Advanced practice in radiotherapy across Europe: stakeholders' perceptions of implementation and evolution

INTRODUCTION

Adapting radiotherapy services with workforce innovation using skills-mix or task-shifting optimises resources, supporting current and future demands. Advanced practitioners (APs) work at a different level of practice (beyond initial registration) across four pillars: clinical practice, leadership and management, education, and research. There is limited cross-country research on the advanced therapeutic radiographers/radiation therapists (TR/RTTs), particularly in Europe. This study aimed to investigate European radiotherapy stakeholders' perceptions regarding current and future advanced practice (AP).

METHODS

From June to September 2022, one-to-one online semi-structured interviews were conducted in English, and audio and video were recorded. Full verbatim audio files were independently transcribed and checked by interviewer and interviewees. Braun and Clarke's seven steps guided the thematic analysis (using NVivo).

RESULTS

Thirty-three interviewees working or studying in 16 European countries represented practitioners (n=14), managers (n=6), educators (n=4), professional bodies (n=4), students (n=3), and regulators (n=2). Four overarching themes emerged: "AP drivers and outcomes", "AP challenges vs enablers", "Current vs future AP", "Becoming and being advanced practitioner". Participants identified research as the neglected AP pillar due to a lack of protected time, limited staff skills, no research culture, no funding, workload, and clinical priorities. Interviewees highlighted the importance of consistency in job titles, harmonisation of education models and curricula, definition of AP requirements, and support for all AP pillars through job plans and workforce planning.

CONCLUSION

Neither the profession nor education of TR/RTTs are harmonised across Europe, which is highly reflected in advanced-level practice. Advanced TR/RTTs should work across all pillars, including research, and these should be embedded in master's programmes, including leadership.

IMPLICATIONS FOR PRACTICE

This study highlights a policy gap in the education and practice of APs in radiotherapy.

Therapeutic radiographer prescribing practices in the United Kingdom: Questionnaire survey

INTRODUCTION

Non-medical professionals in the United Kingdom (UK) have been granted prescribing rights to improve patient care quality and cost-effectiveness. There is limited evidence on how therapeutic radiographer prescribers have impacted medicine management or patient services.

METHODS

An online survey was conducted amongst non-medical prescribing therapeutic radiographers in the UK between 2019 and 2022. The study teams initially analysed the individual data sets, subsequently combined, and secondary analysis was performed to provide a UK perspective, to understand the services provided and identify areas for improvement. Data was analysed using descriptive statistics from Microsoft Excel® and SPSS®.

RESULTS

74 non-medical prescribing therapeutic radiographers who were predominantly over 40 years old and in full-time work participated. The main job categories were consultant radiographers (n = 23, 31.1%) and advanced practice practitioners (n = 18, 24.3%). Many use their prescribing qualifications (87.5%, n = 62), issuing a mean of 15 independent and seven items by supplementary and prescribing per week. Most received assessment and diagnostic skills training before prescribing courses (91.6%, n = 67). Respondents prescribed from a median of six areas, with the highest being in GI (82%), skin (68%), infections (58%), urinary tract disorders (55%) and ear, nose, and oropharynx conditions (54%).

CONCLUSION

This study presents the first report on therapeutic radiographers prescribing in the UK, offering insights into current practices and highlighting the success of non-medical prescribing. Therapeutic radiographers' roles continue to expand into advanced practice and medicine-prescribing responsibilities, contributing to holistic and patient-centred care.

IMPLICATIONS FOR PRACTICE

The results are relevant for nations grappling with oncology workforce shortages and contemplating similar roles for therapeutic radiographers. The study can be a valuable resource for policymakers and healthcare organisations worldwide.

Evaluation of the quality and impact of online learning through the SAFE EUROPE webinars

INTRODUCTION

The SAFE EUROPE project, a European-funded project, addressed educational gaps of Therapeutic Radiographers/Radiation Therapists (TR/RTTs) by offering a series of free webinars. This study aimed to assess the quality of these webinars and their impact on professional practice.

METHODS

Data collection involved two methods: an automated feedback form administered after each webinar, supplemented by a survey disseminated through social media. The collected data encompassed attendance statistics, participants' professions and geographic locations, webinar quality assessment, the acquisition of new knowledge and skills, the application of this newfound knowledge in practice, and the likelihood of recommending these webinars. Descriptive statistics and thematic analysis were used to analyse the quantitative and qualitative data, respectively. Ethical approval for the study was obtained.

RESULTS

11,286 individuals from 107 countries participated in 18 webinars. Despite 72.7% being radiographers, a diverse array of professionals attended the webinars, including medical physicists, oncologists, radiologists, and academics. Remarkably, 98.7% of respondents rated the webinar quality as either good or excellent. The average rating for the likelihood of recommending these webinars to colleagues was 8.96/10. A substantial proportion of respondents expressed agreement or strong agreement that the webinars enhanced their knowledge (85%) and skills (73%). Furthermore, 79% of participants indicated that the webinars motivated them to change practice, with 65% having already implemented these changes. The insights from open-ended questions corroborated these findings.

CONCLUSION

The webinars effectively achieved the aim of the SAFE EUROPE project to enhance practice by increasing knowledge and skills. Participants overwhelmingly endorsed the quality of these webinars.

IMPLICATIONS FOR PRACTICE

Webinars represent a cost-efficient training tool that reaches a global audience and various radiography/radiotherapy professions. The development of additional webinars is strongly recommended.

First Measurement of the |t| Dependence of Incoherent J/ψ Photonuclear Production

The first measurement of the cross section for incoherent photonuclear production of J/ψ vector mesons as a function of the Mandelstam |t| variable is presented. The measurement was carried out with the ALICE detector at midrapidity, |y|<0.8, using ultraperipheral collisions of Pb nuclei at a center-of-mass energy per nucleon pair of sqrt[s_{NN}]=5.02  TeV. This rapidity interval corresponds to a Bjorken-x range (0.3-1.4)×10^{-3}. Cross sections are given in five |t| intervals in the range 0.04<|t|<1  GeV^{2} and compared to the predictions by different models. Models that ignore quantum fluctuations of the gluon density in the colliding hadron predict a |t| dependence of the cross section much steeper than in data. The inclusion of such fluctuations in the same models provides a better description of the data.

A scoping review of educational programmes on artificial intelligence (AI) available to medical imaging staff

INTRODUCTION

Medical imaging is arguably the most technologically advanced field in healthcare, encompassing a range of technologies which continually evolve as computing power and human knowledge expand. Artificial Intelligence (AI) is the next frontier which medical imaging is pioneering. The rapid development and implementation of AI has the potential to revolutionise healthcare, however, to do so, staff must be competent and confident in its application, hence AI readiness is an important precursor to AI adoption. Research to ascertain the best way to deliver this AI-enabled healthcare training is in its infancy. The aim of this scoping review is to compare existing studies which investigate and evaluate the efficacy of AI educational interventions for medical imaging staff.

METHODS

Following the creation of a search strategy and keyword searches, screening was conducted to determine study eligibility. This consisted of a title and abstract scan, then subsequently a full-text review. Articles were included if they were empirical studies wherein an educational intervention on AI for medical imaging staff was created, delivered, and evaluated.

RESULTS

Of the initial 1309 records returned, n = 5 (∼0.4 %) of studies met the eligibility criteria of the review. The curricula and delivery in each of the five studies shared similar aims and a 'flipped classroom' delivery was the most utilised method. However, the depth of content covered in the curricula of each varied and measured outcomes differed greatly.

