Professor Cristin Ryan
Professor in Practice of Pharmacy, Pharmacy
Publications and Further Research Outputs
Peer-Reviewed Publications
Odalovic, M., Gorman, A., Paul, A., McCallion, P., Burke, E.A., MacLachlan, M., McCarron, M., Henman C, M., Moran, M., O"Connell, J., Walsh, M., Shankar, R., Ryan, C. & O"Dwyer, M., Psychotropic medicines' prevalence, patterns and effects on cognitive and physical function in older adults with intellectual disability in Ireland: longitudinal cohort study, 2009-2020, BJPsych Open, 10, (2), 2024
Medication Reconciliation and Review: Theory, Practice and Evidence in, editor(s)Antonio Cherubini, Arduino A. Mangoni, Denis O"Mahony, Mirko Petrovic , Optimizing Pharmacotherapy in Older Patients, Switzerland, Springer Cham, 2023, pp91 - 104, [Grimes T, Ryan C]
Ni Sheachnasaigh E., Cadogan C., Strawbridge J., Sahm L.J., Ryan C., A scoping review of the methods and processes used by regulatory bodies to determine pharmacists" readiness for practice, Research in Social and Administrative Pharmacy, 2022
Rankin A., Gorman A., Cole J., Cadogan C.A., Barry H.E., Agus A., Logan D., McDowell C., Molloy G.J., Ryan C., Leathem C., Maxwell M., Brennan C., Gormley G.J., Ferrett A., McCarthy P., Fahey T., Hughes C.M., Murphy L., Kennedy G., Adams C., Martin L., Thompson J., Toase S., Boyd C., McQuillan R., O'Dwyer M., An external pilot cluster randomised controlled trial of a theory-based intervention to improve appropriate polypharmacy in older people in primary care (PolyPrime), Pilot and Feasibility Studies, 8, (1), 2022
Gorman A, Rankin A, Hughes C, O'Dwyer M, Ryan C., Theoretically derived interventions aimed at improving appropriate polypharmacy in primary care: A systematic review., Explor Res Clin Soc Pharm, 7, 2022, p100166
O'Shea J, Ryan C, Gallagher J, O'Brien C, Morris C, Dwyer E, Laughlin JM, Fitzpatrick L, O'Meara M, Kelly S, Knox S, Ledwidge M., Public perceptions of pharmacogenomic services in Ireland - Are people with chronic disease more likely to want service availability than those without? A questionnaire study., Explor Res Clin Soc Pharm, 8, 2022, p100182
O'Shea J., Ledwidge M., Gallagher J., Keenan C., Ryan C., Correction to: Pharmacogenetic interventions to improve outcomes in patients with multimorbidity or prescribed polypharmacy: a systematic review (The Pharmacogenomics Journal, (2022), 22, 2, (89-99), 10.1038/s41397-021-00260-6), Pharmacogenomics Journal, 22, (2), 2022, p146-
Lynch T., Ryan C., Bradley C., Foster D., Huff C., Hutchinson S., Lamberson N., Lynch L., Cadogan C., Supporting safe and gradual reduction of long-term benzodiazepine receptor agonist use: Development of the SAFEGUARDING-BZRAs toolkit using a codesign approach, Health Expectations, 25, (4), 2022, p1904 - 1918, p1904-1918
Lynch T, Ryan C, Cadogan CA., 'I just thought that it was such an impossible thing': A qualitative study of barriers and facilitators to discontinuing long-term use of benzodiazepine receptor agonists using the Theoretical Domains Framework., Health expectations : an international journal of public participation in health care and health policy, 25, (1), 2022, p355-365
Sadeq A, Strugaru M, Almutairi M, Stewart D, Ryan C, Grimes T, Interprofessional Interventions Involving Pharmacists and Targeting the Medicines Management Process Provided to Older People Residing in Nursing Homes: A Systematic Review and Meta-Analysis of Randomised Controlled Trials., Drugs & Aging, 39, 2022, p773-794
Al-Adawi R.M., Prabhu K.S., Stewart D., Ryan C., Abdelaziz H., Eledrisi M., Ibrahim M.I.M., Uddin S., Tonna A.P., The incidence and determinants of metabolic syndrome amongst a group of migrants to qatar: A prospective longitudinal observational cohort study 24-months post-migration, Journal of Clinical Medicine, 11, (1), 2022
