Sumiyo Okawa

76 papers and 953 indexed citations i.

About

Sumiyo Okawa is a scholar working on Public Health, Environmental and Occupational Health, Pediatrics, Perinatology and Child Health and Epidemiology. According to data from OpenAlex, Sumiyo Okawa has authored 76 papers receiving a total of 953 indexed citations (citations by other indexed papers that have themselves been cited), including 23 papers in Public Health, Environmental and Occupational Health, 18 papers in Pediatrics, Perinatology and Child Health and 17 papers in Epidemiology. Recurrent topics in Sumiyo Okawa’s work include Global Maternal and Child Health (15 papers), Maternal Mental Health During Pregnancy and Postpartum (13 papers) and Child Nutrition and Water Access (8 papers). Sumiyo Okawa is often cited by papers focused on Global Maternal and Child Health (15 papers), Maternal Mental Health During Pregnancy and Postpartum (13 papers) and Child Nutrition and Water Access (8 papers). Sumiyo Okawa collaborates with scholars based in Japan, Ghana and United States. Sumiyo Okawa's co-authors include Masamine Jimba, Takahiro Tabuchi, Kimiyo Kikuchi, Junko Yasuoka, Akira Shibanuma, Keiko Nanishi, Abraham Hodgson, Margaret Gyapong, Abraham Oduro and Evelyn Ansah and has published in prestigious journals such as PLoS ONE, Scientific Reports and PLoS Medicine.

In The Last Decade

Co-authorship network of co-authors of Sumiyo Okawa i

Fields of papers citing papers by Sumiyo Okawa

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Sumiyo Okawa

Since Specialization
Citations

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

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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2025