DOHaD in low- and middle-income countries: a systematic review exploring gaps in DOHaD population studies

2020 ◽  
Vol 11 (6) ◽  
pp. 557-563
Author(s):  
Siobhan Tu’akoi ◽  
Mark H. Vickers ◽  
Jacquie L. Bay

AbstractLow- and middle-income countries (LMICs) are disproportionately affected by non-communicable diseases (NCDs), accounting for more than 80% of NCD-related deaths globally. Research into early-life influences on these diseases via the developmental origins of health and disease (DOHaD) paradigm has informed health promotion interventions and policies focused on optimising early-life health. However, little is known about where this research occurs and whether it reaches and reflects the countries most affected by NCDs. This review searched for DOHaD studies that investigated relationships between factors during pregnancy and at birth, with later-life NCD incidence, risk and related mortality. The aim of this review was to identify where DOHaD research has been conducted and whether this focus is appropriate and relevant, given the differential burden of NCDs. Embase, MEDLINE and Scopus were searched, and eligibility screening processes identified 136 final articles. This review found that 49.7% of DOHaD research was conducted on populations within Western Europe, 15.9% in East Asia, 12.7% in North America, 8.3% in Latin America and the Caribbean, and fewer in Australasia, South Asia, the Middle East, the Africas, and Central Asia. When categorised by income, this review found that 76.4% of studies were based in high-income countries, 19.1% in upper-middle-income and 4.5% in lower-middle-income countries. No studies were based in low-income countries. There is therefore a marked disconnect between where DOHaD research is undertaken and where the greatest NCD disease burden exists. Increasing DOHaD research capacity in LMICs is crucial to informing local strategies that can contribute to reducing the incidence of NCDs.

Author(s):  
Brendon Stubbs ◽  
Kamran Siddiqi ◽  
Helen Elsey ◽  
Najma Siddiqi ◽  
Ruimin Ma ◽  
...  

Tuberculosis (TB) is a leading cause of mortality in low- and middle-income countries (LMICs). TB multimorbidity [TB and ≥1 non-communicable diseases (NCDs)] is common, but studies are sparse. Cross-sectional, community-based data including adults from 21 low-income countries and 27 middle-income countries were utilized from the World Health Survey. Associations between 9 NCDs and TB were assessed with multivariable logistic regression analysis. Years lived with disability (YLDs) were calculated using disability weights provided by the 2017 Global Burden of Disease Study. Eight out of 9 NCDs (all except visual impairment) were associated with TB (odds ratio (OR) ranging from 1.38–4.0). Prevalence of self-reported TB increased linearly with increasing numbers of NCDs. Compared to those with no NCDs, those who had 1, 2, 3, 4, and ≥5 NCDs had 2.61 (95% confidence interval (CI) = 2.14–3.22), 4.71 (95%CI = 3.67–6.11), 6.96 (95%CI = 4.95–9.87), 10.59 (95%CI = 7.10–15.80), and 19.89 (95%CI = 11.13–35.52) times higher odds for TB. Among those with TB, the most prevalent combinations of NCDs were angina and depression, followed by angina and arthritis. For people with TB, the YLDs were three times higher than in people without multimorbidity or TB, and a third of the YLDs were attributable to NCDs. Urgent research to understand, prevent and manage NCDs in people with TB in LMICs is needed.


2010 ◽  
Vol 2010 ◽  
pp. 1-5 ◽  
Author(s):  
Arafat Tfayli ◽  
Sally Temraz ◽  
Rachel Abou Mrad ◽  
Ali Shamseddine

Breast cancer is a major health care problem that affects more than one million women yearly. While it is traditionally thought of as a disease of the industrialized world, around 45% of breast cancer cases and 55% of breast cancer deaths occur in low and middle income countries. Managing breast cancer in low income countries poses a different set of challenges including access to screening, stage at presentation, adequacy of management and availability of therapeutic interventions. In this paper, we will review the challenges faced in the management of breast cancer in low and middle income countries.


2019 ◽  
Vol 50 (1) ◽  
pp. 43-49 ◽  
Author(s):  
Rob Mooij ◽  
Esther MJ Jurgens ◽  
Jeroen van Dillen ◽  
Jelle Stekelenburg

Results from medical research from high-income countries may not apply to low- and middle-income countries. Some expatriate physicians combine clinical duties with research. We present global health research conducted by Dutch medical doctors in Global Health and Tropical Medicine in low- and middle-income countries and explore the value of their research. We included all research conducted in the last 30 years by medical doctors in Global Health and Tropical Medicine in a low- and middle-income country, resulting in a PhD thesis. Articles and co-authors were found through Medline. More than half of the 18 identified PhD theses concerned maternal health and obstetrics, and the majority of the research was conducted in low-income countries, mostly in rural hospitals. Over 70 local co-authors were involved. Different aspects of these studies are discussed.


