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Our latest research, all in one place. Browse our collection of journal articles, reports and conference proceedings to see how we’re contributing to HEOR research. Remember to: 

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Peer-reviewed publication

The Impact of Surgical Site Infection on Hospitalisation, Treatment Costs, and Health-Related Quality of Life After Vascular Surgery

YHEC authors: Joe Moss, Erin Barker, Stuart Mealing
Publication date: December 2020
Journal: International Wound Journal

Abstract

Surgical site infections (SSI) substantially increase costs for healthcare providers because of additional treatments and extended patient recovery. The objective of this study was to assess the cost and health-related quality of life impact of SSI, from the perspective of a large teaching hospital in England. Data were available for 144 participants undergoing clean or clean-contaminated vascular surgery. SSI development, length of hospital stay, readmission, and antibiotic use were recorded over a 30-day period. Patient-reported EQ-5D scores were obtained at baseline, day 7 and day 30. Linear regressions were used to control for confounding variables. A mean SSI-associated length of stay of 9.72 days resulted in an additional cost of £3776 per patient (including a mean antibiotic cost of £532). Adjusting for age, smoking status, and procedure type, SSI was associated with a 92% increase in length of stay (P < 0.001). The adjusted episode cost was £3040. SSI reduced patient utility between baseline and day 30 by 0.156 (P = 0.236). Readmission rates were higher with SSI (P = 0.017), and the rate to return to work within 90 days was lower. Therefore, strategies to reduce the risk of surgical site infection for high-risk vascular patients should be investigated.

Peer-reviewed publication

Retrospective Coding of Health Care Professional Cancer Screening Behaviours and of Real-World Interventions Designed to Support them: Identifying Recommendations to Optimize Intervention Design

YHEC authors: Alice Sanderson, Mick Arber, Hannah Wood
Publication date: November 2020
Journal: British Journal of Health Psychology

Abstract

OBJECTIVES: Screening can detect cancer earlier. Uptake of breast, cervical, and bowel cancer screening in England is below 75%. This study identifies the barriers and facilitators underpinning HCP screening behaviours which can support screening uptake, and reviews the design of real-world interventions targeting these, assessing for congruence between the two. The aim was to provide recommendations to improve the design of interventions.

DESIGN AND METHODS: Barriers/facilitators were identified by a literature review and qualitatively coded using the theoretical domains framework (TDF). Interventions were identified by stakeholders and coded using the behaviour change wheel and the taxonomy of behaviour change techniques. Congruence was assessed through comparing the intervention designs with behavioural science experts' recommendations which link the TDF domains to intervention design. Recommendations targeted missed opportunities.

RESULTS: Barriers/facilitators were extracted from 60 papers and most frequently coded to the TDF domains: environmental context and resources, knowledge and beliefs about consequences. Thirty-one interventions were identified, most frequently education, training or enablement functions, delivered via communication/marketing or service provision, and using BCTs designed to shape knowledge or highlight the consequences of or antecedents to screening. Intervention design was largely congruent with recommendations. However, there was less use of persuasion and modelling intervention functions and a reliance on BCTs such as providing instruction when other BCTs could be considered.

CONCLUSIONS: Recommendations include to consider a broader range of intervention functions and BCTs, particularly for training interventions which should make use of recommended BCTs such as 'graded tasks'.

Peer-reviewed publication

Safety of Tapentadol Compared with Other Opioids in Chronic Pain Treatment: Network Meta-Analysis of Randomized Controlled and Withdrawal Trials

YHEC authors: Rachael McCool, Mary Edwards
Publication date: November 2020
Journal: Current Medical Research and Opinion

Abstract

OBJECTIVE: To assess the relative safety of oral tapentadol PR and other opioid analgesics for moderate or severe chronic pain in adults, we conducted a systematic review and network meta-analysis (NMA).

