Publications by authors named "Ousman Mohammed"

Article Synopsis
  • Leprosy is a significant public health issue in Ethiopia, causing social stigma and poor quality of life, emphasizing the need for collaborative actions to address its impact in endemic regions.
  • A cross-sectional study involving 256 leprosy-suspected cases was conducted to assess the acid-fast positivity rate and identify factors contributing to the disease, using interviews and laboratory testing.
  • The study found a 19.6% positivity rate for leprosy, with significant contributing factors including being male, living in rural areas, poor diet, inadequate hygiene, and co-infections.
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Article Synopsis
  • - The study examines the prevalence and antimicrobial resistance of *Streptococcus pneumoniae* in the nasal carriage among Ethiopian children, finding that the overall carriage rate is approximately 32.77% and multidrug resistance is about 31.22%.
  • - Key factors influencing higher carriage rates include age under 5 years, co-sleeping, having siblings, previous hospitalization, and malnutrition.
  • - The research involved analyzing data from 8 studies involving 3,223 children, highlighting that tetracycline and trimethoprim-sulfamethoxazole had the highest resistance rates, while chloramphenicol showed the lowest resistance among the pathogens.
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Background: Accurate reference intervals generated from an apparently healthy population and stratified by crucial variables such as age and gender are required to guarantee appropriate interpretation of test results. Since there were no local reference intervals in the study area, the present study aimed to establish reference intervals on serum lipid profiles and electrolytes for children and adolescents in Addis Ababa.

Methods: This community-based cross-sectional study was conducted from April to October 2019.

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Background: Malaria and undernutrition pose challenges for children in conflict-affected areas. Understanding the prevalence and risk factors for these issues in war-torn communities is important to effectively design aid efforts and select interventions. This study aimed to determine the prevalence and correlates of malaria and undernutrition among febrile children in northeast Ethiopia to help address these problems.

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Introduction: Hypertension has emerged as a significant public health concern, ranking among the leading causes of mortality in low- and middle-income countries. Moreover, it is closely associated with structural and functional alterations in hematopoietic cells. Therefore, this study aimed to evaluate the hematological parameters of hypertensive patients in Northeast Ethiopia.

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Background: Gastric cancer (GC), a malignant epithelial tumor, is the fourth leading cause of cancer-related death worldwide. Therapeutic strategies for GC, despite the biggest challenges, can significantly improve survival rates through early detection and effective screening methods.

Aim: To provide brief information on the necessity of multiple specific diagnostic, prognostic, and predictive markers for GC.

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Background: Preeclampsia (PE), an obstetric disorder, remains one of the leading causes of maternal and infant mortality worldwide. In individuals with PE, the coagulation-fibrinolytic system is believed to be among the most significantly impacted systems due to maternal inflammatory responses and immune dysfunction. Therefore, this systematic review and meta-analysis aimed to assess the association of prothrombin time (PT), thrombin time (TT) and activated partial thromboplastin time (APTT) levels with preeclampsia.

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Background: Bacterial pneumonia can affect all age groups, but people with weakened immune systems, young children, and the elderly are at a higher risk. Streptococcus pneumoniae, Klebsiella pneumoniae, Haemophilus influenzae, and Pseudomonas aeruginosa are the most common causative agents of pneumonia, and they have developed high MDR in recent decades in Ethiopia. This systematic review and meta-analysis aimed to determine the pooled prevalence of bacterial pneumonia and multidrug resistance in Ethiopia.

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Background: Dyslipidemia is responsible for more than half of the global ischemic heart disease (IHD) and more than 4 million deaths annually. Assessing the prevalence of dyslipidemia can be crucial in predicting the future disease development and possible intervention strategies. Therefore, this systematic review and meta-analysis was aimed at assessing the pooled prevalence of dyslipidemia in HIV-infected patients.

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Article Synopsis
  • Acinetobacter baumannii is a significant antibiotic-resistant pathogen, especially known for causing biofilm-associated infections in healthcare settings, and is classified as a "red-alert" pathogen requiring urgent attention for new antibiotics.
  • A systematic review analyzed 862 studies, ultimately focusing on 26 studies that involved 2,123 clinical isolates, revealing that 65.63% were capable of producing biofilms, which enhances their antibiotic resistance.
  • The prevalence of biofilm-producing strains is notably high in studies published after 2014 (66.31%), particularly in the Western Pacific region (76.17%) and Asia (66.22%).
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Background: Clinical laboratory reference intervals play a vital role in evaluating overall well-being, tracking the progression of diseases, and detecting potential harmful effects and complications. Despite evidence revealing disparities, many African nations currently rely on reference intervals for blood analysis obtained mainly from Western populations. This practice increases the risk of misidentifying and misdiagnosing healthy individuals.

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Background: COVID-19 is a rapidly emerging global health threat and economic disaster. The epidemiology and outcomes of COVID-19 patients in Ethiopia are scarce. Thus, the present study aimed to assess clinical profiles, epidemiological characteristics, and treatment outcomes of patients with COVID-19 and to identify determinants of the disease outcome among COVID-19 patients in North-eastern Ethiopia.

