5 results on '"Mediatrix Mumia"'
Search Results
2. Risk factors for Burkitt lymphoma in East African children and minors: A case–control study in malaria‐endemic regions in Uganda, Tanzania and Kenya
- Author
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Patrick Kerchan, Pamela A. Were, Sally Peprah, Hadijah Nabalende, Ismail D. Legason, Nestory Masalu, Herry Dhudha, Robert T. Kuremu, Isaiah O. Genga, Robert J. Biggar, Martin D. Ogwang, Steven J. Reynolds, Josiah Magatti, Constance Tenge, Tobias Kinyera, Walter N. Wekesa, Leona W. Ayers, Hillary Ally, Kishor Bhatia, Esther Kawira, Sam M. Mbulaiteye, Mediatrix Mumia, Peter Odada Sumba, Ruth M. Pfeiffer, James J. Goedert, and Isaac Otim
- Subjects
Male ,Cancer Research ,medicine.medical_specialty ,Adolescent ,Endemic Diseases ,Population ,Prevalence ,Tanzania ,Article ,03 medical and health sciences ,0302 clinical medicine ,Acquired immunodeficiency syndrome (AIDS) ,Risk Factors ,Surveys and Questionnaires ,HIV Seropositivity ,parasitic diseases ,Epidemiology ,medicine ,Humans ,Uganda ,Risk factor ,Child ,education ,education.field_of_study ,biology ,business.industry ,Infant, Newborn ,Case-control study ,Infant ,biology.organism_classification ,medicine.disease ,Burkitt Lymphoma ,Kenya ,Malaria ,Socioeconomic Factors ,Oncology ,Case-Control Studies ,Child, Preschool ,030220 oncology & carcinogenesis ,Female ,business ,Demography - Abstract
Endemic Burkitt lymphoma (eBL) is the most common childhood cancer in sub-Saharan African countries, however, few epidemiologic studies have been undertaken and none attempted enrolling cases from multiple countries. We therefore conducted a population-based case-control study of eBL in children aged 0-15 years old in six regions in Northern Uganda, Northern Tanzania and Western Kenya, enrolling 862 suspected cases and 2,934 population controls (response rates 98.5-100%), and processing ~40,000 vials of samples using standardized protocols. Risk factor questionnaires were administered, and malaria period prevalence was measured using rapid diagnostic tests (RDTs). A total of 80.9% of the recruited cases were diagnosed as eBL; 61.4% confirmed by histology. Associations with eBL risk were computed using logistic regression models adjusted for relevant confounders. Associations common in at least two countries were emphasized. eBL risk was decreased with higher maternal income and paternal education and elevated with history of inpatient malaria treatment >12 months before enrollment. Reporting malaria-attributed fever up to 6 months before enrollment and malaria-RDT positivity at enrollment were associated with decreased eBL risk. Conversely, reporting exposure to mass malaria suppression programs (e.g., indoor residual insecticide) was associated with elevated risk. HIV seropositivity was associated with elevated eBL risk, but the relative impact was small. The study shows that it is feasible to conduct networked, multisite population-based studies of eBL in Africa. eBL was inversely associated with socioeconomic status, positively associated with inpatient malaria treatment 12 months ago and with living in areas targeted for malaria suppression, which support a role of malaria in eBL.
