Fredrick Otieno

2.4k total citations
99 papers, 1.4k citations indexed

About

Fredrick Otieno is a scholar working on General Health Professions, Infectious Diseases and Epidemiology. According to data from OpenAlex, Fredrick Otieno has authored 99 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 35 papers in General Health Professions, 32 papers in Infectious Diseases and 26 papers in Epidemiology. Recurrent topics in Fredrick Otieno's work include Adolescent Sexual and Reproductive Health (35 papers), HIV/AIDS Research and Interventions (32 papers) and HIV, Drug Use, Sexual Risk (22 papers). Fredrick Otieno is often cited by papers focused on Adolescent Sexual and Reproductive Health (35 papers), HIV/AIDS Research and Interventions (32 papers) and HIV, Drug Use, Sexual Risk (22 papers). Fredrick Otieno collaborates with scholars based in United States, Kenya and South Africa. Fredrick Otieno's co-authors include Josiah Adeyemo, Supriya D. Mehta, Robert C. Bailey, Aoyi Ochieng, Walter Agingu, Susan M. Graham, Stefan J. Green, Maurice S. Onyango, Clement Zeh and Lisa Mills and has published in prestigious journals such as SHILAP Revista de lepidopterología, PLoS ONE and Scientific Reports.

In The Last Decade

Fredrick Otieno

89 papers receiving 1.3k citations

Peers

Fredrick Otieno

EPIDE

GHP

MICRO

PHEOH

Tobias Chirwa South Africa

Cecilia Ferreyra Switzerland

Barry Evans United Kingdom

Paolo Castiglia Italy

Edith Clarke Ghana

Timothy K. Thomas United States

Michael Toole United States

Trang Nguyen United States

Wayne Enanoria United States

Vinohar Balraj India

Tobias Chirwa South Africa

Fredrick Otieno

348 ×0.8

412 ×1.1

EPIDE

422 ×1.3

GHP

142 ×0.7

MICRO

296 ×1.6

PHEOH

Citations per year, relative to Fredrick Otieno Fredrick Otieno (= 1×) peers Tobias Chirwa

Countries citing papers authored by Fredrick Otieno

Since Specialization

Citations

This map shows the geographic impact of Fredrick Otieno'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 Fredrick Otieno with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Fredrick Otieno more than expected).

Fields of papers citing papers by Fredrick Otieno

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Fredrick Otieno. 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 Fredrick Otieno. The network helps show where Fredrick Otieno may publish in the future.

Co-authorship network of co-authors of Fredrick Otieno

This figure shows the co-authorship network connecting the top 25 collaborators of Fredrick Otieno. A scholar is included among the top collaborators of Fredrick Otieno 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 Fredrick Otieno. Fredrick Otieno 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

Jadwin‐Cakmak, Laura, Gary W. Harper, K. Rivet Amico, et al.. (2025). Participatory development and initial pilot run of the Shauriana program to integrate sexual health and mental health support for young gay and bisexual men and other men who have sex with men in Kenya. PubMed. 4(1).

Phillips‐Howard, Penelope A., et al.. (2024). Water, sanitation and hygiene at sex work venues to support menstrual needs. Frontiers in Public Health. 12. 1305601–1305601. 6 indexed citations

Mehta, Supriya D., Fredrick Otieno, Garazi Zulaika, et al.. (2024). Increased reproductive tract infections among secondary school girls during the COVID-19 pandemic: associations with pandemic-related stress, mental health, and domestic safety. Sexual Medicine. 12(3). qfae045–qfae045. 3 indexed citations

Czapar, Anna E., Garazi Zulaika, Fredrick Otieno, et al.. (2024). Water source, latrine type, and rainfall are associated with detection of non-optimal and enteric bacteria in the vaginal microbiome: a prospective observational cohort study nested within a cluster randomized controlled trial. BMC Infectious Diseases. 24(1). 1419–1419.

