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Cotton S, McHugh MP, Dewar R, Haas JG, Templeton K. Investigation of hospital discharge cases and SARS-CoV-2 introduction into Lothian care homes. J Hosp Infect 2023; 135:28-36. [PMID: 36906180 PMCID: PMC9997060 DOI: 10.1016/j.jhin.2023.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 02/09/2023] [Accepted: 02/12/2023] [Indexed: 03/13/2023]
Abstract
BACKGROUND The first epidemic wave of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in Scotland resulted in high case numbers and mortality in care homes. In Lothian, over a third of care homes reported an outbreak while there was limited testing of hospital patients discharged to care homes. AIM Investigate hospital discharges as a source of SARS-CoV-2 introduction into care homes during the first epidemic wave. METHODS A clinical review was performed for all discharges from hospitals to care homes starting 1st March 2020 to 31st May 2020. Episodes were ruled out based on coronavirus disease (COVID-19) test history, clinical assessment at discharge, whole genome sequencing (WGS) data and an infectious period of 14 days. Clinical samples were processed for WGS, and consensus genomes generated were used for analysis by cluster investigation and virus epidemiological tool (CIVET). Patient timelines were obtained using electronic hospital records. FINDINGS In total 787 hospital discharges to care homes were identified. Out of these 776 (99%) were ruled out for hospital discharge introduction. However, for 10 episodes the results were inconclusive as there was low genomic diversity in consensus genomes or no sequencing data. Only one discharge episode had a genomic, time and location link to positive cases during hospital admission leading to 10 further positive cases in the care home. CONCLUSION Majority of hospital discharges were ruled out for introduction into Lothian care homes highlighting the importance of screening all new admissions when faced with a novel emerging virus and no vaccine available.
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Affiliation(s)
- S Cotton
- Specialist Virology Centre, Royal Infirmary Edinburgh, NHS Lothian, UK; Infection Medicine, Edinburgh Medical School, University of Edinburgh, UK.
| | - M P McHugh
- Specialist Virology Centre, Royal Infirmary Edinburgh, NHS Lothian, UK; School of Medicine, University of St Andrews, UK
| | - R Dewar
- Specialist Virology Centre, Royal Infirmary Edinburgh, NHS Lothian, UK
| | - J G Haas
- Specialist Virology Centre, Royal Infirmary Edinburgh, NHS Lothian, UK; Infection Medicine, Edinburgh Medical School, University of Edinburgh, UK
| | - K Templeton
- Specialist Virology Centre, Royal Infirmary Edinburgh, NHS Lothian, UK; Infection Medicine, Edinburgh Medical School, University of Edinburgh, UK
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Watson M, Filia K, Stevens A, Cotton S, Nelson B, Ratheesh A. A systematic review and meta-analysis of global and social functioning among people at risk of bipolar disorder. J Affect Disord 2023; 321:290-303. [PMID: 36306929 DOI: 10.1016/j.jad.2022.10.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 10/04/2022] [Accepted: 10/17/2022] [Indexed: 11/11/2022]
Abstract
BACKGROUND Functional status could predict development of bipolar disorder (BD) or have clinical significance. The relationship between BD risk and functioning is poorly understood. We undertook a systematic review examining the global and social functioning of those at risk for BD. METHODS We examined observational studies comparing a risk sample with healthy controls or full-threshold BD participants, using measures of global or social functioning. Risk status included family history of BD, meeting risk criteria, or having prodromal symptomatology, or premorbid functioning of persons with BD. Medline, PsycINFO, and Embase were searched. The Newcastle-Ottawa Scale for Cross-Sectional Studies was used to assess quality. Meta-analyses were performed where possible. RESULTS 7215 studies were screened and 40 studies were included (8474 participants). Risk samples had poorer functioning than controls, and superior functioning to participants with BD. Meta-analysis indicated poorer global functioning among persons with familial risk compared to healthy controls (mean global functional difference: 5.92; 95 % confidence interval: 7.90, 3.95; mean premorbid functioning difference: 2.31; 95 % confidence interval: 0.70, 3.92). Studies with higher proportions of female participants had slightly poorer global functioning. High heterogeneity was attributable functional measures and potentially functionally differential subgroups within the risk samples. LIMITATIONS Broader measures of functioning, such as neurocognition and behavioural measures, were excluded. Measures of global functioning are limited by conflating functioning and symptoms. CONCLUSIONS Functioning in the BD risk populations is intermediate to that of healthy controls and persons with BD, indicating their value in definitions of BD risk, in itself a likely heterogeneous state.
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Affiliation(s)
- M Watson
- The University of Melbourne, Centre for Youth Mental Health, Parkville 3052, Australia; The University of Melbourne, Melbourne Medical School, Parkville 3052, Australia
| | - K Filia
- Orygen, Parkville 3052, Australia
| | | | - S Cotton
- Orygen, Parkville 3052, Australia
| | - B Nelson
- Orygen, Parkville 3052, Australia
| | - A Ratheesh
- Orygen, Parkville 3052, Australia; The University of Melbourne, Centre for Youth Mental Health, Parkville 3052, Australia.
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Lahoz R, Corda S, Proudfoot C, Fonseca A, Cotton S, Jackson J, Studer R. Caregiver burden of patients with heart failure with a left-ventricular ejection fraction (LVEF) less than or equal to 60%: a cross-sectional survey in the EU. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background and purpose
The majority of patients with heart failure (HF) have difficulties in independently carrying out activities of daily living and hence, require support from caregivers (CGs). This study assessed the quality of life (QoL) of CGs of HF patients with sub-normal LVEF (≤60%).
Methods
A cross-sectional survey of HF patients and their CGs was conducted in France, Germany, Italy, Spain and the UK. Cardiologists and primary care physicians completed patient record forms (PRF) between June and November 2019. Caregivers of the same patients were invited to complete a caregiver self-completion survey, which included the Family Caregiver QoL Scale (FAMQOL) and EQ-5D. Patient demographics were derived from PRFs.
