Catherine Orrell

8.9k citations
191 papers · 7.1k · 2 hit papers · h-index 45

Impact in

  • Infectious Diseases top 0.1%
    • HIV/AIDS Research and Interventions
    • HIV/AIDS drug development and treatment
    • Tuberculosis Research and Epidemiology
  • Virology top 1%
    • HIV Research and Treatment

Papers in

  • Infectious Diseases 171
    • HIV/AIDS Research and Interventions 115
    • HIV/AIDS drug development and treatment 66
    • Tuberculosis Research and Epidemiology 11
  • Virology 9
    • HIV Research and Treatment 9
Co-authors
Robin Wood (38 shared papers)Linda‐Gail Bekker (29 shared papers)Stephen D Lawn (13 shared papers)Landon Myer (23 shared papers)David R. Bangsberg (22 shared papers)Richard Kaplan (10 shared papers)Motasim Badri (3 shared papers)Gary Maartens (14 shared papers)
Journals
AIDS (15 papers)Journal of the International AIDS Society (14 papers)The Lancet HIV (14 papers)AIDS and Behavior (11 papers)PLoS ONE (9 papers)
Partner nations
South AfricaUnited StatesUnited Kingdom

In The Last Decade

Catherine Orrell

178 papers receiving 6.9k citations

Catherine Orrell's Hit Papers

Two Randomized Trials of Neutralizing Antibodies to Prevent HIV-1 Acquisition 2021 · 392 citations
3920+4+9Years since publication100200300400500
What are hit papers?

Paper score: A paper's citations measured against the top-1% bar of its own field and year: the square root of citations ÷ bar, so 1 means right at the bar and 2 means four times its citations. The bar blends the citation counts that enter the top 1% of the paper's subfields in its year (weighted 89.5%), of those subfields over all years (0.5%) and of its year across all fields (10%); a subfield and year with fewer than 400 papers takes its year's bar. Papers from 2026 are not scored yet: in an unfinished year, when a paper appeared matters more than how it is cited.

Hit paper: A paper cited at least 1.5× the top-1% bar of its field and year: a paper score of at least √1.5.

  1. 2021 New England Journal of Medicine
  2. 2012 Annals of Internal Medicine

Peers

Catherine Orrell
Comparison fields: 5 of 117
  • Infectious Diseases 5.7k
  • Virology 547
  • Family Practice 108
  • Emergency Medicine 162
  • General Health Professions 327
Replace Peter N. Mugyenyi with:
Peter N. Mugyenyi Uganda
Philippa Musoke Uganda
Benita Yip Canada
Cissy M Kityo Uganda
Paul J. Weidle United States
Breno Riegel Santos United States
Dawn K. Smith United States
Vanessa McMahan United States
Juan V. Guanira United States
Nathan P. Ford Switzerland
Catherine Orrell relative to Peter N. Mugyenyi Uganda Peter N. Mugyenyi's profile →
Citations per field
00.5×2×3×3.8×
Peter N. Mugyenyi · 1×
Citations per year

Countries citing papers authored by Catherine Orrell

Since Specialization
Citations

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

Fields of papers citing papers by Catherine Orrell

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 25 scholars most cited alongside Catherine Orrell, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Catherine Orrell Line = papers co-authored together Catherine Orrell links everyone, so they are left out of the graph.

All Works

20 of 20 papers shown

Showing the 20 most-cited of 191 papers — load more, or switch the sort, to bring in the rest.

