Thomas Clasen

20.0k total citations · 8 hit papers
218 papers, 10.4k citations indexed

About

Thomas Clasen is a scholar working on Nutrition and Dietetics, Pediatrics, Perinatology and Child Health and Water Science and Technology. According to data from OpenAlex, Thomas Clasen has authored 218 papers receiving a total of 10.4k indexed citations (citations by other indexed papers that have themselves been cited), including 177 papers in Nutrition and Dietetics, 58 papers in Pediatrics, Perinatology and Child Health and 45 papers in Water Science and Technology. Recurrent topics in Thomas Clasen's work include Child Nutrition and Water Access (171 papers), Global Maternal and Child Health (54 papers) and Fecal contamination and water quality (43 papers). Thomas Clasen is often cited by papers focused on Child Nutrition and Water Access (171 papers), Global Maternal and Child Health (54 papers) and Fecal contamination and water quality (43 papers). Thomas Clasen collaborates with scholars based in United States, United Kingdom and India. Thomas Clasen's co-authors include Sophie Boisson, Wolf‐Peter Schmidt, Sandy Cairncross, Matthew C. Freeman, Parimita Routray, Ghislaine Rosa, Oliver Cumming, Kate Medlicott, Belén Torondel and Joe Brown and has published in prestigious journals such as The Lancet, SHILAP Revista de lepidopterología and Environmental Science & Technology.

In The Last Decade

Thomas Clasen

211 papers receiving 10.0k citations

Hit Papers

5 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.

Burden of disease from inadequate water, sanitation and hygiene for selected adverse health outcomes: An updated analysis with a focus on low- and middle-income countries

2019 503 citations Thomas Clasen, Matthew C. Freeman et al. profile →
Interventions to improve water quality for preventing diarrhoea: systematic review and meta-analysis

2007 486 citations Thomas Clasen, Wolf‐Peter Schmidt et al. profile →
Effects of water quality, sanitation, handwashing, and nutritional interventions on diarrhoea and child growth in rural Kenya: a cluster-randomised controlled trial

2018 385 citations Thomas Clasen, Stephen P. Luby et al. profile →
Effectiveness of a rural sanitation programme on diarrhoea, soil-transmitted helminth infection, and child malnutrition in Odisha, India: a cluster-randomised trial

2014 362 citations Thomas Clasen, Sophie Boisson et al. profile →
Systematic review: Assessing the impact of drinking water and sanitation on diarrhoeal disease in low‐ and middle‐income settings: systematic review and meta‐regression

2014 348 citations Thomas Clasen, Matthew C. Freeman et al. profile →
Impact of drinking water, sanitation and handwashing with soap on childhood diarrhoeal disease: updated meta‐analysis and meta‐regression

2018 274 citations Matthew C. Freeman, Thomas Clasen et al. profile →
Interventions to improve water quality for preventing diarrhoea

2015 273 citations Thomas Clasen, Kelly Alexander et al. profile →
The impact of sanitation on infectious disease and nutritional status: A systematic review and meta-analysis

2017 236 citations Matthew C. Freeman, Joshua V. Garn et al. profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Thomas Clasen United States	54	7.4k	2.5k	2.0k	1.8k	1.4k	218	10.4k
Jamie Bartram United States	61	7.8k 1.1×	2.2k 0.9×	4.1k 2.0×	1.7k 0.9×	1.1k 0.7×	267	16.3k
Sandy Cairncross United Kingdom	51	6.4k 0.9×	2.3k 0.9×	1.4k 0.7×	1.6k 0.9×	1.5k 1.0×	185	10.4k
John M. Colford United States	57	5.0k 0.7×	2.2k 0.8×	2.5k 1.2×	1.2k 0.6×	1.2k 0.8×	184	12.9k
Matthew C. Freeman United States	45	5.2k 0.7×	2.5k 1.0×	677 0.3×	1.7k 0.9×	1.3k 0.9×	182	8.1k
Oliver Cumming United Kingdom	39	4.1k 0.5×	1.7k 0.7×	696 0.3×	1.2k 0.6×	1.1k 0.8×	161	6.0k
Stephen P. Luby United States	72	6.7k 0.9×	2.4k 0.9×	1.5k 0.7×	1.5k 0.8×	2.0k 1.4×	564	22.6k
Benjamin F. Arnold United States	41	3.2k 0.4×	1.2k 0.5×	1.1k 0.5×	800 0.4×	820 0.6×	214	5.8k
Paul Hunter United Kingdom	65	3.5k 0.5×	859 0.3×	1.8k 0.9×	660 0.4×	1.1k 0.8×	309	17.2k
Wolf‐Peter Schmidt United Kingdom	40	3.7k 0.5×	1.4k 0.6×	618 0.3×	1.0k 0.6×	973 0.7×	115	6.1k
Sophie Boisson United Kingdom	34	3.4k 0.5×	1.5k 0.6×	626 0.3×	1.0k 0.5×	757 0.5×	52	4.4k

Countries citing papers authored by Thomas Clasen

Since Specialization

Citations

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

Fields of papers citing papers by Thomas Clasen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Thomas Clasen

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

Nanavati, Amit A., et al.. (2025). A critical review on measurement tools of urban household and community resilience to disasters and environmental shocks and stressors among low- and middle-income countries: Theory, application, and guidance. International Journal of Disaster Risk Reduction. 118. 105267–105267. 2 indexed citations

Barker, Fiona, et al.. (2025). Resilience measurement for environmental shocks and stressors: scale development and psychometric assessment for coastal urban informal settlements in Fiji and Indonesia. PubMed. 3(1). 61–61.