Carolan A., Keating D., McWilliams S., Hynes C., O'Neill M., Boland F., Holland S., Strawbridge J., Ryan C., The development and validation of a medicines optimisation tool to protect the physical health of people with severe mental illness (OPTIMISE), BMC Psychiatry, 22, (1), 2022
O'Shea J, Ledwidge M, Gallagher J, Keenan C, Ryan C., Pharmacogenetic interventions to improve outcomes in patients with multimorbidity or prescribed polypharmacy: a systematic review., The pharmacogenomics journal, 22, (2), 2022, p89-99
Rankin A., Cadogan C.A., Barry H.E., Gardner E., Agus A., Molloy G.J., Gorman A., Ryan C., Leathem C., Maxwell M., Gormley G.J., Ferrett A., McCarthy P., Fahey T., Hughes C.M., An external pilot cluster randomised controlled trial of a theory-based intervention to improve appropriate polypharmacy in older people in primary care (PolyPrime): study protocol, Pilot and Feasibility Studies, 7, (1), 2021
Patton D.E., Pearce C.J., Cartwright M., Smith F., Cadogan C.A., Ryan C., Clark E., Francis J.J., Hughes C.M., A non-randomised pilot study of the Solutions for Medication Adherence Problems (S-MAP) intervention in community pharmacies to support older adults adhere to multiple medications, Pilot and Feasibility Studies, 7, (1), 2021
Watson C., Spiers J.P., Waterstone M., Russell-Hallinan A., Gallagher J., McDonald K., Ryan C., Gilmer J., Ledwidge M., Investigation of association of genetic variant rs3918242 of matrix metalloproteinase-9 with hypertension, myocardial infarction and progression of ventricular dysfunction in Irish Caucasian patients with diabetes: a report from the STOP-HF follow-up programme, BMC Cardiovascular Disorders, 21, (1), 2021
Patton D.E., Ryan C., Hughes C.M., Enhancing community pharmacists" provision of medication adherence support to older adults: A mixed methods study using the Theoretical Domains Framework, Research in Social and Administrative Pharmacy, 17, (2), 2021, p406 - 418, p406-418
Barry H.E., McGrattan M., Ryan C., Passmore A.P., Robinson A.L., Molloy G.J., Darcy C.M., Buchanan H., Hughes C.M., `I just take them because I know the people that give them to me": A theory-informed interview study of community-dwelling people with dementia and carers' perspectives of medicines management, International Journal of Geriatric Psychiatry, 2021
Sweeney C., Pharithi R.B., Kerr B., Ryan C., Ryan F., Collins L., Halley C., Barrett M., Watson C.J., McDonald K., Ledwidge M., NT-proBNP/BNP ratio for prognostication in European Caucasian patients enrolled in a heart failure prevention programme, ESC Heart Failure, 8, (6), 2021, p5081 - 5091, p5081-5091
Rankin A., Molloy G.J., Cadogan C.A., Barry H.E., Gorman A., Ryan C., Ferrett A., McCarthy P., Gormley G.J., Fahey T., Hughes C.M., 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, 22, (1), 2021
Cardwell K., Kerse N., Ryan C., Teh R., Moyes S.A., Menzies O., Rolleston A., Broad J., Hughes C.M., The Association Between Drug Burden Index (DBI) and Health-Related Outcomes: A Longitudinal Study of the `Oldest Old" (LiLACS NZ), Drugs and Aging, 37, (3), 2020, p205 - 213, p205-213
Barry H.E., Bedford L.E., McGrattan M., Ryan C., Passmore A.P., Robinson A.L., Molloy G.J., Darcy C.M., Buchanan H., Hughes C.M., Improving medicines management for people with dementia in primary care: A qualitative study of healthcare professionals to develop a theory-informed intervention, BMC Health Services Research, 20, (1), 2020