Results
361 CGs (73.1% female, mean age: 58.8 yrs) and HF patients (39.9% female, mean age: 71.2 yrs) were included. 58.2% of the CGs were spouses, 23.4% a child of the patient. On average, CGs devoted 20 hrs/week in the care of HF patients; this CG time increased from 12 to 26 hrs/week with NYHA class I to III/IV of the HF patient. Further, anxiety/stress was experienced overall by 29/31% of CGs which increased from 27/17% for NYHA I to 40/41% for NYHA III/IV of the HF patient (Table 1).
Conclusions
Caregivers of patients with HF and LVEF ≤60% spend a significant amount of time to provide daily support to HF patients. Patients with progressive disease were older, more polymorbid and had a higher disease duration. These factors likely contributed towards increased caregiver burden of HF patients with increased NYHA class.
Funding Acknowledgement
Type of funding source: Private company. Main funding source(s): Novartis Pharma AG
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Affiliation(s)
- R Lahoz
- Novartis Pharma AG, Basel, Switzerland
| | - S Corda
- Novartis Pharma AG, Basel, Switzerland
| | | | | | - S Cotton
- Adelphi Real World, Bollington, United Kingdom
| | - J Jackson
- Adelphi Real World, Bollington, United Kingdom
| | - R Studer
- Adelphi Real World, Bollington, United Kingdom
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Proudfoot C, Fonseca A, Lahoz R, Corda S, Cotton S, Jackson J, Studer R. Patients with heart failure and a LVEF less than 40% present an overall lower health related quality of life than those with LVEF between 40% and 60%: a multinational real-world survey in EU. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0974] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background and purpose
Heart Failure (HF) is associated with symptoms such as dyspnoea and fatigue which can impact patients' health related quality of life (HRQoL). This study aimed to characterize and assess the HRQoL of patients with HF and left-ventricular ejection fraction (LVEF) <40% versus those with ≥40%-60%.
Methods
A cross-sectional study of patients with HF was conducted in France, Germany, Italy, Spain and United Kingdom. Patient record forms (PRFs) were completed by 257 cardiologists and 158 general practitioners (GPs) for consecutively consulting patients. The same patients were invited to provide patient-reported outcomes including self-completion questionnaires, Minnesota Living with Heart Failure Questionnaire (MLHFQ) and EQ-5D-5L VAS.
Results
204 HF patients with LVEF <40% (mean age 67.7 years) and 600 patients with LVEF ≥40–60% (mean age 68.9 years) were included. Proportion of males was significantly higher in the lower LVEF group (73.5% vs. 61.2%, p=0.0017). Overall, the patients with lower LVEF more frequently presented with comorbidities than those with LVEF ≥40–60% (p<0.05, Figure 1). NYHA stage III/IV (35.8%/7.4% vs. 15.3%/0.8%) as well as self-reported HF symptoms were more frequently reported in the lower LVEF group (p<0.05, Figure 1). Similarly, patients with LVEF <40% reported statistically significantly worse HRQoL compared to those with LVEF ≥40–60% (Table 1).
Conclusions
The HRQoL of all HF patients with LVEF ≤60% appears impacted, while those with LVEF <40% had significantly worse HRQoL than those with LVEF ≥40–60%. These differences in HRQoL may not only be related to the LVEF but also to the overall characteristics of these patients. Addressing the HRQoL burden for patients should be a key aspect of HF management strategies for all HF patients.
Funding Acknowledgement
Type of funding source: Private company. Main funding source(s): Novartis Pharma AG
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Affiliation(s)
| | | | - R Lahoz
- Novartis Pharma AG, Basel, Switzerland
| | - S Corda
- Novartis Pharma AG, Basel, Switzerland
| | - S Cotton
- Adelphi Real World, Bollington, United Kingdom
| | - J Jackson
- Adelphi Real World, Bollington, United Kingdom
| | - R Studer
- Novartis Pharma AG, Basel, Switzerland
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Poitout-Belissent F, Culang D, Poulin D, Samadfan R, Cotton S, Bédard C. Monitoring Compound-Related Effects on Coagulability in Rats and Cynomolgus and Rhesus Monkeys by Thrombin Generation Kinetic Measurement. Int J Toxicol 2020; 39:207-217. [PMID: 32153221 DOI: 10.1177/1091581820907324] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Thrombin generation assay (TGA) is a sensitive method for the assessment of the global clotting potential of plasma. This kinetic assay can detect both hypocoagulable and hypercoagulable conditions: delayed or reduced thrombin generation leading to a prolonged clotting time, or induced thrombin activity, shifting the coagulation cascade toward thrombosis. The purpose of this study is to qualify the TGA in nonhuman primates (NHP) and rats for its use during nonclinical in vivo and in vitro studies. Blood was drawn from nonanesthetized animals, and platelet-poor plasma was obtained after double centrifugation; coefficients of variation were <10% for all derived parameters of thrombin generation assessed with 5 pM of tissue factor. Thrombin generation was evaluated in vitro in rat and NHP plasmas with ascending doses of unfractionated heparin (UFH), recombinant tissue factor, and anticoagulant compounds. Thrombin generation was decreased with UFH and anticoagulant compounds, but was increased in the presence of tissue factor, in a dose-dependent manner. In a rat model of inflammation, animals were administered a low dose of lipopolysaccharides. Thrombin generation measurements were decreased 3 hours post-LPS administration with a nadir at 24 hours, while thrombin-antithrombin complexes reached a peak at 8 hours, supporting an earlier production of thrombin. In conclusion, these data demonstrated that TGA can be performed in vitro for screening of compounds expected to have effects on coagulation cascade, and thrombin generation can be measured at interim time points during nonclinical in vivo studies in rats and NHP.
