John Yfantopoulos

ORCID: 0000-0003-0424-6887
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About
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Research Areas
  • Health Systems, Economic Evaluations, Quality of Life
  • Global Health Care Issues
  • Pharmaceutical Economics and Policy
  • Healthcare Policy and Management
  • Health disparities and outcomes
  • Employment and Welfare Studies
  • Healthcare Systems and Reforms
  • Efficiency Analysis Using DEA
  • Dental Health and Care Utilization
  • Diabetes Treatment and Management
  • Diabetes Management and Research
  • Medication Adherence and Compliance
  • Economic and Financial Impacts of Cancer
  • Pharmaceutical Practices and Patient Outcomes
  • Psoriasis: Treatment and Pathogenesis
  • Blood Pressure and Hypertension Studies
  • Dental Research and COVID-19
  • Chronic Disease Management Strategies
  • Oral microbiology and periodontitis research
  • Innovation Policy and R&D
  • COVID-19 and healthcare impacts
  • COVID-19 and Mental Health
  • Healthcare cost, quality, practices
  • Bipolar Disorder and Treatment
  • Global Public Health Policies and Epidemiology

National and Kapodistrian University of Athens
2016-2025

Athens University of Economics and Business
2011-2023

Laiko General Hospital of Athens
2022

Hellenic Air Force
2022

University of York
1980-2015

German Institute for Economic Research
2015

University of Peloponnese
2014

National School of Public Health
2014

Hellenic Open University
2008-2012

National Centre for Social research
1991-2010

Introduction: There are growing concerns among European health authorities regarding increasing prices for new cancer medicines, not necessarily linked to gain and the implications sustainability of their healthcare systems.Areas covered: Narrative discussion principally payers advisers potential approaches pricing medicines.Expert opinion: A number discussed including minimum effectiveness levels managed entry agreements, multicriteria decision analyses (MCDAs), differential/tiered pricing,...

10.1080/14737167.2021.1884546 article EN cc-by-nc-nd Expert Review of Pharmacoeconomics & Outcomes Research 2021-02-05

Our study aimed to (1) assess health-related quality of life (HRQoL) and mental well-being healthy diseased persons in the general population during early stage COVID-19 pandemic (2) examine relationship between HRQoL individual characteristics government response against COVID-19, as measured by stringency index.A web-based survey was administered a cohort from eight countries: Greece, Italy, Netherlands, Russia, South Africa, Sweden, United Kingdom (UK) States America (US) April 22 May 5...

10.1016/j.ssmph.2021.100913 article EN cc-by SSM - Population Health 2021-09-01

Introduction: There are appreciable concerns among European health authorities with growing expenditure on cancer medicines and issues of sustainability.The enhanced use low cost generics could help.Aims: Consequently, there is a need to comprehensively document current future arrangements regarding the pricing generic across Europe, whether these indication specific, as well how this translates into actual prices provide direction.Methodology: Mixed method approach qualitative research...

10.5639/gabij.2019.0802.007 article EN Generics and Biosimilars Initiative Journal 2019-06-15

Abstract Objectives To investigate medication non-adherence and its determinants in diabetes, hypertension, hyperlipidemia. Methods In a multicenter, cross-sectional, non-interventional study, 518 diabetic, 721 hypertensive, 463 hyperlipidemic patients were recruited, using consecutive sampling, Greece during the COVID-19 pandemic. Medication adherence was measured with Adherence to Refills Medications Scale (ARMS). Multiple linear regressions robust standard errors investigated predictors...

10.1007/s42000-025-00631-9 article EN cc-by HORMONES 2025-02-20

We investigate the sustainability of asymmetric public social spending (PSS)–financialization relationship in Eurozone over period 1995q1–2023q4. follow theoretical endogenous nexus PSS with financial fragility hypothesis (FFH) and finance-led growth regime; nonlinear autoregressive distributed lag (NARDL) model cointegration are applied for this purpose. The analysis suggests following: (1) selected determinants three stages FFH affect dependent asymmetrically long run (as well as short...

10.3390/su17073047 article EN Sustainability 2025-03-29

To test the validity of short form Oral Health Impact Profile (OHIP-14) for use among adults in Greece.The original English version OHIP-14 was translated using forward-backward technique, pilot-tested, and then applied to 211 aged 35 years above. The questionnaire filled out during face-to-face interviews conducted by one dentist, while individuals were asked undergo a clinical examination. internal consistency evaluated Cronbach's alpha (α) coefficient inter-item item-total correlations....