Barry HE, McGrattan M, Ryan C, Passmore AP, Robinson AL, Molloy GJ, Darcy CM, Buchanan H, Hughes CM., 'I just take them because I know the people that give them to me': A theory-informed interview study of community-dwelling people with dementia and carers' perspectives of medicines management, Int J Geriatr Psychiatry ., 23, 2020, p1-9
Lynch T, Ryan C, Hughes CM, Presseau J, Allen ZM, Bradley CP, Cadogan CA, Brief interventions targeting long"term benzodiazepine and Z"drug use in primary care: a systematic review and meta"analysis, Addiction, 115, (9), 2020, p1618--1639
Cardwell K., Kerse N., Hughes C.M., Teh R., Moyes S.A., Menzies O., Rolleston A., Broad J.B., Ryan C., Does potentially inappropriate prescribing predict an increased risk of admission to hospital and mortality? A longitudinal study of the 'oldest old', BMC Geriatrics, 20, (1), 2020
Al AdAwi R.M., Stewart D., Ryan C., Tonna A.P., A systematic review of pharmacist input to metabolic syndrome screening, management and prevention, International Journal of Clinical Pharmacy, 42, (4), 2020, p995 - 1015, p995-1015
Stewart D., MacLure K., Pallivalapila A., Dijkstra A., Wilbur K., Wilby K., Awaisu A., McLay J.S., Thomas B., Ryan C., El Kassem W., Singh R., Al Hail M.S.H., Views and experiences of decision-makers on organisational safety culture and medication errors, International Journal of Clinical Practice, 74, (9), 2020
Cadogan, C.A., Dharamshi, R., Fitzgerald, S., Corish, C.A., Castro, P.D., Ryan, C., A systematic scoping review of interventions to improve appropriate prescribing of oral nutritional supplements in primary care, Clinical Nutrition, 39, (3), 2020, p654-663
McGrattan M., Barry H.E., Ryan C., Cooper J.A., Passmore A.P., Robinson A.L., Molloy G.J., Darcy C.M., Buchanan H., Hughes C.M., The development of a Core Outcome Set for medicines management interventions for people with dementia in primary care, Age and Ageing, 48, (2), 2019, p260 - 269, p260-269
Carolan A., Keating D., Strawbridge J., Ryan C., Optimising prescribing for patients with severe mental illness: The need for criteria, Evidence-Based Mental Health, 22, (4), 2019, p139 - 141
Ryan C., Teh R., Moyes S., Wilkinson T., Connolly M., Rolleston A., Kepa M., Kerse N., Quality of prescribing predicts hospitalisation in octogenarians: Life and living in advanced age: A cohort study in New Zealand (LiLACS NZ), BMC Geriatrics, 19, (1), 2019
Pharmaceutical Care in the Aged in, editor(s)Filipa Alves da Costa, Aldo Alvarez Risco, Foppe van Mil , The Pharmacist Guide to Implementing Pharmaceutical Care, Springer International, 2019, [Ryan C, O'Dwyer M]
Sweeney C., Ryan F., Ledwidge M., Ryan C., McDonald K., Watson C., Pharithi R.B., Gallagher J., Natriuretic peptide-guided treatment for the prevention of cardiovascular events in patients without heart failure, Cochrane Database of Systematic Reviews, 2019, (10), 2019
Stewart D., Thomas B., MacLure K., Pallivalapila A., El Kassem W., Awaisu A., McLay J.S., Wilbur K., Wilby K., Ryan C., Dijkstra A., Singh R., Al Hail M., Perspectives of healthcare professionals in Qatar on causes of medication errors: A mixed methods study of safety culture, PLoS ONE, 13, (9), 2018
Spargo M., Ryan C., Downey D., Hughes C., Development of a core outcome set for trials investigating the long-term management of bronchiectasis, Chronic Respiratory Disease, 16, 2018
Stewart D., Thomas B., MacLure K., Wilbur K., Wilby K., Pallivalapila A., Dijkstra A., Ryan C., El Kassem W., Awaisu A., McLay J.S., Singh R., Hail M.A., Exploring facilitators and barriers to medication error reporting among healthcare professionals in Qatar using the theoretical domains framework: A mixed-methods approach, PLoS ONE, 13, (10), 2018