- Published
- 2019
3. A Cross-Sectional Population Study of Geographic, Age-Specific, and Household Risk Factors for Asymptomatic Plasmodium falciparum Malaria Infection in Western Kenya
- Author
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Constance Tenge, Isaac Otim, Peter Odada Sumba, Sally Peprah, Steven J. Reynolds, Walter N. Wekesa, Ambrose Talisuna, Isaiah O. Genga, Joshua Biddle, Robert T. Kuremu, Pamela A. Were, Mediatrix Mumia, Tobias Kinyera, Robert J. Biggar, Kishor Bhatia, Sam M. Mbulaiteye, James J. Goedert, Ismail D. Legason, and Ruth M. Pfeiffer
- Subjects
Rapid diagnostic test ,biology ,Cross-sectional study ,030231 tropical medicine ,Plasmodium falciparum ,Odds ratio ,Logistic regression ,medicine.disease ,biology.organism_classification ,03 medical and health sciences ,0302 clinical medicine ,Infectious Diseases ,Virology ,Environmental health ,parasitic diseases ,medicine ,Population study ,Parasitology ,Socioeconomic status ,Malaria - Abstract
The burden of Plasmodium falciparum (Pf) malaria in Kenya is decreasing; however, it is still one of the top 10 causes of morbidity, particularly in regions of western Kenya. Between April 2015 and June 2016, we enrolled 965 apparently healthy children aged 0-15 years in former Nyanza and Western Provinces in Kenya to characterize the demographic, geographic, and household risk factors of asymptomatic malaria as part of an epidemiologic study to investigate the risk factors for endemic Burkitt lymphoma. The children were sampled using a stratified, multistage cluster sampling survey design. Malaria was assessed by rapid diagnostic test (RDT) and thick-film microscopy (TFM). Primary analyses of Pf malaria prevalence (pfPR) are based on RDT. Associations between weighted pfPR and potential risk factors were evaluated using logistic regression, accounting for the survey design. Plasmodium falciparum malaria prevalence was 36.0% (27.5%, 44.5%) by RDT and 22.3% (16.0%, 28.6%) by TFM. Plasmodium falciparum malaria prevalence was positively associated with living in the lake-endemic area (adjusted odds ratio [aOR] 3.46; 95% confidence interval [95% CI] 1.63, 7.37), paternal occupation as peasant farmer (aOR 1.87; 1.08, 3.26) or manual laborer (aOR 1.83; 1.00, 3.37), and keeping dogs (aOR 1.62; 0.98-2.69) or cows (aOR 1.52; 0.96-2.40) inside or near the household. Plasmodium falciparum malaria prevalence was inversely associated with indoor residual insecticide spraying (IRS) (aOR 0.44; 0.19, 1.01), having a household connected to electricity (aOR 0.47; 0.22, 0.98), and a household with two (aOR 0.45; 0.22, 0.93) or ≥ three rooms (aOR 0.41; 0.18, 0.93). We report high but geographically heterogeneous pfPR in children in western Kenya and significant associations with IRS and household-level socioeconomic factors.
- Published
- 2019
4. Mean platelet counts are relatively decreased with malaria but relatively increased with endemic Burkitt Lymphoma in Uganda, Tanzania, and Kenya
- Author
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Walter N. Wekesa, Kishor Bhatia, Steven J. Reynolds, Robert J. Biggar, Hadijah Nabalende, Sally Peprah, Mediatrix Mumia, Sam M. Mbulaiteye, Herry Dhudha, Pamela A. Were, Nestory Masalu, Patrick Kerchan, Esther Kawira, Ismail D. Legason, Constance Tenge, James J. Goedert, Leona W. Ayers, Robert T. Kuremu, Martin D. Ogwang, Isaac Otim, and Tobias Kinyera
- Subjects
Male ,medicine.medical_specialty ,Adolescent ,Gastroenterology ,Tanzania ,03 medical and health sciences ,0302 clinical medicine ,White blood cell ,Internal medicine ,parasitic diseases ,Epidemiology ,medicine ,Humans ,Platelet ,Uganda ,Child ,biology ,business.industry ,Platelet Count ,Infant, Newborn ,Infant ,Plasmodium falciparum ,Hematology ,Odds ratio ,biology.organism_classification ,medicine.disease ,Burkitt Lymphoma ,Kenya ,Confidence interval ,Lymphoma ,Malaria ,medicine.anatomical_structure ,030220 oncology & carcinogenesis ,Child, Preschool ,Commentary ,Female ,business ,030215 immunology - Abstract