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Affiliation(s)
| | - D Culang
- Pathology and Microbiology Department, St.-Hyacinthe Veterinary School, University of Montreal, Canada
| | - D Poulin
- Charles River Laboratories, ULC, Senneville, Canada
| | - R Samadfan
- Charles River Laboratories, ULC, Senneville, Canada
| | - S Cotton
- Charles River Laboratories, ULC, Senneville, Canada
| | - C Bédard
- Pathology and Microbiology Department, St.-Hyacinthe Veterinary School, University of Montreal, Canada
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Booth J, Aucott L, Cotton S, Goodman C, Hagen S, Harari D, Lawrence M, Lowndes A, Macaulay L, MacLennan G, Mason H, McClurg D, Norrie J, Norton C, O’Dolan C, Skelton DA, Surr C, Treweek S. ELECtric Tibial nerve stimulation to Reduce Incontinence in Care homes: protocol for the ELECTRIC randomised trial. Trials 2019; 20:723. [PMID: 31843002 PMCID: PMC6915984 DOI: 10.1186/s13063-019-3723-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Accepted: 09/13/2019] [Indexed: 01/24/2023] Open
Abstract
BACKGROUND Urinary incontinence (UI) is highly prevalent in nursing and residential care homes (CHs) and profoundly impacts on residents' dignity and quality of life. CHs predominantly use absorbent pads to contain UI rather than actively treat the condition. Transcutaneous posterior tibial nerve stimulation (TPTNS) is a non-invasive, safe and low-cost intervention with demonstrated effectiveness for reducing UI in adults. However, the effectiveness of TPTNS to treat UI in older adults living in CHs is not known. The ELECTRIC trial aims to establish if a programme of TPTNS is a clinically effective treatment for UI in CH residents and investigate the associated costs and consequences. METHODS This is a pragmatic, multicentre, placebo-controlled, randomised parallel-group trial comparing the effectiveness of TPTNS (target n = 250) with sham stimulation (target n = 250) in reducing volume of UI in CH residents. CH residents (men and women) with self- or staff-reported UI of more than once per week are eligible to take part, including those with cognitive impairment. Outcomes will be measured at 6, 12 and 18 weeks post randomisation using the following measures: 24-h Pad Weight Tests, post void residual urine (bladder scans), Patient Perception of Bladder Condition, Minnesota Toileting Skills Questionnaire and Dementia Quality of Life. Economic evaluation based on a bespoke Resource Use Questionnaire will assess the costs of providing a programme of TPTNS. A concurrent process evaluation will investigate fidelity to the intervention and influencing factors, and qualitative interviews will explore the experiences of TPTNS from the perspective of CH residents, family members, CH staff and managers. DISCUSSION TPTNS is a non-invasive intervention that has demonstrated effectiveness in reducing UI in adults. The ELECTRIC trial will involve CH staff delivering TPTNS to residents and establish whether TPTNS is more effective than sham stimulation for reducing the volume of UI in CH residents. Should TPTNS be shown to be an effective and acceptable treatment for UI in older adults in CHs, it will provide a safe, low-cost and dignified alternative to the current standard approach of containment and medication. TRIAL REGISTRATION ClinicalTrials.gov, NCT03248362. Registered on 14 August 2017. ISRCTN, ISRCTN98415244. Registered on 25 April 2018. https://www.isrctn.com/.
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Affiliation(s)
- J. Booth
- School of Health and Life Sciences, Glasgow Caledonian University, Govan Mbeki Building, Glasgow, G4 0BA UK
| | - L. Aucott
- Centre for Healthcare Randomised Trials (CHaRT), University of Aberdeen, Aberdeen, UK
| | - S. Cotton
- Centre for Healthcare Randomised Trials (CHaRT), University of Aberdeen, Aberdeen, UK
| | - C. Goodman
- Centre for Research in Primary and Community Care, University of Hertfordshire, Hatfield, UK
| | - S. Hagen
- Nursing, Midwifery and Allied Health Professions Research Unit (NMAHP RU), Glasgow Caledonian University, Glasgow, UK
| | - D. Harari
- Guy’s and St Thomas’ NHS Foundation Trust, London, UK
| | - M. Lawrence
- School of Health and Life Sciences, Glasgow Caledonian University, Govan Mbeki Building, Glasgow, G4 0BA UK
| | - A. Lowndes
- Playlist for Life, Unit 1/14, Govanhill Workspace, Glasgow,, UK
| | - L. Macaulay
- School of Health and Life Sciences, Glasgow Caledonian University, Govan Mbeki Building, Glasgow, G4 0BA UK
| | - G. MacLennan
- Health Services Research Unit, University of Aberdeen, Aberdeen, UK
| | - H. Mason
- Yunus Centre for Social Business and Health, Glasgow Caledonian University, Glasgow, UK
| | - D. McClurg
- Nursing, Midwifery and Allied Health Professions Research Unit (NMAHP RU), Glasgow Caledonian University, Glasgow, UK
| | - J. Norrie
- Usher Institute, Edinburgh University, Edinburgh, UK
| | | | - C. O’Dolan
- School of Health and Life Sciences, Glasgow Caledonian University, Govan Mbeki Building, Glasgow, G4 0BA UK
| | - D. A. Skelton
- School of Health and Life Sciences, Glasgow Caledonian University, Govan Mbeki Building, Glasgow, G4 0BA UK
| | - C. Surr
- School of Health and Community Studies, Leeds Beckett University, Leeds, UK
| | - S. Treweek
- Centre for Healthcare Randomised Trials (CHaRT), University of Aberdeen, Aberdeen, UK
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Jalloul RJ, Simpson I, Lin AS, Cotton S, Elshatanoufy S. 1954 Effect of Enhanced Recovery After Surgery (ERAS) Implementation on Surgical Outcomes and Opioid Prescription Patterns in Patients Undergoing Minimally Invasive Hysterectomy: A Safety-Net Teaching Hospital Experience. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Perera S, Hetrick S, Cotton S, Parker A, Rickwood D, Davenport T, Hickie IB, Herrman H, McGorry P. Awareness of headspace youth mental health service centres across Australian communities between 2008 and 2015. J Ment Health 2019; 29:410-417. [DOI: 10.1080/09638237.2019.1630718] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- S. Perera
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - S. Hetrick
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
- Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - S. Cotton
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - A. Parker
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
- Institute for Health and Sport, Victoria University, Melbourne, Australia
| | - D. Rickwood
- Faculty of Health, University of Canberra, Canberra, Australia
- Headspace, National Youth Mental Health Foundation, Melbourne, Australia
| | - T. Davenport
- Brain and Mind Centre, University of Sydney, Australia
| | - I. B. Hickie
- Brain and Mind Centre, University of Sydney, Australia
| | - H. Herrman
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
| | - P. McGorry
- Orygen, the National Centre of Excellence in Youth Mental Health, Melbourne, Australia
- Centre for Youth Mental Health, University of Melbourne, Melbourne, Australia