10.1186/1477-7525-10-7 article EN cc-by Health and Quality of Life Outcomes 2012-01-14

This study is an initial effort to examine the dynamics of efficiency and productivity in Greek public hospitals during first phase crisis 2009–2012. Data were collected by Ministry Health after several quality controls ensuring comparability validity hospital inputs outputs. Productivity estimated using Malmquist Indicator, decomposing values into technological change. Hospital growth are calculated bootstrapping non-parametric analysis. The advantage this method estimation through...

10.1186/s12962-017-0068-5 article EN cc-by Cost Effectiveness and Resource Allocation 2017-04-26

Introduction: In January 2018 the European Commission published a Proposal for Regulation on Health Technology Assessment (HTA): 'Proposal health technology assessment and amending Directive 2011/24/EU'. A number of stakeholders, including some Member States, welcomed this initiative as it was considered to improve collaboration, reduce duplication efficiency. There were however concerns its legal basis, establishment single managing authority, preservation national jurisdiction over HTA...

10.1080/14737167.2019.1575730 article EN Expert Review of Pharmacoeconomics & Outcomes Research 2019-01-30

This study aimed to investigate socioeconomic and health-related determinants recent life events their relation changes in quality of (HRQoL) mental well-being during the first year COVID-19 pandemic. A web-based survey was administered repeatedly participants from Greece, Italy, Netherlands, United Kingdom, States. Primary outcome measures were HRQoL (measured by EQ-5D-5L) WHO-5). Linear regression analyses performed estimate impact on well-being. In total, 6765 respondents completed...

10.3390/jcm11216467 article EN Journal of Clinical Medicine 2022-10-31

Summary In the WHO – EURO region, around 28 million people are currently living with chronic viral hepatitis, and 120 000 die every year because of it. Lack awareness understanding combined social stigma discrimination exacerbate barriers related to access prevention, diagnosis treatment services for those most in need. addition, persisting economic crisis has impacted on public health spending, thus posing challenges sustainable investment promotion, primary secondary hepatitis across...

10.1111/jvh.12493 article EN Journal of Viral Hepatitis 2016-01-26

10.1016/j.vhri.2018.06.006 article EN publisher-specific-oa Value in Health Regional Issues 2018-09-01

The health, social and economic impact of chronic diseases is well documented in Europe. However, threaten relatively more the 'memorandum peripheral' Eurozone countries (i.e., Greece, Spain, Portugal Ireland), which were under heavy recession after crisis 2009. Especially where was most severe across Europe, austerity measures affected mainly people with diseases. As a result, urgency to tackle threat Greece by promoting public health providing effective care while flattening rising...

10.5334/ijic.2228 article EN cc-by International Journal of Integrated Care 2015-10-22

10.1007/s10198-007-0061-6 article EN The European Journal of Health Economics 2007-07-10

Purpose . The aim of the present study was to investigate impact oral health status on quality life adults in different regions Greece, using Oral Health Impact Profile-short form (OHIP-14). Methods A random sample consisting a total 504 Greek between ages 35–44 years (mean 39.1 ± 3.5) selected from urban and rural areas, face-to-face interviews were conducted validated language OHIP-14. Associations OHIP-14 score its 7 sub-scales along with self-perceived evaluated Spearman's correlations....

10.1155/2011/360292 article EN cc-by International Journal of Dentistry 2011-01-01

Complications contribute largely to the economic gravity of diabetes mellitus (DM). How they arise and are treated differs substantially between countries. This paper assesses total annual, direct, indirect cost severe hypoglycemia events (SHEs) in nine European countries: Bulgaria, Croatia, Czech Republic, Greece, Hungary, Macedonia/the former Yugoslav Republic Macedonia (MK), Poland, Slovenia, Spain.Data was collected on epidemiology, treatment structure, SHE-driven resource consumption,...

10.1080/13696998.2016.1188823 article EN Journal of Medical Economics 2016-05-10

The aim of this study was twofold: (i) to assess the health gap among young socio-economic groups generated by economic crisis in Greece and (ii) investigate HRQoL (Health Related Quality Life) inequalities using Theil index.The EQ-5D-5L instrument administered a sample 4,177 individuals Greece, mean age 22.3 (±SD 4.8) 53.8% males, 46.2% females. Greek version used web-based questionnaire collect data. Subjects were asked their subjective status during 2016 instrument, recall before 2009....

10.3389/fpubh.2023.1138982 article EN cc-by Frontiers in Public Health 2023-06-05
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