Dr Keshia De Guzman
Honorary Fellow/Lecturer
School of Pharmacy and Pharmaceutical Sciences
Affiliate of Centre for Online Health
Centre for Online Health
Publications
Journal Articles
Gallegos-Rejas, Victor M., De Guzman, Keshia R., Kelly, Jaimon T., Smith, Anthony C. and Thomas, Emma E. (2025). Strategies to improve telehealth access for culturally and linguistically diverse communities: a systematic review. Journal of Public Health. doi: 10.1093/pubmed/fdaf030
De Guzman, Keshia R., Long, Duncan, Theodos, Alexander, Karlovic, Alexandra and Falconer, Nazanin (2025). Assessment of a Geriatric Evaluation and Management in the Home (GEMITH) service at a quaternary hospital: a retrospective observational study. Journal of Pharmacy Practice, 38 (1), 28-34. doi: 10.1177/08971900241262376
Snoswell, Centaine L., De Guzman, Keshia, Neil, Laura J., Isaacs, Tara, Mendis, Roshni, Taylor, Monica L. and Ryan, Marissa (2025). Synchronous telepharmacy models of care for adult outpatients: a systematic review. Research in Social and Administrative Pharmacy, 21 (1), 1-21. doi: 10.1016/j.sapharm.2024.10.005
Deutscher, Benjamin, De Guzman, Keshia, La Caze, Adam and Falconer, Nazanin (2024). A scoping review of the clinical utility of adverse drug reaction causality analysis tools for use in the hospital setting. Expert Review of Clinical Pharmacology, 17 (12), 1-22. doi: 10.1080/17512433.2024.2429677
Scott, Ian A., De Guzman, Keshia R., Falconer, Nazanin, Canaris, Stephen, Bonilla, Oscar, McPhail, Steven M., Marxen, Sven, Van Garderen, Aaron, Abdel-Hafez, Ahmad and Barras, Michael (2024). Evaluating automated machine learning platforms for use in healthcare. JAMIA Open, 7 (2) ooae031, ooae031. doi: 10.1093/jamiaopen/ooae031
Snoswell, Centaine L., Chelberg, Georgina, De Guzman, Keshia R., Haydon, Helen M., Thomas, Emma E., Caffery, Liam J. and Smith, Anthony C. (2024). Corrigendum to ‘‘The clinical effectiveness of telehealth: A systematic review of meta-analyses from 2010 to 2019.’’. Journal of Telemedicine and Telecare, 30 (10), 1667-1667. doi: 10.1177/1357633X241262510
De Guzman, Keshia R., Smith, Anthony C. and Snoswell, Centaine L. (2024). General practitioner preferences for telehealth consultations in Australia: a pilot survey and discrete choice experiment. Primary Health Care Research and Development, 25 e28, e28. doi: 10.1017/s1463423624000136
Leatham, Samantha J., Winckel, Karl R. and De Guzman, Keshia R. (2024). Management and pharmacological treatment of peripheral arterial disease. Journal of Pharmacy Practice, 37 (6), 8971900241250084-1345. doi: 10.1177/08971900241250084
Azar, Rachel, Chan, Rachel, Sarkisian, Miriam, Burns, Robert D., Marcin, James P., Gotthardt, Christine, De Guzman, Keshia R., Rosenthal, Jennifer L. and Haynes, Sarah C. (2024). Adapting telehealth to address health equity: Perspectives of primary care providers across the United States. Journal of Telemedicine and Telecare. doi: 10.1177/1357633x241238780
Snoswell, Centaine L, De Guzman, Keshia R and Barras, Michael (2024). Advanced-scope pharmacist roles in medical outpatient clinics: a cost-consequence analysis. Internal Medicine Journal, 54 (3), 404-413. doi: 10.1111/imj.16280
Di Mauro, Anna L, Austin, Lewis J, Zande, Jasmine, Winckel, Karl, Neale, Rodney and De Guzman, Keshia R (2024). Real-world comparative effectiveness of dalteparin and enoxaparin for venous thromboembolism prophylaxis. Blood coagulation and fibrinolysis, 35 (3), 101-107. doi: 10.1097/mbc.0000000000001281
De Guzman, Keshia R., Gavanescu, Danielle, Smith, Anthony C. and Snoswell, Centaine L. (2024). Economic evaluations of telepharmacy services in non-cancer settings: a systematic review. Research in Social and Administrative Pharmacy, 20 (3), 246-254. doi: 10.1016/j.sapharm.2024.01.002
van Oosterom, Nameer, De Guzman, Keshia R., Winckel, Karl, Johnson, Anissa and Falconer, Nazanin (2023). Evaluation of the quality and safety of venous thromboembolism prophylaxis among gastroenterology inpatients at a tertiary hospital in australia. Hospital Pharmacy, 58 (6), 001857872311723-604. doi: 10.1177/00185787231172385
