scholarly journals Why the Derivation of Nutrient Reference Values Should be Harmonized and How It Can be Accomplished

2020 ◽  
Vol 11 (5) ◽  
pp. 1102-1107
Author(s):  
Ann L Yaktine ◽  
Janet C King ◽  
Lindsay H Allen
Keyword(s):  
Reference Values ◽  
Low Income ◽  
Population Level ◽  
Nutrient Loss ◽  
Nutrition Support ◽  
Metabolic Markers ◽  
Bias Assessment ◽  
Nutrient Reference Values ◽  
Context Specific ◽  
Fractional Absorption

ABSTRACT The adoption of a panel of Nutrient Reference Values (NRVs) in place of a single recommended intake allowed for assessment of nutritional adequacy and safe upper intake levels for nutrients on a population level and for individuals. The Average Requirement (AR) and Tolerable Upper Intake Level (UL) comprise 2 core NRVs needed to obtain accurate, comparable estimates of population-level nutrient intakes, which are necessary to plan and evaluate nutrition support programs globally. Harmonizing the derivation of NRVs, particularly the AR and UL, is essential to ensure inclusion of all countries, whether high-, middle-, or low-income, in the process and to improve access for all users to the tools and data needed to carry it out. The NRV process today is more rigorous and transparent than the first derivation of DRIs because of adoption of systematic reviews and bias assessment methodologies, updated food and nutrient databases, data on cultural and context-specific dietary patterns, and better metabolic markers of nutritional status. A proposed framework for the derivation of NRVs builds on available methodologies to support the NRV process; however, this is not sufficient to achieve harmonization of the process. Fundamental to moving forward toward harmonization is removing existing barriers, including limited access to resources and databases and variance in terminology used to identify specific NRVs; adoption of more rigorous and transparent methodologies, including chronic disease endpoints, in the review process; and creating a central repository for easily accessible evidence. Chief among the barriers to harmonization is a willingness of global bodies to support an agreed-upon approach to the derivation process. Improving access to tools and data resources and providing guidance and support to encourage their adoption are critical to achieving harmonization of the NRV process. The factorial approach for calculating a nutrient requirement is described as the sum of total endogenous nutrient loss (endogenous fecal, urinary, integumental, seminal, menstrual) divided by its bioavailability or fractional absorption.

SUSTAINING FAMILY ROUTINES AFTER TRANSITIONING INTO PARENTHOOD: COUPLES’ PERCEPTIONS OF ASSISTING FACTORS

2016 ◽  
Vol 28 (1) ◽  
pp. 3-17
Author(s):  
Christine De Goede ◽  
Abraham P Greeff
Keyword(s):  
Low Income ◽  
Transition To Parenthood ◽  
Specific Problem ◽  
Family Members ◽  
Major Theme ◽  
Structured Interviews ◽  
Theory Analysis ◽  
Family Routines ◽  
Temporal Complexity ◽  
Context Specific

The aim of this qualitative study was to explore what assists couples in sustaining family routines after the transition to parenthood. Participants were recruited from two day-care centres in Cape Town, South Africa. In-depth, semi-structured interviews were conducted with 10 couples, mostly from low-income households, who had gone through this transition between one and four years previously. Grounded theory analysis revealed one major theme, Factors that decrease task and temporal complexity, with seven subthemes: Support from the wider family network; Couple cooperation and tag-teaming; Planning and pre-empting future problems; Adhering to schedules; Facilitative characteristics and skills of individual family members; Parents’ sense of commitment and responsibility towards family members; and idiosyncratic accommodations. Results underscore the need for professionals to help parents gain support from relatives; strengthen partner teamwork; foster schedule consistency; improve skills such as planning; foster their caretaker self-concepts; and facilitate context-specific problem-solving.

scholarly journals Fatal drowning in the Western Cape, South Africa: a 7-year retrospective, epidemiological study

