167 research outputs found
Scoping Study on Current Situation and Future Market Outlook of Groundnut in Ethiopia, Socioeconomics Discussion Paper Series 38
Groundnuts are becoming increasingly important in Ethiopian agriculture and domestic demand has been on a steady increase. Starting from a literature review of the limited material available a survey of value chain actors was conducted and potential areas of groundnut expansion have been identified using GIS. Giving a comprehensive overview of the sector and the past trends in area and production across the country, this paper highlights current challenges and future prospects of the Ethiopian groundnut sector and identifies entry points for interventions to increase its competitiveness
Initial findings from a novel population-based child mortality surveillance approach: a descriptive study.
--- - Label: BACKGROUND NlmCategory: BACKGROUND content:
"Sub-Saharan Africa and south Asia contributed 81% of 5\xC2\xB79
million under-5 deaths and 77% of 2\xC2\xB76 million stillbirths
worldwide in 2015. Vital registration and verbal autopsy data
are mainstays for the estimation of leading causes of death, but
both are non-specific and focus on a single underlying cause. We
aimed to provide granular data on the contributory causes of
death in stillborn fetuses and in deceased neonates and children
younger than 5 years, to inform child mortality prevention
efforts." - Label: METHODS NlmCategory: METHODS content: "The
Child Health and Mortality Prevention Surveillance (CHAMPS)
Network was established at sites in seven countries (Baliakandi,
Bangladesh; Harar and Kersa, Ethiopia; Siaya and Kisumu, Kenya;
Bamako, Mali; Manhi\xC3\xA7a, Mozambique; Bombali, Sierra Leone;
and Soweto, South Africa) to collect standardised,
population-based, longitudinal data on under-5 mortality and
stillbirths in sub-Saharan Africa and south Asia, to improve the
accuracy of determining causes of death. Here, we analysed data
obtained in the first 2 years after the implementation of CHAMPS
at the first five operational sites, during which surveillance
and post-mortem diagnostics, including minimally invasive tissue
sampling (MITS), were used. Data were abstracted from all
available clinical records of deceased children, and relevant
maternal health records were also extracted for stillbirths and
neonatal deaths, to incorporate reported pregnancy or delivery
complications. Expert panels followed standardised procedures to
characterise causal chains leading to death, including
underlying, intermediate (comorbid or antecedent causes), and
immediate causes of death for stillbirths, neonatal deaths, and
child (age 1-59 months) deaths." - Label: FINDINGS NlmCategory:
RESULTS content: Between Dec 10, 2016, and Dec 31, 2018, MITS
procedures were implemented at five sites in Mozambique, South
Africa, Kenya, Mali, and Bangladesh. We screened 2385 death
notifications for inclusion eligibility, following which 1295
families were approached for consent; consent was provided for
MITS by 963 (74%) of 1295 eligible cases approached. At least
one cause of death was identified in 912 (98%) of 933 cases (180
stillbirths, 449 neonatal deaths, and 304 child deaths); two or
more conditions were identified in the causal chain for 585
(63%) of 933 cases. The most common underlying causes of
stillbirth were perinatal asphyxia or hypoxia (130 [72%] of 180
stillbirths) and congenital infection or sepsis (27 [15%]). The
most common underlying causes of neonatal death were preterm
birth complications (187 [42%] of 449 neonatal deaths),
perinatal asphyxia or hypoxia (98 [22%]), and neonatal sepsis
(50 [11%]). The most common underlying causes of child deaths
were congenital birth defects (39 [13%] of 304 deaths), lower
respiratory infection (37 [12%]), and HIV (35 [12%]). In 503
(54%) of 933 cases, at least one contributory pathogen was
identified. Cytomegalovirus, Escherichia coli, group B
Streptococcus, and other infections contributed to 30 (17%) of
180 stillbirths. Among neonatal deaths with underlying
prematurity, 60% were precipitated by other infectious causes.
Of the 275 child deaths with infectious causes, the most common
contributory pathogens were Klebsiella pneumoniae (86 [31%]),
Streptococcus pneumoniae (54 [20%]), HIV (40 [15%]), and
cytomegalovirus (34 [12%]), and multiple infections were common.
