Apostolos Tsiachristas

ORCID: 0000-0002-4662-8915
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Research Areas
  • Health Systems, Economic Evaluations, Quality of Life
  • Chronic Disease Management Strategies
  • Primary Care and Health Outcomes
  • Healthcare Policy and Management
  • Chronic Obstructive Pulmonary Disease (COPD) Research
  • Interprofessional Education and Collaboration
  • Suicide and Self-Harm Studies
  • Economic and Financial Impacts of Cancer
  • Pharmaceutical Economics and Policy
  • Nursing Diagnosis and Documentation
  • Geriatric Care and Nursing Homes
  • Diabetes Management and Education
  • Global Health Care Issues
  • Frailty in Older Adults
  • Cardiac Imaging and Diagnostics
  • Adolescent and Pediatric Healthcare
  • Health Policy Implementation Science
  • Economic and Environmental Valuation
  • Clinical practice guidelines implementation
  • Mental Health Treatment and Access
  • Delphi Technique in Research
  • Schizophrenia research and treatment
  • Healthcare cost, quality, practices
  • Ultrasound in Clinical Applications
  • Posttraumatic Stress Disorder Research

University of Oxford
2016-2025

NHS England
2024

University of Nottingham
2024

Nuffield Health
2018-2024

Institute of Mental Health
2024

Pennine Care NHS Foundation Trust
2024

National Institute for Health Research
2022-2023

Inter-American Development Bank
2023

Erasmus University Rotterdam
2013-2022

Syreon Research Institute (Hungary)
2022

The rise of multi-morbidity constitutes a serious challenge in health and social care organisation that requires shift from disease- towards person-centred integrated care. aim the current study was to develop conceptual framework can aid development, implementation, description, evaluation programmes for multi-morbidity.A scoping review expert discussions were used identify structure concepts multi-morbidity. A search scientific grey literature conducted.meetings organised within SELFIE...

10.1016/j.healthpol.2017.06.002 article EN cc-by-nc-nd Health Policy 2017-06-21

<b>Objective</b> To investigate the long term effectiveness of integrated disease management delivered in primary care on quality life patients with chronic obstructive pulmonary (COPD) compared usual care. <b>Design</b> 24 month, multicentre, pragmatic cluster randomised controlled trial <b>Setting</b> 40 general practices western part Netherlands <b>Participants</b> Patients COPD according to GOLD (Global Initiative for COPD) criteria. Exclusion criteria were terminal illness, cognitive...

10.1136/bmj.g5392 article EN cc-by-nc BMJ 2014-09-10

Self-harm is an extremely common reason for hospital presentation. However, few estimates have been made of the costs assessing and treating self-harm. Such information essential planning services to help strengthen case investment in actions reduce frequency effects In this study, we aimed calculate medical care associated with a self-harm episode psychosocial assessment, together identification key drivers these costs.In retrospective analysis, estimated resource use all presentations John...

10.1016/s2215-0366(17)30367-x article EN cc-by The Lancet Psychiatry 2017-09-08

Many patients are currently unable to access psychological treatments for post-traumatic stress disorder (PTSD), and it is unclear which types of therapist-assisted internet-based work best. We aimed investigate whether a novel internet-delivered cognitive therapy PTSD (iCT-PTSD), implements all procedures first-line, trauma-focused intervention recommended by the UK National Institute Health Care Excellence (NICE) PTSD, superior management (iStress-PTSD), comprehensive behavioural treatment...

10.1016/s2215-0366(23)00181-5 article EN cc-by The Lancet Psychiatry 2023-07-19

The personalised oncology paradigm remains challenging to deliver despite technological advances in genomics-based identification of actionable variants combined with the increasing focus drug development on these specific targets. To ensure we continue build concerted momentum improve outcomes across all cancer types, financial, and operational barriers need be addressed. For example, complete integration certification 'molecular tumour board' into 'standard care' ensures a unified clinical...

10.1017/pcm.2024.1 article EN cc-by-nc-nd Cambridge Prisms Precision Medicine 2024-01-01

BackgroundCalls for increased funding mental health services require many lines of evidence in support, including estimates economic impact. One understudied source cost is violence perpetrated by individuals with severe illness. Estimating this impact can inform budget planning across several government sectors and emphasise the importance prevention. Therefore, we aimed to provide a comprehensive estimate costs people illness.MethodsFor retrospective analysis, used prevalence-based...

10.1016/s2468-2667(19)30245-2 article EN cc-by The Lancet Public Health 2020-02-01

hospital level healthcare in the home guided by comprehensive geriatric assessment (CGA) might provide a less costly alternative to hospitalisation for older people.to determine cost-effectiveness of CGA admission avoidance at (HAH) compared with admission.a study alongside randomised trial an HAH setting, hospital.older people considered nine locations across UK were using 2:1 randomisation schedule (N = 700), or when available 355).quality adjusted life years, resource use and costs...

10.1093/ageing/afab220 article EN cc-by-nc Age and Ageing 2021-10-19

Objectives To demonstrate the costs, outcomes and economic impact of early intervention in psychosis (EIP) services. Design Longitudinal retrospective observational study service usage outcome data from mental health acute care services for all those with a diagnosis contact over 3-year period (April 2010–March 2013). Setting Thames Valley South Midlands region England (region covered by Oxford Academic Health Science Network). Participants 3674 people psychosis, aged 16–35 years....

10.1136/bmjopen-2016-012611 article EN cc-by-nc BMJ Open 2016-10-01

Health economists are increasingly interested in integrated care order to support decision-makers find cost-effective solutions able tackle the threat that chronic diseases pose on population health and social budgets. However, economic evaluation is still its early years, facing several difficulties. The aim of this paper describe unique nature as a topic for evaluation, explore obstacles perform discuss methods techniques can be used address them, set basis develop research agenda...

10.5334/ijic.2472 article EN cc-by International Journal of Integrated Care 2016-10-19

The aim of this study was to estimate incidence self-harm presentations hospitals and their associated hospital costs across England.We used individual patient data from the Multicentre Study Self-harm in England all emergency departments five general Oxford, Manchester Derby 2013. We also obtained cost for each presentation Oxford Derby, as well population geographical estimates Office National Statistics. First, we estimated rate by age gender multiplied with respective populations number...

10.1017/s2045796020000189 article EN cc-by-nc-nd Epidemiology and Psychiatric Sciences 2020-01-01

Objective: To evaluate the effectiveness and cost-effectiveness of a community pharmacist-led intervention in asthma COPD patients Design: A parallel, two-arm, randomized controlled trial Setting: 100 pharmacies Sicily, Italy. Participants: In total, 836 adult with or who take prescription medications to manage their chronic respiratory conditions were assessed for eligibility, recruited, randomized. Participants recruited by pharmacist, primary care physician, specialist physician allocated...

10.1101/2025.03.12.25323845 preprint EN cc-by-nc-nd medRxiv (Cold Spring Harbor Laboratory) 2025-03-13

In the Netherlands extent to which chronically ill patients receive care congruent with Chronic Care Model is unknown. The main objectives of this study were (1) validate Assessment Illness (ACIC) in various Disease Management Programmes (DMPs) and (2) shorten 34-item ACIC while maintaining adequate validity, reliability, sensitivity change. Dutch version was tested 22 DMPs 218 professionals. We instrument by means structural equation modelling, examined its reliability After eliminating 13...

10.1186/1477-7525-9-49 article EN cc-by Health and Quality of Life Outcomes 2011-01-01
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