METHODS: A systematic review was conducted to identify randomized controlled trials (RCTs) and randomized withdrawal trials of tapentadol with other WHO stage II and III opioid analgesics in patients with moderate or severe chronic pain. Searches were conducted in MEDLINE, EMBASE, PubMed, Cochrane databases and trial registries. Feasibility assessment evaluated the trials' suitability for NMA. Outcomes assessed were overall AEs, overall serious adverse events, constipation, nausea, dizziness, somnolence, headache, and discontinuation due to AEs. Randomized withdrawal trials were analyzed separately to other RCTs.

RESULTS: Searches conducted in April 2019 identified 16,604 records. Following screening and feasibility assessment, 29 RCTs and 19 randomized withdrawal trials were identified and included in the NMA. Consistent with existing research, evidence from RCTs suggested that tapentadol is associated with relatively lower odds of adverse events occurring than most active comparators. The withdrawal trial data were less clear, with higher uncertainty around the results, and results that appear to contradict the RCT evidence. There are a number of trial design factors that may be affecting these results.

CONCLUSIONS: RCT evidence suggests that tapentadol can be a useful treatment option for patients suffering from chronic pain and in need of an opioid analgesic. Opioids should be prescribed by a qualified physician only after other analgesics have been considered, taking side effects and misuse risk into account.

Peer-reviewed publication

Systematic Review of the Impact of Appropriate Versus Inappropriate Initial Antibiotic Therapy on Outcomes of Patients with Severe Bacterial Infections

YHEC authors: Rachael McCool, Jacoby Patterson
Publication date: November 2020
Journal: International Journal of Antimicrobial Agents

Abstract

We investigated the impact of appropriate versus inappropriate initial antimicrobial therapy on the clinical outcomes of patients with severe bacterial infections as part of a systematic review and meta-analyses assessing the impact of delay in appropriate antimicrobial therapy. Literature searches of MEDLINE and Embase, conducted on 24 July 2018, identified studies published after 2007 reporting the impact of delay in appropriate antibiotic therapy for hospitalised adult patients with bacterial infections. Results were statistically pooled for outcomes including mortality, hospital length of stay (LOS) and treatment failure. Subgroup analyses were explored by site of infection where data permitted. Inclusion criteria were met by 145 studies, of which 114 reported data on the impact of appropriate versus inappropriate initial therapy. In the pooled analysis, rates of mortality were significantly in favour of appropriate therapy [odds ratio (OR) = 0.44, 95% CI 0.38-0.50]. Across eight studies, LOS was shorter with appropriate therapy compared with inappropriate therapy [mean difference (MD) -2.54 days (95% CI -5.30 to 0.23)], but not significantly so. The incidence of treatment failure was significantly lower in patients who received appropriate therapy compared with patients who received inappropriate therapy (six studies: OR = 0.33, 95% CI 0.16-0.66) as was mean hospital costs (four studies: MD -7.38 thousand US$ or Euros, 95% CI -14.14 to -0.62). Initiation of appropriate versus inappropriate antibiotics can reduce mortality, reduce treatment failure and decrease LOS, highlighting the importance of broad-spectrum empirical therapy and rapid diagnostics for early identification of the causative pathogen. [Study registration: PROSPERO: CRD42018104669]

Peer-reviewed publication

An Algorithm Provided as Initial Guidance for Reporting Registry Records and Published Protocols in Systematic Reviews

YHEC authors: Julie Bidonde
Publication date: October 2020
Journal: Journal of Clinical Epidemiology

Abstract

OBJECTIVE: We aim to synthesize the available guidance with existing practices by Cochrane reviewers to generate an algorithm as a starting point in assisting reviewers reporting of registry records and published protocols (TRRs/PPs) use in systematic reviews of interventions.

STUDY DESIGN: We used existing guidance from major review bodies, assessed the current reporting of TRRs/PPs use in a sample of Cochrane reviews, and engaged in critical analysis. Independent reviewers identified and extracted textual excerpts reporting the use of trial registry records and published protocols and codes following a systematic review framework. Based on these elements, and our initial research, we created an algorithm/graphical aid to visualize initial direction.

RESULTS: We included 166 Cochrane systematic reviews published between August 2015 and 2016 from 48 review groups. Review authors' terminology (e.g., ongoing, terminated) varied between and within reviews. Reporting practices were diverse and inconsistent.