Lower respiratory tract infection contributed to 174 (57%) of
304 child deaths. - Label: INTERPRETATION NlmCategory:
CONCLUSIONS content: Cause of death determination using MITS
enabled detailed characterisation of contributing conditions.
Global estimates of child mortality aetiologies, which are
currently based on a single syndromic cause for each death, will
be strengthened by findings from CHAMPS. This approach adds
specificity and provides a more complete overview of the chain
of events leading to death, highlighting multiple potential
interventions to prevent under-5 mortality and stillbirths. -
Label: FUNDING NlmCategory: BACKGROUND content: Bill &
Melinda Gates Foundation
Tracking health system performance in times of crisis using routine health data: lessons learned from a multicountry consortium
COVID-19 has prompted the use of readily available administrative data to track health system performance in times of crisis and to monitor disruptions in essential healthcare services. In this commentary we describe our experience working with these data and lessons learned across countries. Since April 2020, the Quality Evidence for Health System Transformation (QuEST) network has used administrative data and routine health information systems (RHIS) to assess health system performance during COVID-19 in Chile, Ethiopia, Ghana, Haiti, Lao People's Democratic Republic, Mexico, Nepal, South Africa, Republic of Korea and Thailand. We compiled a large set of indicators related to common health conditions for the purpose of multicountry comparisons. The study compiled 73 indicators. A total of 43% of the indicators compiled pertained to reproductive, maternal, newborn and child health (RMNCH). Only 12% of the indicators were related to hypertension, diabetes or cancer care. We also found few indicators related to mental health services and outcomes within these data systems. Moreover, 72% of the indicators compiled were related to volume of services delivered, 18% to health outcomes and only 10% to the quality of processes of care. While several datasets were complete or near-complete censuses of all health facilities in the country, others excluded some facility types or population groups. In some countries, RHIS did not capture services delivered through non-visit or nonconventional care during COVID-19, such as telemedicine. We propose the following recommendations to improve the analysis of administrative and RHIS data to track health system performance in times of crisis: ensure the scope of health conditions covered is aligned with the burden of disease, increase the number of indicators related to quality of care and health outcomes; incorporate data on nonconventional care such as telehealth; continue improving data quality and expand reporting from private sector facilities; move towards collecting patient-level data through electronic health records to facilitate quality-of-care assessment and equity analyses; implement more resilient and standardized health information technologies; reduce delays and loosen restrictions for researchers to access the data; complement routine data with patient-reported data; and employ mixed methods to better understand the underlying causes of service disruptions
Causes of death among infants and children in the Child Health and Mortality Prevention Surveillance (CHAMPS) network
Importance The number of deaths of children younger than 5 years has been steadily decreasing worldwide, from more than 17 million annual deaths in the 1970s to an estimated 5.3 million in 2019 (with 2.8 million deaths occurring in those aged 1-59 months [53% of all deaths in children aged <5 years]). More detailed characterization of childhood deaths could inform interventions to improve child survival.
Objective To describe causes of postneonatal child deaths across 7 mortality surveillance sentinel sites in Africa and Asia.
Design, Setting, and Participants The Child Health and Mortality Prevention Surveillance (CHAMPS) Network conducts childhood mortality surveillance in sub-Saharan Africa and South Asia using innovative postmortem minimally invasive tissue sampling (MITS). In this cross-sectional study, MITS was conducted in deceased children aged 1 to 59 months at 7 sites in sub-Saharan Africa and South Asia from December 3, 2016, to December 3, 2020. Data analysis was conducted between October and November 2021.
Main Outcomes and Measures The expert panel attributed underlying, intermediate, and immediate conditions in the chain of events leading to death, based on histopathologic analysis, microbiological diagnostics, clinical data, and verbal autopsies.
