Suchergebnisse

AbstractConcerns about the growing prevalence of obesity worldwide have led researchers and policy makers to investigate the potential health impact of fiscal policies such as taxes on unhealthy foods. A common instrument used to measure the relationship between food prices and food consumption is the price elasticity of demand. Using meta‐regression analysis we assessed how differences in methodological approaches to estimating demand affected food price elasticities. Most methodological differences had a statistically significant impact on elasticity estimates, which stresses the importance of using meta‐estimates or testing the sensitivity of simulation outcomes to a range of elasticity parameters before drawing policy conclusions.

BACKGROUND: In Ethiopia, 38% of children under 5 years of age are stunted (low height for age). A novel government-led intervention called the Sustainable Undernutrition Reduction in Ethiopia (SURE) aims to tackle the burden of stunting by improving complementary feeding and dietary diversity among young children. The SURE programme design applies a transtheoretical model of behaviour change, whereby exposure to recommended infant and young child feeding (IYCF) and nutrition-sensitive agriculture messages is a first stage to adopting key behaviours. This qualitative study explored the fidelity and dose of the IYCF and nutrition-sensitive agriculture messages delivered by extension workers. METHODS: A qualitative study was conducted across four regions in Ethiopia (Oromiya, Amhara, SNNP and Tigray) between April and October 2017. Across the four regions, 81 key informant interviews, 90 FGDs and 81 observations were conducted with 180 extension workers, 18 development agents and 54 mother-father pairs. Digitally recorded audio files were transcribed verbatim, and the data were analysed based on a framework analysis approach using NVivo (version 12) by coding and categorising texts into major themes and sub-themes. RESULTS: SURE target households had the intended exposure to messages about exclusive breastfeeding, timing of initiation of complementary feeding, food groups, diversified food consumption, irrigation, rearing small animals and vegetables. Few households reported receiving messages on the content or frequency of complementary feeding of a child beyond 6 months of age. Frequency of household visits and hence exposure to SURE messages was also variable. Agricultural messages delivered during household visits focussed on improving standard agricultural practices and rarely covered the importance of nutrition-sensitive agriculture to improve household or child nutrition. CONCLUSION: Despite variability observed in the breadth and depth of messages delivered, large-scale behaviour change communication programmes can achieve moderate to good message exposure among target groups. Qualitative data provide an in-depth insight into fidelity and may supplement our understanding of programme roll-out and implementation. Further research is required to understand longer-term message saturation including frequency and reach.

BACKGROUND: Chile is currently undergoing a period of rapid demographic transition which has led to an increase in the proportion of older people in the population; the proportion aged 60 years and over, for example, increased from 8% of the population in 1980 to 12% in 2005. In an effort to promote healthy ageing and preserve function, the government of Chile has formulated a package of actions into the Programme of Complementary Feeding for the Older Population (PACAM) which has been providing a nutritional supplement to older people since 1998. PACAM distributes micronutrient fortified foods to individuals aged 70 years and over registered at Primary Health Centres and enrolled in the programme. The recommended serving size (50 g/day) of these supplements provides 50% of daily micronutrient requirements and 20% of daily energy requirements of older people. No information is currently available on the cost-effectiveness of the supplementation programme. AIM: The aim of the CENEX cluster randomised controlled trial is to evaluate the cost-effectiveness of an ongoing nutrition supplementation programme, and a specially designed physical exercise intervention for older people of low to medium socio-economic status living in Santiago, Chile. METHODS: The study has been conceptualised as a public health programme effectiveness study and has been designed as a 24-month factorial cluster-randomised controlled trial conducted among 2800 individuals aged 65.0-67.9 years at baseline attending 28 health centres in Santiago. The main outcomes are incidence of pneumonia, walking capacity and change in body mass index over 24 months of intervention. Costing data (user and provider), collected at all levels, will enable the determination of the cost-effectiveness of the two interventions individually and in combination. The study is supported by the Ministry of Health in Chile, which is keen to expand and improve its national programme of nutrition for older people based on sound science-base and evidence for cost-effectiveness. : TRIAL REGISTRATION: ISRCTN48153354.

