Andrew Copas

22.4k total citations · 9 hit papers
347 papers, 14.1k citations indexed

About

Andrew Copas is a scholar working on Infectious Diseases, General Health Professions and Epidemiology. According to data from OpenAlex, Andrew Copas has authored 347 papers receiving a total of 14.1k indexed citations (citations by other indexed papers that have themselves been cited), including 131 papers in Infectious Diseases, 124 papers in General Health Professions and 92 papers in Epidemiology. Recurrent topics in Andrew Copas's work include HIV/AIDS Research and Interventions (99 papers), Adolescent Sexual and Reproductive Health (87 papers) and HIV, Drug Use, Sexual Risk (47 papers). Andrew Copas is often cited by papers focused on HIV/AIDS Research and Interventions (99 papers), Adolescent Sexual and Reproductive Health (87 papers) and HIV, Drug Use, Sexual Risk (47 papers). Andrew Copas collaborates with scholars based in United Kingdom, United States and Sweden. Andrew Copas's co-authors include Margaret Johnson, Catherine H Mercer, Kaye Wellings, Bob Erens, Wendy Macdowall, Kevin Fenton, Pam Sonnenberg, Soazig Clifton, Clare Tanton and Sally McManus and has published in prestigious journals such as The Lancet, SHILAP Revista de lepidopterología and PLoS ONE.

In The Last Decade

Andrew Copas

331 papers receiving 13.5k 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.

Detection of Kaposi sarcoma associated herpesvirus in peripheral blood of HIV-infected individuals and progression to Kaposi's sarcoma

1995 702 citations Andrew Copas et al. The Lancet profile →
Sexual behaviour in Britain: partnerships, practices, and HIV risk behaviours

2001 629 citations Margaret Johnson, Catherine H Mercer et al. The Lancet profile →
Changes in sexual attitudes and lifestyles in Britain through the life course and over time: findings from the National Surveys of Sexual Attitudes and Lifestyles (Natsal)

2013 525 citations Catherine H Mercer, Bob Erens et al. The Lancet profile →
Sexual behaviour in Britain: early heterosexual experience

2001 516 citations Kaye Wellings, Kiran Nanchahal et al. The Lancet profile →
Quantifying, displaying and accounting for heterogeneity in the meta-analysis of RCTs using standard and generalised Qstatistics

2011 438 citations Andrew Copas et al. profile →
Sexual function in Britain: findings from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3)

2013 391 citations Catherine H Mercer, Andrew Copas et al. The Lancet profile →
The prevalence of unplanned pregnancy and associated factors in Britain: findings from the third National Survey of Sexual Attitudes and Lifestyles (Natsal-3)

2013 341 citations Kaye Wellings, Catherine H Mercer et al. The Lancet profile →
Mortality and causes of death in people diagnosed with HIV in the era of highly active antiretroviral therapy compared with the general population: an analysis of a national observational cohort

2016 273 citations Sara Croxford, Meaghan Kall et al. profile →
Reporting of stepped wedge cluster randomised trials: extension of the CONSORT 2010 statement with explanation and elaboration

2018 247 citations Karla Hemming, Monica Taljaard et al. profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Andrew Copas United Kingdom	57	4.5k	4.4k	4.1k	2.1k	1.9k	347	14.1k
Helen A. Weiss United Kingdom	80	4.8k 1.1×	5.0k 1.1×	6.8k 1.7×	2.0k 0.9×	3.4k 1.7×	456	21.3k
Sten H. Vermund United States	63	4.2k 0.9×	9.7k 2.2×	9.1k 2.3×	1.8k 0.9×	1.7k 0.9×	587	18.2k
Carlos del Rı́o United States	62	3.4k 0.8×	11.5k 2.6×	8.0k 2.0×	2.1k 1.0×	1.7k 0.9×	414	18.9k
Ann Kurth United States	50	2.9k 0.6×	3.2k 0.7×	3.1k 0.8×	1.2k 0.6×	1.8k 0.9×	187	11.4k
Mardge H. Cohen United States	62	2.6k 0.6×	7.5k 1.7×	4.4k 1.1×	854 0.4×	1.1k 0.6×	429	13.8k
Marleen Temmerman Belgium	59	5.5k 1.2×	3.4k 0.8×	3.8k 0.9×	2.7k 1.2×	3.2k 1.7×	410	17.3k
Landon Myer South Africa	68	6.5k 1.4×	10.9k 2.5×	6.3k 1.6×	1.4k 0.6×	2.4k 1.2×	505	18.7k
Catherine H Mercer United Kingdom	48	4.3k 1.0×	2.1k 0.5×	1.9k 0.5×	2.1k 1.0×	1.6k 0.8×	310	9.9k
Kaye Wellings United Kingdom	52	5.0k 1.1×	2.0k 0.5×	1.7k 0.4×	2.5k 1.2×	2.3k 1.2×	229	11.1k
Donald R. Hoover United States	66	2.5k 0.5×	7.0k 1.6×	5.5k 1.4×	738 0.3×	1.1k 0.6×	346	15.4k

Countries citing papers authored by Andrew Copas

Since Specialization

Citations

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

Fields of papers citing papers by Andrew Copas

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Andrew Copas

This figure shows the co-authorship network connecting the top 25 collaborators of Andrew Copas. A scholar is included among the top collaborators of Andrew Copas 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 Andrew Copas. Andrew Copas is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Hemming, Karla, Jacqueline Thompson, Richard Hooper, et al.. (2025). Guidelines for the content of statistical analysis plans in clinical trials: protocol for an extension to cluster randomized trials. Trials. 26(1). 72–72. 1 indexed citations

Fottrell, Edward, Harry Costello, Naveed Ahmed, et al.. (2025). Cognitive function and associations with demographic, socioeconomic, health and behavioural factors among older adult men and women in rural Bangladesh: a population-based cross-sectional study. The Lancet Regional Health - Southeast Asia. 36. 100575–100575. 1 indexed citations

Howarth, Alison, Hamish Mohammed, Fiona Burns, et al.. (2025). Uptake, positivity, and equity of online postal self-sampling for chlamydia testing in England: a retrospective cohort study. The Lancet Regional Health - Europe. 56. 101412–101412.

