My research aims to explore the impact of major Australian healthcare system policy changes on the use of medications and healthcare use, using various modelling and contemporary econometric methods.

Walsh, K. A, Plunkett, T., O'Brien, K. K., Teljeur, C., Smith, S. M., Harrington, P.,  Ryan, M. (2021). The relationship between procedural volume and patient outcomes for percutaneous coronary interventions: a systematic review and meta-analysis. HRB Open Research, 4(10). DOI: 10.12688/hrbopenres.13203.1 

Carty, P., O'Neill, M., Harrington, P., Plunkett, T., Smith, S., & Ryan, M. (2019). PNS274 Critically Appraising Systematic Reviews of Economic Evaluations: What, Why and How? An Exploratory Study Using an Irish National Clinical Guideline. Value in Health, 22(S3), S809. DOI: 10.1016/j.jval.2019.09.2174

O'Brien, K.K., Plunkett, T., Jordan, K., Walsh, K., Harrington, P., Smith, S., Ryan, M. (2019). PCV104 A Systematic Review of Organisational and Service Specification Recommendations for Centres Providing Percutaneous Coronary Interventions. Value in Health, 22(S3), S560. DOI: 10.1016/j.jval.2019.09.828

Plunkett, T., Carty, P., O'Neill, M., Harrington, P., Smith, S., & Ryan, M. (2019). PP09 Cost-Effectiveness Of Chronic Obstructive Pulmonary Disease Management. International Journal of Technology Assessment in Health Care, 35(S1), 38-39. DOI: 10.1017/S0266462319001855

Plunkett, T., Carty, P., O'Neill, M., Harrington, P., Smith, S., & Ryan, M. (2019). VP19 Cost-Effectiveness Of Combination Inhaled Long-Acting Bronchodilators. International Journal of Technology Assessment in Health Care, 35(S1), 80. DOI: 10.1017/S0266462319002952

Walsh, K., O'Brien, K.K., Plunkett, T., Harrington, P., Teljeur, C., Smith, S., Ryan, M. (2019). PCV100 The Relationship Between Procedural Volume and Postoperative Mortality for Percutaneous Coronary Interventions: A Systematic Review and Meta-analysis. Value in Health, 22(S3), S560. DOI: 10.1016/j.jval.2019.09.824

Walsh, K., Fawsitt, C.G., Marshall, L., Plunkett, T., O'Brien, K.K.,, Harrington, P., Smith, S., Ryan, M. (2019). PCV105 A Scoping Review of International Models of Adult Specialist Cardiac Networks. Value in Health, 22(S3), S560-561. DOI: 10.1016/j.jval.2019.09.829

International Health Economics Association (IHEA) 2025 Congress (Bali, 2025)

44th Annual Australian Health Economics Society (AHES) Conference (Adelaide, 2023) 

3rd Annual National Patient Safety Office (NPSO) Conference (Dublin, 2018)

4th Annual National Patient Safety Office (NPSO) Conference (Dublin, 2019)

Annual Health Technology Assessment International (HTAi) Conference (Cologne, 2019) 

5th Annual Structured Population and Health-services Research Education (SPHeRE) Conference (Dublin, 2019)

Janssen Pharmaceuticals Prize for overall highest grade in MSc Health Economics at NUI Galway