BACKGROUND: In an effort to promote healthy ageing and preserve health and function, the government of Chile has formulated a package of actions into the Programme for Complementary Food in Older People (Programa de Alimentación Complementaria para el Adulto Mayor - PACAM). The CENEX study was designed to evaluate the impact, cost and cost-effectiveness of the PACAM and a specially designed exercise programme on pneumonia incidence, walking capacity and body mass index in healthy older people living in low- to medium-socio-economic status areas of Santiago. The purpose of this paper is to describe in detail the methods that will be used to estimate the incremental costs and cost-effectiveness of the interventions. METHODS AND DESIGN: The base-case analysis will adopt a societal perspective, including the direct medical and non-medical costs borne by the government and patients. The cost of the interventions will be calculated by the ingredients approach, in which the total quantities of goods and services actually employed in applying the interventions will be estimated, and multiplied by their respective unit prices. Relevant information on costs of interventions will be obtained mainly from administrative records. The costs borne by patients will be collected via exit and telephone interviews. An annual discount rate of 8% will be used, consistent with the rate recommended by the Government of Chile. All costs will be converted from Chilean Peso to US dollars with the 2007 average period exchange rate of US$1 = 522.37 Chilean Peso. To test the robustness of model results, we will vary the assumptions over a plausible range in sensitivity analyses. DISCUSSION: The protocol described here indicates our intent to conduct an economic evaluation alongside the CENEX study. It provides a detailed and transparent statement of planned data collection methods and analyses. TRIAL REGISTRATION: ISRCTN48153354.

India has the highest national freshwater demand globally and 91% of India's freshwater is used in the agriculture sector. Cereals account for over 50% of the dietary water footprint in India and represent a potential opportunity for reducing water use in Indian agriculture. This study combines governmental production and irrigation statistics with crop distribution maps to examine trends in annual water use for cereal production in India between 2005 and 2014. A new online water assessment tool, Cool Farm Tool Water (CFTW), was used to calculate water use and derive seasonal state-level blue and green water footprints for rice, wheat, sorghum, millet and maize. The analysis indicates that India achieved 26.4% increased total cereal production between 2005 and 2014 without additional water or land use. Cereal water footprints have declined due to higher yields for most crops and slightly lower rates of evapotranspiration. There has also been a shift in the area under production away from the Kharif (monsoon) towards the Rabi (dry) season in which total water footprints for all cereals except rice are substantially lower (−33.4% to −45.0% compared to Kharif), but show a significantly higher dependency on ground and surface water. The value of this study is two-fold. First, it provides a full assessment of production trends for the five major cereals in India for each year from 2005 to 2014 and links it to water use. Secondly, it uses updated seasonal water footprints, which demonstrate the potential for changes in cereal production practices to contribute to improved efficiency of water use in India. Future pressures on scarce water resources may encourage transition to cereals with lower irrigation dependency, in particular maize, but also sorghum and millet. In addition, increased emphasis on improving millet and sorghum yields would be of benefit to secure cereal production and reduce its overall water footprint.

India has the highest national freshwater demand globally and 91% of India's freshwater is used in the agriculture sector. Cereals account for over 50% of the dietary water footprint in India and represent a potential opportunity for reducing water use in Indian agriculture. This study combines governmental production and irrigation statistics with crop distribution maps to examine trends in annual water use for cereal production in India between 2005 and 2014. A new online water assessment tool, Cool Farm Tool Water (CFTW), was used to calculate water use and derive seasonal state-level blue and green water footprints for rice, wheat, sorghum, millet and maize. The analysis indicates that India achieved 26.4% increased total cereal production between 2005 and 2014 without additional water or land use. Cereal water footprints have declined due to higher yields for most crops and slightly lower rates of evapotranspiration. There has also been a shift in the area under production away from the Kharif (monsoon) towards the Rabi (dry) season in which total water footprints for all cereals except rice are substantially lower (-33.4% to -45.0% compared to Kharif), but show a significantly higher dependency on ground and surface water. The value of this study is two-fold. First, it provides a full assessment of production trends for the five major cereals in India for each year from 2005 to 2014 and links it to water use. Secondly, it uses updated seasonal water footprints, which demonstrate the potential for changes in cereal production practices to contribute to improved efficiency of water use in India. Future pressures on scarce water resources may encourage transition to cereals with lower irrigation dependency, in particular maize, but also sorghum and millet. In addition, increased emphasis on improving millet and sorghum yields would be of benefit to secure cereal production and reduce its overall water footprint.