2019 ◽  
Vol 49 (4) ◽  
pp. 705-723 ◽  
Author(s):  
KEETIE ROELEN

AbstractDespite the centrality of shame and stigma within research on welfare in high-income countries, these issues only exist within the periphery of rapidly expanding practice in and research on social assistance in low- and middle-income countries. This oversight undermines social assistance’s potential in breaking the poverty-shame cycle and ignores its role in the (re)production of shame and stigma. This article offers a critical exploration of the role of social assistance in alleviating or reinforcing shame and stigma in low- and middle-income countries. Findings indicate that positive and negative effects co-exist but that far too little evidence is available to judge whether social assistance receipt overwhelmingly negates or plays into shame and stigma, particularly in low-income countries. Greater awareness of the interface between social assistance, shame and stigma, explorations of policy options that minimise or counter stigmatisation, and critical engagement with ideological and political discourse underpinning design and delivery of interventions represent crucial steps to move towards ‘shame proofing’ social assistance in low- and middle-income countries.


2016 ◽  
Vol 40 (6) ◽  
pp. 536-543 ◽  
Author(s):  
Theodore D. Wachs ◽  
Santiago Cueto ◽  
Haogen Yao

Studies from both high and low-middle income (LAMI) countries have documented how being reared in poverty is linked to compromised child development. Links between poverty and development are mediated by the timing and extent of exposure to both risk factors nested under poverty and to protective influences which can attenuate the impact of risk. While children from high-, middle-, and low-income countries are exposed to similar types of developmental risks, children from low- and middle-income countries are exposed to a greater number, more varied and more intense risks. Given these contextual differences, cumulative risk models may provide a better fit than mediated models for understanding the nature of pathways linking economic insufficiency and developmental inequality in low- and middle-income countries, and for designing interventions to promote development of children from these countries. New evidence from a large scale UNICEF data set illustrates the application of a cumulative risk/protective perspective in low- and middle-income countries.


2016 ◽  
Vol 58 (4) ◽  
pp. 442-448 ◽  
Author(s):  
Steven Meyer ◽  
Willem A Groenewald ◽  
Richard D Pitcher

Background In 1996 the International Commission on Radiological Protection (ICRP) introduced diagnostic reference levels (DRLs) as a quality assurance tool for radiation dose optimization. While many countries have published DRLs, available data are largely from high-income countries. There is arguably a greater need for DRLs in low- and middle-income-countries (LMICs), where imaging equipment may be older and trained imaging technicians are scarce. To date, there has been no critical analysis of the published work on DRLs in LMICs. Such work is important to evaluate data deficiencies and stimulate future quality assurance initiatives. Purpose To review the published work on DRLs in LMICs and to critically analyze the comprehensiveness of available data. Material and Methods Medline, Scopus, and Web of Science database searches were conducted for English-language articles published between 1996 and 2015 documenting DRLs for diagnostic imaging in LMICs. Retrieved articles were analyzed and classified by geographical region, country of origin, contributing author, year of publication, imaging modality, body part, and patient age. Results Fifty-three articles reported DRLs for 28 of 135 LMICs (21%), reflecting data from 26/104 (25%) middle-income countries and 2/31 (6%) low-income countries. General radiography (n = 26, 49%) and computerized tomography (n = 17, 32%) data were most commonly reported. Pediatric DRLs (n = 14, 26%) constituted approximately one-quarter of published work. Conclusion Published DRL data are deficient in the majority of LMICs, with the paucity most striking in low-income countries. DRL initiatives are required in LMICs to enhance dose optimization.


2021 ◽  
Vol 20 (1) ◽  
Author(s):  
Zhihui Li ◽  
Omar Karlsson ◽  
Rockli Kim ◽  
S. V. Subramanian

Abstract Background As under-5 mortality rates declined all over the world, the relative distribution of under-5 deaths during different periods of life changed. To provide information for policymakers to plan for multi-layer health strategies targeting child health, it is essential to quantify the distribution of under-5 deaths by age groups. Methods Using 245 Demographic and Health Surveys from 64 low- and middle-income countries conducted between 1986 and 2018, we compiled a database of 2,437,718 children under-5 years old with 173,493 deaths. We examined the share of deaths that occurred in the neonatal (< 1 month), postneonatal (1 month to 1 year old), and childhood (1 to 5 years old) periods to the total number of under-5 deaths at both aggregate- and country-level. We estimated the annual change in share of deaths to track the changes over time. We also assessed the association between share of deaths and Gross Domestic Product (GDP) per capita. Results Neonatal deaths accounted for 53.1% (95% confidence interval [CI]: 52.7, 53.4) of the total under-5 deaths. The neonatal share of deaths was lower in low-income countries at 44.0% (43.5, 44.5), and higher in lower-middle-income and upper-middle income countries at 57.2% (56.8, 57.6) and 54.7% (53.8, 55.5) respectively. There was substantial heterogeneity in share of deaths across countries; for example, the share of neonatal to total under-5 deaths ranged from 20.9% (14.1, 27.6) in Eswatini to 82.8% (73.0, 92.6) in Dominican Republic. The shares of deaths in all three periods were significantly associated with GDP per capita, but in different directions—as GDP per capita increased by 10%, the neonatal share of deaths would significantly increase by 0.78 percentage points [PPs] (0.43, 1.13), and the postneonatal and childhood shares of deaths would significantly decrease by 0.29 PPs (0.04, 0.54) and 0.49 PPs (0.24, 0.74) respectively. Conclusions Along with the countries’ economic development, an increasing proportion of under-5 deaths occurs in the neonatal period, suggesting a need for multi-layer health strategies with potentially heavier investment in newborn health.