CONCLUSION

The findings of this review will provide insights into the evaluation of existing AI educational interventions, which will be valuable when planning AI education for healthcare staff.

IMPLICATIONS FOR PRACTICE

This review highlights the need for standardised and comprehensive AI training programs for imaging staff.

ψ(2S) Suppression in Pb-Pb Collisions at the LHC

The production of the ψ(2S) charmonium state was measured with ALICE in Pb-Pb collisions at sqrt[s_{NN}]=5.02  TeV, in the dimuon decay channel. A significant signal was observed for the first time at LHC energies down to zero transverse momentum, at forward rapidity (2.5 Collapse

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Measurements of Groomed-Jet Substructure of Charm Jets Tagged by D^{0} Mesons in Proton-Proton Collisions at sqrt[s]=13 TeV

Understanding the role of parton mass and Casimir color factors in the quantum chromodynamics parton shower represents an important step in characterizing the emission properties of heavy quarks. Recent experimental advances in jet substructure techniques have provided the opportunity to isolate and characterize gluon emissions from heavy quarks. In this Letter, the first direct experimental constraint on the charm-quark splitting function is presented, obtained via the measurement of the groomed shared momentum fraction of the first splitting in charm jets, tagged by a reconstructed D^{0} meson. The measurement is made in proton-proton collisions at sqrt[s]=13  TeV, in the low jet transverse-momentum interval of 15≤p_{T}^{jet ch}<30  GeV/c where the emission properties are sensitive to parton mass effects. In addition, the opening angle of the first perturbative emission of the charm quark, as well as the number of perturbative emissions it undergoes, is reported. Comparisons to measurements of an inclusive-jet sample show a steeper splitting function for charm quarks compared with gluons and light quarks. Charm quarks also undergo fewer perturbative emissions in the parton shower, with a reduced probability of large-angle emissions.

Temporal Incidence and Patterns of Distant Failure for Human Papillomavirus (HPV) Related Oropharyngeal Cancer

PURPOSE/OBJECTIVE(S)

HPV related oropharyngeal cancer (HPV-OPC) enjoys improved treatment outcomes relative to non-HPV related disease but suffers from similar rates of distant metastases (DM) following treatment. Emerging data supports radical intent therapy for oligometastatic relapsed HPV-OPC, suggesting early diagnosis of DM may be beneficial to outcome. We assess temporal patterns in distance relapse to investigate rationalization of post treatment imaging.

MATERIALS/METHODS

A retrospective single center cohort study was carried out of consecutive HPV-OPC treated with radical intent (chemo)radiotherapy ((CT)RT) between 2011 and 2020. Electronic records were reviewed to identify location and timing of development of DM. Oligometastatic (OM) state was defined as

RESULTS

A total of 793 HPV-OPC patients were identified with median follow-up 3.15 years (range 0.2-8.9). The median time to recurrence was 15.1 months (range: 2.6-63 months). 87% of DM occurred in the first two years after treatment. Pattern of failure by stage are shown in table 1. Indications for scans performed identifying DM alone were symptoms (66%), follow-up imaging based on previous radiological findings (15%), disease response assessment imaging (15%), and incidental findings (4%). Sites of distant metastasis were lung (64%), thoracic nodes (36.5%), bone (27%), visceral (23%), brain (4%) and skin (2%). The sites of visceral metastasis involvement included liver (92%), Adrenal (18%), kidney (18%), and spleen (9%). Treatment offered to patients with OM alone was best supportive care (46%), palliative chemotherapy (15.4%), palliative RT (23%), immunotherapy (8%), and one patient lost to follow up (8%). SBRT was not available during time period. Median survival following diagnosis was 17.5 months (range 4.4-85.4 months).

CONCLUSION

Despite no routine imaging beyond initial treatment response assessment, we identify a small minority of HPV OPC patients with OM recurrence that is associated with better outcome and occasional long-term cure from aggressive therapy. The majority (69%) of DM occur in the thorax/upper abdomen of patients in the first two years post treatment. This finding supports the potential utility of regular imaging of thorax/upper abdomen during early follow.

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Measurement of the Lifetime and Λ Separation Energy of _{Λ}^{3}H

The most precise measurements to date of the _{Λ}^{3}H lifetime τ and Λ separation energy B_{Λ} are obtained using the data sample of Pb-Pb collisions at sqrt[s_{NN}]=5.02  TeV collected by ALICE at the LHC. The _{Λ}^{3}H is reconstructed via its charged two-body mesonic decay channel (_{Λ}^{3}H→^{3}He+π^{-} and the charge-conjugate process). The measured values τ=[253±11(stat)±6(syst)]  ps and B_{Λ}=[102±63(stat)±67(syst)]  keV are compatible with predictions from effective field theories and confirm that the _{Λ}^{3}H structure is consistent with a weakly bound system.

Measurement of the J/ψ Polarization with Respect to the Event Plane in Pb-Pb Collisions at the LHC

We study the polarization of inclusive J/ψ produced in Pb-Pb collisions at sqrt[s_{NN}]=5.02  TeV at the LHC in the dimuon channel, via the measurement of the angular distribution of its decay products. We perform the study in the rapidity region 2.5 Collapse

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First Measurement of Antideuteron Number Fluctuations at Energies Available at the Large Hadron Collider

The first measurement of event-by-event antideuteron number fluctuations in high energy heavy-ion collisions is presented. The measurements are carried out at midrapidity (|η|<0.8) as a function of collision centrality in Pb-Pb collisions at sqrt[s_{NN}]=5.02  TeV using the ALICE detector. A significant negative correlation between the produced antiprotons and antideuterons is observed in all collision centralities. The results are compared with a state-of-the-art coalescence calculation. While it describes the ratio of higher order cumulants of the antideuteron multiplicity distribution, it fails to describe quantitatively the magnitude of the correlation between antiproton and antideuteron production. On the other hand, thermal-statistical model calculations describe all the measured observables within uncertainties only for correlation volumes that are different with respect to those describing proton yields and a similar measurement of net-proton number fluctuations.

Enhanced Deuteron Coalescence Probability in Jets

The transverse-momentum (p_{T}) spectra and coalescence parameters B_{2} of (anti)deuterons are measured in p-p collisions at sqrt[s]=13  TeV for the first time in and out of jets. In this measurement, the direction of the leading particle with the highest p_{T} in the event (p_{T}^{lead}>5  GeV/c) is used as an approximation for the jet axis. The event is consequently divided into three azimuthal regions, and the jet signal is obtained as the difference between the toward region, that contains jet fragmentation products in addition to the underlying event (UE), and the transverse region, which is dominated by the UE. The coalescence parameter in the jet is found to be approximately a factor of 10 larger than that in the underlying event. This experimental observation is consistent with the coalescence picture and can be attributed to the smaller average phase-space distance between nucleons in the jet cone as compared with the underlying event. The results presented in this Letter are compared to predictions from a simple nucleon coalescence model, where the phase-space distributions of nucleons are generated using pythia8 with the Monash 2013 tuning, and to predictions from a deuteron production model based on ordinary nuclear reactions with parametrized energy-dependent cross sections tuned on data. The latter model is implemented in pythia8.3. Both models reproduce the observed large difference between in-jet and out-of-jet coalescence parameters, although the almost flat trend of the B_{2}^{Jet} is not reproduced by the models, which instead give a decreasing trend.

