Charles Obonyo

2.4k total citations · 1 hit paper
45 papers, 1.4k citations indexed

About

Charles Obonyo is a scholar working on Public Health, Environmental and Occupational Health, Nutrition and Dietetics and Pediatrics, Perinatology and Child Health. According to data from OpenAlex, Charles Obonyo has authored 45 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 24 papers in Public Health, Environmental and Occupational Health, 12 papers in Nutrition and Dietetics and 9 papers in Pediatrics, Perinatology and Child Health. Recurrent topics in Charles Obonyo's work include Malaria Research and Control (18 papers), Child Nutrition and Water Access (12 papers) and Mosquito-borne diseases and control (9 papers). Charles Obonyo is often cited by papers focused on Malaria Research and Control (18 papers), Child Nutrition and Water Access (12 papers) and Mosquito-borne diseases and control (9 papers). Charles Obonyo collaborates with scholars based in Kenya, United Kingdom and United States. Charles Obonyo's co-authors include Elizabeth Juma, Robert W. Snow, Kevin Marsh, Brett Lowe, Judy Omumbo, Sassy Molyneux, Ayo Palmer, Sunetra Gupta, Bernard L. Nahlen and Margaret Pinder and has published in prestigious journals such as The Lancet, Scientific Reports and Cochrane Database of Systematic Reviews.

In The Last Decade

Charles Obonyo

42 papers receiving 1.4k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Relation between severe malaria morbidity in children and level of Plasmodium falciparum transmission in Africa

1997 493 citations Robert W. Snow, Judy Omumbo et al. The Lancet profile →

Peers

Charles Obonyo

PHEOH

PARAS

PPCH

CTM

Olugbenga Ayodeji Mokuolu Nigeria

Éric Kendjo France

Stéphane Proux Thailand

Din Syafruddin Indonesia

Oumar Gaye Senegal

Pètra F. Mens Netherlands

Seif Shekalaghe Tanzania

Peter B. Bloland United States

Alphonse Ouédraogo Burkina Faso

Amadou T. Konaté Burkina Faso

Olugbenga Ayodeji Mokuolu Nigeria

Charles Obonyo

1.0k ×0.9

PHEOH

170 ×0.6

PARAS

325 ×1.6

PPCH

115 ×0.8

CTM

145 ×1.1

Citations per year, relative to Charles Obonyo Charles Obonyo (= 1×) peers Olugbenga Ayodeji Mokuolu

Countries citing papers authored by Charles Obonyo

Since Specialization

Citations

This map shows the geographic impact of Charles Obonyo's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Charles Obonyo with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Charles Obonyo more than expected).

Fields of papers citing papers by Charles Obonyo

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Charles Obonyo. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Charles Obonyo. The network helps show where Charles Obonyo may publish in the future.

Co-authorship network of co-authors of Charles Obonyo

This figure shows the co-authorship network connecting the top 25 collaborators of Charles Obonyo. A scholar is included among the top collaborators of Charles Obonyo based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Charles Obonyo. Charles Obonyo is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Obonyo, Charles, et al.. (2024). Efficacy and safety of single-dose artesunate plus sulfalene/pyrimethamine combined with praziquantel for the treatment of children with Schistosoma mansoni or Schistosoma haematobium in western Kenya: a randomised, open-label controlled trial. Parasites & Vectors. 17(1). 279–279. 3 indexed citations

Obonyo, Charles, et al.. (2023). SCHISTOACT: a protocol for an open-label, five-arm, non-inferiority, individually randomized controlled trial of the efficacy and safety of praziquantel plus artemisinin-based combinations in the treatment of Schistosoma mansoni infection. Trials. 24(1). 763–763. 2 indexed citations

Were, Vincent, et al.. (2023). Socioeconomic inequalities in food purchasing practices and expenditure patterns: Results from a cross-sectional household survey in western Kenya. Frontiers in Public Health. 11. 943523–943523. 2 indexed citations

Musuva, Rosemary, et al.. (2022). Navigating the local foodscape: qualitative investigation of food retail and dietary preferences in Kisumu and Homa Bay Counties, western Kenya. BMC Public Health. 22(1). 1186–1186. 2 indexed citations

Obonyo, Charles, Elizabeth Juma, Vincent Were, & Bernhards Ogutu. (2022). Efficacy of 3-day low dose quinine plus clindamycin versus artemether-lumefantrine for the treatment of uncomplicated Plasmodium falciparum malaria in Kenyan children (CLINDAQUINE): an open-label randomized trial. Malaria Journal. 21(1). 30–30. 5 indexed citations