Results In this study, MITS was performed in 632 deceased children (mean [SD] age at death, 1.3 [0.3] years; 342 [54.1%] male). The 6 most common underlying causes of death were malnutrition (104 [16.5%]), HIV (75 [11.9%]), malaria (71 [11.2%]), congenital birth defects (64 [10.1%]), lower respiratory tract infections (LRTIs; 53 [8.4%]), and diarrheal diseases (46 [7.2%]). When considering immediate causes only, sepsis (191 [36.7%]) and LRTI (129 [24.8%]) were the 2 dominant causes. An infection was present in the causal chain in 549 of 632 deaths (86.9%); pathogens most frequently contributing to infectious deaths included Klebsiella pneumoniae (155 of 549 infectious deaths [28.2%]; 127 [81.9%] considered nosocomial), Plasmodium falciparum (122 of 549 [22.2%]), and Streptococcus pneumoniae (109 of 549 [19.9%]). Other organisms, such as cytomegalovirus (57 [10.4%]) and Acinetobacter baumannii (39 [7.1%]; 35 of 39 [89.7%] considered nosocomial), also played important roles. For the top underlying causes of death, the median number of conditions in the chain of events leading to death was 3 for malnutrition, 3 for HIV, 1 for malaria, 3 for congenital birth defects, and 1 for LRTI. Expert panels considered 494 of 632 deaths (78.2%) preventable and 26 of 632 deaths (4.1%) preventable under certain conditions.
Conclusions and Relevance In this cross-sectional study investigating causes of child mortality in the CHAMPS Network, results indicate that, in these high-mortality settings, infectious diseases continue to cause most deaths in infants and children, often in conjunction with malnutrition. These results also highlight opportunities for action to prevent deaths and reveal common interaction of various causes in the path toward death
Infrared organic photodetectors employing ultralow bandgap polymer and non-fullerene acceptors for biometric monitoring
Recent efforts in the field of organic photodetectors (OPD) have been focused on extending broadband detection into the near-infrared (NIR) region. Here, two blends of an ultralow bandgap push–pull polymer TQ-T combined with state-of-the-art non-fullerene acceptors, IEICO-4F and Y6, are compared to obtain OPDs for sensing in the NIR beyond 1100 nm, which is the cut off for benchmark Si photodiodes. It is observed that the TQ-T:IEICO-4F device has a superior IR responsivity (0.03 AW-1 at 1200 nm and −2 V bias) and can detect infrared light up to 1800 nm, while the TQ-T:Y6 blend shows a lower responsivity of 0.01 AW-1. Device physics analyses are tied with spectroscopic and morphological studies to link the superior performance of TQ-T:IEICO-4F OPD to its faster charge separation as well as more favorable donor–acceptor domains mixing. In the polymer blend with Y6, the formation of large agglomerates that exceed the exciton diffusion length, which leads to high charge recombination, is observed. An application of these devices as biometric sensors for real-time heart rate monitoring via photoplethysmography, utilizing infrared light, is demonstrated
Evaluierung nichtchemischer Saatgutbehandlungsverfahren zur Bekämpfung von Phoma valerianellae an Feldsalatsamen
Vitamin A deficiency during pregnancy of HIV infected and non-infected women in tropical settings of Northwest Ethiopia
<p>Abstract</p> <p>Background</p> <p>Vitamin A deficiency (VAD) is known to be a major public health problem among women of reproductive age in South East Asia and Africa. In Ethiopia, there are no studies conducted on serum vitamin A status of HIV-infected pregnant women. Therefore, the present study was aimed at determining the level of serum vitamin A and VAD among pregnant women with and without HIV infection in tropical settings of Northwest Ethiopia.</p> <p>Methods</p> <p>In this cross-sectional study, blood samples were collected from 423 pregnant women and from 55 healthy volunteers who visited the University of Gondar Hospital. Serum concentration of vitamin A was measured by high performance liquid chromatography.</p> <p>Results</p> <p>After controlling for total serum protein, albumin and demographic variables, the mean ± SD serum vitamin A in HIV seropositive pregnant women (0.96 ± 0.42 μmol/L) was significantly lower than that in pregnant women without HIV infection (1.10 ± 0.45 μmol/L, P < 0.05). Likewise, the level of serum vitamin A in HIV seropositive non-pregnant women (0.74 ± 0.39) was significantly lower than that in HIV negative non-pregnant women (1.18 ± 0.59 μmol/L, P < 0.004). VAD (serum retinol < 0.7 μmol/L) was observed in 18.4% and 17.7% of HIV infected and uninfected pregnant women, respectively. Forty six percent of non-pregnant women with HIV infection had VAD while only 28% controls were deficient for vitamin A (P = 0.002).</p> <p>Conclusion</p> <p>The present study shows that VAD is a major public health problem among pregnant women in the tropical settings of Northwest Ethiopia. Considering the possible implications of VAD during pregnancy, we recommend multivitamin (which has a lower level of vitamin A) supplementation in the care and management of pregnant women with or without HIV infection.</p