Combining C-reactive protein and quick sequential organ failure assessment (qSOFA) to improve prognostic accuracy for sepsis and mortality in adult inpatients: A systematic review

Background and Aims

Infections are common in hospitals, and if mismanaged can develop into sepsis, a leading cause of death and disability worldwide. This study aimed to examine whether combining C-reactive protein (CRP) with the quick sequential organ failure assessment (qSOFA) improves its accuracy for predicting mortality and sepsis in adult inpatients.

Methods

PubMed, MEDLINE, EMBASE, Scopus, Web of Science, Science Direct, CINAHL, Open Grey, Grey Literature Report, and the Clinical Trials registry were searched using CRP and qSOFA search terms. Title, abstract, and full-text screening were performed by two independent reviewers using pre-determined eligibility criteria, followed by data extraction and a risk of bias assessment using the Quality Assessment tool for Diagnostic Accuracy Studies 2 (QUADAS-2). Disagreements were settled through discussion and consultation with a third reviewer.

Results

Four retrospective studies with a total of 2070 patients were included in this review. Adding CRP to qSOFA improved the Area Under the Receiver Operating Characteristic Curve up to 9.7% for predicting mortality and by 14.9% for identifying sepsis. The sensitivity and specificity of the combined score for mortality prediction were available in two studies. CRP improved the sensitivity of qSOFA by 43% and 71% while only decreasing the specificity by 12% and 7%, respectively. A meta-analysis was not performed due to study heterogeneity.

Conclusion

This comprehensive review provided initial evidence that combining CRP with qSOFA may improve the accuracy of qSOFA alone in identifying sepsis or patients at risk of dying in hospital. The combined tool demonstrated the potential to improve patient outcomes, with implications for low-resource settings given its simplicity and low-cost.

Patients' perspectives of the skills and competencies of therapy radiographers/radiation therapists (TRs/RTTs) in the UK, Portugal and Malta; a qualitative study from the SAFE Europe project

INTRODUCTION

The role of the Therapy Radiographer/Radiation Therapist (TR/RTT) is to provide radiotherapy to patients with a cancer diagnosis. This includes, not only administration of treatment, but also management of side-effects and provision of support/care. Despite this role being consistent throughout Europe, there is currently no standardisation of education for TRs/RTTs. The SAFE EUROPE project aims to standardize TR/RTT education to enable 'safe and free exchange' of TRs/RTTs across Europe. Consequently, this study aims to explore patients' perspectives regarding the current skills and competencies of TRs/RTTs.

METHODS

From May 2021 to February 2022, semi-structured interviews were conducted with patients who had recently received radiotherapy in the UK, Malta and Portugal. Ethical approval for this study was granted by the NHS Research Ethics Committee with additional local approvals obtained.

RESULTS

Forty-eight participants from the UK (n = 18), Portugal (n = 19), and Malta (n = 11) completed interviews. Participants described high satisfaction with TRs'/RTTs' competence and skills in all three countries. The main theme arising from the analysis was the importance of trust building with TRs/RTTs. Six factors were identified as influencing levels of trust: communication; side-effect management; team consistency; relational skills; patient dignity; and competence. A small number of patients reported feeling rushed and not having their physical and emotional needs met by TRs/RTTs.

CONCLUSION

This multicentre study demonstrated that patients perceive TRs/RTTs in the UK, Malta and Portugal as highly competent and skilled. Practical recommendations are provided to address identified deficits in practice, which can be addressed through adaptation of TR/RTT education/training and clinical practice.

IMPLICATIONS FOR PRACTICE

Recommendations arising from this study are important to ensure that TRs/RTTs have transferable skills that provide consistently high quality care to patients throughout Europe.

Advanced practice roles amongst therapeutic radiographers/radiation therapists: A European survey

INTRODUCTION

Advanced Practice (AP) roles in Radiotherapy (RT) over time are variable, often locally developed and not underpinned by professional standards which leads to conceptual and practical gaps. This study aimed to assess AP roles amongst Therapeutic Radiographers/Radiation Therapists (TR/RTTs) and identify educational gaps for this level across Europe.

METHODS

An anonymous online survey was designed, validated, and distributed across Europe. Convenience sampling was used to recruit advanced TR/RTTs practitioners or TR/RTTs working in AP roles. Descriptive analysis from closed questions and thematic analyses from open questions are reported.

RESULTS

A total of 272 responses were obtained, of which 189 eligible participations were from 21 European countries. 42% of respondents acknowledged additional education required to perform AP, and 25% reported a minimum of five years of RT practice to perform AP roles/tasks. There is a trend to work more on the clinical practice domain with a low percentage of working time allocated to research. Inconsistency was found in job titles, scopes of practice, and educational backgrounds across and even within countries. Education needs regarding knowledge about image-guided and adaptive RT, multimodal imaging and technologies, and advanced treatment planning were found. Training needs on leadership and management skills and clinical site-specific expertise were identified.

CONCLUSION

This study clearly shows a gap in education support, a need for standardisation in job titles and scopes of practice across Europe.

IMPLICATIONS FOR PRACTICE

As the first large-scale assessment of current AP roles and educational support amongst TR/RTTs across Europe, this study recommends the establishment of governance structure and role regulation. It also informs the curricula for master programmes to align the education with current and future practice.

An evaluation of knowledge of circular economy among Therapeutic Radiographers/Radiation Therapists (TR/RTTs): Results of a European survey to inform curriculum design

INTRODUCTION

Global warming and the increase in greenhouse gases are a current concern worldwide. The healthcare sector constitutes about 4.4% of all emissions. This study aims to evaluate the knowledge, awareness and attitudes of Therapeutic Radiographers/Radiation Therapists (TR/RTTs) regarding environment-related concepts to inform the development of educational curriculum.

METHODS

A validated self-designed survey was distributed to TR/RTTs across Europe by the SAFE EUROPE partners and via social media between October 2021 and February 2022. The survey was divided into six sections: (i) demographics, (ii) knowledge of Circular Economy (CE) and Green Skills (GS), (iii) personal attitudes, (iv) TR/RTTs attitudes, (v) the importance of CE, and (vi) education. Questions consisted of mostly Likert scales complemented with other closed- and open-ended questions.

RESULTS

31%-42% of participants are aware of national and departmental policies in CE and GS concepts. Even though half of the participants considered that they advocate and practice CE, the open questions indicated that participants only focus on waste management, ignoring all the other dimensions of CE in healthcare. Personal attitudes and lifestyles also did not reflect CE. TR/RTTs considered CE practices and GS development essential. However, the suggested academic level at which these skills should be developed was split between High School (44%) and Bachelor's degree (32%).

CONCLUSION

It is essential to raise awareness among TR/RTTs about the various dimensions of CE applied to healthcare: "green transportation", "environment-friendly procurement", "hospital building design", "food process optimisation", "water reduction", "energy efficiency", and "waste management".

IMPLICATIONS FOR PRACTICE

These GS must be developed by TR/RTTs to decrease their impact on the environment. Their training may need to be lifelong, starting during basic high school education and continuing as healthcare professionals after graduation.