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Cotton S, Chen H, Wallace C, Jalloul R. 02: A county hospital experience with determining route of hysterectomy: can we safely increase the minimally invasive hysterectomy rate? Am J Obstet Gynecol 2019. [DOI: 10.1016/j.ajog.2019.01.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Faul A, D’Ambrosio J, Yankeelov P, Cotton S, Furman C, Hall-Faul M, Gordon B, Wright R. HUMAN FLOURISHING AS AN OUTCOME OF INTEGRATED PRIMARY CARE AND COMMUNITY BASED MODELS OF CARE. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- A Faul
- Institute for Sustainable Health & Optimal Aging, Louisville, KY
| | - J D’Ambrosio
- Institute for Sustainable Health & Optimal Aging, University of Louisville
| | - P Yankeelov
- Institute for Sustainable Health & Optimal Aging, University of Louisville
| | - S Cotton
- Institute for Sustainable Health & Optimal Aging, University of Louisville
| | - C Furman
- Institute for Sustainable Health & Optimal Aging, University of Louisville
| | - M Hall-Faul
- KIPDA Area Agency on Aging and Independent Living
| | - B Gordon
- KIPDA Area Agency on Aging and Independent Living
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Munro A, Gillespie C, Cotton S, Busby-Earle C, Kavanagh K, Cuschieri K, Cubie H, Robertson C, Smart L, Pollock K, Moore C, Palmer T, Cruickshank ME. The impact of human papillomavirus type on colposcopy performance in women offered HPV immunisation in a catch-up vaccine programme: a two-centre observational study. BJOG 2017; 124:1394-1401. [PMID: 28102931 DOI: 10.1111/1471-0528.14563] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/31/2016] [Indexed: 12/01/2022]
Abstract
OBJECTIVE To determine whether human papillomavirus (HPV) immunisation has affected the prevalence of HPV genotypes and colposcopic features of cervical intraepithelial neoplasia (CIN) in young women referred for colposcopy. DESIGN A two-centre observational study including vaccinated and unvaccinated women. SETTING Colposcopy clinics serving two health regions in Scotland, UK. POPULATION A total of 361 women aged 20-25 years attending colposcopy following an abnormal cervical cytology result at routine cervical screening. METHODS Cervical samples were obtained from women for HPV DNA genotyping and mRNA E6/E7 expression of HPV 16, 18, 31, 33, and 45. Demographic data, cytology, and histology results and colposcopic features were recorded. Chi-square analysis was conducted to identify associations between vaccine status, HPV genotypes, and colposcopic features. MAIN OUTCOME MEASURES Colposcopic features, HPV genotypes, mRNA expression, and cervical histology. RESULTS The prevalence of HPV 16 was significantly lower in the vaccinated group (8.6%) compared with the unvaccinated group (46.7%) (P = 0.001). The number of cases of CIN2+ was significantly lower in women who had been vaccinated (P = 0.006). The HPV vaccine did not have a statistically significant effect on commonly recognised colposcopic features, but there was a slight reduction in the positive predictive value (PPV) of colposcopy for CIN2+, from 74% (unvaccinated) to 66.7% (vaccinated). CONCLUSIONS In this group of young women with abnormal cytology referred to colposcopy, HPV vaccination via a catch-up programme reduced the prevalence of CIN2+ and HPV 16 infection. The reduced PPV of colposcopy for the detection of CIN2+ in women who have been vaccinated is at the lower acceptable level of the UK national cervical screening programme guidelines. TWEETABLE ABSTRACT Reduction of hrHPV positivity and CIN in immunised women consistent with lower PPV of colposcopy for CIN2+.
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Affiliation(s)
- A Munro
- University of Aberdeen, Aberdeen, UK
| | | | - S Cotton
- University of Aberdeen, Aberdeen, UK
| | | | | | - K Cuschieri
- Scottish Human Papillomavirus Reference Laboratory, Edinburgh, UK
| | - H Cubie
- Scottish Human Papillomavirus Reference Laboratory, Edinburgh, UK
| | | | | | - K Pollock
- Health Protection Scotland, Glasgow, UK
| | - C Moore
- Scottish Human Papillomavirus Reference Laboratory, Edinburgh, UK
| | - T Palmer
- University of Edinburgh, Edinburgh, UK
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Yates N, Stanger S, Wilding R, Cotton S. Approaches to assessing and minimizing blood wastage in the hospital and blood supply chain. ACTA ACUST UNITED AC 2017. [DOI: 10.1111/voxs.12330] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- N. Yates
- Cranfield School of Management; Bedford UK
| | - S. Stanger
- Cranfield School of Management; Bedford UK
| | - R. Wilding
- Cranfield School of Management; Bedford UK
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Devereux G, Steele S, Griffiths K, Cotton S, Fraser-Pitt D, Devlin E, Chrystyn H, Norrie J, O'Neil D. 141 An open label investigation of the tolerability and pharmacokinetics of oral cysteamine in adults with cystic fibrosis. J Cyst Fibros 2015. [DOI: 10.1016/s1569-1993(15)30318-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Neal RD, Tharmanathan P, France B, Din NU, Cotton S, Fallon-Ferguson J, Hamilton W, Hendry A, Hendry M, Lewis R, Macleod U, Mitchell ED, Pickett M, Rai T, Shaw K, Stuart N, Tørring ML, Wilkinson C, Williams B, Williams N, Emery J. Is increased time to diagnosis and treatment in symptomatic cancer associated with poorer outcomes? Systematic review. Br J Cancer 2015; 112 Suppl 1:S92-107. [PMID: 25734382 PMCID: PMC4385982 DOI: 10.1038/bjc.2015.48] [Citation(s) in RCA: 614] [Impact Index Per Article: 68.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND It is unclear whether more timely cancer diagnosis brings favourable outcomes, with much of the previous evidence, in some cancers, being equivocal. We set out to determine whether there is an association between time to diagnosis, treatment and clinical outcomes, across all cancers for symptomatic presentations. METHODS Systematic review of the literature and narrative synthesis. RESULTS We included 177 articles reporting 209 studies. These studies varied in study design, the time intervals assessed and the outcomes reported. Study quality was variable, with a small number of higher-quality studies. Heterogeneity precluded definitive findings. The cancers with more reports of an association between shorter times to diagnosis and more favourable outcomes were breast, colorectal, head and neck, testicular and melanoma. CONCLUSIONS This is the first review encompassing many cancer types, and we have demonstrated those cancers in which more evidence of an association between shorter times to diagnosis and more favourable outcomes exists, and where it is lacking. We believe that it is reasonable to assume that efforts to expedite the diagnosis of symptomatic cancer are likely to have benefits for patients in terms of improved survival, earlier-stage diagnosis and improved quality of life, although these benefits vary between cancers.