Kelly, Jaimon T., Law, Lynette, De Guzman, Keshia R., Hickman, Ingrid J., Mayr, Hannah L., Campbell, Katrina L., Snoswell, Centaine L. and Erku, Daniel (2023). Cost-effectiveness of telehealth-delivered nutrition interventions: a systematic review of randomized controlled trials. Nutrition reviews, 81 (12), 1599-1611. doi: 10.1093/nutrit/nuad032
Paradissis, Chariclia, De Guzman, Keshia R., Barras, Michael, La Caze, Adam, Winckel, Karl, Taufatofua, Natasha and Falconer, Nazanin (2023). Experiences and learnings of pharmacists, students, and clinical assistants working collaboratively in a COVID-19 vaccination clinic: a qualitative study. Exploratory Research in Clinical and Social Pharmacy, 9 100241, 100241. doi: 10.1016/j.rcsop.2023.100241
Snoswell, Centaine L., De Guzman, Keshia R. and Barras, Michael (2023). Pharmacists reducing medication risk in medical outpatient clinics: a retrospective study of 18 clinics. Internal Medicine Journal, 53 (1) imj.15504, 95-103. doi: 10.1111/imj.15504
De Guzman, Keshia R., Snoswell, Centaine L., Caffery, Liam J., Wallis, Katharine A. and Smith, Anthony C. (2022). Costs to the Medicare Benefits Schedule for general practitioner consultations: A time-series analysis. Journal of Telemedicine and Telecare, 28 (10), 726-732. doi: 10.1177/1357633X221122135
De Guzman, Keshia R., Snoswell, Centaine L. and Smith, Anthony C. (2022). The impact of telehealth policy changes on general practitioner consultation activity in Australia: a time-series analysis. Australian Health Review, 46 (5), 605-612. doi: 10.1071/ah22058
De Guzman, Keshia R., Snoswell, Centaine L. and Smith, Anthony C. (2022). Telehealth sustainability after COVID-19 – can you see me by video?. Australian Health Review, 46 (5), 642-643. doi: 10.1071/AH22134
De Guzman, Keshia R., Puljevic, Cheneal and Snoswell, Centaine L. (2022). Mental illnesses as a potential risk factor for non‐medical use of prescription opioids: a narrative review. Journal of Pharmacy Practice and Research, 52 (1), 19-25. doi: 10.1002/jppr.1781
De Guzman, Keshia R., Snoswell, Centaine L., Maier, Larissa J., Winstock, Adam R., Ferris, Jason A. and Puljevic, Cheneal (2022). Associations between mental illness and non-medical use of prescription opioids among a sample of people who use drugs in Australia and New Zealand. Drugs: Education, Prevention and Policy, 30 (3), 1-9. doi: 10.1080/09687637.2022.2028726
De Guzman, Keshia R., Snoswell, Centaine, Giles, Chantelle M., Smith, Anthony C. and Haydon, Helen M. (2022). General practitioner perceptions of telehealth services in Australia: a qualitative study. BJGP Open, 6 (1), 1-11. doi: 10.3399/bjgpo.2021.0182
De Guzman, Keshia R., Snoswell, Centaine L., Taylor, Monica L., Gray, Leonard C. and Caffery, Liam J. (2022). Economic evaluations of remote patient monitoring for chronic disease: a systematic review. Value in Health, 25 (6), 897-913. doi: 10.1016/j.jval.2021.12.001
De Guzman, Keshia R., Caffery, Liam J., Smith, Anthony C. and Snoswell, Centaine L. (2021). Specialist consultation activity and costs in Australia: before and after the introduction of COVID-19 telehealth funding. Journal of Telemedicine and Telecare, 27 (10), 609-614. doi: 10.1177/1357633x211042433
De Guzman, Keshia R., Snoswell, Centaine L., Caffery, Liam J. and Smith, Anthony C. (2021). Economic evaluations of videoconference and telephone consultations in primary care: a systematic review. Journal of Telemedicine and Telecare, 30 (1) 1357633X211043380, 1357633X2110433-17. doi: 10.1177/1357633x211043380
Snoswell, Centaine L., Chelberg, Georgina, De Guzman, Keshia R., Haydon, Helen H., Thomas, Emma E., Caffery, Liam J. and Smith, Anthony C. (2021). The clinical effectiveness of telehealth: A systematic review of meta-analyses from 2010 to 2019. Journal of Telemedicine and Telecare, 29 (9) 1357633X211022907, 1-16. doi: 10.1177/1357633x211022907
De Guzman, Keshia R. , Vitangcol, Kathryn Jemimah and Gupta, Deepali (2021). Quantifying pharmacist involvement in NRT prescriptions on hospital discharge. Pharmacy Growth, Research, Innovation and Training (Pharmacy GRIT), 4 (4), 309-310.