Author(s):  
Charis Bridger Staatz ◽  
Yvonne Kelly ◽  
Rebecca E. Lacey ◽  
Joanna M. Blodgett ◽  
Anitha George ◽  
...  

Abstract Background The relation between socioeconomic position (SEP) and obesity measured by body mass index (BMI), a measure of weight for height, has been extensively reviewed in children, showing consistent associations between disadvantaged SEP and higher BMI in high-income countries (HICs) and lower BMI in middle-income countries (MICs). Fat mass (FM), a more accurate measure of adiposity, and fat-free mass (FFM) are not captured by BMI, but have been shown to track from childhood to adulthood, and be important for cardiovascular health and functional outcomes in later life. It is not clear whether body composition is associated with SEP. We systematically reviewed the association between SEP and body composition in childhood. Methods A systematic review was carried out following PRISMA guidelines. The protocol was pre-registered with PROSPERO (CRD42019119937). Original studies in the English language, which examined the association between SEP and body composition in childhood, were included. An electronic search of three databases was conducted. Two independent reviewers carried out screening, data extraction and quality assessment. Due to heterogeneity in results, a narrative synthesis was conducted. Heterogeneity in findings according to SEP, sex, body composition measure and country income level was investigated. Results 50 papers were included, the majority from HICs. No papers were from low-income countries. Disadvantage in childhood was associated with greater FM and lower FFM in HICs, but with lower FM and lower FFM in MICs. When measures of FFM indexed to height were used there was no evidence of associations with SEP. In HICs, more studies reported associations between disadvantaged SEP and higher FM among girls comparative to boys. Conclusions Inequalities in FM are evident in HICs and, in the opposite direction, in MICs and follow similar trends to inequalities for BMI. Inequalities in height are likely important in understanding inequalities in FFM.


2020 ◽  
Author(s):  
Katie Kelshaw

The presence of organized crime is common across all income levels, but the effects of organized crime differ between low-income and middle-income countries. Institutionally, socially, and economically, criminal organizations make contributions which affect the states they are in. This paper theorizes that the contributions made by organized crime help development in low-income countries, then later harms development in middle-income countries. Empirical tests find that the direct effects of organized crime are not significant in low and middle-income countries. The indirect effects of organized crime - corruption in the public sector — have a negative effect on development.


2021 ◽  
Vol 6 (8) ◽  

Background: Accessibility to healthcare is the capability of a population to obtain a specified set of healthcare services. There is a direct link between the distance patients travel to access health and the reduction of ill health and suffering in a country. This has an important impact on the quality of life of people. Objective: To find the spatial or geographic determinants of accessibility of primary healthcare provision in low and middle income countries during last two decades. Methods: Systematic review was done according to PRISMA guidelines. Data bases used were Google scholar, PubMed and Science direct. We found ten different studies from eight different economic groups of countries. Accessibility of primary healthcare in low and middle Income countries published during the period of last two decades were included using the key words like Spatial Accessibility;Geographical Accessibility; Primary Health Care; Primary Care; Low and middle income countries. The countries included were Afghanistan, Bangladesh, Bhutan, Democratic Republic of Congo, India, Indonesia, Sudan, Mozambique /Rural Africa. Two studies each from India and Mozambique (Rural Africa) were included. The categorization as low and middle income counties was as per World Bank classification. Results: We found that accessibility to primary healthcare was worse in low income countries like Afghanistan, Mozambique and South Sudan where more than two third of the population lived in underserved or difficult to access areas while rest of the countries, which come under category of lower middle income countries, more than half of the population lived in underserved or difficult to access areas.] Conclusion: Health care ease of access is a single most important component for equitable and adequate health system. Guaranteeing a healthcare system which is easily accessible to the people is a basic consideration for public health policy makers, policy implementers and academicians.


Sign in / Sign up

Export Citation Format

Share Document