🏆 Finalist — NIH Data Sharing Index (“S-Index”) Challenge

A. Sarah Walker

Health Protection Scotland

ORCID: 0000-0002-0412-8509

Also affiliated with University of Oxford, MRC Clinical Trials Unit at UCL, Oxford BioMedica (United Kingdom), University College London, Medical Research Council

Immunology and MicrobiologyMedicineBiochemistry, Genetics and Molecular Biology

Pilot corpus only

This score is computed over theSindex pilot corpus and does not cover the full scientific literature. Scores are relative to papers we have ingested — papers, authors, and institutions outside the pilot are not represented. Methodology.

Top 2%percentile
2.4Author DataRank

Indexed papers

2in pilot corpus
datarank_citation_only_1hop_v6· scope data_onlyMethodology
Why this DataRank?

An author's DataRank is the sum of the DataRanks of all 2 indexed papers attributed to them. A prolific author with many moderate-impact papers can outrank one with a single high-impact paper.

Author scores recompute whenever paper DataRanks are refreshed, so this number lags the underlying paper scores by at most one batch run.

Read the full methodology →

Top data-sharing exemplar

The highest-impact dataset this researcher has shared, ranked by DataRank — the single contribution doing the most to lift their data-sharing standing.

Ct threshold values, a proxy for viral load in community SARS-CoV-2 cases, demonstrate wide variation across populations and over time

medRxiv(2020)10.1101/2020.10.25.20219048
Top 9%
2.4DataRank
Top 9%36 citations

Emma Pritchard, Thomas House, Julie V. Robotham, Paul Birrell, Iain Bell +14 more

Papers

Driven by 11 papers — median percentile 91. Top paper: “Ct threshold values, a proxy for viral load in community SARS-CoV-2 cases, demonstrate wide variation across populations and over time”.

Ct threshold values, a proxy for viral load in community SARS-CoV-2 cases, demonstrate wide variation across populations and over time

medRxiv(2020)10.1101/2020.10.25.20219048
Top 9%
2.4DataRank
Top 9%36 citations

Emma Pritchard, Thomas House, Julie V. Robotham, Paul Birrell, Iain Bell +14 more

Ct threshold values, a proxy for viral load in community SARS-CoV-2 cases, demonstrate wide variation across populations and over time

eLife(2021)10.7554/elife.64683
N/A
0.724DataRank · unranked
124 citations

Emma Pritchard, Thomas House, Julie V. Robotham, Paul Birrell, Iain Bell +14 more

Strategic treatment optimization for HCV (STOPHCV1): a randomised controlled trial of ultrashort duration therapy for chronic hepatitis C

Wellcome Open Research(2021)10.12688/wellcomeopenres.16594.1
N/A
0.292DataRank · unranked
6 citations

Sarah Pett, Leanne McCabe, Christopher R. Jones, Richard Gilson, Sumita Verma +20 more

Highly replicating hepatitis C virus variants emerge in immunosuppressed patients causing severe disease

Nature Communications(2025)10.1038/s41467-025-67174-w
N/A
0.208DataRank · unranked
3 citations

Tomke Arand, Ha Gyu-Thomas Seong, Christian Heuss, Margaret Tulessin, Zhiqing Wang +49 more

Pharmacokinetics and pharmacodynamics of azithromycin in severe malaria bacterial co-infection in African children (TABS-PKPD): a protocol for a Phase II randomised controlled trial

Wellcome Open Research(2023)10.12688/wellcomeopenres.16968.2
N/A
0.165DataRank · unranked
2 citations

William Okiror, Hellen Mnjalla, Rita Muhindo, Sophie Uyoga, Ayub Mpoya +10 more

Cytomegalovirus Viremia Is Associated With Mortality Among Children With HIV Starting Antiretroviral Therapy in Sub-Saharan Africa

Clinical Infectious Diseases(2026)10.1093/cid/ciag354
N/A
0.104DataRank · unranked
1 citations

Ceri Evans, Kuda Mutasa, Dagmar Alber, Moira Spyer, Sandra Rukobo +10 more

Strategic Treatment Optimization for HCV (STOPHCV1): a randomised controlled trial of ultrashort duration therapy for chronic hepatitis C

medRxiv(2021)10.1101/2021.01.22.21250208
N/A
0DataRank · unranked
0 citations

Sarah Pett, Leanne McCabe, Christopher R. Jones, Richard Gilson, Sumita Verma +20 more

Risk Factors Associated with Carbapenemase-Producing Enterobacterales (CPE) Positivity in the Hospital Wastewater Environment

Applied and Environmental Microbiology(2020)10.1128/aem.01715-20
N/A
0DataRank · unranked
24 citations

Hardik I. Parikh, Kasi Vegesana, Nicole Stoesser, Katie E. Barry, Shireen Kotay +6 more

Community prevalence of SARS-CoV-2 in England from April to November, 2020: results from the ONS Coronavirus Infection Survey

The Lancet Public Health(2020)10.1016/s2468-2667(20)30282-6
N/A
0DataRank · unranked
210 citations

Thomas House, Emma Pritchard, Julie V. Robotham, Paul Birrell, Andrew Gelman +83 more

Pharmacokinetics and pharmacodynamics of azithromycin in severe malaria bacterial co-infection in African children (TABS-PKPD): a protocol for a Phase II randomised controlled trial

Wellcome Open Research(2021)10.12688/wellcomeopenres.16968.1
N/A
0DataRank · unranked
0 citations

William Okiror, Hellen Mnjalla, Rita Muhindo, Sophie Uyoga, Ayub Mpoya +10 more

A predictive algorithm for identifying children with sickle cell anemia among children admitted to hospital with severe anemia in Africa

American Journal of Hematology(2022)10.1002/ajh.26492
N/A
0DataRank · unranked
7 citations

Roisin Connon, Sarah Kiguli, Robert O. Opoka, Florence Alaroker, Sophie Uyoga +18 more