OBJECTIVES: To assess the health impacts and environmental consequences of adherence to national dietary recommendations (the Eatwell Guide (EWG)) in the UK. DESIGN AND SETTING: A secondary analysis of multiple observational studies in the UK. PARTICIPANTS: Adults from the European Prospective Investigation into Cancer - Oxford(EPIC-Oxford), UK Biobank and Million Women Study, and adults and children aged 5 and over from the National Diet and Nutrition Survey (NDNS). Primary and secondary outcome measures risk of total mortality from Cox proportional hazards regression models, total greenhouse gas emissions (GHGe) and blue water footprint (WF) associated with 'very low' (0–2 recommendations), 'low' (3–4 recommendations) or 'intermediate-to-high' (5–9 recommendations) adherence to EWG recommendations. RESULTS: Less than 0.1% of the NDNS sample adhere to all nine EWG recommendations and 30.6% adhere to at least five recommendations. Compared with 'very low' adherence to EWG recommendations, 'intermediate-to-high adherence' was associated with a reduced risk of mortality (risk ratio (RR): 0.93; 99% CI: 0.90 to 0.97) and −1.6 kg CO(2)eq/day (95% CI: −1.5 to −1.8), or 30% lower dietary GHGe. Dietary WFs were similar across EWG adherence groups. Of the individual Eatwell guidelines, adherence to the recommendation on fruit and vegetable consumption was associated with the largest reduction in total mortality risk: an RR of 0.90 (99% CI: 0.88 to 0.93). Increased adherence to the recommendation on red and processed meat consumption was associated with the largest decrease in environmental footprints (−1.48 kg CO(2)eq/day, 95% CI: −1.79 to 1.18 for GHGe and −22.5 L/day, 95% CI: −22.7 to 22.3 for blue WF). CONCLUSIONS: The health and environmental benefits of greater adherence to EWG recommendations support increased government efforts to encourage improved diets in the UK that are essential for the health of people and the planet in the Anthropocene.

OBJECTIVES: To assess the health impacts and environmental consequences of adherence to national dietary recommendations (the Eatwell Guide (EWG)) in the UK. DESIGN AND SETTING: A secondary analysis of multiple observational studies in the UK. PARTICIPANTS: Adults from the European Prospective Investigation into Cancer - Oxford(EPIC-Oxford), UK Biobank and Million Women Study, and adults and children aged 5 and over from the National Diet and Nutrition Survey (NDNS).Primary and secondary outcome measures risk of total mortality from Cox proportional hazards regression models, total greenhouse gas emissions (GHGe) and blue water footprint (WF) associated with 'very low' (0-2 recommendations), 'low' (3-4 recommendations) or 'intermediate-to-high' (5-9 recommendations) adherence to EWG recommendations. RESULTS: Less than 0.1% of the NDNS sample adhere to all nine EWG recommendations and 30.6% adhere to at least five recommendations. Compared with 'very low' adherence to EWG recommendations, 'intermediate-to-high adherence' was associated with a reduced risk of mortality (risk ratio (RR): 0.93; 99% CI: 0.90 to 0.97) and -1.6 kg CO2eq/day (95% CI: -1.5 to -1.8), or 30% lower dietary GHGe. Dietary WFs were similar across EWG adherence groups. Of the individual Eatwell guidelines, adherence to the recommendation on fruit and vegetable consumption was associated with the largest reduction in total mortality risk: an RR of 0.90 (99% CI: 0.88 to 0.93). Increased adherence to the recommendation on red and processed meat consumption was associated with the largest decrease in environmental footprints (-1.48 kg CO2eq/day, 95% CI: -1.79 to 1.18 for GHGe and -22.5 L/day, 95% CI: -22.7 to 22.3 for blue WF). CONCLUSIONS: The health and environmental benefits of greater adherence to EWG recommendations support increased government efforts to encourage improved diets in the UK that are essential for the health of people and the planet in the Anthropocene.