Francis, Oliver, et al.. (2022). Foodscapes, finance, and faith: Multi-sectoral stakeholder perspectives on the local population health and wellbeing in an urbanizing area in Kenya. Frontiers in Public Health. 10. 913851–913851. 2 indexed citations

Obonyo, Charles, Vincent Were, Rosemary Musuva, et al.. (2021). Cross-Sectional Association of Food Source with Food Insecurity, Dietary Diversity and Body Mass Index in Western Kenya. Nutrients. 14(1). 121–121. 5 indexed citations

Andang’o, Pauline, et al.. (2021). Effect of maternal aflatoxin exposure through diet on growth of infants 0 - 3 months in Kisumu county, Kenya. African Journal of Food Agriculture Nutrition and Development. 21(4). 17907–17930. 2 indexed citations

Foley, Louise, et al.. (2020). Impacts of a New Supermarket on Dietary Behavior and the Local Foodscape in Kisumu, Kenya: Protocol for a Mixed Methods, Natural Experimental Study. JMIR Research Protocols. 9(12). e17814–e17814. 5 indexed citations

10.

Marangu, Diana, et al.. (2019). Obstructive Sleep Apnea Awareness among Primary Care Physicians in Africa. Annals of the American Thoracic Society. 17(1). 98–106. 21 indexed citations

11.

Andang’o, Pauline, et al.. (2015). Exposure of children 4 to 6 months of age to aflatoxin in Kisumu County, Kenya.. African Journal of Food Agriculture Nutrition and Development. 15(2). 9949–9963. 10 indexed citations

12.

Ogutu, Bernhards, Kevin Onyango, John Michael Ong’echa, et al.. (2014). Efficacy and safety of artemether-lumefantrine and dihydroartemisinin-piperaquine in the treatment of uncomplicated Plasmodium falciparum malaria in Kenyan children aged less than five years: results of an open-label, randomized, single-centre study. Malaria Journal. 13(1). 33–33. 42 indexed citations

13.

Obonyo, Charles & Elizabeth Juma. (2012). Clindamycin plus quinine for treating uncomplicated falciparum malaria: a systematic review and meta-analysis. Malaria Journal. 11(1). 2–2. 48 indexed citations

14.

Obonyo, Charles, et al.. (2010). Efficacy of artesunate with sulfalene plus pyrimethamine versus praziquantel for treatment of Schistosoma mansoni in Kenyan children: an open-label randomised controlled trial. The Lancet Infectious Diseases. 10(9). 603–611. 38 indexed citations

15.

Obonyo, Charles, et al.. (2008). Public-health crisis after the election violence in Kenya. The Lancet. 371(9621). 1319–1321. 3 indexed citations

16.

Obonyo, Charles, Walter Taylor, Håkan Ekvall, et al.. (2007). Effect of artesunate plus sulfadoxine–pyrimethamine on haematological recovery and anaemia, in Kenyan children with uncomplicated, Plasmodium falciparum malaria. Annals of Tropical Medicine and Parasitology. 101(4). 281–295. 10 indexed citations

17.

Obonyo, Charles & J. Lau. (2006). Efficacy of Haemophilus influenzae type b vaccination of children: a meta-analysis. European Journal of Clinical Microbiology & Infectious Diseases. 25(2). 90–97. 31 indexed citations

18.

Obonyo, Charles, Elizabeth Juma, Bernhards Ogutu, John Vulule, & Joseph Lau. (2006). Amodiaquine combined with sulfadoxine/pyrimethamine versus artemisinin-based combinations for the treatment of uncomplicated falciparum malaria in Africa: a meta-analysis. Transactions of the Royal Society of Tropical Medicine and Hygiene. 101(2). 117–126. 37 indexed citations

19.

Holmgren, Gabrielle, José Pedro Gil, Pedro Eduardo Ferreira, et al.. (2005). Amodiaquine resistant Plasmodium falciparum malaria in vivo is associated with selection of pfcrt 76T and pfmdr1 86Y. Infection Genetics and Evolution. 6(4). 309–314. 130 indexed citations

20.

Snow, Robert W., Judy Omumbo, Brett Lowe, et al.. (1997). Relation between severe malaria morbidity in children and level of Plasmodium falciparum transmission in Africa. The Lancet. 349(9066). 1650–1654. 493 indexed citations breakdown →

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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