Zulaika, Garazi, Fredrick Otieno, Linda Mason, et al.. (2024). Menstrual cups to reduce bacterial vaginosis and STIs through reduced harmful sexual and menstrual practices among economically vulnerable women: protocol of a single arm trial in western Kenya. BMC Public Health. 24(1). 3089–3089. 3 indexed citations

Zulaika, Garazi, Fredrick Otieno, Elizabeth Nyothach, et al.. (2024). “Whenever I help her, I am also expecting her vagina in return”: a qualitative analysis to explore men’s and adolescent girls’ perceptions of the impact of the COVID-19 pandemic on the sexual behaviour and health of adolescent girls in rural western Kenya. SHILAP Revista de lepidopterología. 2(2). e001214–e001214. 2 indexed citations

Otieno, Fredrick, et al.. (2024). ‘once they see blood then the mood for sex is spoiled’ A qualitative exploration of female sex worker’s male client views of menstruation, sex during menses and the menstrual disc. PLoS ONE. 19(12). e0315383–e0315383.

Mehta, Supriya D., Walter Agingu, Garazi Zulaika, et al.. (2023). Vaginal Microbial Network Analysis Reveals Novel Taxa Relationships among Adolescent and Young Women with Incident Sexually Transmitted Infection Compared with Those Remaining Persistently Negative over a 30-Month Period. Microorganisms. 11(8). 2035–2035. 2 indexed citations

Mehta, Supriya D., Garazi Zulaika, Walter Agingu, et al.. (2023). Analysis of bacterial vaginosis, the vaginal microbiome, and sexually transmitted infections following the provision of menstrual cups in Kenyan schools: Results of a nested study within a cluster randomized controlled trial. PLoS Medicine. 20(7). e1004258–e1004258. 19 indexed citations

10.

Bailey, Robert C., Susan M. Graham, Supriya D. Mehta, et al.. (2020). Enrolment characteristics associated with retention among HIV negative Kenyan gay, bisexual and other men who have sex with men enrolled in the Anza Mapema cohort study. Journal of the International AIDS Society. 23(S6). e25598–e25598. 11 indexed citations

11.

Mehta, Supriya D., Drew R. Nannini, Fredrick Otieno, et al.. (2020). Host Genetic Factors Associated with Vaginal Microbiome Composition in Kenyan Women. mSystems. 5(4). 35 indexed citations

12.

Gust, Deborah A., et al.. (2017). Factors associated with physical violence by a sexual partner among girls and women in rural Kenya.. PubMed. 7(2). 20406–20406. 15 indexed citations

13.

Gray, Simone C., et al.. (2017). Teen pregnancy in rural western Kenya: a public health issue. International Journal of Adolescence and Youth. 1–10. 18 indexed citations

14.

Adeyemo, Josiah, et al.. (2017). Scenario Analysis of Water Supply and Demand Using WEAP Model: A Case of Yala Catchment, Kenya. 5(4). 125–131.

15.

Otieno, Fredrick & Josiah Adeyemo. (2013). Performance evaluation of multi objective differential evolution algorithm (MDEA) strategies. International Journal of the Physical Sciences. 8(9). 315–326. 1 indexed citations

16.

Adeyemo, Josiah & Fredrick Otieno. (2010). Maximum Irrigation Benefit Using Multiobjective Differential Evolution Algorithm (MDEA). SSRN Electronic Journal. 10 indexed citations

17.

Otieno, Fredrick, et al.. (2010). Irrigation Canal Simulation Models and its Application to Large Scale Irrigation Schemes in South Africa: A Review. SSRN Electronic Journal. 2 indexed citations

18.

Masukume, Mike, Maurice S. Onyango, Aoyi Ochieng, & Fredrick Otieno. (2010). Nitrate removal from groundwater using modified natural zeolite. Water SA. 5. 9 indexed citations

19.

Adeyemo, Josiah & Fredrick Otieno. (2009). Optimizing planting areas using differential evolution (DE) and linear programming (LP). International Journal of the Physical Sciences. 4(4). 212–220. 16 indexed citations

20.

Otieno, Fredrick, et al.. (2009). Integrated water management of the Vaal River catchment. 2009. 37–40. 1 indexed citations

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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