Cristín Ryan

11.1k citations

130 papers · 7.5k indexed · 5 hit papers · h-index 35

Impact in

Geriatrics and Gerontology top 0.01%
- Pharmaceutical Practices and Patient Outcomes
Family Practice top 0.02%
- Medication Adherence and Compliance

Papers in

Geriatrics and Gerontology 86
- Pharmaceutical Practices and Patient Outcomes 86
Family Practice 22
- Medication Adherence and Compliance 19

Co-authors: Denis O’Mahony Stephen Byrne Paul Gallagher Carmel Hughes Cathal Cadogan Julia Kennedy David O’Sullivan Marie O’Connor
Journals: International Journal of Clinical Pharmacy (13 papers)Cochrane Database of Systematic Reviews (8 papers)BMJ Open (7 papers)Research in Social and Administrative Pharmacy (6 papers)Age and Ageing (6 papers)
Partner nations: Ireland United Kingdom New Zealand

In The Last Decade

Cristín Ryan

115 papers receiving 7.3k citations

Hit Papers

5 papers align trajectories log scale

Interventions to improve the appropriate use of polypharmacy for older people 2018 · 326 citations

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if any of the following hold:

it has ≥500 total citations;
it reaches ≥1.5× the top-1% citation threshold for papers in the same subfield and year (the threshold is the minimum needed to enter the top 1%, not the average within it);
it reaches the top citation threshold in at least one of its specific research topics.

2018 Cochrane Database of Systematic Reviews
2014 Age and Ageing
2014 Cochrane Database of Systematic Reviews
2011 Archives of Internal Medicine
2008 International Journal of Clinical Pharmacology and Therapeutics