72 SEASONAL VARIATION IN HYPERPARATHYROIDISM IN OLDER IRISH ADULTS

Background

Vitamin D deficiency is common in Ireland, varies by season and can result in secondary hyperparathyroidism. High Parathyroid Hormone (PTH) levels due to low vitamin D status are associated with increased bone turnover and lower bone mineral density, especially at cortical sites such as the hip. Given the variation in vitamin D status by time of year, our study aimed to examine for seasonal differences in hyperparthyroidism in older adults.

Methods

Study participants were from a large cross-sectional study of older Irish adults recruited from hospital outpatient services and GP practices. Exclusion criteria were: eGFR&lt; 30ml/min and elevated serum calcium (&gt;2.5 mmol/l) in order to avoid primary hyperparathyroidism or elevated serum PTH due to advanced renal impairment. Hyperparathyroidism was defined as a PTH level &gt; 65 ng/ml. The relationship between hyperparathyroidism and season was examined in regression models adjusting for potential factors affecting PTH.

Results

There were 4324 participants, mean age 73.8 +/- 7.9 years, 65.4% were female. Hyperparathyroidism was more prevalent in Spring versus Autumn (17.4 vs 11.4 %, P = 0.0002). The increased prevalence remained after adjusting for age, gender, body mass index, timed up and go, dairy intake, eGFR, and smoking (OR 1.6, 1.2- 2.0, P=0.0003). This also corresponded to the seasonal variation in vitamin D status with deficiency (25(OH)D &lt; 30 nmol/l) highest in Spring (23.3%) and lowest in Autumn (16.8%).

Conclusion

We found that hyperparathyroidism fluctuates with season in an inverse relationship with vitamin D. Overall, high PTH levels were 60% more likely in Spring versus Autumn. This emphasises the importance of maintaining adequate vitamin D status all year round. While we adjusted for dairy intake, we did not have accurate measures of total dietary calcium intake which could also vary seasonally and be a contributory factor.

51 VITAMIN D DEFICIENCY IS ASSOCIATED WITH INCREASED RISK OF ATRIAL FIBRILLATION: A CROSS-SECTIONAL ANALYSIS

Background

Atrial Fibrillation (AF) is prevalent (up to 10.9%) in Irish adults aged over 65 and significantly increases stroke risk, as well as being associated with greater stroke severity. Identifying potential contributing factors to development of AF offers opportunity for AF prevention and reduction in associated morbidity. Low vitamin D status has been associated with AF but studies are inconsistent. We aimed to assess the potential relationship between vitamin D deficiency and self-reported AF in older Irish adults.

Methods

Participants were from a large cross-sectional study of Irish adults aged &gt;60 years, recruited from hospital outpatient services and GP practises. The diagnosis of AF was based on self-report so those with a Mini Mental State Examination (MMSE) &lt;25 were excluded. Vitamin D deficiency was defined as a 25(OH)D &lt;30 nmol/l. The relationship between deficiency and AF was explored in regression models.

Results

4264 participants, mean age 73.1± 8.0 years, female (67.4%) and 11.9% had AF. There was a higher prevalence of AF in those who were deficient vs non-deficient (17.2% vs 10.9%, P&lt;0.0001). In a subsample (n = 4043), increased risk remained after adjusting for age, gender, season, vitamin D supplement use, body mass index, timed up and go, alcohol intake, smoking status, hypertension, diabetes, and heart disease (coronary artery disease and/or heart failure) (OR: 1.3, 1.1- 1.7 , P =0.023).

Conclusion

We identified that vitamin D deficiency was independently associated with a 30% increased likelihood of self-reported AF in older adults. Vitamin D is known to inhibit the renin angiotensin, aldosterone system which may play a role in both structural and electrical remodelling of the atrium. It may also have anti-inflammatory properties which could protect against AF. We were not able to distinguish between valvular and non-valvular AF though findings offer an interesting insight for potential further investigation.

73 PREVALENCE OF SECONDARY HYPERPARATHYROIDISM BY VITAMIN D STATUS IN OLDER IRISH ADULTS

Background

Secondary hyperparathyroidism commonly results from vitamin D deficiency and can lead to accelerated bone turnover and bone loss, especially at cortical sites like the hip. It can also attenuate the response to antiresorptive treatments used for osteoporosis. However, several factors may influence PTH response. We aimed to identify the prevalence of secondary hyperparathyroidism by categories of vitamin D status in older Irish adults attending a bone health clinic.

Methods

The study population consisted of older adults (aged over 60 years) attending a bone health clinic at a large hospital. Participants with a serum calcium &gt;2.5 mmol/l and eGFR &lt;30 ml/min were excluded to avoid cases of primary hyperparathyroidism or elevated serum PTH due to advanced renal disease. Hyperparathyroidism was defined as a serum PTH &gt; 65 pg/ml. 25 hydroxyvitamin D (25(OH)D) was measured with liquid chromatography mass spectroscopy.

Results

There were 800 cases identified, mean age 72.9 +/- 7.9 years, and 85.3% were female. The prevalence of secondary hyperparathyroidism by 25(OH)D categories were 28.1% (&lt;30nmol/l), 17.4% (30-49.9 nmol/l) and 8.0% (50-74 nmol/l). Older age (P &lt; 0.03) and lower eGFR (P = 0.01) were associated with hyperparathyroidism independent of vitamin D status.

Conclusion

Nearly one-third of patients who were vitamin D deficient (&lt;30 nmol/L) and one-sixth who were insufficient (30-49.9 nmol/l) had hyperparathyroidism, similar to the results of other studies. However, hyperparathyroidism was also observed in 8% of those with 25(OH)D levels between 50 -74 nmol/l, suggesting that higher levels i.e. ≥ 75 nmol/l may be preferable in older adults. Lower eGFR and older age were also independently associated with higher PTH, consistent with previous research. Higher dietary and supplemental calcium intake is also known to suppress PTH response, though we were not able to account for this in our study.

17 CROSS-SECTIONAL AND LONGITUDINAL RELATIONSHIPS BETWEEN MOBILITY, NEUROPSYCHOLOGICAL PERFORMANCE AND FALLS IN COMMUNITY-DWELLING OLDER ADULTS: DATA FROM TUDA

Background

Impaired mobility is associated with incident cognitive impairment and dementia. However, the complex bi-directional temporal relationships between subtle impairments in neuropsychological performance, mobility trajectories and falls is poorly understood.

Methods

Using data from the Trinity, Ulster Department of Agriculture (TUDA/TUDA5+) study, we evaluated cross-sectional and longitudinal relationships between impaired mobility, neuropsychological performance and falls using regression models adjusted for important clinical confounders. Older adults with potential cognitive impairment (Mini-Mental State Examination score &lt;25) were excluded. Detailed neuropsychological assessment was performed using the RBANS (Repeatable Battery for Neuropsychological Assessment) and FAB (Frontal Assessment Battery). Impaired mobility was assessed using Irish population-specific age/sex/height-specific Timed-Up-and-Go (TUG) cut-offs.

Results

Of 4,103 participants (72.9 ± 7.9 years; 67.4% female), just under one-fifth (17.5%) met criteria for impaired mobility. Older adults with impaired mobility had significantly greater likelihood of impaired neuropsychological performance, in particular for language (OR 1.77; 1.35-2.31; p&lt;0.001) and attention (OR 1.69; 1.37-2.08; p&lt;0.001) domains. In 953 participants followed for a median 5.2 (IQR: 4.83-7.26) years, impaired mobility at baseline significantly predicted incident impairment in immediate memory (OR 2.56; 1.33-4.95; p&lt;0.001). Stronger relationships were seen for impaired neuropsychological performance predicting mobility decline rather than impaired mobility predicting cognitive decline (all p&lt;0.001). Both impaired mobility and neuropsychological performance were associated with incident falls, particularly for impairments in executive function and attention (all p&lt;0.001). Impaired mobility in isolation had poor performance as a sole test to predict incident cognitive impairment (AUC: 0.55-0.65).

