, and $516 per DALY averted. Net benefit estimates ranged from $507,589 to $4,678,258, and benefit-cost ratios from 3.57 to 24.70. Sensitivity analyses confirmed a positive return on investment. Implementing agriculture-nutrition interventions through ECD platforms may be an efficient use of resources in Malawi and similar contexts.
The impact of an integrated value chain intervention on household poultry production in Burkina Faso: Evidence from a randomized controlled trial
Leight, Jessica; Awonon, Josué; Pedehombga, Abdoulaye; Ganaba, Rasmané; Martinez, Elena M.; Heckert, Jessica; Gelli, Aulo. Article in press

The ambivalent links between internal migration and food security in Uganda
Mekonnen, Daniel A.; Soma, Katrine; Ruben, Ruerd. Article in press

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This study examines the drivers for and consequences of internal migration to household food security in Uganda. Based on the Ugandan National Panel Surveys conducted between 2010/11 and 2015/16, we estimate differences in food energy adequacy of households receiving internal migrants from elsewhere. Besides food energy consumption, this study applies household food consumption score (FCS) and looks at vulnerability in terms of household’s expenditures on food. This enables to explore (a) the extent to which food insecurity is driving internal migration, and (b) whether remittances can reduce food security of the remitter. We find that households are usually worse-off when migrants join the receiving family. This seems a departure from previous studies that tend to find welfare gains to internal migration, mostly due to changes in expenditures or dietary consumption without considering any thresholds for achieving food security. Based on these findings and responding to rising youth employment challenges associated with rapidly growing urban slums in Uganda, policies that simultaneously support employment creation in both urban and rural areas are urgently needed to enable better steering of the flow of voluntary migration and to help ensuring food security.
The effectiveness of biosecurity interventions in reducing the transmission of bacteria from livestock to humans at the farm level: A systematic literature review
Youssef, Dina Mohamed; Wieland, Barbara; Knight, Gwenan M.; Lines, Jo; Naylor, Nichola R.. Article in press

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Zoonotic bacterial infections are a health hazard for people who are in regular contact with livestock at the farm level. Improved biosecurity can limit zoonotic pathogen transmission within farms. The aim of this review was to summarize the effectiveness of farm‐level biosecurity interventions in reducing bacterial transmission from animals to people who lived, worked in or visited farms. A systematic literature review was conducted using Embase, Ovid Medline and Agris databases, which were searched on 7th of July 2019, limited to English language papers but with no time exclusion criteria. A narrative synthesis was undertaken utilizing the Centre for Reviews and Dissemination approach, reported in accordance with Preferred Reporting Items for Systematic Reviews and Meta‐Analyses guidelines. Risk of bias within and across the included studies was performed using established checklists. Out of 869 studies retrieved through database searches, 11 studies were selected. In addition, three studies were found through study reference lists. Fourteen studies were therefore included in this review. Biosecurity interventions were grouped into five categories: hand washing, sanitization and hygienic measures (six studies); personal protective equipment (five studies); vaccination (two studies); other interventions (e.g. air ventilation flap) (four studies); and routine farm activities (two studies). Across studies that investigated odds of human colonization or infection (three studies), odds were seen to both be increased and decreased through use of tested biosecurity measures. Large confidence intervals that often crossed the threshold of an odds ratio equal to 1 were found. Most of the studies' overall risk of bias was ‘medium risk’ (11 studies), with selection bias domains generally being scored ‘medium risk.’ Biosecurity interventions are potentially beneficial in reducing bacterial transmission from animals to humans. However, more high‐quality evidence is needed to increase certainty in which interventions, in which contexts, are most effective from the human health perspective.
Can it be all more simple? Manufacturing aflatoxin biocontrol products using dry spores of atoxigenic isolates of Aspergillus flavus as active ingredients
Ortega‐Beltran, Alejandro; Kaptoge, Lawrence; Senghor, Amadou L.; Aikore, Morounranti O. S.; Jarju, Patrick; Momanyi, Henry; Konlambigue, Matieyedou; Falade, Titilayo D. O.; Bandyopadhyay, Ranajit. Article in press