Peers

Countries citing papers authored by Cristín Ryan

Since Specialization

Citations

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

Fields of papers citing papers by Cristín Ryan

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network

The 25 scholars most cited alongside Cristín Ryan, 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 Cristín Ryan Line = papers co-authored together Cristín Ryan links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Does knowledge co-production influence adaptive capacity?: A framework for evaluation Environmental Science & Policy ·柳阳辉, Corrine Nöel Knapp, Jewell Lund, Weston M. Eaton, B. E. Ewers, Н. П. Король, Bart Geerts, Daniel Peñalver Hernando, Subhan Mugni, Albaba, Masahiro FURUKAWA, Cristín Ryan, Bryan N. Shuman, Thomas Henning, David G. Williams	2025	2
2	Central Blood Pressure and Augmentation Index in Older Adults With Intellectual Disabilities Journal of Intellectual Disability Research ·Thessa I.M. Hilgenkamp, Alyt Oppewal, Ahmed Sulaiman Dazumi, A. Paul, Cristín Ryan, Neon C. Rosell, Margaret McCarron, Philip McCallion, Dederieke A. M. Festen, Frances O’Brien	2025	0
3	Point-of-caRE DiagnostICs for respiraTOry tRact infectionS (PREDICTORS) study: developing guidance for using C-reactive protein point-of-care tests in the management of lower respiratory tract infections in primary care using a Delphi consensus technique BMJ Open ·Rebeca Vieira, Carmel Hughes, Gerard J. Molloy, Cathal Cadogan, Akke Vellinga, Tom Fahey, Cristín Ryan	2025	0
4	‘We need more support and doctors that understand the process of tapering …’: A content analysis of free‐text responses to a questionnaire on discontinuing long‐term benzodiazepine receptor agonist use Health Expectations ·Thomas R. Lynch, Cristín Ryan, B. J. Doranz, D. SAN, Cathal Cadogan	2024	3
5	Estimating the prevalence of potential and actionable drug‐gene interactions in Irish primary care: A cross‐sectional study British Journal of Clinical Pharmacology ·Laura E. Johnson, Elaney Youssef, Rebeca Vieira, Tracey Thornley, Joseph Gallagher, Mark Ledwidge, Cristín Ryan	2024	2
6	Can we do better? Sustainability and efficiency in intervention development and implementation International Journal of Pharmacy Practice ·Carmel Hughes, Cristín Ryan	2024	1
7	Behaviour change interventions addressing antibiotic treatment seeking behaviour for respiratory tract infections in primary care settings: A scoping review protocol HRB Open Research ·Zakhar V. Makridin, 汪艳红, Eimear Morrissey, Andrew W. Murphy, Greg Sheaf, Cristín Ryan, Gerard J. Molloy	2024	0
8	Pharmacogenetic interventions to improve outcomes in patients with multimorbidity or prescribed polypharmacy: a systematic review The Pharmacogenomics Journal ·Rebeca Vieira, Mark Ledwidge, J. Gallagher, Catherine M. Keenan, Cristín Ryan	2022	16
9	A scoping review of the methods and processes used by regulatory bodies to determine pharmacists’ readiness for practice Research in Social and Administrative Pharmacy ·Raniere Alislan Almeida Cordeiro, Cathal Cadogan, Judith Strawbridge, Laura J. Sahm, Cristín Ryan	2022	5
10	Protocol for a process evaluation of an external pilot cluster randomised controlled trial of a theory-based intervention to improve appropriate polypharmacy in older people in primary care: the PolyPrime study Trials ·Audrey Rankin, Gerard J. Molloy, Cathal Cadogan, Heather E. Barry, Solomon Hailemariam, Cristín Ryan, О.А. Леонтьева, صفیاله طاهریاوروند, Gerard Gormley, Tom Fahey, Carmel Hughes, (unknown)	2021	2
11	NT-proBNP/BNP Ratio for Prognostication in European Caucasian Patients Enrolled in a Heart Failure Prevention Programme ESC Heart Failure ·Ilíana Artíles Olivera, José Augusto dos Santos Batista, 辛毅, Cristín Ryan, Fiona Ryan, John I. Nawankwo, Carmel Halley, John H. Wells, Chris Watson, Kenneth McDonald, Mark Ledwidge	2021	5
12	A qualitative study to refine a theory-based intervention to improve appropriate polypharmacy in older people in primary care Research Portal (Queen's University Belfast) ·Solomon Hailemariam, Audrey Rankin, Heather E. Barry, Cathal Cadogan, Gerard Gormley, Tom Fahey, Cristín Ryan, Evie Gardner, Ashley Agus, Claire Leathem, Evi Evi Nugraha Nuriman, Gerard J. Molloy, О.А. Леонтьева, صفیاله طاهریاوروند, Carmel Hughes	2020	2
13	A pilot study of the S-MAP (Solutions for Medication Adherence Problems) intervention for older adults prescribed polypharmacy in primary care: Study protocol UCL Discovery (University College London) ·Hailey Schaffold, Jill Francis, Ella Clark, Felicity Smith, Soh-ichiro NISHI, Cristín Ryan, Yao He	2019	1
14	Development of a core outcome set for use in interventions aimed at improving appropriate polypharmacy in older people in primary care International Journal of Pharmacy Practice ·Audrey Rankin, Cathal Cadogan, Cristín Ryan, Barbara Clyne, Susan M. Smith, Carmel Hughes	2018	4
15	Consensus validation of the POSAMINO (POtentially Serious Alcohol–Medication INteractions in Older adults) criteria BMJ Open ·Hoo Yi Wang, Paul Gallagher, Cristín Ryan, Tom Fahey, Gráinne Cousins	2017	20
16	Behavior change theory, content and delivery of interventions to enhance adherence in chronic respiratory disease: A systematic review Respiratory Medicine ·Amanda McCullough, Cristín Ryan, Nishimaki Yuta, Castellino Joshua, Judy Bradley, Brenda O’Neill, J.S. Elborn, Carmel Hughes	2016	19
17	Interventions to improve the appropriate use of polypharmacy in older people: a Cochrane systematic review BMJ Open ·J Cooper, Cathal Cadogan, Susan Patterson, Ngaire Kerse, Marie C. Bradley, Cristín Ryan, Carmel Hughes	2015	235
18	Potentially inappropriate prescribing (PIP) in long-term care (LTC) patients: validation of the 2014 STOPP-START and 2012 Beers criteria in a LTC population—a protocol for a cross-sectional comparison of clinical and health administrative data BMJ Open ·Lise M. Bjerre, Melissa Hallenbeck, Christina Catley, Barbara Farrell, Matthew Hogel, Cody Black, Coipeau, Cristín Ryan, Douglas G. Manuel	2015	12
19	Appropriate Polypharmacy and Medicine Safety: When Many is not Too Many Drug Safety ·Cathal Cadogan, Cristín Ryan, Carmel Hughes	2015	192
20	Improving appropriate polypharmacy for older people in primary care: selecting components of an evidence-based intervention to target prescribing and dispensing Implementation Science ·Cathal Cadogan, Cristín Ryan, Jill Francis, Gerard Gormley, Peter Passmore, Ngaire Kerse, Carmel Hughes	2015	57

About Cristín Ryan

Cristín Ryan is a scholar working on Geriatrics and Gerontology, Family Practice, Applied Microbiology and Biotechnology, Emergency Medical Services and Economics and Econometrics, having authored 130 papers that have together received 7.5k indexed citations. Recurring topics across this work include Pharmaceutical Practices and Patient Outcomes (86 papers), Health Systems, Economic Evaluations, Quality of Life (47 papers), Medication Adherence and Compliance (19 papers), Patient Safety and Medication Errors (12 papers), Health Policy Implementation Science (10 papers), Delphi Technique in Research (9 papers), Blood Pressure and Hypertension Studies (8 papers) and Pharmaceutical studies and practices (8 papers). The work is most often cited by research in Geriatrics and Gerontology (6.1k citations), Family Practice (1.9k citations), Applied Microbiology and Biotechnology (449 citations), Economics and Econometrics (3.1k citations) and Emergency Medical Services (768 citations). Cristín Ryan has collaborated with scholars based in Ireland, United Kingdom and New Zealand. Frequent co-authors include Denis O’Mahony, Stephen Byrne, Paul Gallagher, Carmel Hughes, Cathal Cadogan, Julia Kennedy, David O’Sullivan, Paul Gallagher, Marie O’Connor and David O’Mahony. Their work appears in journals such as International Journal of Clinical Pharmacy, Cochrane Database of Systematic Reviews, BMJ Open, Research in Social and Administrative Pharmacy and Age and Ageing.

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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