King, Carina, Sanjit Kumer Shaha, Abdul Kuddus, et al.. (2025). The burden of common mental disorders and their association with diabetes in rural Bangladesh: findings from a population-based cross-sectional study. Journal of Global Health. 15. 4220–4220.

Zenner, Dominik, Andrew Copas, Lara Goscé, et al.. (2024). Treatment of latent tuberculosis infection in migrants in primary careversussecondary care. European Respiratory Journal. 64(5). 2301733–2301733.

Vieira, Matias C., Sophie Relph, Kirstie Coxon, et al.. (2024). Perinatal outcomes after selective third‐trimester ultrasound screening for small‐for‐gestational age: prospective cohort study nested within DESiGN randomized controlled trial. Ultrasound in Obstetrics and Gynecology. 65(1). 30–38.

Hamada, Yohhei, Issa Sabi, Samuel H. Wilson, et al.. (2024). A pilot cross-sectional study of non-communicable diseases in TB household contacts. SHILAP Revista de lepidopterología. 1(4). 154–159. 1 indexed citations

King, Carina, Naveed Ahmed, Kohenour Akter, et al.. (2023). Community participatory learning and action cycle groups to reduce type 2 diabetes in Bangladesh (D:Clare): an updated study protocol for a parallel arm cluster randomised controlled trial. Trials. 24(1). 218–218. 1 indexed citations

Copas, Andrew, et al.. (2023). COVID-19 vaccine hesitancy among healthcare workers and its associated factors: A systematic review. European Journal of Public Health. 33(Supplement_2).

10.

Jarolimova, Jana, Natsayi Chimbindi, Nonhlanhla Okesola, et al.. (2023). Prevalence of Curable Sexually Transmitted Infections in a Population-Representative Sample of Young Adults in a High HIV Incidence Area in South Africa. Sexually Transmitted Diseases. 50(12). 796–803. 6 indexed citations

11.

Stirrup, Oliver, Madhumita Shrotri, Natalie Adams, et al.. (2023). Effectiveness of successive booster vaccine doses against SARS-CoV-2 related mortality in residents of long-term care facilities in the VIVALDI study. Age and Ageing. 52(8). 6 indexed citations

12.

Caille, Agnès, et al.. (2022). Recruitment and implementation challenges were common in stepped-wedge cluster randomized trials: Results from a methodological review. Journal of Clinical Epidemiology. 148. 93–103. 8 indexed citations

13.

Kahan, Brennan C, Fan Li, Andrew Copas, & Michael O. Harhay. (2022). Estimands in cluster-randomized trials: choosing analyses that answer the right question. International Journal of Epidemiology. 52(1). 107–118. 57 indexed citations

14.

Gilson, Richard, Diarmuid Nugent, Kate Bennett, et al.. (2020). Imiquimod versus podophyllotoxin, with and without human papillomavirus vaccine, for anogenital warts: the HIPvac factorial RCT. Health Technology Assessment. 24(47). 1–86. 21 indexed citations

15.

Croxford, Sara, Zhanxin Yin, Meaghan Kall, et al.. (2018). Where do we diagnose HIV infection? Monitoring new diagnoses made in nontraditional settings in England, Wales and Northern Ireland. HIV Medicine. 19(7). 465–474. 5 indexed citations

16.

Fakoya, Ibidun, Débora Álvarez-del Arco, Andrew Copas, et al.. (2017). Factors Associated With Access to HIV Testing and Primary Care Among Migrants Living in Europe: Cross-Sectional Survey. JMIR Public Health and Surveillance. 3(4). e84–e84. 19 indexed citations

17.

Mufuka, Juliet, Sergio Bautista‐Arredondo, Harsha Thirumurthy, et al.. (2016). Results of a cluster-randomized trial of non-financial incentives to increase uptake of couples counselling and testing among clients attending PSI mobile HIV services in rural Zimbabwe. UCL Discovery (University College London). 3 indexed citations

18.

Hayward, Andrew, Lili Wang, Nilu Goonetilleke, et al.. (2015). Natural T Cell–mediated Protection Against Seasonal and Pandemic Influenza. Results of the Flu Watch Cohort Study. American Journal of Respiratory and Critical Care Medicine. 191(12). 1422–1431. 210 indexed citations

19.

Aghaizu, Adamma, D Mercey, Andrew Copas, et al.. (2012). Who would use PrEP? Predictors of use among MSM in London. UCL Discovery (University College London). 1 indexed citations

20.

Johnson, Margaret, Catherine H Mercer, Bob Erens, et al.. (2001). Sexual behaviour in Britain: partnerships, practices, and HIV risk behaviours. The Lancet. 358(9296). 1835–1842. 629 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.

Explore authors with similar magnitude of impact