INTRODUCTION: Improving complementary feeding in Ethiopia requires special focus on dietary diversity. The Sustainable Undernutrition Reduction in Ethiopia (SURE) programme is a government-led multisectoral intervention that aims to integrate the work of the health and agriculture sectors to deliver a complex multicomponent intervention to improve child feeding and reduce stunting. The Federal Ministries of Health and Agriculture and Natural Resources implement the intervention. The evaluation aims to assess a range of processes, outcomes and impacts. METHODS AND ANALYSIS: The SURE evaluation study is a theory-based, mixed methods study comprising impact and process evaluations. We hypothesise that the package of SURE interventions, including integrated health and agriculture behaviour change communication for nutrition, systems strengthening and multisectoral coordination, will result in detectable differences in minimum acceptable diet in children 6-23 months and stunting in children 24-47 months between intervention and comparison groups. Repeated cross-sectional household surveys will be conducted at baseline and endline to assess impact. The process will be assessed using observations, key informant interviews and focus group discussions to investigate the fidelity and dose of programme implementation, behavioural pathways of impact and contextual factors interacting with the intervention. Pathways of impact will also be explored through statistical analyses. ETHICS AND DISSEMINATION: The study has received ethics approval from the scientific and ethical review committees at the Ethiopian Public Health Institute and the London School of Hygiene and Tropical Medicine. The findings will be disseminated collaboratively with stakeholders at specified time points and through peer-reviewed publications and presentations.

Background: In Ethiopia, poor infant and young child feeding practices and low household dietary diversity remain widespread. The Government has adopted the National Nutrition Programme that emphasizes the need for multi-sectoral collaboration to effectively deliver nutrition-sensitive and nutrition-specific interventions. The Sustainable Undernutrition Reduction in Ethiopia (SURE) programme is one such Government-led initiative that will be implemented jointly by the health and agriculture sectors across 150 districts in Ethiopia. Prior to the design of the SURE programme, this formative research study was conducted to understand how the governance structure and linkages between health and agriculture sectors at local levels can support implementation of programme activities. Methods: Data were collected from eight districts in Ethiopia using 16 key informant interviews and eight focus group discussions conducted with district and community-level focal persons for nutrition including health and agriculture extension workers. A framework analysis approach was used to analyze data. Results: Few respondents were aware of the National Nutrition Programme or of their own roles within the multi-sectoral coordination mechanism outlined by the government to deliver nutritional programmes and services. Lack of knowledge or commitment to nutrition, lack of resources and presence of competing priorities within individual sectors were identified as barriers to effective coordination between health and agriculture sectors. Strong central commitment to nutrition, increased involvement of other partners in nutrition and the presence of community development workers such as health and agriculture extension workers were identified as facilitators of effective coordination. Conclusions: Federal guidelines to implement the Ethiopian National Nutrition Programme have yet to be translated to district or community level administrative structures. Sustained political commitment and provision of resources will be necessary to achieve effective inter-sectoral collaboration to deliver nutritional services. The health and agriculture extension platforms may be used to link interventions for sustained nutrition impact.

BACKGROUND: In Ethiopia, poor infant and young child feeding practices and low household dietary diversity remain widespread. The Government has adopted the National Nutrition Programme that emphasizes the need for multi-sectoral collaboration to effectively deliver nutrition-sensitive and nutrition-specific interventions. The Sustainable Undernutrition Reduction in Ethiopia (SURE) programme is one such Government-led initiative that will be implemented jointly by the health and agriculture sectors across 150 districts in Ethiopia. Prior to the design of the SURE programme, this formative research study was conducted to understand how the governance structure and linkages between health and agriculture sectors at local levels can support implementation of programme activities. METHODS: Data were collected from eight districts in Ethiopia using 16 key informant interviews and eight focus group discussions conducted with district and community-level focal persons for nutrition including health and agriculture extension workers. A framework analysis approach was used to analyze data. RESULTS: Few respondents were aware of the National Nutrition Programme or of their own roles within the multi-sectoral coordination mechanism outlined by the government to deliver nutritional programmes and services. Lack of knowledge or commitment to nutrition, lack of resources and presence of competing priorities within individual sectors were identified as barriers to effective coordination between health and agriculture sectors. Strong central commitment to nutrition, increased involvement of other partners in nutrition and the presence of community development workers such as health and agriculture extension workers were identified as facilitators of effective coordination. CONCLUSIONS: Federal guidelines to implement the Ethiopian National Nutrition Programme have yet to be translated to district or community level administrative structures. Sustained political commitment and provision of resources will be necessary to achieve effective inter-sectoral collaboration to deliver nutritional services. The health and agriculture extension platforms may be used to link interventions for sustained nutrition impact.