Patton D.E, Cadogan C.A, Ryan C, Francis J.J, Gormley G.J, Passmore P, Kerse N, Hughes C.M, Improving adherence to multiple medications in older people in primary care: Selecting intervention components to address patient-reported barriers and facilitators, Health Expectations, 21, (1), 2018, p138 - 148
Rankin A, Cadogan C.A, Ryan C, Clyne B, Smith S.M, Hughes C.M, Core Outcome Set for Trials Aimed at Improving the Appropriateness of Polypharmacy in Older People in Primary Care, 2018
Teh R.O., Menzies O.H., Connolly M.J., Doughty R.N., Wilkinson T.J., Pillai A., Lumley T., Ryan C., Rolleston A., Broad J.B., Kerse N., Patterns of multi-morbidity and prediction of hospitalisation and all-cause mortality in advanced age, Age and Ageing, 47, (2), 2018, p261 - 268, p261-268
Cadogan CA, Ryan C, Cahir C, Bradley CP, Bennett K, Benzodiazepine and Z-drug prescribing in Ireland: analysis of national prescribing trends from 2005-2015., British journal of clinical pharmacology, 2018
Cardwell K., Hughes C.M., Ryan C., Community pharmacists" views of using a screening tool to structure medicines use reviews for older people: findings from qualitative interviews, International Journal of Clinical Pharmacy, 40, (5), 2018, p1086 - 1095
Byrne C.J., Walsh C., Cahir C., Ryan C., Williams D.J., Bennett K., Anticholinergic and sedative drug burden in community-dwelling older people: A national database study, BMJ Open, 8, (7), 2018
Paudyal V., Cunningham S., Smith K.G., MacLure K., Ryan C., Cordina M., Methodological considerations in clinical outcomes assessment of pharmacy-based minor ailments management: A systematic review, PLoS ONE, 13, (10), 2018
Spargo M., Ryan C., Downey D., Hughes C., The association between polypharmacy and medication regimen complexity and antibiotic use in bronchiectasis, International Journal of Clinical Pharmacy, 40, (5), 2018, p1342 - 1348, p1342-1348
Cadogan CA, Ryan C, Gormley GJ, Francis JJ, Passmore P, Kerse N, Hughes CM, A feasibility study of a theory-based intervention to improve appropriate polypharmacy for older people in primary care., Pilot and feasibility studies, 2018
Page A.T, Clifford R.M, Potter K, Seubert L, McLachlan A.J, Hill X, King S, Clark V, Ryan C, Parekh N, Etherton-Beer C.D, Exploring the enablers and barriers to implementing the Medication Appropriateness Tool for Comorbid Health conditions during Dementia (MATCH-D) criteria in Australia: A qualitative study, BMJ Open, 7, (8), 2017
Millar A, Hughes C, Ryan C, Evaluating the prevalence of potentially inappropriate prescribing in older adults in intermediate care facilities: a cross-sectional observational study, International Journal of Clinical Pharmacy, 39, (3), 2017, p527 - 535
Holton A.E., Gallagher P.J., Ryan C., Fahey T., Cousins G., Consensus validation of the POSAMINO (POtentially Serious Alcohol-Medication INteractions in Older adults) criteria, BMJ Open, 7, (11), 2017
Patton D.E, Hughes C.M, Cadogan C.A, Ryan C.A, Theory-Based Interventions to Improve Medication Adherence in Older Adults Prescribed Polypharmacy: A Systematic Review, Drugs and Aging, 34, (2), 2017, p97 - 113
McGrattan M, Ryan C, Barry H.E, Hughes C.M, Interventions to Improve Medicines Management for People with Dementia: A Systematic Review, Drugs and Aging, 34, (12), 2017, p907 - 916
Millar A, Hughes C, Devlin M, Ryan C, A cross-sectional evaluation of community pharmacistsâ perceptions of intermediate care and medicines management across the healthcare interface, International Journal of Clinical Pharmacy, 38, (6), 2016, p1380 - 1389
Cadogan C.A, Ryan C, Hughes C, Making the case for change: What researchers need to consider when designing behavior change interventions aimed at improving medication dispensing, Research in Social and Administrative Pharmacy, 12, (1), 2016, p149 - 153
