Now showing items 21-27 of 27

    • Fall prevention interventions in primary care to reduce fractures and falls in people aged 70 years and over: the PreFIT three-arm cluster RCT

      Bruce, Julie; Hossain, Anower; Lall, Ranjit; Withers, Emma J.; Finnegan, Susanne; Underwood, Martin; Ji, Chen; Bojke, Chris; Longo, Roberta; Hulme, Claire; et al. (NIHR Journals Library, 2021-05)
      Background: Falls and fractures are a major problem. Objectives: To investigate the clinical effectiveness and cost-effectiveness of alternative falls prevention interventions. Design: Three-arm, pragmatic, cluster randomised controlled trial with parallel economic analysis. The unit of randomisation was the general practice. Setting: Primary care. Participants: People aged ≥ 70 years. Interventions: All practices posted an advice leaflet to each participant. Practices randomised to active intervention arms (exercise and multifactorial falls prevention) screened participants for falls risk using a postal questionnaire. Active treatments were delivered to participants at higher risk of falling. Main outcome measures: The primary outcome was fracture rate over 18 months, captured from Hospital Episode Statistics, general practice records and self-report. Secondary outcomes were falls rate, health-related quality of life, mortality, frailty and health service resource use. Economic evaluation was expressed in terms of incremental cost per quality-adjusted life-year and incremental net monetary benefit. Results: Between 2011 and 2014, we randomised 63 general practices (9803 participants): 21 practices (3223 participants) to advice only, 21 practices (3279 participants) to exercise and 21 practices (3301 participants) to multifactorial falls prevention. In the active intervention arms, 5779 out of 6580 (87.8%) participants responded to the postal fall risk screener, of whom 2153 (37.3%) were classed as being at higher risk of falling and invited for treatment. The rate of intervention uptake was 65% (697 out of 1079) in the exercise arm and 71% (762 out of 1074) in the multifactorial falls prevention arm. Overall, 379 out of 9803 (3.9%) participants sustained a fracture. There was no difference in the fracture rate between the advice and exercise arms (rate ratio 1.20, 95% confidence interval 0.91 to 1.59) or between the advice and multifactorial falls prevention arms (rate ratio 1.30, 95% confidence interval 0.99 to 1.71). There was no difference in falls rate over 18 months (exercise arm: rate ratio 0.99, 95% confidence interval 0.86 to 1.14; multifactorial falls prevention arm: rate ratio 1.13, 95% confidence interval 0.98 to 1.30). A lower rate of falls was observed in the exercise arm at 8 months (rate ratio 0.78, 95% confidence interval 0.64 to 0.96), but not at other time points. There were 289 (2.9%) deaths, with no differences by treatment arm. There was no evidence of effects in prespecified subgroup comparisons, nor in nested intention-to-treat analyses that considered only those at higher risk of falling. Exercise provided the highest expected quality-adjusted life-years (1.120), followed by advice and multifactorial falls prevention, with 1.106 and 1.114 quality-adjusted life-years, respectively. NHS costs associated with exercise (£3720) were lower than the costs of advice (£3737) or of multifactorial falls prevention (£3941). Although incremental differences between treatment arms were small, exercise dominated advice, which in turn dominated multifactorial falls prevention. The incremental net monetary benefit of exercise relative to treatment valued at £30,000 per quality-adjusted life-year is modest, at £191, and for multifactorial falls prevention is £613. Exercise is the most cost-effective treatment. No serious adverse events were reported. Limitations: The rate of fractures was lower than anticipated. Conclusions: Screen-and-treat falls prevention strategies in primary care did not reduce fractures. Exercise resulted in a short-term reduction in falls and was cost-effective. Future work: Exercise is the most promising intervention for primary care. Work is needed to ensure adequate uptake and sustained effects. Trial registration: Current Controlled Trials ISRCTN71002650. Funding: This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 25, No. 34. See the NIHR Journals Library website for further project information.
    • Frailty assessment and acute frailty service provision in the UK: results of a national 'day of care' survey.

      Knight, Thomas; Atkin, Catherine; Martin, Finbarr C; Subbe, Chris; Holland, Mark; Cooksley, Tim; Lasserson, Daniel; Knight, Thomas; Lasserson, Daniel; Knight, Thomas; et al. (BMC, 2022-01-03)
      Background: The incorporation of acute frailty services into the acute care pathway is increasingly common. The prevalence and impact of acute frailty services in the UK are currently unclear. Methods: The Society for Acute Medicine Benchmarking Audit (SAMBA) is a day of care survey undertaken annually within the UK. SAMBA 2019 (SAMBA19) took place on Thursday 27th June 2019. A questionnaire was used to collect hospital and patient-level data on the structure and organisation of acute care delivery. SAMBA19 sought to establish the frequency of frailty assessment tool use and describe acute frailty services nationally. Hospitals were classified based on the presence of acute frailty services and metrics of performance compared. Results: A total of 3218 patients aged ≥70 admitted to 129 hospitals were recorded in SAMBA19. The use of frailty assessment tools was reported in 80 (62.0%) hospitals. The proportion of patients assessed for the presence of frailty in individual hospitals ranged from 2.2 to 100%. Bedded Acute Frailty Units were reported in 65 (50.3%) hospitals. There was significant variation in admission rates between hospitals. This was not explained by the presence of a frailty screening policy or presence of a dedicated frailty unit. Conclusion: Two fifths of participating UK hospitals did not have a routine frailty screening policy: where this existed, rates of assessment for frailty were variable and most at-risk patients were not assessed. Responses to positive results were poorly defined. The provision of acute frailty services is variable throughout the UK. Improvement is needed for the aspirations of national policy to be fully realised.
    • Health and wellbeing of older people in LMICs: a call for research-informed decision making.