#Work
1
Guidelines for Improving Entry Into and Retention in Care and Antiretroviral Adherence for Persons With HIV: Evidence-Based Recommendations From an International Association of Physicians in AIDS Care Panel
Annals of Internal Medicine ·Melanie Thompson, Michael J. Mugavero, K. Rivet Amico, Victoria A. Cargill, Larry W. Chang, Robert Gross, Catherine Orrell, Frederick Lewis Altice
Hit paper breakdown →		2012512
2
Two Randomized Trials of Neutralizing Antibodies to Prevent HIV-1 Acquisition
New England Journal of Medicine ·Lawrence Corey, Peter B. Gilbert, Michal Juraska, David C. Montefiori, Lynn Morris, Shelly Karuna, Srilatha Edupuganti, Nyaradzo Mavis Mgodi
Hit paper breakdown →		2021392
3
Early mortality among adults accessing a community-based antiretroviral service in South Africa: implications for programme design
AIDS ·Stephen D Lawn, Landon Myer, Catherine Orrell, Linda‐Gail Bekker, Robin Wood
2005313
4
Long-acting cabotegravir and rilpivirine dosed every 2 months in adults with HIV-1 infection (ATLAS-2M), 48-week results: a randomised, multicentre, open-label, phase 3b, non-inferiority study
The Lancet ·Edgar Turner Overton, Gary J. Richmond, Giuliano Rizzardini, Catherine Orrell, Нагимова Фирая Идиятулловна, Fritz Bredeek, Miguel García Deltoro, Susan Swindells
2020290
5
Adherence is not a barrier to successful antiretroviral therapy in South Africa
AIDS ·Catherine Orrell, David R. Bangsberg, Motasim Badri, Robin Wood
2003269
6
Nurse versus doctor management of HIV-infected patients receiving antiretroviral therapy (CIPRA-SA): a randomised non-inferiority trial
The Lancet ·Ian Sanne, Catherine Orrell, Matthew P. Fox, Francesca Conradie, Prudence Ive, Jennifer Zeinecker, Morna Cornell, Christie Heiberg
2010204
7
Determinants of Mortality and Nondeath Losses from an Antiretroviral Treatment Service in South Africa: Implications for Program Evaluation
Clinical Infectious Diseases ·Stephen D Lawn, Landon Myer, Guy Harling, Catherine Orrell, Linda‐Gail Bekker, Robin Wood
2006203
8
Mortality of HIV-Infected Patients Starting Antiretroviral Therapy in Sub-Saharan Africa: Comparison with HIV-Unrelated Mortality
PLoS Medicine ·Martin W. G. Brinkhof, Andrew Boulle, Ralf Weigel, Eugène Messou, Colin Douglas Mathers, Catherine Orrell, François Dabis, Margaret J. Pascoe
2009166
9
Improving antiretroviral therapy adherence in resource‐limited settings at scale: a discussion of interventions and recommendations
Journal of the International AIDS Society ·Jessica Elizabeth Haberer, Lora Sabin, K. Rivet Amico, Catherine Orrell, Omar Galárraga, Alexander C. Tsai, Rachel Vreeman, Ira B. Wilson
2017149
10
Linkage to HIV Care and Antiretroviral Therapy in Cape Town, South Africa
PLoS ONE ·Katharina Kranzer, Jennifer Zeinecker, Philip C. Ginsberg, Catherine Orrell, Nosindiso N. Kalawe, Stephen D Lawn, Linda‐Gail Bekker, Robin Wood
2010139
11
Rapid scale-up of a community-based HIV treatment service: programme performance over 3 consecutive years in Guguletu, South Africa.
PubMed ·Linda‐Gail Bekker, Landon Myer, Catherine Orrell, S D Lawn, Robin Wood
2006132
12
Doravirine versus ritonavir-boosted darunavir in antiretroviral-naive adults with HIV-1 (DRIVE-FORWARD): 48-week results of a randomised, double-blind, phase 3, non-inferiority trial
The Lancet HIV ·Jean‐Michel Molina, Kathleen Squires, Paul Edward Sax, Pedro Enrique Cahn, Johan J. Lombaard, Edwin DeJesus, Ming‐Tain Lai, Xia Xu
2018127
13
Conservation of First-Line Antiretroviral Treatment Regimen where Therapeutic Options are Limited
Antiviral Therapy ·Catherine Orrell, Guy Harling, Stephen D Lawn, Richard Kaplan, Matthew McNally, Linda‐Gail Bekker, Robin Wood
2007126
14
Substitutions Due to Antiretroviral Toxicity or Contraindication in the First 3 years of Antiretroviral Therapy in a Large South African Cohort
Antiviral Therapy ·Andrew Boulle, Catherine Orrell, Richard Kaplan, Gilles Van Cutsem, Matthew McNally, Katherine Hilderbrand, Landon Myer, Matthias Egger
2007122
15
Cryptococcocal immune reconstitution disease: a major cause of early mortality in a South African antiretroviral programme
AIDS ·Stephen D Lawn, Linda‐Gail Bekker, Landon Myer, Catherine Orrell, Robin Wood
2005115
16
Changing mortality risk associated with CD4 cell response to antiretroviral therapy in South Africa
AIDS ·Stephen D Lawn, Francesca Little, Linda‐Gail Bekker, Richard Kaplan, Elizabeth Campbel, Catherine Orrell, Robin Wood
2009115
17
Changes in Programmatic Outcomes During 7 Years of Scale-up at a Community-Based Antiretroviral Treatment Service in South Africa
JAIDS Journal of Acquired Immune Deficiency Syndromes ·Mweete Debra Nglazi, Stephen D Lawn, Richard Kaplan, Katharina Kranzer, Catherine Orrell, Robin Wood, Linda‐Gail Bekker
2010113
18
Public-Health and Individual Approaches to Antiretroviral Therapy: Township South Africa and Switzerland Compared
PLoS Medicine ·Olivia Keiser, Catherine Orrell, Matthias Egger, Robin Wood, Martin W. G. Brinkhof, Hansjakob Furrer, Gilles Van Cutsem, Bruno Ledergerber
2008110
19
Treatment Interruption in a Primary Care Antiretroviral Therapy Program in South Africa: Cohort Analysis of Trends and Risk Factors
JAIDS Journal of Acquired Immune Deficiency Syndromes ·Katharina Kranzer, James J. Lewis, Nathan Paul Ford, Jennifer Zeinecker, Catherine Orrell, Stephen D Lawn, Linda‐Gail Bekker, Robin Wood
2010105
20
Outcomes of antiretroviral treatment in programmes with and without routine viral load monitoring in southern Africa
AIDS ·Olivia Keiser, Thomas Gsponer, Andrew Boulle, Catherine Orrell, Sam Phiri, Nicola Maxwell, Mhairi Maskew, Hans Walter Prozesky
2011102