Overview and Development of the Child Health and Mortality Prevention Surveillance Determination of Cause of Death (DeCoDe) Process and DeCoDe Diagnosis Standards
Mortality surveillance and cause of death data are instrumental in improving health, identifying diseases and conditions that cause
a high burden of preventable deaths, and allocating resources to prevent these deaths. The Child Health and Mortality Prevention
Surveillance (CHAMPS) network uses a standardized process to define, assign, and code causes of stillbirth and child death (<5 years
of age) across the CHAMPS network. A Determination of Cause of Death (DeCoDe) panel composed of experts from a local
CHAMPS site analyzes all available individual information, including laboratory, histopathology, abstracted clinical records, and
verbal autopsy findings for each case and, if applicable, also for the mother. Using this information, the site panel ascertains the underlying cause (event that precipitated the fatal sequence of events) and other antecedent, immediate, and maternal causes of death
in accordance with the International Classification of Diseases, Tenth Revision and the World Health Organization death certificate.
Development and use of the CHAMPS diagnosis standards—a framework of required evidence to support cause of death determination—assures a homogenized procedure leading to a more consistent interpretation of complex data across the CHAMPS network.
This and other standardizations ensures future comparability with other sources of mortality data produced externally to this project. Early lessons learned from implementation of DeCoDe in 5 CHAMPS sites in sub-Saharan Africa and Bangladesh have been
incorporated into the DeCoDe process, and the implementation of DeCoDe has the potential to spur health systems improvements
and local public health action
Causes of stillbirth and death among children younger than 5 years in eastern Hararghe, Ethiopia: a population-based post-mortem study
BACKGROUND: Child mortality is high in Ethiopia, but reliable data on the causes of death are scarce. We aimed to gather data for the contributory causes of stillbirth and child deaths in eastern Ethiopia. METHODS: In this population-based post-mortem study, we established a death-notification system in health facilities and in the community in Kersa (rural), Haramaya (rural) and Harar (urban) in eastern Ethiopia, at a new site of the Child Health and Mortality Prevention Surveillance (CHAMPS) network. We collected ante-mortem data, did verbal autopsies, and collected post-mortem samples via minimally invasive tissue sampling from stillbirths (weighing at least 1000 g or with an estimated gestational age of at least 28 weeks) and children who died younger than 5 years. Children-or their mothers, in the case of stillbirths and deaths in children younger than 6 months-had to have lived in the catchment area for the past 6 months to be included. Molecular, microbiological, and histopathological analyses were done in collected samples. Cause of death was established by an expert panel on the basis of these data and classified as underlying, comorbid, or immediate separately for stillbirths, neonatal deaths (deaths aged 0-27 days), and child deaths (aged 28 days to <5 years). FINDINGS: Between Feb 4, 2019, and Feb 3, 2021, 312 deaths were eligible for inclusion, and the families gave consent in 195 (63%) cases. Cause of death was established in 193 (99%) cases. Among 114 stillbirths, the underlying cause of death was perinatal asphyxia or hypoxia in 60 (53%) and birth defects in 24 (21%). Among 59 neonatal deaths, the most common underlying cause was perinatal asphyxia or hypoxia (17 [29%]) and the most common immediate cause of death was neonatal sepsis, which occurred in 27 (60%). Among 20 deaths in children aged 28 days to 59 months, malnutrition was the leading underlying cause (15 [75%]) and infections were common immediate and comorbid causes. Pathogens were identified in 19 (95%) child deaths, most commonly Klebsiella pneumoniae and Streptococcus pneumoniae. INTERPRETATION: Perinatal asphyxia or hypoxia, infections, and birth defects accounted for most stillbirths and child deaths. Most deaths could have been prevented with feasible interventions, such as improved maternity services, folate supplementation, and improved vaccine uptake. FUNDING: Bill & Melinda Gates Foundation
Initial findings from a novel population-based child mortality surveillance approach: a descriptive study.