Platelet counts are decreased in Plasmodium falciparum malaria, which is aetiologically linked with endemic Burkitt lymphoma (eBL). However, the pattern of platelet counts in eBL cases is unknown. We studied platelet counts in 582 eBL cases and 2 248 controls enrolled in a case-control study in Uganda, Tanzania and Kenya (2010-2016). Mean platelet counts in controls or eBL cases with or without malaria-infection in controls versus eBLcases were compared using Student's t-test. Odds ratios (ORs) and two-sided 95% confidence intervals (95% CIs) were estimated using multiple logistic regression, controlling for age, sex, haemoglobin and white blood cell counts. Platelets were decreased with malaria infection in the controls [263 vs. 339 × 109 platelets/l, P
- Published
- 2020
5. A Cross-Sectional Population Study of Geographic, Age-Specific, and Household Risk Factors for Asymptomatic
- Author
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Sally, Peprah, Constance, Tenge, Isaiah O, Genga, Mediatrix, Mumia, Pamela A, Were, Robert T, Kuremu, Walter N, Wekesa, Peter O, Sumba, Tobias, Kinyera, Isaac, Otim, Ismail D, Legason, Joshua, Biddle, Steven J, Reynolds, Ambrose O, Talisuna, Robert J, Biggar, Kishor, Bhatia, James J, Goedert, Ruth M, Pfeiffer, and Sam M, Mbulaiteye
- Subjects
Male ,Adolescent ,Plasmodium falciparum ,Risk Factors ,Surveys and Questionnaires ,parasitic diseases ,Odds Ratio ,Prevalence ,Animals ,Humans ,Malaria, Falciparum ,Child ,Asymptomatic Infections ,Family Characteristics ,Geography ,Age Factors ,Infant, Newborn ,Infant ,Articles ,Kenya ,Cross-Sectional Studies ,Logistic Models ,Socioeconomic Factors ,Child, Preschool ,Epidemiological Monitoring ,Female - Abstract
The burden of Plasmodium falciparum (Pf) malaria in Kenya is decreasing; however, it is still one of the top 10 causes of morbidity, particularly in regions of western Kenya. Between April 2015 and June 2016, we enrolled 965 apparently healthy children aged 0–15 years in former Nyanza and Western Provinces in Kenya to characterize the demographic, geographic, and household risk factors of asymptomatic malaria as part of an epidemiologic study to investigate the risk factors for endemic Burkitt lymphoma. The children were sampled using a stratified, multistage cluster sampling survey design. Malaria was assessed by rapid diagnostic test (RDT) and thick-film microscopy (TFM). Primary analyses of Pf malaria prevalence (pfPR) are based on RDT. Associations between weighted pfPR and potential risk factors were evaluated using logistic regression, accounting for the survey design. Plasmodium falciparum malaria prevalence was 36.0% (27.5%, 44.5%) by RDT and 22.3% (16.0%, 28.6%) by TFM. Plasmodium falciparum malaria prevalence was positively associated with living in the lake-endemic area (adjusted odds ratio [aOR] 3.46; 95% confidence interval [95% CI] 1.63, 7.37), paternal occupation as peasant farmer (aOR 1.87; 1.08, 3.26) or manual laborer (aOR 1.83; 1.00, 3.37), and keeping dogs (aOR 1.62; 0.98–2.69) or cows (aOR 1.52; 0.96–2.40) inside or near the household. Plasmodium falciparum malaria prevalence was inversely associated with indoor residual insecticide spraying (IRS) (aOR 0.44; 0.19, 1.01), having a household connected to electricity (aOR 0.47; 0.22, 0.98), and a household with two (aOR 0.45; 0.22, 0.93) or ≥ three rooms (aOR 0.41; 0.18, 0.93). We report high but geographically heterogeneous pfPR in children in western Kenya and significant associations with IRS and household-level socioeconomic factors.
- Published
- 2018
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