De Guzman, Keshia R., Snoswell, Centaine L., Puljevic, Cheneal and Gupta, Deepali (2020). Evaluating the utility of a Smoking Cessation Clinical Pathway tool to promote nicotine prescribing and use among inpatients of a tertiary hospital in Brisbane, Australia. Journal of Smoking Cessation, 15 (4), 214-218. doi: 10.1017/jsc.2020.22
Deguzman, K. R. and Ghahreman-Falconer, N. (2020). Vitamin D and the link with Parkinson’s disease: causal or correlational?. Pharmacy Growth, Research, Innovation and Training (Pharmacy GRIT), 3 (4), 291-292.
De Guzman, Keshia Rachel, Snoswell, Centaine L, Taylor, Monica L., Senanayake, Buddhika, Haydon, Helen Moyra, Batch, Jennifer, Smith, Anthony and Caffery, Liam J. (2020). A systematic review of paediatric telediabetes service models. Diabetes Technology & Therapeutics, 22 (8) dia.2019.0489, 623-638. doi: 10.1089/dia.2019.0489
Conference Papers
Neil, Laura, Snoswell, Centaine, De Guzman, Keshia, Isaacs, Tara, Taylor, Monica, Mendis, Roshni and Ryan, Marissa (2024). Models of care for adult outpatient synchronous telepharmacy services: a systematic review. Successes and Failures in Telehealth Conference, Brisbane, QLD Australia, 13-15 November 2024.
Isaacs, Tara, De Guzman, Keshia R. and Snoswell, Centaine L. (2024). How pharmacists are using pre-recorded video-based patient education materials to assist patient counselling: a systematic review. Princess Alexandra Hosptal (PAH) Symposium 2024, Brisbane, QLD Australia, August 2024.
De Guzman, Keshia R., Smith, Anthony C. and Snoswell, Centaine L. (2023). A survey and discrete choice experiment for general practitioner preferences of telehealth consultations in Australia. 23rd Conference on Successes and Failures in Telehealth (SFT-23), Adelaide, SA Australia, 27-29 November 2023.
Puljević, Cheneal, Vitangcol, Kathryn, De Guzman, Keshia, Gupta, Deepali and Snoswell, Centaine (2023). Assessing the effects of an inpatient brief intervention tool for smoking cessation. 2023 Australasian Professional Society on Alcohol and other Drugs (APSAD) Concerence, Adelaide, SA Australia, 12-15 November 2023.
De Guzman, Keshia, Gavanescu, Danielle, Smith, Anthony and Snoswell, Centaine (2023). A systematic review of economic evaluations of telepharmacy services in non-cancer settings. Medicines Management 2023, the 47th SHPA National Conference, Cairns, QLD Australia, 2-4 November 2023.
Puljevic, Cheneal, Vitangcol, Kathryn, De Guzman, Keshia and Snoswell, Centaine (2023). Assessing the effects of an inpatient brief intervention tool for smoking cessation. APSAD 2023 Conference, Adelaide, SA, Australia, 12–15 November 2023. Chichester, West Sussex, United Kingdom: Wiley-Blackwell.
De Guzman, K.R., Snoswell, C.L., Wallace, K.A. and Smith, A.C. (2022). Impact of COVID-19 telehealth funding on general practitioner consultation costs in Australia. Australian Health Economics Society (AHES-22), Brisbane, QLD Australia, 20-21 September 2022.
Paradissis, Chariclia, De Guzman, Keshia R., Barras, Michael, La Caze, Adam, Winckel, Karl, Taufatofua, Natasha and Falconer, Nazanin (2022). A qualitative study of the experiences of a pharmacy team working collaboratively in a COVID-19 vaccination service. 61st PAH Health Symposium, Brisbane, QLD Australia, 23-26 August 2022.