Conclusion

In both cross-sectional and longitudinal analyses, impaired mobility is associated with subtle impairments in neuropsychological performance. Whilst impaired neuropsychological performance was a greater predictor of impaired mobility rather than vice versa, our findings highlight the complex relationship between mobility and cognitive trajectories in older adults, emphasising the need for comprehensive cognitive and falls assessment in those presenting with new-onset subtle impairments in mobility and cognition.

261 HIGH FRACTURE RISK IN OLDER IRISH ADULT FALLERS

Background

Fracture risk due to falls depends on several factors including bone density, quality and size, hip geometry (axis length), direction of fall (forward, backwards or sideways), body mass index (BMI), type of surface impacted, body site of impact and mechanism of fall (eg syncope). We aimed to identify the fracture risk per fall in frail older Irish adults.

Methods

Participants were from the hypertensive and cognitive cohort of the Trinity, Ulster, Dept Agriculture (TUDA) study of Irish adults (aged &gt;60) recruited from hospital outpatient services and GP practises. Falls and falls resulting in fracture in the previous year were self-reported so those with an MMSE &lt; 25 were excluded to avoid recall bias. We identified fallers, recurrent fallers and fractures due to falls in the previous year.

Results

892 fallers, mean age 76.3 ± 8.4 yrs, 65.2% female. 23.8% had 2 falls and 24.2% ≥3 falls. Mean timed up and go was 17.3 ± 9.5 seconds. Commonest fracture due to falls were hip (20.1%), upper limb (18.5%) and lower limb (17.9%) with one fracture of neck and skull. Fracture rate per fall was 7.1%: 1.7% for hip, 1.3% for lower and 1.2% for upper limb. Annual fracture rate per faller was 16.5%. The only predictors of fall with fracture versus no fracture were female sex (OR 2.4, 1.6-3.6, P&lt;0.001) and lower body mass index (P=0.001).

Conclusion

We identified similar hip fracture rates (1.7%) due to falls as in other studies. However, one in six fallers had sustained a fracture in the previous year reflecting the high proportion of recurrent fallers. Lower BMI and female sex predicted fall with fracture as both are strongly correlated with risk of osteoporosis. Recent guidelines now factor in recurrent falls when estimating the probability of future osteoporotic fractures.

126 CENTRAL ADIPOSITY IS ASSOCIATED WITH INCREASED PREVALENCE OF VERTEBRAL FRACTURES

Background

Increased body weight and obesity are associated with greater bone mineral density (BMD) though effects on fracture risk appear to be site specific. In particular, the relationship between Body Mass Index (BMI), abdominal weight and Vertebral Fractures (VF) is complex. Some studies have found greater incidence of VF's with obesity though results are inconsistent. Recent evidence supports a stronger association between measures of abdominal fat and VF's. We aimed to examine the association between central adiposity and VF's in older Irish adults.

Methods

Participants were from a large cross-sectional study of older Irish adults (aged &gt;60) attending GP or hospital outpatient services. VF diagnosis was based on self-report (ie. clinical vertebral fracture) so we excluded those with a Mini Mental State Examination (MMSE) &lt; 25. BMD was measured with DXA and patients taking antiresorptive or anabolic therapies were excluded. The relationship of waist hip ratio (a surrogate marker of central adiposity) with VF's was explored in regression models.

Results

2055 identified, mean age 69.8 ± 6.3 years (range 60-99), 58.6% female. Vertebral fracture prevalence was 6.3% (n=130). Waist hip ratio was positively associated with presence of a vertebral fracture after adjusting for age, sex, BMI, timed up and go, smoking, serum vitamin D, lumbar spine BMD and steroid use &gt; 3 months (beta: 0.04, P&lt;0.001).

Conclusion

We identified that central adiposity (as measured by waist/hip ratio) was associated with VF presence independent of several factors including BMI and spine BMD. This suggests that body fat distribution and/or altered bone quality may play a role. Visceral body fat (which is correlated with waist hip ratio) is associated with increased production of adipocytokines, altered vertebral geometry and micro-architecture, increased vertebral bone marrow fat and greater loading forces on the spine, all of which may mediate increased VF risk.

Does lactate enhance the prognostic accuracy of the quick Sequential Organ Failure Assessment for adult patients with sepsis? A systematic review

OBJECTIVES

To investigate whether adding lactate to the quick Sequential (sepsis-related) Organ Failure Assessment (qSOFA) improves the prediction of mortality in adult hospital patients, compared with qSOFA alone.

DESIGN

Systematic review in accordance with Preferred Reporting Items for a Systematic Review and Meta-analysis of Diagnostic Test Accuracy Studies guidelines.

DATA SOURCES

Embase, Medline, PubMed, SCOPUS, Web of Science, CINAHL and Open Grey databases were searched in November 2020.

ELIGIBILITY CRITERIA

Original research studies published after 2016 comparing qSOFA in combination with lactate (LqSOFA) with qSOFA alone in adult patients with sepsis in hospital. The language was restricted to English.

DATA EXTRACTION AND SYNTHESIS

Title and abstract screening, full-text screening, data extraction and quality assessment (using Quality Assessment of Diagnostic Accuracy Studies-2) were conducted independently by two reviewers. Extracted data were collected into tables and diagnostic test accuracy was compared between the two tests.

RESULTS

We identified 1621 studies, of which 11 met our inclusion criteria. Overall, there was a low risk of bias across all studies. The area under the receiver operating characteristic (AUROC) curve for qSOFA was improved by the addition of lactate in 9 of the 10 studies reporting it. Sensitivity was increased in three of seven studies that reported it. Specificity was increased in four of seven studies that reported it. Of the six studies set exclusively within the emergency department, five published AUROCs, all of which reported an increase following the addition of lactate. Sensitivity and specificity results varied throughout the included studies. Due to insufficient data and heterogeneity of studies, a meta-analysis was not performed.

CONCLUSIONS

LqSOFA is an effective tool for identifying mortality risk both in adult inpatients with sepsis and those in the emergency department. LqSOFA increases AUROC over qSOFA alone, particularly within the emergency department. However, further original research is required to provide a stronger base of evidence in lactate measurement timing, as well as prospective trials to strengthen evidence and reduce bias.

PROSPERO REGISTRATION NUMBER

CRD42020207648.

Evaluation of a training programme for Pharmacist Independent Prescribers in a care home medicine management intervention

BACKGROUND

The provision of independent prescribing rights for United Kingdom (UK) pharmacists has enabled them to prescribe within their area of competence. The aim of this study was to evaluate an evidence-based training programme designed to prepare Pharmacist Independent Prescribers (PIPs) to safely and effectively assume responsibility for pharmaceutical care of older people in care homes in the UK, within a randomised controlled trial.