2018 ◽  
Vol 25 (6) ◽  
pp. 529-534 ◽  
Author(s):  
Colleen Jayne Saunders ◽  
Robyn Adriaanse ◽  
Abigail Simons ◽  
Ashley van Niekerk
Keyword(s):  
South Africa ◽  
Young Adult ◽  
Low Income ◽  
Western Cape ◽  
Middle Income ◽  
Registration System ◽  
Drowning Prevention ◽  
Adult Men ◽  
Context Specific ◽  
Public Holidays

IntroductionDrowning is a neglected public health threat in low-income and middle-income countries where the greatest drowning burden is observed. There is a paucity of drowning surveillance data from low-resource settings, particularly in Africa. Understanding local epidemiological factors will enable the development of context-specific drowning prevention initiatives and the appropriate allocation of resources.AimThe primary aim of this study was to describe the epidemiology of fatal drowning in the Western Cape, South Africa.MethodThis retrospective study describes fatal drowning incidents captured in the Western Cape vital registration system between 2010 and 2016. Data were obtained from the Forensic Pathology Services of the Western Cape Government. One-way analysis of variance was performed to detect a trend in mean drowning mortality rates between 2010 and 2016. χ2 tests for independence were performed to detect differences in the distribution of variables between groups.ResultsA total of 1391 fatal drownings occurred in the Western Cape between 2010 and 2016, with an age-adjusted drowning mortality rate of 3.2 per 100 000 population. Rates were fourfold higher in men compared with women. Children, particularly young children aged 0–4 years, and young adult men between 20 and 34 years of age were identified to be at high risk of fatal drowning. Drowning occurred predominantly in large, open bodies of water with concentrations in summer and public holidays.ConclusionsThe Western Cape drowning prevention strategy should prioritise interventions to reduce drowning in children and young adult men, with a targeted focus on festive periods such as public holidays.

Scientific Principles on the Revision and Addition of the Codex Nutrient Reference Values for Food Labelling Purposes

2009 ◽  
Vol 42 (2) ◽  
pp. 183
Author(s):  
Namsoo Chang ◽  
Youn-Ok Cho ◽  
Hyojee Joung ◽  
Haerang Chung ◽  
Hye-Young P. Kim ◽  
...  
Keyword(s):  
Reference Values ◽  
Food Labelling ◽  
Scientific Principles ◽  
Nutrient Reference Values

scholarly journals Job morale of physicians in low-income and middle-income countries: a systematic literature review of qualitative studies

BMJ Open ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. e028657 ◽  
Author(s):  
Alina Sabitova ◽  
Sana Zehra Sajun ◽  
Sandra Nicholson ◽  
Franziska Mosler ◽  
Stefan Priebe
Keyword(s):  
Low Income ◽  
Grey Literature ◽  
Well Being ◽  
Analytical Framework ◽  
Working Environment ◽  
Reference List ◽  
Middle Income ◽  
Staff Shortage ◽  
Middle Income Countries ◽  
Context Specific

ObjectivesTo systematically review the available literature on physicians’ and dentists’ experiences influencing job motivation, job satisfaction, burnout, well-being and symptoms of depression as indicators of job morale in low-income and middle-income countries.DesignThe review was reported following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines for studies evaluating outcomes of interest using qualitative methods. The framework method was used to analyse and integrate review findings.Data sourcesA primary search of electronic databases was performed by using a combination of search terms related to the following areas of interest: ‘morale’, ‘physicians and dentists’ and ‘low-income and middle-income countries’. A secondary search of the grey literature was conducted in addition to checking the reference list of included studies and review papers.ResultsTen papers representing 10 different studies and involving 581 participants across seven low-income and middle-income countries met the inclusion criteria for the review. However, none of the studies focused on dentists’ experiences was included. An analytical framework including four main categories was developed: work environment (physical and social), rewards (financial, non-financial and social respect), work content (workload, nature of work, job security/stability and safety), managerial context (staffing levels, protocols and guidelines consistency and political interference). The job morale of physicians working in low-income and middle-income countries was mainly influenced by negative experiences. Increasing salaries, offering opportunities for career and professional development, improving the physical and social working environment, implementing clear professional guidelines and protocols and tackling healthcare staff shortage may influence physicians’ job morale positively.ConclusionsThere were a limited number of studies and a great degree of heterogeneity of evidence. Further research is recommended to assist in scrutinising context-specific issues and ways of addressing them to maximise their utility.PROSPERO registration numberCRD42017082579.

