173 research outputs found
Consumption of Sweetened Beverages among School Going Children in a Densely Populated Township in Lilongwe, Malawi
Background: The growing global childhood obesity pandemic has not spared lowincome countries like Malawi, where 8% of children below the age of five years are overweight. Globally, regular consumption of sweetened beverages is implicated among the factors that fuel childhood obesity. Despite the growing problem, there are no local studies on any aspect of sweetened beverage consumption among children in Malawi that could help in guiding interventions and public health nutrition policies.Aim: We aimed to assess sweetened beverage consumption among school-going children in Chilinde, a densely populated township in Lilongwe, the capital city of Malawi.Methods: A total of 60 school-going children whose caregivers gave verbal consent were included, and a structured questionnaire was administered to the caregiver (or other knowledgeable and responsible member of the household) of each eligible child.Results: Our results showed that 50 of the 60 children sampled were consuming a wide-range of sweetened beverages on a regular basis on any day of the week, mostly during meal times (n = 23), before going to school (n = 22), and after school (n = 19). One-third of the children were reportedly consuming up to 300 mL of several sweetened beverages per day.Conclusion: Like in many countries around the world, consumption of sweetened beverages appears to be common among young school-going children in this urban setting in Malawi. As the country builds public health responses to the growing problem of non-communicable diseases, early preventive interventions among children should be given priority
Investigation of the sequential validity of quality improvement team self-assessments in a health facility HIV improvement collaborative in Tanzania
Background: Self-assessment is widely used in the health care improvement collaboratives quality improvement (QI) teams’ to assess their own performance. There is mixed evidence on the validity of this approach. This study investigated sequential validity of self-assessments in a QI HIV collaborative in Tanzania.Objectives: Define the separate self-assessment steps in QI process; determine if the validity of self-assessments improved over time; determine if validity improvement is the same for the different self-assessment activities and determine if validity is the same for the different facilities and type of care.Design: Prospective semi-quantitative study.Setting: The study was undertaken over 10 months in nine facilities in Mtwara region of Tanzania following appropriate approvals. Study did not interfere with routine services and processes of continuous quality improvement at the facilities.Subjects:Trained investigators retrieved information from records and the computers using data capture forms. Patients of service providers were not questioned or participate in the study.Conclusion:The validity of self-assessments in the HIV/ART/PMTCT Improvement Collaborative in Mtwara region of Tanzania improved as the collaborative matured. Data from computerised data bases unreliable, calling for more training in the use of computers. The weakness in communication should be addressed by collaborative designers and coaches
Community-linked maternal death review (CLMDR) to measure and prevent maternal mortality: a pilot study in rural Malawi.
In Malawi, maternal mortality remains high. Existing maternal death reviews fail to adequately review most deaths, or capture those that occur outside the health system. We assessed the value of community involvement to improve capture and response to community maternal deaths
Lymphocyte subsets in healthy Malawians: Implications for immunologic assessment of HIV infection in Africa
BackgroundCD4+T lymphocyte measurements are the most important indicator of mortality in HIV-infected individuals in resource-limited settings. There is currently a lack of comprehensive immunophenotyping data from African populations to guide the immunologic assessment of HIV infection.ObjectiveTo quantify variation in absolute and relative lymphocyte subsets with age in healthy Malawians.MethodsLymphocyte subsets in peripheral blood of 539 healthy HIV-uninfected Malawians stratified by age were enumerated by flow cytometry.ResultsB and T–lymphocyte and T-lymphocyte subset absolute concentrations peaked in early childhood then decreased to adult levels, whereas lymphocyte subset proportions demonstrated much less variation with age. Adult lymphocyte subsets were similar to those in developed countries. In contrast, high B-lymphocyte and CD8+T-lymphocyte levels among children under 2 years, relative to those in developed countries, resulted in low CD4+T-lymphocyte percentages that varied little between 0 and 5 years (35% to 39%). The CD4+T-lymphocyte percentages in 35% of healthy children under 1 year and 18% of children age 1 to 3 years were below the World Health Organization threshold defining immunodeficiency in HIV-infected children in resource-limited settings. Thirteen percent of healthy children under 18 months old had a CD4:CD8T-lymphocyte ratio <1.0, which is commonly associated with HIV infection. All immunologic parameters except absolute natural killer lymphocyte concentration varied significantly with age, and percentage and overall absolute CD4+T-lymphocyte counts were higher in females than males.ConclusionAlthough lymphocyte subsets in Malawian adults are similar to those from developed countries, CD4+T-lymphocyte percentages in young children are comparatively low. These findings need to be considered when assessing the severity of HIV-related immunodeficiency in African children under 3 years
Is transcription of data on antiretroviral treatment from electronic to paper-based registers reliable in Malawi?