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Affiliation(s)
- R D Neal
- North Wales Centre for Primary Care Research, Bangor University, Bangor LL13 7YP, UK
| | - P Tharmanathan
- Department of Health Sciences, University of York, York, YO10 5DD, UK
| | - B France
- North Wales Centre for Primary Care Research, Bangor University, Bangor LL13 7YP, UK
| | - N U Din
- North Wales Centre for Primary Care Research, Bangor University, Bangor LL13 7YP, UK
| | - S Cotton
- Betsi Cadwaladr University Health Board, Wrexham Maelor Hospital, Wrexham LL13 7TD, UK
| | - J Fallon-Ferguson
- Primary Care Collaborative Cancer Clinical Trials Group, School of Primary, Aboriginal, and Rural Healthcare, University of Western Australia, M706, 35 Stirling Highway, Crawley, Western Australia 6009, Australia
| | - W Hamilton
- University of Exeter Medical School, Exeter EX1 2LU, UK
| | - A Hendry
- North Wales Centre for Primary Care Research, Bangor University, Bangor LL13 7YP, UK
| | - M Hendry
- North Wales Centre for Primary Care Research, Bangor University, Bangor LL13 7YP, UK
| | - R Lewis
- Department of Health Sciences, University of York, York, YO10 5DD, UK
| | - U Macleod
- Centre for Health and Population studies, Hull York Medical School, University of Hull, Hull HU6 7RX, UK
| | - E D Mitchell
- Leeds Institute of Health Sciences, University of Leeds, Leeds LS2 9LJ, UK
| | - M Pickett
- Betsi Cadwaladr University Health Board, Wrexham Maelor Hospital, Wrexham LL13 7TD, UK
| | - T Rai
- North Wales Organisation for Randomised Trials in Health, Bangor University, Bangor LL57 2PZ, UK
| | - K Shaw
- Primary Care Collaborative Cancer Clinical Trials Group, School of Primary, Aboriginal, and Rural Healthcare, University of Western Australia, M706, 35 Stirling Highway, Crawley, Western Australia 6009, Australia
| | - N Stuart
- School of Medical Sciences, Bangor University, Bangor, LL57 2AS UK
| | - M L Tørring
- Research Unit for General Practice, Aarhus University, Bartholins Alle 2, Aarhus DK-8000, Denmark
| | - C Wilkinson
- North Wales Centre for Primary Care Research, Bangor University, Bangor LL13 7YP, UK
| | - B Williams
- Primary Care Collaborative Cancer Clinical Trials Group, School of Primary, Aboriginal, and Rural Healthcare, University of Western Australia, M706, 35 Stirling Highway, Crawley, Western Australia 6009, Australia
| | - N Williams
- North Wales Centre for Primary Care Research, Bangor University, Bangor LL13 7YP, UK
- North Wales Organisation for Randomised Trials in Health, Bangor University, Bangor LL57 2PZ, UK
| | - J Emery
- Primary Care Collaborative Cancer Clinical Trials Group, School of Primary, Aboriginal, and Rural Healthcare, University of Western Australia, M706, 35 Stirling Highway, Crawley, Western Australia 6009, Australia
- General Practice & Primary Care Academic Centre, University of Melbourne, 200 Berkeley Street, Melbourne, Victoria 3053, Australia
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Cotton AJ, Cotton S, Small J, Pomiankowski A. Male mate preference for female eyespan and fecundity in the stalk-eyed fly, Teleopsis dalmanni. Behav Ecol 2014. [DOI: 10.1093/beheco/aru192] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Cotton AJ, Földvári M, Cotton S, Pomiankowski A. Male eyespan size is associated with meiotic drive in wild stalk-eyed flies (Teleopsis dalmanni). Heredity (Edinb) 2014; 112:363-9. [PMID: 24398884 PMCID: PMC3966131 DOI: 10.1038/hdy.2013.131] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Revised: 10/15/2013] [Accepted: 10/24/2013] [Indexed: 11/30/2022] Open
Abstract
This study provides the first direct evidence from wild populations of stalk-eyed flies
to support the hypothesis that male eyespan is a signal of meiotic drive. Several
stalk-eyed fly species are known to exhibit X-linked meiotic drive. A recent quantitative
trait locus analysis in Teleopsis dalmanni found a potential link between
variation in male eyespan, a sexually selected ornamental trait, and the presence of
meiotic drive. This was based on laboratory populations subject to artificial selection
for male eyespan. In this study, we examined the association between microsatellite
markers and levels of sex ratio bias (meiotic drive) in 12 wild T. dalmanni
populations. We collected two data sets: (a) brood sex ratios of wild-caught males mated
to standard laboratory females and (b) variation in a range of phenotypic traits
associated with reproductive success of wild-caught males and females. In each case, we
typed individuals for eight X-linked microsatellite markers, including several that
previously were shown to be associated with male eyespan and meiotic drive. We found that
one microsatellite marker was very strongly associated with meiotic drive, whereas a
second showed a weaker association. We also found that, using both independent data sets,
meiotic drive was strongly associated with male eyespan, with smaller eyespan males being
associated with more female-biased broods. These results suggest that mate preference for
exaggerated male eyespan allows females to avoid mating with males carrying the meiotic
drive gene and is thus a potential mechanism for the maintenance and evolution of female
mate preference.