Hughes C.M, Cadogan C.A, Ryan C.A, Development of a pharmacy practice intervention: lessons from the literature, International Journal of Clinical Pharmacy, 38, (3), 2016, p601 - 606
Cadogan C.A, Ryan C, Francis J.J, Gormley G.J, Passmore P, Kerse N, Hughes C.M, Development of an intervention to improve appropriate polypharmacy in older people in primary care using a theory-based method, BMC Health Services Research, 16, (1), 2016
McCullough A.R, Ryan C, Macindoe C, Yii N, Bradley J.M, O'Neill B, Elborn J.S, Hughes C.M, Behavior change theory, content and delivery of interventions to enhance adherence in chronic respiratory disease: A systematic review, Respiratory Medicine, 116, 2016, p78 - 84
Hughes C.M, Cadogan C.A, Patton D, Ryan C.A, Pharmaceutical strategies towards optimising polypharmacy in older people, International Journal of Pharmaceutics, 512, (2), 2016, p360 - 365
Cooper JA, Moriarty F, Ryan C, Smith SM, Bennett K, Fahey T, Wallace E, Cahir C, Williams D, Teeling M, Hughes CM., Potentially inappropriate prescribing in two populations with differing socio-economic profiles: a cross-sectional database study using the PROMPT criteria., European Journal of Clinical Pharmacology, 72, (5), 2016, p583 - 591
Mooney K, Ryan C, Downey D.G, Pharmacistsâ perspectives on monitoring adherence to treatment in Cystic Fibrosis, International Journal of Clinical Pharmacy, 38, (2), 2016, p296 - 302
Cadogan C.A, Ryan C, Hughes C.M, Appropriate Polypharmacy and Medicine Safety: When Many is not Too Many, Drug Safety, 39, (2), 2016, p109 - 116
Oâ Sullivan M, Ryan C, Downey D.G, Hughes C.M, A change in behaviour: getting the balance right for research and policy, International Journal of Clinical Pharmacy, 38, (5), 2016, p1027 - 1031
Barry H.E, Cooper J.A, Ryan C, Passmore A.P, Robinson A.L, Molloy G.J, Darcy C.M, Buchanan H, Hughes C.M, Potentially Inappropriate Prescribing among People with Dementia in Primary Care: A Retrospective Cross-Sectional Study Using the Enhanced Prescribing Database, Journal of Alzheimer's Disease, 52, (4), 2016, p1503 - 1513
O'mahony D, O'sullivan D, Byrne S, O'connor M.N, Ryan C, Gallagher P, STOPP/START criteria for potentially inappropriate prescribing in older people: Version 2, Age and Ageing, 44, (2), 2015, p213 - 218
Cardwell K, Hughes C.M, Ryan C, The Association Between Anticholinergic Medication Burden and Health Related Outcomes in the â~Oldest Oldâ : A Systematic Review of the Literature, Drugs and Aging, 32, (10), 2015, p835 - 848
Mccullough A, Thomas E.T, Ryan C, Bradley J.M, O'Neill B, Elborn S, Hughes C, Interventions for enhancing adherence to treatment in adults with bronchiectasis, Cochrane Database of Systematic Reviews, 2015, (11), 2015
Bjerre L.M, Halil R, Catley C, Farrell B, Hogel M, Black C.D, Williams M, Ryan C, Manuel D.G, 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 crosssectional comparison of clinical and health administrative data, BMJ Open, 5, (10), 2015
Cooper J.A, Cadogan C.A, Patterson S.M, Kerse N, Bradley M.C, Ryan C, Hughes C.M, Interventions to improve the appropriate use of polypharmacy in older people: A Cochrane systematic review, BMJ Open, 5, (12), 2015
Mahony D.O., Sullivan D.O., Byrne S., O'Connor M.N., Ryan C., Gallagher P., Erratum: STOPP/START criteria for potentially inappropriate prescribing in older people: Version 2 [Age and Ageing, 44, 2, (2015) (213-218)] DOI: 10.1093/ageing/afu145, Age and Ageing, 47, (3), 2015, p489-
Millar A.N, Hughes C.M, Ryan C, "It's very complicated": A qualitative study of medicines management in intermediate care facilities in Northern Ireland, BMC Health Services Research, 15, (1), 2015