METHODS

The training and competency assessment process included two training days, professional development planning against a bespoke competency framework, mentor support, and a viva with an independent General Practitioner (GP). Data on the PIPs' perceptions of the training were collected through evaluation forms immediately after the training days and through online questionnaires and interviews after delivery of the 6-month intervention. Using a mixed method approach each data set was analysed separately then triangulated providing a detailed evaluation of the process. Kaufman's Model of Learning Evaluation guided interpretations.

RESULTS

All 25 PIPs who received the training completed an evaluation form (N = 25). Post-intervention questionnaires were completed by 16 PIPs and 14 PIPs took part in interviews. PIPs reported the training days and mentorship enabled them to develop a personalised portfolio of competence in preparation for discussion during a viva with an independent GP. Contact with the mentor reduced as PIPs gained confidence in their role. PIPs applied their new learning throughout the delivery of the intervention leading to perceived improvements in residents' quality of life and medicines management. A few PIPs reported that developing a portfolio of competence was time intensive, and that further training on leadership skills would have been beneficial.

CONCLUSIONS

The bespoke training programme was fit for purpose. Mentorship and competency assessment were resource intensive but appropriate. An additional benefit was that many PIPs reported professional growth beyond the requirement of the study.

TRIAL REGISTRATION

The definitive RCT was registered with the ISRCTN registry (registration number ISRCTN 17,847,169 ).

Digital skills of therapeutic radiographers/radiation therapists - Document analysis for a European educational curriculum

INTRODUCTION

It is estimated that around 50% of cancer patients require Radiotherapy (RT) at some point during their treatment, hence Therapeutic Radiographers/Radiation Therapists (TR/RTTs) have a key role to play in patient management. It is essential for TR/RTTs to keep abreast with new technologies and continuously develop the digital skills necessary for safe RT practice. The RT profession and education is not regulated at European Union level, which leads to heterogeneity in the skills developed and practised among countries. This study aimed to explore the white and grey literature to collate data on the relevant digital skills required for TR/RTTs practice.

METHODS

An exhaustive systematic search was conducted to identify literature discussing digital skills of TR/RTTs; relevant grey literature was also identified. A thematic analysis was performed to identify and organise these skills into themes and sub-themes.

RESULTS

195 digital skills were identified, organised in 35 sub-themes and grouped into six main themes: (i) Transversal Digital Skills, (ii) RT Planning Image, (iii) RT Treatment Planning, (iv) RT Treatment Administration, (v) Quality, Safety and Risk Management, and (vi) Management, Education and Research.

CONCLUSION

This list can be used as a reference to close current gaps in knowledge or skills of TR/RTTs while anticipating future needs regarding the rapid development of new technologies (such as Artificial Intelligence or Big Data).

IMPLICATIONS FOR PRACTICE

It is imperative to align education with current and future RT practice to ensure that all RT patients receive the best care. Filling the gaps in TR/RTTs skill sets will improve current practice and provide TR/RTTs with the support needed to develop more advanced skills.

UK reporting radiographers' perceptions of AI in radiographic image interpretation - Current perspectives and future developments

INTRODUCTION

Radiographer reporting is accepted practice in the UK. With a national shortage of radiographers and radiologists, artificial intelligence (AI) support in reporting may help minimise the backlog of unreported images. Modern AI is not well understood by human end-users. This may have ethical implications and impact human trust in these systems, due to over- and under-reliance. This study investigates the perceptions of reporting radiographers about AI, gathers information to explain how they may interact with AI in future and identifies features perceived as necessary for appropriate trust in these systems.

METHODS

A Qualtrics® survey was designed and piloted by a team of UK AI expert radiographers. This paper reports the third part of the survey, open to reporting radiographers only.

RESULTS

86 responses were received. Respondents were confident in how an AI reached its decision (n = 53, 62%). Less than a third of respondents would be confident communicating the AI decision to stakeholders. Affirmation from AI would improve confidence (n = 49, 57%) and disagreement would make respondents seek a second opinion (n = 60, 70%). There is a moderate trust level in AI for image interpretation. System performance data and AI visual explanations would increase trust.

CONCLUSIONS

Responses indicate that AI will have a strong impact on reporting radiographers' decision making in the future. Respondents are confident in how an AI makes decisions but less confident explaining this to others. Trust levels could be improved with explainable AI solutions.

IMPLICATIONS FOR PRACTICE

This survey clarifies UK reporting radiographers' perceptions of AI, used for image interpretation, highlighting key issues with AI integration.

Hypertriton Production in p-Pb Collisions at sqrt[s_{NN}]=5.02 TeV

The study of nuclei and antinuclei production has proven to be a powerful tool to investigate the formation mechanism of loosely bound states in high-energy hadronic collisions. The first measurement of the production of _{Λ}^{3}H in p-Pb collisions at sqrt[s_{NN}]=5.02  TeV is presented in this Letter. Its production yield measured in the rapidity interval -1<y<0 for the 40% highest-multiplicity p-Pb collisions is dN/dy=[6.3±1.8(stat)±1.2(syst)]×10^{-7}. The measurement is compared with the expectations of statistical hadronization and coalescence models, which describe the nucleosynthesis in hadronic collisions. These two models predict very different yields of the hypertriton in charged particle multiplicity environments relevant to small collision systems such as p-Pb, and therefore the measurement of dN/dy is crucial to distinguish between them. The precision of this measurement leads to the exclusion with a significance larger than 6.9σ of some configurations of the statistical hadronization model, thus constraining the theory behind the production of loosely bound states at hadron colliders.

Polarization of Λ and Λ[over ¯] Hyperons along the Beam Direction in Pb-Pb Collisions at sqrt[s]_{NN}=5.02 TeV

The polarization of the Λ and Λ[over ¯] hyperons along the beam (z) direction, P_{z}, has been measured in Pb-Pb collisions at sqrt[s_{NN}]=5.02  TeV recorded with ALICE at the Large Hadron Collider (LHC). The main contribution to P_{z} comes from elliptic flow-induced vorticity and can be characterized by the second Fourier sine coefficient P_{z,s2}=⟨P_{z}sin(2φ-2Ψ_{2})⟩, where φ is the hyperon azimuthal emission angle and Ψ_{2} is the elliptic flow plane angle. We report the measurement of P_{z,s2} for different collision centralities and in the 30%-50% centrality interval as a function of the hyperon transverse momentum and rapidity. The P_{z,s2} is positive similarly as measured by the STAR Collaboration in Au-Au collisions at sqrt[s_{NN}]=200  GeV, with somewhat smaller amplitude in the semicentral collisions. This is the first experimental evidence of a nonzero hyperon P_{z} in Pb-Pb collisions at the LHC. The comparison of the measured P_{z,s2} with the hydrodynamic model calculations shows sensitivity to the competing contributions from thermal and the recently found shear-induced vorticity, as well as to whether the polarization is acquired at the quark-gluon plasma or the hadronic phase.

Potentially inappropriate prescribing in older adults with cancer receiving specialist palliative care: a retrospective analysis of medical records

Introduction

Older adults (≥65 years) with cancer often have existing comorbidities requiring multiple medications (1). Optimising medications in palliative care requires clinicians to consider whether each medication is appropriate in relation to patients’ context, treatment goals and life expectancy. The reported prevalence of potentially inappropriate prescribing (PIP) in general palliative care settings ranges from 15 to 92% (2). However, the application of tools that are specific to populations with limited life expectancy has been lacking in previous research (2).

Aim

To describe and assess the appropriateness of prescribing practices for older adults with cancer in the last seven days of life in an inpatient palliative care setting.