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Affiliation(s)
- A J Cotton
- 1] Department of Genetics, Evolution and Environment, University College London, London, UK [2] CoMPLEX, University College London, London, UK
| | - M Földvári
- 1] Department of Genetics, Evolution and Environment, University College London, London, UK [2] MTA-DE 'Lendület' Behavioural Ecology Research Group, Department of Evolutionary Zoology, University of Debrecen, 1, Egyetem tér, Debrecen, Hungary
| | - S Cotton
- Department of Genetics, Evolution and Environment, University College London, London, UK
| | - A Pomiankowski
- 1] Department of Genetics, Evolution and Environment, University College London, London, UK [2] CoMPLEX, University College London, London, UK
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Schimmelmann B, Conus P, Cotton S, Kupferschmid S, McGorry P, Lambert M. Prevalence and impact of cannabis use disorders in adolescents with early onset first episode psychosis. Eur Psychiatry 2012; 27:463-9. [DOI: 10.1016/j.eurpsy.2011.03.001] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2010] [Revised: 02/08/2011] [Accepted: 03/06/2011] [Indexed: 11/28/2022] Open
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Luberto C, Cotton S, Yi M, Tsevat J. P04.01. Complementary and alternative medicine use and health outcomes among urban adolescents with asthma. BMC Complement Altern Med 2012. [PMCID: PMC3373669 DOI: 10.1186/1472-6882-12-s1-p271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Abstract
During 2009/2010 loss of platelets within NHS Blood and Transplant (NHSBT) due to time expiry was 9.3%. Hospitals remain reluctant to hold stocks of platelets due to the poor shelf life at issue. The purpose of this study was to identify areas for time compression in the apheresis platelet supply chain to extend the shelf life available for hospitals and reduce wastage in NHSBT. This was done within the context of NHSBT reconfiguring their supply chain and moving towards a consolidated and centralised approach. Time based process mapping was applied to identify value and non-value adding time in two manufacturing models. A large amount of the non-value adding time in the apheresis platelet supply chain is due to transportation and waiting for the next process in the manufacturing process to take place. Time based process mapping provides an effective 'lens' for supply chain professionals to identify opportunities for improvement in the platelet supply chain.
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Affiliation(s)
- R Wilding
- Cranfield School of Management, Centre for Logistics and Supply Chain Management, Cranfield, Bedford, UK.
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Sharp L, Cotton S, Thornton A, Gray N, Whynes D, Smart L, Waugh N, Duncan I, Cruickshank M, Little J. Which women default from follow-up cervical cytology tests? A cohort study within the TOMBOLA trial. Cytopathology 2011; 23:150-60. [PMID: 21366734 DOI: 10.1111/j.1365-2303.2011.00848.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
OBJECTIVE To identify factors associated with default from follow-up cervical cytology tests. METHODS A cohort study was conducted involving 2166 women, aged 20-59, with recent low-grade cervical cytology taken within the NHS Cervical Screening Programmes in Scotland and England, and managed by 6-monthly cytology in primary care. For the first (6-month) and second (12-month) surveillance cytology tests separately, women were categorized as 'on-time attendees' (attended ≤6 months of test being due), 'late attendees' (attended greater than 6 months after test was due) or 'non-attendees' (failed to attend). Multivariate odds ratios (ORs) were computed for factors associated with late and non-attendance. RESULTS For the first surveillance test, risk of non-attendance was significantly higher in younger women, those without post-secondary education, and non-users of prescribed contraception. Factors significantly associated with late attendance for the first test were the same as for non-attendance, plus current smoking and having children. The most important predictor of non-attendance for the second surveillance test was late attendance for the first test (OR = 9.65; 95% CI, 6.60-16.62). Non-attendance for the second test was also significantly higher among women who were younger, smokers and had negative cytology on the first surveillance test. Late attendance for the second surveillance test was higher in women who were younger, smokers, had children and attended late for the first test. CONCLUSIONS Women at highest risk of default from follow-up cytology tend to be young, smoke, lack post-secondary education, and have defaulted from a previous surveillance appointment. Tackling default will require development of targeted strategies to encourage attendance and research to better understand the reasons underpinning default.
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Affiliation(s)
- L Sharp
- National Cancer Registry Ireland, Cork, Ireland.
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Schimmelmann B, Kupferschmid S, Conus P, Cotton S, McGorry P, Lambert M. Cannabis use disorders and age at onset of psychosis in 606 patients with first episode psychosis. Eur Psychiatry 2011. [DOI: 10.1016/s0924-9338(11)73204-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
Abstract
BackgroundAge at onset of psychosis (AAO) may be younger in patients with cannabis use disorders (CUD) compared to those without CUD (NCUD). Most previous studies did not control for potential confounders, did not report effect sizes and included mostly adult patients from non-representative samples.MethodsControlling for relevant confounders, differences in AAO between patients with and without lifetime CUD were analysed in a large epidemiologically based cohort of 606 first-episode psychosis (FEP) patients (age 14 to 29 years) admitted within three years to the Melbourne Early Psychosis Prevention and Intervention Centre. Data were collected from medical files using a standardized scale.ResultsOverall, AAO was not significantly different in CUD (n = 449; 74.1%) compared to NCUD, neither univariate nor when controlling for gender and premorbid functioning. However, AAO was younger in those with early CUD (starting before age 14) compared to NCUD (F(1) = 11.3; p = 0.001; partial η2 = 0.042). When considering the subgroups of early versus late onset psychosis, AAO was even later in early onset psychosis patients with CUD compared to those with NCUD (F(1) = 8.4; p = 0.004; partial η2 = 0.072). These findings were consistent for patients with non-affective psychoses, in those with CUD without other substance use disorders and in those with CUD explicitly starting in the pre-psychotic phase. Notably, 89.1% started cannabis before the onset of psychotic symptoms.ConclusionsCUD starting before age 14 was associated with an earlier AAO at a small effect size, but only in adult onset FEP patients.