Design and Implementation of a Hospital-based Trauma Surveillance Registry in a Resource-Poor Setting: A Cost Analysis Study
Introduction: Trauma is a leading cause of morbidity and mortality globally, with a disproportionate burden affecting low- and middle-income countries (LMIC). Rapid urbanization and differences in transportation patterns result in unique injury patterns in LMIC. Trauma registries are essential to determine the impact of trauma and the nature of injuries in LMIC to enable hospitals and healthcare systems to optimize care and to allocate resources. Methods: A retrospective database analysis of prospectively collected data in the Kamuzu Central Hospital (KCH) Trauma Registry from 2018 – 2019 was performed. Activity-based costing, a bottom-up cost analysis method to determine the cost per patient registered, was completed after systematically analyzing the standard operating procedures of the KCH trauma registry. Results: During the study period, 12,616 patients were included in the KCH Trauma Registry. Startup costs for the trauma registry are estimated at 1815.84 for personnel cost, 342.50 for initial data clerk training, and 29,697.24 per year. Yearly recurrent data clerk training costs are 1632.60 per year. Supplies for the completion of trauma intake forms (binders, paper, pens) are 33,361.64, which costs $2.64 per patient registered in the registry in 2018. Conclusion: Trauma registries are necessary for the assessment of the local trauma burden and injury pattern, but require significant financial commitment and time. To fully capture the local burden of trauma in resource-limited settings, acquiring, validating, and analyzing accurate data is crucial. Anticipating the financial burden of a trauma surveillance registry ahead of time is imperative
A COMPARATIVE STUDY ON THE APHRODISIAC ACTIVITY OF FOOD PLANTS MONDIA WHITEI, CHENOPODIUM ALBUM, CUCURBITA PEPO AND SCLEROCARYA BIRREA EXTRACTS IN MALE WISTAR RATS.
Background: Any substance that increases erectile function, sexual performance and enjoyment is considered an aphrodisiac. The was to compare the effects of food plants Mondia whitei, Chenopodium album, Cucurbita pepo and Sclerocarya birrea extracts 200mg/kg body weight on sexual behavior, sperm parameters and testosterone levels in adult male rats. These are food plants also aphrodisiacs in South Africa, Zimbabwe and other parts of Africa.
Materials and methods: Sexual behavior parameters assessed in this study included an arousal component (mount latency and intromission sexual potency (mount frequency and intromission frequency), erection (copulatory efficiency) and ejaculations. All treatments orally daily for 28 days. Sexual behavior parameters were quantified 2 hours after a single dose, at 14 days and at 28 days of treatment.