Steenland, Kyle, Ajay Pillarisetti, Michael L. Johnson, et al.. (2025). Optimizing Exposure Measures in Large-Scale Household Air Pollution Studies: Results from the Multicountry HAPIN Trial. Environmental Science & Technology. 59(3). 1693–1699. 1 indexed citations

Liang, Donghai, Carolyn Jonas Accardi, Anaité Díaz-Artiga, et al.. (2024). Human Milk Composition Is Associated with Maternal Body Mass Index in a Cross-Sectional, Untargeted Metabolomics Analysis of Human Milk from Guatemalan Mothers. Current Developments in Nutrition. 8(5). 102144–102144. 1 indexed citations

Lévy, Karen, Joshua V. Garn, Sydney Hubbard, et al.. (2023). Study design and rationale for the PAASIM project: a matched cohort study on urban water supply improvements and infant enteric pathogen infection, gut microbiome development and health in Mozambique. BMJ Open. 13(3). e067341–e067341. 1 indexed citations

Rahman, Mahbubur, Mahfuza Islam, Solaiman Doza, et al.. (2022). Higher helminth ova counts and incomplete decomposition in sand-enveloped latrine pits in a coastal sub-district of Bangladesh. PLoS neglected tropical diseases. 16(6). e0010495–e0010495. 2 indexed citations

Sclar, Gloria D., et al.. (2022). Contextual and psychosocial factors influencing caregiver safe disposal of child feces and child latrine training in rural Odisha, India. PLoS ONE. 17(9). e0274069–e0274069. 9 indexed citations

Sclar, Gloria D., et al.. (2022). Study design and rationale for a cluster randomized trial of a safe child feces management intervention in rural Odisha, India. BMC Public Health. 22(1). 106–106. 7 indexed citations

Freeman, Matthew C., Maryann G. Delea, Joshua V. Garn, et al.. (2022). The impact of a demand-side sanitation and hygiene promotion intervention on sustained behavior change and health in Amhara, Ethiopia: A cluster-randomized trial. SHILAP Revista de lepidopterología. 2(1). e0000056–e0000056. 14 indexed citations

10.

Quinn, Ashlinn, Kendra N. Williams, Lisa M. Thompson, et al.. (2021). Fidelity and Adherence to a Liquefied Petroleum Gas Stove and Fuel Intervention during Gestation: The Multi-Country Household Air Pollution Intervention Network (HAPIN) Randomized Controlled Trial. International Journal of Environmental Research and Public Health. 18(23). 12592–12592. 11 indexed citations

11.

Bauza, Valerie, et al.. (2021). Experience of the COVID-19 Pandemic in Rural Odisha, India: Knowledge, Preventative Actions, and Impacts on Daily Life. International Journal of Environmental Research and Public Health. 18(6). 2863–2863. 21 indexed citations

12.

Williams, Kendra N., Lisa M. Thompson, Zoë Sakas, et al.. (2020). Designing a comprehensive behaviour change intervention to promote and monitor exclusive use of liquefied petroleum gas stoves for the Household Air Pollution Intervention Network (HAPIN) trial. BMJ Open. 10(9). e037761–e037761. 15 indexed citations

13.

Rosenthal, Joshua P., Raphael E. Arku, Jill Baumgartner, et al.. (2020). Systems Science Approaches for Global Environmental Health Research: Enhancing Intervention Design and Implementation for Household Air Pollution (HAP) and Water, Sanitation, and Hygiene (WASH) Programs. Environmental Health Perspectives. 128(10). 105001–105001. 27 indexed citations

14.

Simkovich, Suzanne, Lindsay J. Underhill, Miles A. Kirby, et al.. (2020). Design and conduct of facility-based surveillance for severe childhood pneumonia in the Household Air Pollution Intervention Network (HAPIN) trial. ERJ Open Research. 6(1). 308–2019. 4 indexed citations

15.

Naser, Abu Mohd, Mahbubur Rahman, Leanne Unicomb, et al.. (2020). Past Sodium Intake, Contemporary Sodium Intake, and Cardiometabolic Health in Southwest Coastal Bangladesh. Journal of the American Heart Association. 9(18). e014978–e014978. 2 indexed citations

16.

Sclar, Gloria D., et al.. (2019). Sanitation and Collective Efficacy in Rural Cambodia: The Value Added of Qualitative Formative Work for the Contextualization of Measurement Tools. International Journal of Environmental Research and Public Health. 17(1). 1–1. 20 indexed citations

17.

Delea, Maryann G., Gloria D. Sclar, Regine Haardörfer, et al.. (2018). Collective Efficacy: Development and Validation of a Measurement Scale for Use in Public Health and Development Programmes. International Journal of Environmental Research and Public Health. 15(10). 2139–2139. 20 indexed citations

18.

Sclar, Gloria D., Gauthami Penakalapati, Bethany A. Caruso, et al.. (2018). Exploring the relationship between sanitation and mental and social well-being: A systematic review and qualitative synthesis. Social Science & Medicine. 217. 121–134. 64 indexed citations

19.

Routray, Parimita, Belén Torondel, Marion W. Jenkins, Thomas Clasen, & Wolf‐Peter Schmidt. (2017). Processes and challenges of community mobilisation for latrine promotion under Nirmal Bharat Abhiyan in rural Odisha, India. BMC Public Health. 17(1). 453–453. 20 indexed citations

20.

Naser, Abu Mohd, Leanne Unicomb, Solaiman Doza, et al.. (2017). Stepped-wedge cluster-randomised controlled trial to assess the cardiovascular health effects of a managed aquifer recharge initiative to reduce drinking water salinity in southwest coastal Bangladesh: study design and rationale. BMJ Open. 7(9). e015205–e015205. 15 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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