      Goodman-Palmer, Dina; Ferriolli, Eduardo; Gordon, Adam L; Greig, Carolyn; Hirschhorn, Lisa R; Ogunyemi, Adedoyin O; Usmani, Bilal Ahmed; Yohannes, Tsion; Davies, Justine (Elsevier, 2023-02-11)
      No abstract available
    • Effects of GLP-1 Infusion upon whole-body glucose uptake and skeletal muscle perfusion during fed-state in older men.

      Abdulla, Haitham; Phillips, Bethan; Wilkinson, Daniel; Gates, Amanda; Limb, Marie; Jandova, Tereza; Bass, Joseph; Lewis, Johnathan; Williams, John; Smith, Kenneth; et al. (Oxford University Press, 2023-03-10)
      ntroduction: Ageing skeletal muscles become both insulin resistant and atrophic. The hormone glucagon-like peptide 1 (GLP-1) facilitates postprandial glucose uptake as well as augmenting muscle perfusion, independent of insulin action. We thus hypothesized exogenous GLP-1 infusions would enhance muscle perfusion and positively affect glucose metabolism during fed-state clamps in older people. Methods: Eight men (71 ± 1 years) were studied in a randomized crossover trial. Basal blood samples were taken before postprandial (fed-state) insulin and glucose clamps, accompanied by amino acid infusions, for 3 hours. Reflecting this, following insertions of peripheral and femoral vessels cannulae and baseline measurements, peripheral IV infusions of octreotide, insulin (Actrapid), 20% glucose, and mixed amino acids; Vamin 14-EF with or without a femoral arterial GLP-1 infusion were started. GLP-1, insulin, and C-peptide were measured by ELISA. Muscle microvascular blood flow was assessed via contrast enhanced ultrasound. Whole-body glucose handling was assayed by assessing glucose infusion rate parameters. Results: Skeletal muscle microvascular blood flow significantly increased in response to GLP-1 vs feeding alone (5.0 ± 2.1 vs 1.9 ± 0.7 fold-change from basal, respectively; P = 0.008), while also increasing whole-body glucose uptake (area under the curve 16.9 ± 1.7 vs 11.4 ± 1.8 mg/kg-1/180 minutes-1, P = 0.02 ± GLP, respectively). Conclusions: The beneficial effects of GLP-1 on whole-body glycemic control are evident with insulin clamped at fed-state levels. GLP-1 further enhances the effects of insulin on whole-body glucose uptake in older men, underlining its role as a therapeutic target. The effects of GLP-1 in enhancing microvascular flow likely also affects other glucose-regulatory organs, reflected by greater whole-body glucose uptake. Trial registration: ClinicalTrials.gov NCT02370745.
    • Development of a UK core dataset for geriatric medicine research: a position statement and results from a Delphi consensus process.

      Welch, Carly; Wilson, Daisy; Sayer, Avan A; Witham, Miles D; Jackson, Thomas A (BMC, 2023-03-23)
      Background: There is lack of standardisation in assessment tools used in geriatric medicine research, which makes pooling of data and cross-study comparisons difficult. Methods: We conducted a modified Delphi process to establish measures to be included within core and extended datasets for geriatric medicine research in the United Kingdom (UK). This included three complete questionnaire rounds, and one consensus meeting. Participants were selected from attendance at the NIHR Newcastle Biomedical Research Centre meeting, May 2019, and academic geriatric medicine e-mailing lists. Literature review was used to develop the initial questionnaire, with all responses then included in the second questionnaire. The third questionnaire used refined options from the second questionnaire with response ranking. Results: Ninety-eight responses were obtained across all questionnaire rounds (Initial: 19, Second: 21, Third: 58) from experienced and early career researchers in geriatric medicine. The initial questionnaire included 18 questions with short text responses, including one question for responders to suggest additional items. Twenty-six questions were included in the second questionnaire, with 108 within category options. The third questionnaire included three ranking, seven final agreement, and four binary option questions. Results were discussed at the consensus meeting. In our position statement, the final consensus dataset includes six core domains: demographics (age, gender, ethnicity, socioeconomic status), specified morbidities, functional ability (Barthel and/or Nottingham Extended Activities of Daily Living), Clinical Frailty Scale (CFS), cognition, and patient-reported outcome measures (dependent on research question). We also propose how additional variables should be measured within an extended dataset. Conclusions: Our core and extended datasets represent current consensus opinion of academic geriatric medicine clinicians across the UK. We consider the development and further use of these datasets will strengthen collaboration between researchers and academic institutions.
    • Hybrid immunity in older adults is associated with reduced SARS-CoV-2 infections following BNT162b2 COVID-19 immunisation