Results: The order of efficacy in stimulating sexual behavior in male rats was M. whitei >S. birrea > C. pepo ≥C. album. Although change in number of ejaculations and sperm count (P>0.05) for all treatment groups compared to controls, all treatments increased motility. M. whitei and C. pepo treatments resulted in increased (
Urine selenium concentration is a useful biomarker for assessing population level selenium status
Plasma selenium (Se) concentration is an established population level biomarker of Se status, especially in Se-deficient populations. Previously observed correlations between dietary Se intake and urinary Se excretion suggest that urine Se concentration is also a potentially viable biomarker of Se status. However, there are only limited data on urine Se concentration among Se-deficient populations. Here, we test if urine is a viable biomarker for assessing Se status among a large sample of women and children in Malawi, most of whom are likely to be Se-deficient based on plasma Se status. Casual (spot) urine samples (n = 1406) were collected from a nationally representative sample of women of reproductive age (WRA, n =741) and school aged children (SAC, n=665) across Malawi as part of the 2015/16 Demographic and Health Survey. Selenium concentration in urine was determined using inductively coupled plasma mass spectrometry (ICP-MS). Urinary dilution corrections for specific gravity, osmolality, and creatinine were applied to adjust for hydration status. Plasma Se status had been measured for the same survey participants. There was between-cluster variation in urine Se concentration that corresponded with variation in plasma Se concentration, but not between households within a cluster, or between individuals within a household. Corrected urine Se concentrations explained more of the between-cluster variation in plasma Se concentration than uncorrected data. These results provide new evidence that urine may be used in the surveillance of Se status at the population level in some groups. This could be a cost-effective option if urine samples are already being collected for other assessments, such as for iodine status analysis as in the Malawi and other national Demographic and Health Surveys
Biofortified Maize Improves Selenium Status of Women and Children in a Rural Community in Malawi: Results of the Addressing Hidden Hunger With Agronomy Randomized Controlled Trial
Background: Selenium deficiency is widespread in the Malawi population. The selenium concentration in maize, the staple food crop of Malawi, can be increased by applying selenium-enriched fertilizers. It is unknown whether this strategy, called agronomic biofortification, is effective at alleviating selenium deficiency.
Objectives: The aim of the Addressing Hidden Hunger with Agronomy (AHHA) trial was to determine whether consumption of maize flour, agronomically-biofortified with selenium, affected the serum selenium concentrations of women, and children in a rural community setting.
Design: An individually-randomized, double-blind placebo-controlled trial wasconducted in rural Malawi. Participants were randomly allocated in a 1:1 ratio to receive either intervention maize flour biofortified with selenium through application of selenium fertilizer, or control maize flour not biofortified with selenium. Participant households
received enough flour to meet the typical consumption of all household members (330 g capita−1 day−1) for a period of 8 weeks. Baseline and endline serum selenium concentration (the primary outcome) was measured by inductively coupled plasma mass spectrometry (ICP-MS).
Results: One woman of reproductive age (WRA) and one school-aged child (SAC) from each of 180 households were recruited and households were randomized to each group. The baseline demographic and socioeconomic status of participants were well-balanced between arms. No serious adverse events were reported. In the intervention arm, mean (standard deviation) serum selenium concentration increased over the intervention period from 57.6 (17.0) μg L−1 (n = 88) to 107.9 (16.4) μg L−1 (n = 88) among WRA and from 46.4 (14.8) μg L−1 (n = 86) to 97.1 (16.0) μg L−1 (n = 88) among SAC. There was no evidence of change in serum selenium concentration in the control groups
Conclusion: Consumption of maize flour biofortified through application of selenium-enriched fertilizer increased selenium status in this community providing strong proof of principle that agronomic biofortification could be an effective approach to address selenium deficiency in Malawi and similar settings.
Clinical Trial Registration http://www.isrctn.com/ISRCTN85899451, identifier:
ISRCTN85899451
Risk of nontyphoidal Salmonella bacteraemia in African children is modified by STAT4
Nontyphoidal Salmonella (NTS) is a major cause of bacteraemia in Africa. The disease typically affects HIV-infected individuals and young children, causing substantial morbidity and mortality. Here we present a genome-wide association study (180 cases, 2677 controls) and replication analysis of NTS bacteraemia in Kenyan and Malawian children. We identify a locus in STAT4, rs13390936, associated with NTS bacteraemia. rs13390936 is a context-specific expression quantitative trait locus for STAT4 RNA expression, and individuals carrying the NTS-risk genotype demonstrate decreased interferon-gamma (IFN gamma) production in stimulated natural killer cells, and decreased circulating IFN gamma concentrations during acute NTS bacteraemia. The NTS-risk allele at rs13390936 is associated with protection against a range of autoimmune diseases. These data implicate interleukin-12-dependent IFN gamma-mediated immunity as a determinant of invasive NTS disease in African children, and highlight the shared genetic architecture of infectious and autoimmune disease.Peer reviewe
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