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Schimmelmann B, Cotton S, Conus P, Kupferschmid S, McGorry P, Lambert M. P01-345-Prevalence and impact of cannabis use disorders in adolescents with early onset first episode psychosis. Eur Psychiatry 2011. [DOI: 10.1016/s0924-9338(11)72056-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
ObjectivePrevious studies on the impact of cannabis use disorders (CU) on outcome in psychosis were mostly based on non-representative samples, have often not controlled for confounders and rarely focused on adolescents. Thus, the aims of the present study were to assess;(i) prevalence of CU;(ii) pre-treatment and baseline differences between CU and those without CU (NCU); and(iii) the impact of baseline and course of CU on 18-month outcomes in a representative cohort of adolescents with early onset first episode psychosis (EOP).MethodThe sample comprised 99 adolescents (age 14 to 18) with EOP (onset age 14 to 17), admitted to the Early Psychosis Prevention and Intervention Centre in Australia. Data were collected from medical files using a standardized questionnaire.ResultsPrevalence of lifetime CU was 65.7%, baseline CU 53.5%, and persistent CU 26.3%. Baseline CU compared to NCU was associated with higher illness-severity, lower functioning, less insight, lower premorbid functioning and longer duration of untreated psychosis. Compared to both NCU and those who decreased or stopped CU during treatment, only persistent CU was linked to worse outcomes and more service disengagement. Effect sizes were medium controlling for relevant confounders. Medication non-adherence did not explain the link between persistent CU and worse outcome.ConclusionsThe prevalence of CU in adolescents with EOP is high, while only persistent CU use was associated with worse outcome with medium effect sizes. Specific needs of adolescent patients with respect to cannabis interventions within integrated care settings should be addressed in future studies.
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Devine DV, Sher GD, Reesink HW, Panzer S, Hetzel PAS, Wong JK, Horvath M, Leitner GC, Schennach H, Nussbaumer W, Genoe K, Cioffi JM, Givisiez FN, Rogerson M, Howe D, Delage G, Sarappa C, Fu Y, Sarlija D, Vuk T, Strauss Patko M, Balija M, Jukić I, Ali A, Auvinen MK, Jaakonsalo E, Cazenave JP, Waller C, Kientz D, David B, Walther-Wenke G, Heiden M, Lin CK, Tsoi WC, Lee CK, Barotine-Toth K, Sawant RB, Murphy W, Quirke B, Bowler P, Shinar E, Yahalom V, Aprili G, Piccoli P, Gandini G, Tadokaro K, Nadarajan VS, de Kort W, Jansen N, Flanagan P, Forsberg PO, Hervig T, Letowska M, Lachert E, Dudziak K, Antoniewicz-Papis J, de Olim G, Nascimento F, Hindawi S, Teo D, Reddy R, Scholtz J, Swanevelder R, Rovira LP, Sauleda S, Carasa MAV, Vaquero MP, Ania MA, Gulliksson H, Holdsworth S, Cotton S, Howell C, Baldwin C, Cusick RM, Geele GA, Paden C, McEvoy P, Gottschall JL, McLaughlin LS, Benjamin RJ, Eder A, Draper NL, AuBuchon JP, León de González G. Inventory management. Vox Sang 2010; 98:e295-363. [PMID: 20432515 DOI: 10.1111/j.1423-0410.2009.01252.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
A critical aspect of blood transfusion is the timely provision of high quality blood products. This task remains a significant challenge for many blood services and blood systems reflecting the difficulty of balancing the recruitment of sufficient donors, the optimal utilization of the donor's gift, the increasing safety related restrictions on blood donation, a growing menu of specialized blood products and an ever-growing imperative to increase the efficiency of blood product provision from a cost perspective. As our industry now faces questions about our standard practices including whether or not the age of blood has a negative impact on recipients, it is timely to take a look at our collective inventory management practices. This International Forum represents an effort to get a snap shot of inventory management practices around the world, and to understand the range of different products provided for patients. In addition to sharing current inventory management practices, this Forum is intended to foster an exchange of ideas around where we see our field moving with respect to various issues including specialty products, new technologies, and reducing recipient risk from blood transfusion products.