CONCLUSIONS: This is a timely investigation in an era where evidence synthesis informs health and health care decisions. Our proposed algorithm provides initial direction to systematize the reporting of TRR/PP use. We hope that the algorithm generates further discussion to enhance the transparency of TRR/PP reporting and methodological research into the complexities of using protocols in systematic reviews of interventions.

Peer-reviewed publication

Which are the Most Sensitive Search Filters to Identify Randomized Controlled Trials in MEDLINE?

YHEC authors: Julie Glanville
Publication date: October 2020
Journal: Journal of the Medical Library Association

Abstract

OBJECTIVE: The Cochrane Handbook of Systematic Reviews contains search filters to find randomized controlled trials (RCTs) in Ovid MEDLINE: one maximizing sensitivity and another balancing sensitivity and precision. These filters were originally published in 1994 and were adapted and updated in 2008. To determine the performance of these filters, the authors tested them and thirty-six other MEDLINE filters against a large new gold standard set of relevant records.

METHODS: We identified a gold standard set of RCT reports published in 2016 from the Cochrane CENTRAL database of controlled clinical trials. We retrieved the records in Ovid MEDLINE and combined these with each RCT filter. We calculated their sensitivity, relative precision, and f-scores.

RESULTS: The gold standard comprised 27,617 records. MEDLINE searches were run on July 16, 2019. The most sensitive RCT filter was Duggan et al. (sensitivity=0.99). The Cochrane sensitivity-maximizing RCT filter had a sensitivity of 0.96 but was more precise than Duggan et al. (0.14 compared to 0.04 for Duggan). The most precise RCT filters had 0.97 relative precision and 0.83 sensitivity.

CONCLUSIONS: The Cochrane Ovid MEDLINE sensitivity-maximizing RCT filter can continue to be used by Cochrane reviewers and to populate CENTRAL, as it has very high sensitivity and a slightly better precision relative to more sensitive filters. The results of this study, which used a very large gold standard to compare the performance of all known RCT filters, allows searchers to make better informed decisions about which filters to use for their work.

Peer-reviewed publication

Death and Dying in Prehospital Care: What are the Experiences and Issues for Prehospital Practitioners, Families and Bystanders? A Scoping Review

YHEC authors: Mick Arber
Publication date: September 2020
Journal: BMJ Open

Abstract

OBJECTIVE: To identify the factors that shape and characterise experiences of prehospital practitioners (PHPs), families and bystanders in the context of death and dying outside of the hospital environment where PHPs respond.

DESIGN: A scoping review using Arksey and O'Malley's five-stage framework. Papers were analysed using thematic analysis.

DATA SOURCES: MEDLINE; Embase; CINAHL; Scopus; Social Sciences Citation Index (Web of Science), ProQuest Dissertations & Theses A&I (Proquest), Health Technology Assessment database; PsycINFO; Grey Literature Report and PapersFirst were searched from January 2000 to May 2019.

ELIGIBILITY CRITERIA FOR SELECTING STUDIES: Qualitative and mixed methods studies reporting the experiences of PHPs, families and bystanders of death and dying in prehospital settings as a result of natural causes, trauma, suicide and homicide, >18 years of age, in Europe, USA, Canada, Australia and New Zealand.

RESULTS: Searches identified 15 352 papers of which 51 met the inclusion criteria. The review found substantial evidence of PHP experiences, except call handlers, and papers reporting family and bystander experiences were limited. PHP work was varied and complex, while confident in clinical work, they felt less equipped to deal with the emotion work, especially with an increasing role in palliative and end-of-life care. Families and bystanders reported generally positive experiences but their support needs were rarely explored.

CONCLUSIONS: To the best of our knowledge this is the first review that explores the experiences of PHPs, families and bystanders. An important outcome is identifying current gaps in knowledge where further empirical research is needed. The paucity of evidence suggested by this review on call handlers, families and bystanders presents opportunities to investigate their experiences in greater depth. Further research to address the current knowledge gaps will be important to inform future policy and practice.

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