BACKGROUND: Sub-Saharan Africa and south Asia contributed 81% of 5·9 million under-5 deaths and 77% of 2·6 million stillbirths worldwide in 2015. Vital registration and verbal autopsy data are mainstays for the estimation of leading causes of death, but both are non-specific and focus on a single underlying cause. We aimed to provide granular data on the contributory causes of death in stillborn fetuses and in deceased neonates and children younger than 5 years, to inform child mortality prevention efforts. METHODS: The Child Health and Mortality Prevention Surveillance (CHAMPS) Network was established at sites in seven countries (Baliakandi, Bangladesh; Harar and Kersa, Ethiopia; Siaya and Kisumu, Kenya; Bamako, Mali; Manhiça, Mozambique; Bombali, Sierra Leone; and Soweto, South Africa) to collect standardised, population-based, longitudinal data on under-5 mortality and stillbirths in sub-Saharan Africa and south Asia, to improve the accuracy of determining causes of death. Here, we analysed data obtained in the first 2 years after the implementation of CHAMPS at the first five operational sites, during which surveillance and post-mortem diagnostics, including minimally invasive tissue sampling (MITS), were used. Data were abstracted from all available clinical records of deceased children, and relevant maternal health records were also extracted for stillbirths and neonatal deaths, to incorporate reported pregnancy or delivery complications. Expert panels followed standardised procedures to characterise causal chains leading to death, including underlying, intermediate (comorbid or antecedent causes), and immediate causes of death for stillbirths, neonatal deaths, and child (age 1-59 months) deaths. FINDINGS: Between Dec 10, 2016, and Dec 31, 2018, MITS procedures were implemented at five sites in Mozambique, South Africa, Kenya, Mali, and Bangladesh. We screened 2385 death notifications for inclusion eligibility, following which 1295 families were approached for consent; consent was provided for MITS by 963 (74%) of 1295 eligible cases approached. At least one cause of death was identified in 912 (98%) of 933 cases (180 stillbirths, 449 neonatal deaths, and 304 child deaths); two or more conditions were identified in the causal chain for 585 (63%) of 933 cases. The most common underlying causes of stillbirth were perinatal asphyxia or hypoxia (130 [72%] of 180 stillbirths) and congenital infection or sepsis (27 [15%]). The most common underlying causes of neonatal death were preterm birth complications (187 [42%] of 449 neonatal deaths), perinatal asphyxia or hypoxia (98 [22%]), and neonatal sepsis (50 [11%]). The most common underlying causes of child deaths were congenital birth defects (39 [13%] of 304 deaths), lower respiratory infection (37 [12%]), and HIV (35 [12%]). In 503 (54%) of 933 cases, at least one contributory pathogen was identified. Cytomegalovirus, Escherichia coli, group B Streptococcus, and other infections contributed to 30 (17%) of 180 stillbirths. Among neonatal deaths with underlying prematurity, 60% were precipitated by other infectious causes. Of the 275 child deaths with infectious causes, the most common contributory pathogens were Klebsiella pneumoniae (86 [31%]), Streptococcus pneumoniae (54 [20%]), HIV (40 [15%]), and cytomegalovirus (34 [12%]), and multiple infections were common. Lower respiratory tract infection contributed to 174 (57%) of 304 child deaths. INTERPRETATION: Cause of death determination using MITS enabled detailed characterisation of contributing conditions. Global estimates of child mortality aetiologies, which are currently based on a single syndromic cause for each death, will be strengthened by findings from CHAMPS. This approach adds specificity and provides a more complete overview of the chain of events leading to death, highlighting multiple potential interventions to prevent under-5 mortality and stillbirths. FUNDING: Bill & Melinda Gates Foundation
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