      Pallett, Scott J C; Heskin, Joseph; Keating, Fergus; Mazzella, Andrea; Taylor, Hannah; Patel, Aatish; Lamb, Georgia; Sturdy, Deborah; Eisler, Natalie; Denny, Sarah; et al. (Nature Research, 2023-06-16)
      Background: Older adults, particularly in long-term care facilities (LTCF), remain at considerable risk from SARS-CoV-2. Data on the protective effect and mechanisms of hybrid immunity are skewed towards young adults precluding targeted vaccination strategies. Methods: A single-centre longitudinal seroprevalence vaccine response study was conducted with 280 LCTF participants (median 82 yrs, IQR 76-88 yrs; 95.4% male). Screening by SARS-CoV-2 polymerase chain reaction with weekly asymptomatic/symptomatic testing (March 2020-October 2021) and serology pre-/post-two-dose Pfizer-BioNTech BNT162b2 vaccination for (i) anti-nucleocapsid, (ii) quantified anti-receptor binding domain (RBD) antibodies at three time-intervals, (iii) pseudovirus neutralisation, and (iv) inhibition by anti-RBD competitive ELISA were conducted. Neutralisation activity: antibody titre relationship was assessed via beta linear-log regression and RBD antibody-binding inhibition: post-vaccine infection relationship by Wilcoxon rank sum test. Results: Here we show neutralising antibody titres are 9.2-fold (95% CI 5.8-14.5) higher associated with hybrid immunity (p < 0.00001); +7.5-fold (95% CI 4.6-12.1) with asymptomatic infection; +20.3-fold, 95% (CI 9.7-42.5) with symptomatic infection. A strong association is observed between antibody titre: neutralising activity (p < 0.00001) and rising anti-RBD antibody titre: RBD antibody-binding inhibition (p < 0.001), although 18/169 (10.7%) participants with high anti-RBD titre (>100BAU/ml), show inhibition <75%. Higher RBD antibody-binding inhibition values are associated with hybrid immunity and reduced likelihood of infection (p = 0.003). Conclusions: Hybrid immunity in older adults was associated with considerably higher antibody titres, neutralisation and inhibition capacity. Instances of high anti-RBD titre with lower inhibition suggests antibody quantity and quality as independent potential correlates of protection, highlighting added value of measuring inhibition over antibody titre alone to inform vaccine strategy. Plain language summary Older adults continue to be at risk of COVID-19, particularly in residential care home settings. We investigated the effect of infection and vaccination on antibody development and subsequent SARS-CoV-2 infection in older adults. Antibodies are proteins that the immune system produces on infection or vaccination that can help respond to subsequent infection with SARS-CoV-2. We found that older adults produce antibodies to SARS-CoV-2 after 2-doses of Pfizer BioNTech BNT162b2 vaccine. The strongest immune responses were seen among those older adults who also had prior history of infection. The results highlight the importance of both antibody quality and quantity when considering possible indicators of protection against COVID-19 and supports the need for a third, booster, vaccination in this age group..
    • Acceptability and engagement amongst patients on oral and intravenous bisphosphonates for the treatment of osteoporosis in older adults.

      Narayanasamy, Melanie; Bishop, Simon; Sahota, Opinder; Paskins, Zoe; Gittoes, Neil; Langley, Tessa; Gittoes, Neil; Endocrinology; Medical and Dental (Oxford University Press, 2022-11-02)
      Background: Osteoporosis is common in older adults leading to fragility fractures at enormous individual and economic cost. Improving long-term adherence with bisphosphonate treatments reduces fracture risk, but adherence rates for first-line oral bisphosphonate alendronate remains low. Although alternative treatment regimens, including annual intravenous infusions are available, patient acceptability remains unclear. Therefore, understanding patients' acceptability and engagement in different bisphosphonate regimens is important to ensure optimal treatment benefits. Methods: Semi-structured interviews were conducted with 78 patients with a mean age of 69.9 years, who had taken or received bisphosphonates for osteoporosis within the last 24 months. Data analysis included iterative categorisation and used the theoretical framework of acceptability (TFA) to compare the acceptability of treatments regimens. Results: Treatment acceptability and engagement were influenced by the extent to which patients understood the prescribed treatment, and evidence of the treatment working. Acceptability and engagement were compromised when treatment was perceived as burdensome, personal costs were incurred, and patients' values were incompatible with the regimen. The balancing of these factors contributed to patients' ability to cope with the treatment and their emotional responses. Intravenous treatment was generally perceived as easier to understand, more effective, less burdensome with fewer opportunity costs, and a preferable regimen compared with oral bisphosphonates. Conclusions: Annual intravenous zoledronate bisphosphonate treatment was generally more acceptable to patients, perceived as more straightforward to engage in, although a small portion of patients on oral bisphosphonates were satisfied with treatment. Further research is needed to identify how acceptability and engagement can be optimised.