About Catherine Orrell

Catherine Orrell is a scholar working on Infectious Diseases, Virology, Family Practice, Epidemiology and Emergency Medicine, having authored 191 papers that have together received 7.1k indexed citations. Recurring topics across this work include HIV/AIDS Research and Interventions (115 papers), HIV/AIDS drug development and treatment (66 papers), Tuberculosis Research and Epidemiology (11 papers), HIV Research and Treatment (9 papers), Medication Adherence and Compliance (5 papers), HIV, Drug Use, Sexual Risk (5 papers), Mobile Health and mHealth Applications (5 papers) and Substance Abuse Treatment and Outcomes (3 papers). The work is most often cited by research in Infectious Diseases (5.7k citations), Virology (547 citations), Family Practice (108 citations), Emergency Medicine (162 citations) and General Health Professions (327 citations). Catherine Orrell has collaborated with scholars based in South Africa, United States and United Kingdom. Frequent co-authors include Robin Wood, Linda‐Gail Bekker, Stephen D Lawn, Landon Myer, David R. Bangsberg, Richard Kaplan, Motasim Badri, Gary Maartens, Guy Harling and Andrew Boulle. Their work appears in journals such as AIDS, Journal of the International AIDS Society, The Lancet HIV, AIDS and Behavior and PLoS ONE.

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

Breakdown of academic impact, for papers by Peter N. MugyenyiBreakdown of academic impact, for papers by Philippa MusokeBreakdown of academic impact, for papers by Benita YipBreakdown of academic impact, for papers by Cissy M KityoBreakdown of academic impact, for papers by Paul J. WeidleBreakdown of academic impact, for papers by Breno Riegel SantosBreakdown of academic impact, for papers by Dawn K. SmithBreakdown of academic impact, for papers by Vanessa McMahanBreakdown of academic impact, for papers by Juan V. GuaniraBreakdown of academic impact, for papers by Nathan P. Ford