Methods

This was a retrospective observational study of medical records for older adults (≥65 years) with cancer who received inpatient specialist palliative care services in a hospice setting in Ireland in the final week of life over a two-year period. Data were extracted relating to patient demographics and prescribed medications using an electronic pro-forma. Medication appropriateness was assessed using the following tools: STOPPFrail (Version 2; consists of 25 deprescribing criteria for use in frail older adults with limited life expectancy), the OncPal deprescribing guideline (consists of eight medication classes for deprescribing in palliative patients with cancer) and criteria for identifying Potentially Inappropriate Prescribing in older adults with Cancer receiving Palliative Care (PIP-CPC; consists of 24 criteria for identifying potentially inappropriate prescribing of medications for symptomatic relief in older adults with cancer). These tools were retrospectively applied to the extracted data by the lead researcher. Data were analysed (Stata, Version 15) using descriptive statistics, including means (standard deviation, SD), medians (inter-quartile range, IQR) and frequency and percentage.

Results

One hundred and eighty older adults with cancer were included in this study. The majority were male (60.6%) and the median age was 74 years (range 65-94 years). The most common primary cancer diagnoses affected the digestive organs (31.7%), respiratory and intrathoracic organs (18.8%) and male genital organs (10%). Almost all patients (94.5%) had at least one comorbid condition (median 3, IQR 2-5). The median number of medications increased from five (IQR 3-7) seven days before death, to 11 medications on the day of death (IQR 9-15). The most prevalent drug classes were opioids, antipsychotics, antispasmodics, benzodiazepines and paracetamol. More than half of patients had at least one PIP identified by the tools (n=97, 53.9%). The identified prevalence of PIP per tool in the patient cohort was: STOPPFrail V2 (20.6%), OncPal (12.7%), PIP-CPC (32.8%). However, several criteria could not be applied due to the absence of clinical information.

Conclusion

This study highlights that the number of medications prescribed to older adults with cancer increased as time to death approached, and that more than half of patients received at least one medication which was considered potentially inappropriate during their last week of life. The absence of electronic prescribing records and retrospective nature of the study limited the applicability of some criteria. Interventions are needed to optimise medication prescribing and use in palliative care settings.

References

(1) Sharma M, Loh KP, Nightingale G, Mohile SG, Holmes HM. Polypharmacy and potentially inappropriate medication use in geriatric oncology. J Geriatr Oncol. 2016;7(5):346-53.

(2) Cadogan CA, Murphy M, Boland M, Bennett K, McLean S, Hughes C. Prescribing practices, patterns, and potential harms in patients receiving palliative care: A systematic scoping review. Expl Res Clinic Soc Pharm. 2021;1(3):100050.

Measurement of the Groomed Jet Radius and Momentum Splitting Fraction in pp and Pb-Pb Collisions at sqrt[s_{NN}]=5.02 TeV

This article presents groomed jet substructure measurements in pp and Pb-Pb collisions at sqrt[s_{NN}]=5.02  TeV with the ALICE detector. The soft drop grooming algorithm provides access to the hard parton splittings inside a jet by removing soft wide-angle radiation. We report the groomed jet momentum splitting fraction, z_{g}, and the (scaled) groomed jet radius, θ_{g}. Charged-particle jets are reconstructed at midrapidity using the anti-k_{T} algorithm with resolution parameters R=0.2 and R=0.4. In heavy-ion collisions, the large underlying event poses a challenge for the reconstruction of groomed jet observables, since fluctuations in the background can cause groomed parton splittings to be misidentified. By using strong grooming conditions to reduce this background, we report these observables fully corrected for detector effects and background fluctuations for the first time. A narrowing of the θ_{g} distribution in Pb-Pb collisions compared to pp collisions is seen, which provides direct evidence of the modification of the angular structure of jets in the quark-gluon plasma. No significant modification of the z_{g} distribution in Pb-Pb collisions compared to pp collisions is observed. These results are compared with a variety of theoretical models of jet quenching, and provide constraints on jet energy-loss mechanisms and coherence effects in the quark-gluon plasma.

Measurement of Prompt D^{0}, Λ_{c}^{+}, and Σ_{c}^{0,++}(2455) Production in Proton-Proton Collisions at sqrt[s]=13 TeV

The p_{T}-differential production cross sections of prompt D^{0}, Λ_{c}^{+}, and Σ_{c}^{0,++}(2455) charmed hadrons are measured at midrapidity (|y|<0.5) in pp collisions at sqrt[s]=13  TeV. This is the first measurement of Σ_{c}^{0,++} production in hadronic collisions. Assuming the same production yield for the three Σ_{c}^{0,+,++} isospin states, the baryon-to-meson cross section ratios Σ_{c}^{0,+,++}/D^{0} and Λ_{c}^{+}/D^{0} are calculated in the transverse momentum (p_{T}) intervals 2<p_{T}<12 and 1<p_{T}<24  GeV/c. Values significantly larger than in e^{+}e^{-} collisions are observed, indicating for the first time that baryon enhancement in hadronic collisions also extends to the Σ_{c}. The feed-down contribution to Λ_{c}^{+} production from Σ_{c}^{0,+,++} is also reported and is found to be larger than in e^{+}e^{-} collisions. The data are compared with predictions from event generators and other phenomenological models, providing a sensitive test of the different charm-hadronization mechanisms implemented in the models.

Measurement of the Cross Sections of Ξ_{c}^{0} and Ξ_{c}^{+} Baryons and of the Branching-Fraction Ratio BR(Ξ_{c}^{0}→Ξ^{-}e^{+}ν_{e})/BR(Ξ_{c}^{0}→Ξ^{-}π^{+}) in pp Collisions at sqrt[s]=13 TeV

The p_{T}-differential cross sections of prompt charm-strange baryons Ξ_{c}^{0} and Ξ_{c}^{+} were measured at midrapidity (|y|<0.5) in proton-proton (pp) collisions at a center-of-mass energy sqrt[s]=13  TeV with the ALICE detector at the LHC. The Ξ_{c}^{0} baryon was reconstructed via both the semileptonic decay (Ξ^{-}e^{+}ν_{e}) and the hadronic decay (Ξ^{-}π^{+}) channels. The Ξ_{c}^{+} baryon was reconstructed via the hadronic decay (Ξ^{-}π^{+}π^{+}) channel. The branching-fraction ratio BR(Ξ_{c}^{0}→Ξ^{-}e^{+}ν_{e})/BR(Ξ_{c}^{0}→Ξ^{-}π^{+})=1.38±0.14(stat)±0.22(syst) was measured with a total uncertainty reduced by a factor of about 3 with respect to the current world average reported by the Particle Data Group. The transverse momentum (p_{T}) dependence of the Ξ_{c}^{0}- and Ξ_{c}^{+}-baryon production relative to the D^{0} meson and to the Σ_{c}^{0,+,++}- and Λ_{c}^{+}-baryon production are reported. The baryon-to-meson ratio increases toward low p_{T} up to a value of approximately 0.3. The measurements are compared with various models that take different hadronization mechanisms into consideration. The results provide stringent constraints to these theoretical calculations and additional evidence that different processes are involved in charm hadronization in electron-positron (e^{+}e^{-}) and hadronic collisions.