Kelly, Jaimon, Law, Lynette, De Guzman, Keshia, Hickman, Ingrid, Mayr, Hannah, Campbell, Katrina, Snoswell, Centaine and Erku, Daniel (2022). Are telehealth-delivered nutrition care interventions cost-effective for managing chronic diseases? A systematic review of all payer perspectives. NUTRITION 2022 LIVE ONLINE, Online, June 2022. New York, NY United States: Oxford University Press. doi: 10.1093/cdn/nzac065.026
De Guzman, K. R., Snoswell, C. L., Caffery, L. J., Wallace, K. A. and Smith, A. C. (2022). Evaluation of changing costs of general practitioner services in Australia resulting from COVID-19 Medicare policy changes. Successes and Failures in Telehealth conference 2022 (SFT-2022), Brisbane, QLD, Australia, 9-11 November 2022.
De Guzman, K. R., Snoswell, C. L. and Smith, A. C. (2022). A time-series analysis to examine changes in general practitioner consultation activity resulting from Medicare policy changes . Successes and Failures in Telehealth conference 2022 (SFT-2022), Brisbane, QLD,Australia, 9-11 November 2022.
Gallegos-Rejas, V., De Guzman, K.R., Kelly, J., Smith, A.C. and Thomas, E.E. (2022). Telehealth interventions towards equitable access: a systematic review of international studies. Successes and Failures in Telehealth Conference 2022 (SFT-2022), Brisbane, QLD, Australia, 9-11 November 2022.
De Guzman, K., Snoswell, C.L., Taylor, M.L., Gray, L.C. and Caffery, L.J. (2022). Cost-effectiveness of remote patient monitoring for chronic disease management. 12th Health Services Research (HSR-22) Conference, Sydney, NSW Australia, 29 November - 2 December 2022 .
De Guzman, Keshia R., Snoswell, Centaine L., Giles, Chantelle M., Smith, Anthony C. and Haydon, Helen M. (2021). A qualitative study on general practitioner perceptions of telehealth services in Australia. Faculty of Medicine Higher Degree Research Symposium, Brisbane, Australia, 1-2 December 2021. The University of Queensland.
De Guzman, Keshia R., Caffery, Liam J., Smith, Anthony C. and Snoswell, Centaine L. (2021). Telehealth activity and costs for specialist consultations in Australia as a result of the Coronavirus pandemic . Successes and Failures in Telehealth conference 2021 (SFT-2021), Online, 3-5 November 2021.
Vitangcol, Kathryn J., Caffery, Liam J., De Guzman, Keshia R. and Snoswell, Centaine L. (2021). The effect of financial incentives on telehealth service uptake in Australia. Successes and Failures in Telehealth conference 2021 (SFT-2021), Online, 3-5 November 2021.
De Guzman, Keshia R., Snoswell, Centaine L., Caffery, Liam J. and Smith, Anthony C. (2021). A systematic review of the cost-effectiveness of telehealth in primary care. iHEA (International Health Economics Association) Congress 2021, Online, 12-15 July 2021.
De Guzman, K., Snoswell, C., Caffery, L. J. and Smith, A. C. (2021). PNS81 Is telehealth in primary care cost-effective? A systematic review. ISPOR 2021 - HEOR: Evolving for Tomorrow's Challenges, Virtual, 17-20 May 2021. New York, NY United States: Elsevier. doi: 10.1016/j.jval.2021.04.935
De Guzman, Keshia R., Snoswell, Centaine L., Caffery, Liam J. and Smith, Anthony C. (2021). Is telehealth in primary care cost-effective? A systematic review. ISPOR (International Society for Pharmacoeconomics and Outcomes Research) 2021, Online, 17-20 May 2021.
De Guzman, Keshia and Snoswell, Centaine L. (2019). Pharmacists and pharmacy technicians' accuracy checking proficiency: results of a meta-analysis. The Society of Hospital Pharmacists of Australia (SHPA) Qld Branch: 2019 Pharmacy Research Symposium, Brisbane, Australia, 26 October 2019.
Smith, Anthony C., De Guzman, Keshia, Snoswell, Centaine L. and Caffery, Liam J. (2019). 15 years of telepaediatrics: data discoveries and service successes. 11th Health Services and Policy Research Conference, arranged by the Health Services Research Association of Australia and New Zealand (HSRAANZ), Auckland, New Zealand, 4-6 December 2019.
Thesis
De Guzman, Keshia (2023). Evaluation of the economic factors and clinician drivers impacting telehealth uptake and sustainability in Australian general practice settings. PhD Thesis, Centre for Health Services Research, The University of Queensland. doi: 10.14264/ee8ee45
Newspaper Article
Research Report
Puljević, Cheneal, Snoswell, Aaron, De Guzman, Keshia and Ferris, Jason (2020). Rapid review of smoking cessation preferences among people who identify as Aboriginal and Torres Strait Islander, LGBTIQ, or experience mental illness. Brisbane, QLD, Australia: The University of Queensland.