Michael Farrell

49.5k total citations · 10 hit papers
785 papers, 29.0k citations indexed

About

Michael Farrell is a scholar working on Epidemiology, Public Health, Environmental and Occupational Health and Clinical Psychology. According to data from OpenAlex, Michael Farrell has authored 785 papers receiving a total of 29.0k indexed citations (citations by other indexed papers that have themselves been cited), including 212 papers in Epidemiology, 171 papers in Public Health, Environmental and Occupational Health and 81 papers in Clinical Psychology. Recurrent topics in Michael Farrell's work include Opioid Use Disorder Treatment (145 papers), Substance Abuse Treatment and Outcomes (130 papers) and HIV, Drug Use, Sexual Risk (62 papers). Michael Farrell is often cited by papers focused on Opioid Use Disorder Treatment (145 papers), Substance Abuse Treatment and Outcomes (130 papers) and HIV, Drug Use, Sexual Risk (62 papers). Michael Farrell collaborates with scholars based in United Kingdom, Australia and United States. Michael Farrell's co-authors include Grace M. Barnes, Paul Bebbington, Rachel Jenkins, Traolach Brugha, Howard Meltzer, Glyn Lewis, John Marsden, Louisa Degenhardt, Robert Ali and Nicola Singleton and has published in prestigious journals such as Cell, The Lancet and Journal of Biological Chemistry.

In The Last Decade

Michael Farrell

737 papers receiving 27.2k 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.

Validation of the alcohol, smoking and substance involvement screening test (ASSIST)

2008 828 citations Robert Ali, Michael Farrell et al. Addiction profile →
Global statistics on alcohol, tobacco and illicit drug use: 2017 status report

2018 697 citations Amy Peacock, Sarah Larney et al. Addiction profile →
Meta‐analysis of drug‐related deaths soon after release from prison

2010 509 citations Michael Farrell et al. Addiction profile →
Association of Opioid Agonist Treatment With All-Cause Mortality and Specific Causes of Death Among People With Opioid Dependence

2021 323 citations Thomas Santo, Brodie Clark et al. profile →
Cannabinoids for the treatment of mental disorders and symptoms of mental disorders: a systematic review and meta-analysis

2019 296 citations Emily Stockings, Gabrielle Campbell et al. profile →
Cannabis and cannabinoids for the treatment of people with chronic noncancer pain conditions: a systematic review and meta-analysis of controlled and observational studies

2018 293 citations Emily Stockings, Gabrielle Campbell et al. Pain profile →
Effects of medication-assisted treatment on mortality among opioids users: a systematic review and meta-analysis

2018 254 citations Louisa Degenhardt, Michael Farrell et al. profile →
New psychoactive substances: challenges for drug surveillance, control, and public health responses

2019 216 citations Amy Peacock, Raimondo Bruno et al. profile →
Epidemiology of injecting drug use, prevalence of injecting-related harm, and exposure to behavioural and environmental risks among people who inject drugs: a systematic review

2023 109 citations Louisa Degenhardt, Paige Webb et al. profile →
The prevalence of gambling and problematic gambling: a systematic review and meta-analysis