Bjerre LM, Ramsay T, Cahir C, Ryan C, Halil R, Farrell B, Thavorn K, Catley C, Hawken S, Gillespie U, Manuel DG, Assessing potentially inappropriate prescribing (PIP) and predicting patient outcomes in Ontario's older population: a population-based cohort study applying subsets of the STOPP/START and Beers' criteria in large health administrative databases., BMJ open, 5, (11), 2015, pe010146
McCullough A.R, Ryan C, O'Neill B, Bradley J.M, Elborn J.S, Hughes C.M, Defining the content and delivery of an intervention to Change AdhereNce to treatment in BonchiEctasis (CAN-BE): A qualitative approach incorporating the Theoretical Domains Framework, behavioural change techniques and stakeholder expert panels, BMC Health Services Research, 15, (1), 2015
Cadogan C.A, Ryan C, Francis J.J, Gormley G.J, Passmore P, Kerse N, Hughes C.M, Improving appropriate polypharmacy for older people in primary care: Selecting components of an evidence-based intervention to target prescribing and dispensing, Implementation Science, 10, (1), 2015
Cullinan S, Fleming A, O'Mahony D, Ryan C, O'Sullivan D, Gallagher P, Byrne S, Doctors' perspectives on the barriers to appropriate prescribing in older hospitalized patients: A qualitative study, British Journal of Clinical Pharmacology, 79, (5), 2015, p860 - 869
Millar A.N, Hughes C.M, Passmore A.P, Ryan C, Intermediate care: The role of medicines management, Drugs and Aging, 31, (1), 2014, p21 - 31
Patterson S.M, Cadogan C.A, Kerse N, Cardwell C.R, Bradley M.C, Ryan C, Hughes C, Interventions to improve the appropriate use of polypharmacy for older people, Cochrane Database of Systematic Reviews, 2014, (10), 2014
Ryan C, Appropriate treatment of depression in older community-dwelling adults, Journal of Primary Health Care, 6, (4), 2014, p268-
Ryan C, Hughes C, The 21st health services research and pharmacy practice conference: 'Coming of age: Rigour in pharmacy practice research' Belfast 16 and 17 April and 2015, International Journal of Pharmacy Practice, 22, (4), 2014, p237-
Hanna L.-A, Barry J, Donnelly R, Hughes F, Jones D, Laverty G, Parsons C, Ryan C, Using debate to teach pharmacy students about ethical issues, American Journal of Pharmaceutical Education, 78, (3), 2014
Hughes C.M, Cooper J.A, Ryan C, Going beyond the numbers - A call to redefine polypharmacy, British Journal of Clinical Pharmacology, 77, (6), 2014, p915 - 916
Ryan C, Ross S, Davey P, Duncan E.M, Francis J.J, Fielding S, Johnston M, Ker J, Lee A.J, MacLeod M.J, Maxwell S, McKay G.A, McLay J.S, Webb D.J, Bond C, Prevalence and causes of prescribing errors: The PRescribing Outcomes for Trainee Doctors Engaged in Clinical Training (PROTECT) study, PLoS ONE, 9, (1), 2014
Cooper JA, Ryan C, Smith SM, Wallace E, Bennett K, Cahir C, Williams D, Teeling M, Fahey T, Hughes CM; (The PROMPT Steering Group) , The development of the PROMPT (PRescribing Optimally in Middle-aged People's Treatments) criteria., BMC Health Services Research, 14, 2014, p13
Ross S, Ryan C, Duncan E.M, Francis J.J, Johnston M, Ker J.S, Lee A.J, MacLeod M.J, Maxwell S, McKay G, McLay J, Webb D.J, Bond C, Perceived causes of prescribing errors by junior doctors in hospital inpatients: A study from the PROTECT programme, BMJ Quality and Safety, 22, (2), 2013, p97 - 102
Ryan C, O'mahony D, Kennedy J, Weedle P, Cottrell E, Heffernan M, O'mahony B, Byrne S, Potentially inappropriate prescribing in older residents in irish nursing homes, Age and Ageing, 42, (1), 2013, p116 - 120
Ryan C, O'Mahony D, O'Donovan D.Ã", O'Grady E, Weedle P, Kennedy J, Byrne S, A comparison of the application of STOPP/START to patients' drug lists with and without clinical information, International Journal of Clinical Pharmacy, 35, (2), 2013, p230 - 235