Abstract | View

Aflatoxin contamination of staple crops, commonly occurring in warm areas, negatively impacts human and animal health, and hampers trade and economic development. The fungus Aspergillus flavus is the major aflatoxin producer. However, not all A. flavus genotypes produce aflatoxins. Effective aflatoxin control is achieved using biocontrol products containing spores of atoxigenic A. flavus. In Africa, various biocontrol products under the tradename Aflasafe are available. Private and public sector licensees manufacture Aflasafe using spores freshly produced in laboratories adjacent to their factories. BAMTAARE, the licensee in Senegal, had difficulties to obtain laboratory equipment during its first year of production. To overcome this, a process was developed in Ibadan, Nigeria, for producing high‐quality dry spores. Viability and stability of the dry spores were tested and conformed to set standards. In 2019, BAMTAARE manufactured Aflasafe SN01 using dry spores produced in Ibadan and sent via courier and 19 000 ha of groundnut and maize in Senegal and The Gambia were treated. Biocontrol manufactured with dry spores was as effective as biocontrol manufactured with freshly produced spores. Treated crops contained safe and significantly (P < 0.05) less aflatoxin than untreated crops. The dry spore innovation will make biocontrol manufacturing cost‐efficient in several African countries.
Equity in agriculture-nutrition-health research: A scoping review
Harris, Jody; Tan, Winson; Mitchell, Becky; Zayed, Dina. Article in press

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Links among agriculture, nutrition, and health (ANH) are established, but the role of inequity is less understood. In this scoping review, we aimed to understand the range of ways that ANH research addresses inequity issues in low- and middle-income countries. We used PRISMA guidelines to structure our study. From an initial >26 000 studies, 243 published reports met inclusion criteria and were mapped. The number of reports addressing inequity in ANH research has increased over time from < 10 articles in 2008 to > 40 in 2018. Within equity, a majority of articles (n = 327) focused on describing how nutrition and health outcomes differ for different groups. Many (n = 134) looked at the material circumstances that shape people’s life chances. Fewer (n = 51) looked at the most basic structural determinants of (in)equity. The same aspects of equity remain the least studied in ANH research, including the intersections of equity issues shaping life chances, and inequity’s structural determinants. We suggest ways forward for this community, drawing on conceptual frameworks and theory of inequity from different disciplines.
Iron-biofortified pearl millet consumption increases physical activity in Indian adolescent school children after a 6-month randomized feeding trial
Pompano, Laura M.; Luna, Sarah V.; Ghugre, Padmini S.; Przybyszewski, Eric M.; Haas, Jere D.. Article in press

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Background: Iron deficiency has negative effects on voluntary physical activity (PA); however, the impact of consuming iron-biofortified staple foods on voluntary PA remains unclear. This study compared the effects of consuming iron-biofortified pearl millet or a conventional pearl millet on measures of voluntary PA in Indian school children (ages 12-16 years) during a six-month randomized, controlled feeding trial. PA data were collected from 130 children using Actigraph GT3X accelerometers for six days at baseline and endline. Minutes spent in light and in moderate-to-vigorous PA were calculated from accelerometer counts using Crouter’s refined two-regression model for children. Mixed regression models adjusting for covariates were used to assess relationships between intervention treatment or change in iron status and physical activity. Results: Children who consumed iron-biofortified pearl millet performed 22.3 (95% CI: 1.8, 42.8, p = 0.034) more minutes of light PA each day compared to conventional pearl millet. There was no effect of treatment on moderate-to-vigorous PA. The amount of iron consumed from pearl millet was related to minutes spent in light PA (estimate and 95% CI: 3.4 min/mg iron (0.3 to 6.5, p = 0.031)) and inversely related to daily sedentary minutes (estimate and 95% CI: −5.4 min/mg iron (−9.9 to −0.9, p = 0.020)). Conclusion: Consuming iron-biofortified pearl millet increased light PA and decreased sedentary time in Indian school children in a dose-dependent manner.

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