43 REDUCED KIDNEY FUNCTION IS ASSOCIATED WITH POORER GLOBAL AND DOMAIN-SPECIFIC COGNITIVE PERFORMANCE IN COMMUNITY-DWELLING OLDER ADULTS

Background

Chronic Kidney Disease (CKD) is an important risk factor in the development of cognitive impairment. However, the association between reduced estimated Glomerular Filtration Rate (eGFR) and performance on domain-specific cognitive and neuropsychological assessments is less clear and may represent an important target in the promotion of optimal brain health in older adults.

Methods

Participants from the Trinity, Ulster and Department of Agriculture cohort study underwent detailed assessment of cognitive and neuropsychological function using the Mini-Mental State Examination (MMSE), Frontal Assessment Battery (FAB) and Repeatable Battery for Assessment of Neuropsychological Status (RBANS). Mixed-effects Poisson and linear regression was used to assess the relationship between eGFR strata and cognitive/neuropsychological test performance.

Results

4,887 participants were included (73.94 ± 8.25 years; 67.7% female). Reduced eGFR was associated with poorer performance on all three cognitive assessments, most pronounced in those with eGFR &lt;45 mL/mL/1.73m2 (IRR: 1.19; 95% CI: 1.09, 1.29; p &lt; 0.001 for MMSE/IRR: 1.14; 95% CI 1.04, 1.24; p &lt; 0.001 for the FAB/β: -3.23; 95% CI -5.18, −1.30; p = 0.001 for RBANS, fully adjusted). Reduced eGFR was associated with poorer performance on immediate memory, visual–spatial and attention RBANS domains. Associations were strongest in the youngest old (&lt;70 years) with no association observed in those aged &gt;80 years.

Conclusion

Reduced kidney function was associated with poorer global and domain-specific function in community-dwelling older adults. Associations were strongest for those with eGFR &lt;45 mL/min/1.73m2 and the youngest-old, suggesting that this group may be most at risk and may benefit from potential preventative interventions.

135 VITAMIN D FORTIFIED MILK—EFFECT ON VITAMIN D STATUS IN OLDER ADULTS

Background

Vitamin D fortified milk is used by some older adults to boost vitamin D status. Combined vitamin D/calcium supplements often cause gastrointestinal upset which reduces adherence. Consumption of fortified milk may be a more consistent and reliable way of increasing serum 25 hydroxyvitamin D [25(OH)D], though studies of it’s efficacy in older adults are limited.

Methods

We examined the vitamin D status of users of vitamin D fortified milk in participants of a longitudinal study of community dwelling Irish adults aged &gt;60 yrs. Patients taking vitamin D supplements were excluded and independent effects were explored in multinomial regression models. Vitamin D deficiency was defined as a 25(OH)D level &lt; 30 nmol/l.

Results

2496 participants were identified: mean age was 70.5 ± 7.0 years (range 60–96 yrs) and 145 (5.8%) reported using vitamin D fortified milk. In those who consumed fortified milk, there was a lower prevalence of vitamin D deficiency (17.9 vs 34.5%, P &lt; 0.001). Vitamin D fortified milk also predicted less deficiency after adjusting for age, gender, season, BMI and physical frailty (OR 0.30. CI 0.19–0.48, P &lt; 0.001).

Conclusion

Vitamin D fortified milk was associated with a 70% reduction in the risk of vitamin D deficiency in older adults not taking vitamin D supplements. Findings support the use of vitamin D fortified milk as an effective means of improving vitamin D status. Fortified milk also contains additional calcium and so can be used to augment daily calcium intake.

101 FACTORS ASSOCIATED WITH FEAR OF FALLING IN OLDER IRISH ADULTS

Background

Fear of falling is common in older adults and is associated with social isolation, reduced quality of life, depression and increased mortality. We aimed to investigate the factors associated with fear of falling in a cohort of older Irish adults.

Methods

Our study included adults aged ≥60 years attending outpatient services and recruited as part of the TUDA (Trinity, Ulster and Department of Agriculture) study. Physical frailty was measured with the Timed Up and Go (TUG), cognition with the Mini Mental State Examination (MMSE) and depression with the Center for Epidemiological Studies Depression scale (CES-D). Factors associated with fear of falling were explored in multinomial regression models.

Results

5185 adults were included, 67.3% female and mean age 74.0 ± 8.3 yrs. Fear of falling varied by age: 39.4% (60-70 yrs), 51.2% (70-80 yrs), 70.4% (80 + yrs). Independent positive predictors of fear of falling were age (beta 0.01, P = 0.030), female gender (OR 2.6, CI 2.2–3.2, P &lt; 0.001), fall in the previous year (OR 1.9, CI 1.6–2.3, P &lt; 0.001), depression (CES-D ≥ 16) (OR 1.7, CI 1.3–2.2, P &lt; 0.001), use of osteoporosis medications (OR 1.3, CI 1.1–1.6, P = 0.002), self reported dizziness on standing (OR 1.5, CI 1.3–1.8, P &lt; 0.001), physical frailty (TUG &gt;12 seconds, OR 1.30, CI 1.1–1.6, P = 0.004) and limiting outside activities (OR 16.3, CI 13.8–19.3, P &lt; 0.001).

Conclusion

We identified a high prevalence of fear of falling, though our study sample included frail older adults attending geriatric outpatient services. Those who fell in the last year and who were female were about twice as likely to fear falling. It was also more likely in those who were physically frailer, taking osteoporosis medications and reporting orthostatic symptoms. Notably those with a fear of falling were 70% more likely to be depressed and 16 times more likely to limit outside activities highlighting its negative impact.

130 PREDICTORS OF DRIVING STATUS IN OLDER IRISH ADULTS ATTENDING A GERIATRIC OUTPATIENT SERVICE

Background

The main mode of transportation in Ireland remains travel by car. Transport mobility is important for older adults in accessing shops, healthcare, services, community and in maintaining relationships. Cessation of driving is associated with negative effects on mental health, loneliness and physical health. We aimed to explore factors associated with driving status in older adults living in an urban environment.

Methods

Study included adults aged greater than 65 years attending a geriatric outpatient service in an urban environment and recruited as part of the TUDA (Trinity Ulster, Department of Agriculture) study. We excluded those with a MMSE (Mini-Mental State Exam) less than 24 as we aimed to include only non-dementia patients. Physical frailty was measured with the Timed Up and Go (TUG) and depression with the Center for Epidemiological Studies Depression scale (CES-D). Factors associated with driving status were explored in multinomial regression models.

Results

1978 adults, mean age 77.7 ± 7.1 years, 76.0% were female. 35.5% were current drivers but this differed by age category 45.9% (65–75 years), 25% (75–85 years) and 12.5% (85+ years). 28.1% were past drivers. Positive independent predictors of current driving were younger age (P &lt; 0.001), male gender (P &lt; 0.001), married status (P = 0.01), higher socioeconomic status (P &lt; 0.0001) while negative predictors included physical frailty (TUG, P &lt; 0.001), visual impairment (P = 0.01), stroke (P &lt; 0.001), depression (P &lt; 0.001) and self reported loneliness (P = 0.01).

Conclusion

One third of patients attending a geriatric outpatients in an urban environment were currently driving which is much lower than in the general older Irish population. However, our study included frail adults living in more deprived socioeconomic areas and had a high proportion of females who had never learned to drive. Furthermore, access to urban public transport may be a factor. Non-drivers were more likely to have depression and report loneliness independent of other factors highlighting its negative impact.