Ryan C, Ross S, Davey P, Duncan E.M, Fielding S, Francis J.J, Johnston M, Ker J, Lee A.J, MacLeod M.J, Maxwell S, McKay G, McLay J, Webb D.J, Bond C, Junior doctors' perceptions of their self-efficacy in prescribing, their prescribing errors and the possible causes of errors, British Journal of Clinical Pharmacology, 76, (6), 2013, p980 - 987
Ryan C, Mccullough A, Elborn S, Hughes C, Pharmacist-led interventions for adults with asthma or COPD, Cochrane Database of Systematic Reviews, 2013, (4), 2013
Duncan E.M, Francis J.J, Johnston M, Davey P, Maxwell S, McKay G.A, McLay J, Ross S, Ryan C, Webb D.J, Bond C, Ker J, Lee A, Learning curves, taking instructions, and patient safety: Using a theoretical domains framework in an interview study to investigate prescribing errors among trainee doctors, Implementation Science, 7, (1), 2012
Ross S, Hamilton L, Ryan C, Bond C, Who makes prescribing decisions in hospital inpatients? An observational study, Postgraduate Medical Journal, 88, (1043), 2012, p507 - 510
Hamilton H, Gallagher P, Ryan C, Byrne S, O'Mahony D, Potentially inappropriate medications defined by STOPP criteria and the risk of adverse drug events in older hospitalized patients, Archives of Internal Medicine, 171, (11), 2011, p1013 - 1019
O'Mahony D, Hamilton H.J, Gallagher P.F, Ryan C, Byrne S, Adverse drug events due to potentially inappropriate medications - Reply, Archives of Internal Medicine, 171, (21), 2011, p1960-
Ryan C, OMahony D, Kennedy J, Weedle P, Byrne S, Appropriate prescribing in long-term care facilities, International Journal of Pharmacy Practice, 18, (SUPPL. 1), 2010, p5 - 6
O'Mahony D, Gallagher P, Ryan C, Byrne S, Hamilton H, Barry P, O'Connor M, Kennedy J, STOPP & START criteria: A new approach to detecting potentially inappropriate prescribing in old age, European Geriatric Medicine, 1, (1), 2010, p45 - 51
Ryan C, O'Mahony D, Byrne S, Application of STOPP and START criteria: Interrater reliability among pharmacists, Annals of Pharmacotherapy, 43, (7-8), 2009, p1239 - 1244
Ryan C, O'Mahony D, Kennedy J, Weedle P, Byrne S, Potentially inappropriate prescribing in an Irish elderly population in primary care, British Journal of Clinical Pharmacology, 68, (6), 2009, p936 - 947
Ryan C, O'Mahony D, Kennedy J, Weedle P, Barry P, Gallagher P, Byrne S, Appropriate prescribing in the elderly: An investigation of two screening tools, Beers criteria considering diagnosis and independent of diagnosis and improved prescribing in the elderly tool to identify inappropriate use of medicines in the elderly in primary care in Ireland, Journal of Clinical Pharmacy and Therapeutics, 34, (4), 2009, p369 - 376
Byrne S, Ryan C, O'Mahony D, Weedle P, Kennedy J, Ahern E, Inappropriate prescribing in the elderly: A review of primary care and nursing home prescriptions, International Journal of Pharmacy Practice, 16, (SUPPL. 1), 2008, pA36 - A37
Barry PJ, Gallagher P, Ryan C., Inappropriate Prescribing in Geriatric Patients, Curr Psychiatry Rep , 10, 2008, p37 - 43
Gallagher P, Ryan C, Byrne S, Kennedy J, O'Mahony D. , STOPP (Screening Tool of Older Person's Prescriptions) and START (Screening Tool to Alert doctors to Right Treatment). Consensus validation., Int J Clin Pharm & Ther , 46, 2008, p72 - 83
Gallagher PF, Barry PJ, Ryan C, Hartigan I, O'Mahony D., Inappropriate prescribing in an acutely ill population of elderly patients as determined by Beers' Criteria., Age and Ageing, (37), 2008, p96 - 101
Barry PJ, Gallagher P, Ryan C, O'Mahony D., START (Screening tool to alert doctors to the right treatment)- an evidence based screening tool to detect prescribing omissions in elderly patients. , Age and Ageing , 36, 2007, p632 - 638
Recognition
Memberships
Member of the Pharmaceutical Society of Ireland