2024 61 citations Lucy Thi Tran, Samantha Colledge‐Frisby et al. profile →

Peers

Countries citing papers authored by Michael Farrell

Since Specialization

Citations

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

Fields of papers citing papers by Michael Farrell

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Michael Farrell

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

#	Work	Indexed citations
1	Data Resource Profile Update: The Opioid Agonist Treatment and Safety II (OATS II) Study, 2001–22, New South Wales, Australia 2025 ·International Journal of Epidemiology ·N. R. Jones, (unknown), Amy Gibson, Duong Thuy Tran, Thomas Santo, Chrianna Bharat, Michael Farrell, Louisa Degenhardt	2
2	Quantifying the impact of a large‐scale opioid agonist treatment program on suicide prevention in New South Wales, Australia: A data‐modeling study 2025 ·Addiction ·Thomas Santo, Antoine Chaillon, Natasha K. Martin, Matthew Hickman, N. R. Jones, Michael Farrell, Chrianna Bharat, Louisa Degenhardt, Annick Bórquez	1
3	Determinants of antimicrobial resistance in biosolids: A systematic review, database, and meta-analysis 2024 ·The Science of The Total Environment ·(unknown), (unknown), (unknown), Nicole L. Novak, Michael Farrell, (unknown), Emily Garner, Nicholas J. Ashbolt, Amy Pruden, Rebecca Logsdon Muenich, Treavor H. Boyer, Clinton F. Williams, Warish Ahmed, Rasha Maal‐Bared, Kerry A. Hamilton	5
4	Using Mixed Methods to Evaluate Modified Schema-Based Instruction in General Education Classrooms 2024 ·Research and Practice for Persons with Severe Disabilities ·(unknown), John McDonnell, Karen S. Karp, (unknown), (unknown), (unknown), (unknown), Michael Farrell	0
5	Preliminary evaluation of ChatGPT as a machine translation engine and as an automatic post-editor of raw machine translation output from other machine translation engines 2023 ·Michael Farrell	0
6	Current evidence of post-editese: differences between post-edited neural machine translation output and human translation revealed through human evaluation 2023 ·Michael Farrell	1
7	Prevalence of opioid dependence in New South Wales, Australia, 2014–16: Indirect estimation from multiple data sources using a Bayesian approach 2023 ·Addiction ·(unknown), Matthew Hickman, N. R. Jones, Sarah Larney, Michael Sweeting, (unknown), Michael Farrell, Louisa Degenhardt, Hayley E Jones	9
8	Agreement between self‐reported illicit drug use and biological samples: a systematic review and meta‐analysis 2023 ·Addiction ·Chrianna Bharat, Paige Webb, (unknown), Rebecca McKetin, Jason Grebely, Michael Farrell, Adam Holland, Matthew Hickman, Lucy Thi Tran, Brodie Clark, Amy Peacock, Shane Darke, Jih‐Heng Li, Louisa Degenhardt	62
9	Health and social characteristics of clients reporting amphetamine type substance use at entry to public alcohol and other drug services in New South Wales, Australia, 2016–2019 2022 ·Drug and Alcohol Review ·Emma Black, (unknown), Rachel Deacon, Nadine Ezard, Llewellyn Mills, Adrian Dunlop, Mark Montebello, David W. Reid, (unknown), Raimondo Bruno, Anthony Shakeshaft, Krista J. Siefried, Michael Farrell, Jennifer Holmes, Nicholas Lintzeris	2
10	Opioid agonist treatment and risk of death or rehospitalization following injection drug use–associated bacterial and fungal infections: A cohort study in New South Wales, Australia 2022 ·PLoS Medicine ·Thomas D. Brothers, Dan Lewer, N. R. Jones, Samantha Colledge‐Frisby, Michael Farrell, Matthew Hickman, Duncan Webster, Andrew Hayward, Louisa Degenhardt	13
11	Circumstances of death of opioid users being treated with naltrexone 2019 ·Addiction ·Shane Darke, Michael Farrell, Johan Duflou, Briony Larance, Julia Lappin	6
12	Cannabis and cannabinoids for the treatment of people with chronic noncancer pain conditions: a systematic review and meta-analysis of controlled and observational studies breakdown → 2018 ·Pain ·Emily Stockings, Gabrielle Campbell, Wayne Hall, Suzanne Nielsen, Dino Zagic, (unknown), Bridin Murnion, Michael Farrell, Megan Weier, Louisa Degenhardt	293
13	Hereditary cerebral haemorrhage with amyloidosis 2011 ·Lenus, The Irish Health Repository (Dr Steevens Hospital Library) ·(unknown), Donald M. O’Rourke, Jane Cryan, (unknown), Francesca Brett, Michael Farrell, Joan T. Moroney	2
14	Oral substitution treatment of injecting opioid users for prevention of HIV infection 2011 ·Cochrane Database of Systematic Reviews ·Linda Gowing, Michael Farrell, Reinhard Bornemann, Lynn E. Sullivan, Robert Ali	235
15	Ureteral fibroepithelial polyp in a dog 2006 ·Journal of Small Animal Practice ·Michael Farrell, Adrian Philbey, Ian Ramsey	17
16	The reluctance to seek treatment for neurotic disorders (Reprinted from Journal of Mental Health, vol 9, pgs 319-327, 2000) 2003 ·UCL Discovery (University College London) ·Howard Meltzer, Paul Bebbington, Traolach Brugha, Michael Farrell, Rachel Jenkins, Glyn Lewis	1
17	Socio-economic status, standard of living, and neurotic disorder (Reprinted from The Lancet, vol 352, pgs 605-609, 1998) 2003 ·UCL Discovery (University College London) ·Glyn Lewis, Paul Bebbington, Traolach Brugha, Michael Farrell, B. S. Gill, Rachel Jenkins, (unknown)	1
18	Lone mothers, social exclusion and depression 2003 ·Psychological Medicine ·(unknown), Paul Bebbington, Glyn Lewis, Traolach Brugha, Rachel Jenkins, Michael Farrell, Howard Meltzer	85
19	Unequal access and unmet need: neurotic disorders and the use of primary care services (Reprinted from Psychological Medicine, vol 30, pgs 1359-1367, 2000) 2003 ·UCL Discovery (University College London) ·Paul Bebbington, Herbert Y. Meltzer, Traolach Brugha, Michael Farrell, Rachel Jenkins, C. Ceresa, Gary D. Lewis	0
20	BJP volume 172 issue 4 Cover and Front matter 1998 ·The British Journal of Psychiatry ·(unknown), (unknown), Thomas Fahy, Alan Kerr, (unknown), Anne Farmer, (unknown), (unknown), George Stein, (unknown), Michael Farrell, (unknown), A. F. Cheng, (unknown), (unknown), Nicol Ferrier, (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown)	1

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