scholarly journals Harmonizing Micronutrient Intake Reference Ranges for Dietary Guidance and Menu Planning in Complementary Feeding

2020 ◽  
Vol 4 (3) ◽  
Author(s):  
Lynda M O'Neill ◽  
Johanna T Dwyer ◽  
Regan L Bailey ◽  
Kathleen C Reidy ◽  
Jose M Saavedra
Keyword(s):  
Reference Values ◽  
Complementary Feeding ◽  
Reference Ranges ◽  
Institute Of Medicine ◽  
Feeding Period ◽  
Menu Planning ◽  
Food Standards ◽  
Micronutrient Intake ◽  
Calcium Magnesium ◽  
Nutrient Reference Values

ABSTRACT There are no published harmonized nutrient reference values for the complementary feeding period. The aim of the study was to develop proposals on adequate and safe intake ranges of micronutrients that can be applied to dietary guidance and menu planning. Dietary intake surveys from 6 populous countries were selected as pertinent to the study and reviewed for data on micronutrients. The most frequently underconsumed micronutrients were identified as iron, zinc, calcium, magnesium, phosphorus, potassium, and vitamins A, B6, B12, C, D, E, and folate. Key published reference values for these micronutrients were identified, compared, and reconciled. WHO/FAO values were generally identified as initial nutrient targets and reconciled with nutrient reference values from the Institute of Medicine and the European Food Standards Authority. A final set of harmonized reference nutrient intake ranges for the complementary feeding period is proposed.

scholarly journals Prognostic models for predicting in-hospital paediatric mortality in resource-limited countries: a systematic review

BMJ Open ◽  
2020 ◽  
Vol 10 (10) ◽  
pp. e035045
Author(s):  
Morris Ogero ◽  
Rachel Jelagat Sarguta ◽  
Lucas Malla ◽  
Jalemba Aluvaala ◽  
Ambrose Agweyu ◽  
...  
Keyword(s):  
Systematic Review ◽  
Low Income ◽  
Assessment Tool ◽  
Data Extraction ◽  
Model Development ◽  
Risk Of Bias ◽  
Prognostic Models ◽  
Risk Scores ◽  
Eligibility Criteria ◽  
Bias Assessment

ObjectivesTo identify and appraise the methodological rigour of multivariable prognostic models predicting in-hospital paediatric mortality in low-income and middle-income countries (LMICs).DesignSystematic review of peer-reviewed journals.Data sourcesMEDLINE, CINAHL, Google Scholar and Web of Science electronic databases since inception to August 2019.Eligibility criteriaWe included model development studies predicting in-hospital paediatric mortality in LMIC.Data extraction and synthesisThis systematic review followed the Checklist for critical Appraisal and data extraction for systematic Reviews of prediction Modelling Studies framework. The risk of bias assessment was conducted using Prediction model Risk of Bias Assessment Tool (PROBAST). No quantitative summary was conducted due to substantial heterogeneity that was observed after assessing the studies included.ResultsOur search strategy identified a total of 4054 unique articles. Among these, 3545 articles were excluded after review of titles and abstracts as they covered non-relevant topics. Full texts of 509 articles were screened for eligibility, of which 15 studies reporting 21 models met the eligibility criteria. Based on the PROBAST tool, risk of bias was assessed in four domains; participant, predictors, outcome and analyses. The domain of statistical analyses was the main area of concern where none of the included models was judged to be of low risk of bias.ConclusionThis review identified 21 models predicting in-hospital paediatric mortality in LMIC. However, most reports characterising these models are of poor quality when judged against recent reporting standards due to a high risk of bias. Future studies should adhere to standardised methodological criteria and progress from identifying new risk scores to validating or adapting existing scores.PROSPERO registration numberCRD42018088599.

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