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Introduction: Vancomycin-resistant Staphylococcus aureus, identified as a "high priority antibiotic-resistant pathogen" by the World Health Organization, poses a significant threat to human health. This systematic review and meta-analysis aimed to estimate the pooled prevalence of vancomycin-resistant Staphylococcus aureus in Ethiopia.

Methods: This systematic review and meta-analysis was reported in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines.

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  • Hyperuricemia is a significant health concern for individuals with type 2 diabetes, leading to increased risks of diabetes complications and cardiovascular diseases, as well as poor overall prognosis.
  • A systematic review and meta-analysis was performed to determine the prevalence of hyperuricemia among type 2 diabetes patients in Africa, utilizing various electronic databases for relevant studies and employing thorough statistical analysis methods.
  • The findings revealed a 27.28% overall prevalence of hyperuricemia in African type 2 diabetic patients, with the highest rates in Central Africa (33.72%) and similar rates for both male (28.20%) and female (28.02%) patients, highlighting the need for regular health screenings.
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Background: Microalbuminuria (MAU) is considered the earliest sign of diabetic nephropathy among diabetes patients. In order to effectively manage diabetic nephropathy and its consequences early, detection of microalbuminuria as soon as possible, especially for diabetes patients, is critical. Therefore, the present study aimed to determine the pooled prevalence of microalbuminuria among diabetes patients in Africa.

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Background And Aims: Malaria elimination programs have also encountered numerous challenges, such as widespread asymptomatic carriers in endemic areas, which should be taken into account in malaria-control programs for effective transmission interruption. The purpose of this research was to determine the prevalence of symptomatic and asymptomatic malaria infections and associated factors, in pastoral communities.

Methods: A community-based cross-sectional study was conducted among selected districts in the Waghemra Zone, Northeast Ethiopia, from September to December 2022.

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Background And Aim: Toxoplasmosis is the most widespread zoonotic disease that affects one-third of the world's population, and imposes a major public health problem worldwide. This study aimed to assess the prevalence of toxoplasmosis among patients with neuropsychiatric patients.

Methods: Electronic databases PubMed, Google Scholar, Web of Science, Research Gate, and Scopus were thoroughly searched from February to March 2022 to identify all relevant studies.

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Introduction: Carbapenemase-producing Enterobacteriaceae are by far the most public health and urgent clinical problems with antibiotic resistance. They cause longer hospital stays, more expensive medical care, and greater mortality rates. This systematic review and meta-analysis aimed to indicate the prevalence of carbapenemase-producing Enterobacteriaceae in Ethiopia.

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Background: Despite the availability of effective medications, tuberculosis (TB) continues to be a serious global public health problem, primarily affecting low and middle-income nations. Measuring and reporting TB treatment outcomes and identifying associated factors are fundamental parts of TB treatment. The goal of this study was to look at the outcomes of TB treatment and the factors that influence them in Sekota, Northeast Ethiopia.

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Background: One of the major risk factors for cardiovascular disease is atherogenic dyslipidemia. There was, however, little information available in Ethiopia. Therefore, the purpose of this study was to estimate the prevalence of atherogenic dyslipidemia and related risk factors in Northeast Ethiopian hypertension patients.

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Background: Currently, more than two-thirds of medical decisions are made based on laboratory test results. However, due to the compromised pre-analytical and post-analytical phases (or extra-analytical phase), the reporting of incorrect or inappropriate test results was still prevalent. Studies focusing on the prevalence of and factors associated with laboratory error remain very limited in Ethiopia.

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 Lipid abnormalities during childhood might be associated with a higher risk of atherosclerosis development in adulthood. In Ethiopia, there were no data on this area. The present work was aimed at assessing the lipid profile abnormalities among children and adolescents aged between 5 and 17 years, in Addis Ababa, Ethiopia.

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Background: Globally, the human immunodeficiency virus has been recognized as a major public health concern. The direct toxicity of antiretroviral medicines or their active metabolites causes liver cell destruction by different mechanisms, inducing immune-mediated inflammation, oxidative stress, and other mechanisms. On the other hand, the virus itself also produces hepatotoxicity.

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Article Synopsis
  • A study conducted in Addis Ababa, Ethiopia aimed to establish reference intervals (RIs) for serum protein electrophoresis in healthy adults, as existing data is scarce in resource-limited countries.
  • The research included 297 adults and utilized statistical methods to analyze serum samples collected from various sub-cities, applying guidelines for reference range establishment.
  • The findings showed specific RIs for different serum proteins, revealing gender differences, particularly in albumin and globulin levels, while beta-2 and gamma globulin showed no significant gender variation.
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Background: Studies showed that more than half of Ethiopians were presumed to be chronically infected with . Nowadays, evidence has come to the literature strongly suggesting the potential association between and extra gastric disorders including atherosclerosis.

Objective: To assess the association of infection with dyslipidaemia and other atherogenic factors in dyspeptic patients at St.

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