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Cotton S, Sharp L, Little J, Cruickshank M, Seth R, Smart L, Duncan I, Harrild K, Neal K, Waugh N. The role of human papillomavirus testing in the management of women with low-grade abnormalities: multicentre randomised controlled trial. BJOG 2010; 117:645-59. [PMID: 20374607 DOI: 10.1111/j.1471-0528.2010.02519.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To assess the value of a single human papillomavirus (HPV) test in making decisions on management of women with cervical cytology showing borderline nuclear abnormality (BNA) or mild dyskaryosis. In particular, to determine whether information on high-risk (hr) HPV status would be valuable in the choice between (1) cytological surveillance versus immediate referral to colposcopy, and (2) at colposcopy, between biopsy and recall versus immediate large loop excision of the transformation zone (LLETZ). DESIGN Multicentre individually randomised controlled trial, nested within the NHS Cervical Screening Programmes, investigating the value of HPV testing by testing for interactions between HPV status and (1) cytological surveillance versus colposcopy, and (2) biopsy and recall versus immediate LLETZ. Setting Grampian, Tayside and Nottingham. Population Women (n = 4439), aged 20-59 years, with a cytology test showing borderline nuclear abnormalities or mild dyskaryosis during October 1999 to October 2002. METHODS High-risk HPV status was determined at recruitment using the polymerase chain reaction assay with the GP5+/6+ general primer system. The results of this HPV testing were not disclosed to either the participating women or to those involved in their management. Women were randomised to either (1) 6-monthly cytological screening in primary care or (2) referral for colposcopy. Human papillomavirus status was used to stratify both randomisations. All women were followed for 3 years, concluding with an invitation to an exit appointment at which colposcopic examination was undertaken. In addition, in women who were randomised to initial colposcopy and underwent colposcopy, the association between hrHPV status and presence of cervical intraepithelial neoplasia (CIN) grade 2 or more severe disease (henceforth CIN2 or worse) was examined. MAIN OUTCOME MEASURES Sensitivity, specificity, positive and negative predictive values of the HPV test for predicting CIN2 or worse and the implications for the choice of management between cytological surveillance and immediate referral for colposcopy. RESULTS There were no significant interactions between management and HPV status. Hence, in women with mild dyskaryosis or BNA who are HPV positive, there is no advantage of (1) immediate colposcopy over cytological surveillance (P = 0.76) or (2) immediate LLETZ over biopsy and recall (P = 0.27). The sensitivity of HPV testing for detection of CIN2 or worse was 75.2% (95% CI 68.8-81.0%) among women with mild dyskaryosis and 69.9% (95% CI 61.7-77.3%) among those with BNA. Specificity was higher in those with BNA (71.3%; 95% CI 68.5-74.1%) than in those with mild dyskaryosis (46.9%; 95% CI 42.2-51.6%). Sensitivity decreased with increasing age whereas specificity increased. The negative predictive value was high, particularly among women with BNA (94.5%; 95% CI 92.9-96.0%). Across all ages, 22% of women who had CIN2 or worse were HPV negative. Conversely, 40% of those who were HPV positive did not have CIN. HPV was a much more reliable predictor in women aged over 40 years. CONCLUSIONS We conclude that in younger women with low-grade cytological abnormalities, a single HPV test would not be useful in determining who should be referred for colposcopy or the most effective management at colposcopy. In women over 40, a negative HPV test could be used to rule out further investigation.
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Affiliation(s)
- S Cotton
- Department of Public Health, University of Aberdeen, Aberdeen, UK
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Conus P, Cotton S, Benno S, Michael B, Rothanty D, McGorry P, Lambert M. PW01-07 - Correlates of past sexual and physical trauma in 118 bipolar I patients with a first episode of psychotic mania. Eur Psychiatry 2010. [DOI: 10.1016/s0924-9338(10)71409-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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Conus P, Ward J, Cotton S, Yung A, Berk M, McGorry P. S05-04 - Conceptual aspects and recent data on the prodrome to first episode mania. Eur Psychiatry 2010. [DOI: 10.1016/s0924-9338(10)70107-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Cotton S, Smart L. O-1 Results from TOMBOLA (trial of management of borderline and other low-grade abnormal smears). Cytopathology 2007. [DOI: 10.1111/j.1365-2303.2007.00500_1.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Cotton S, Hearnshaw K, Qureshi H, Prangnell D, Bailey C. P46 Sharing Information Via a Regional Web Site. Transfus Med 2006. [DOI: 10.1111/j.1365-3148.2006.00694_46.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Abstract
BACKGROUND Spectrophotometric intracutaneous analysis (SIAscopy) is a light-based imaging system capable of producing rapid images of melanin, blood and collagen of the skin. Although the SIAscope has been investigated for melanoma diagnosis, no formal study has been conducted to determine its use in the diagnosis of nonmelanoma skin cancer (NMSC). OBJECTIVES A prospective study was conducted to investigate the potential for the SIAscope to diagnose NMSC. METHODS In total, 302 consecutive patients were recruited into the study, 363 lesions being scanned. Logistic regression analysis was used to construct a predictive model for NMSC diagnosis and receiver-operator characteristic curves were used to assess overall accuracy of the model. RESULTS A sensitivity of 98.0%, specificity of 95.7% and overall accuracy of 98.2% was found for NMSC diagnosis by the SIAscope model. CONCLUSIONS Results suggest that the SIAscope may be a useful adjunct in the diagnosis of NMSC.
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Affiliation(s)
- H Tehrani
- Department of Plastic Surgery, Norfolk and Norwich University Hospital, Norwich, UK.
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Abstract
Stalk-eyed flies are exemplars of sexual selection leading to the evolution of exaggerated male ornaments (eyespan). In Sphyracephala beccarri, there is no evidence for female mate choice for exaggerated male eyespan and only minor sex differences in eyespan. We used S. beccarri to test whether heightened condition dependence only evolves when male eyespan becomes sexually exaggerated. Male eyespan showed heightened condition dependence under food stress compared with a control trait (wing length). However, female eyespan displayed a similar pattern and there was no sex difference in the degree of increased eyespan sensitivity. The finding that eyespan is a sensitive indicator of food stress, even in an unexaggerated state, suggests that this may have acted as a pre-adaptation to the role of eyespan in sexual signalling in other Diopsid species. These results are consistent with handicap theory and Fisher's view of how sexual selection is initiated.
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Affiliation(s)
- S Cotton
- The Galton Laboratory, Department of Biology, University College London, London, UK
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Ramsey D, Cotton S, Lawrence E, Semple M, Worth P, Petrie A, Stone T, Darlington L. Clotting Factors in Patients with Acute and Chronic Gout. J of Medical Sciences 2004. [DOI: 10.3923/jms.2005.47.51] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Abstract
STUDY OBJECTIVE Oral contraceptive pills (OCs) are a commonly prescribed method of birth control for sexually experienced adolescents. The purpose of the current study was to describe anticipated parental involvement and adolescent compliance with pill taking, and to describe experiences with a 20-mcg OC regarding satisfaction and side effects after six cycles. DESIGN Anticipated parental involvement and anticipated compliance, and experiences with an OC, were assessed at baseline, and after the first and sixth cycles during a clinical trial of oral contraceptives, which required parental consent. SETTING Three adolescent medicine clinics in New York, NY; Cincinnati, OH; and San Juan, Puerto Rico. PARTICIPANTS The sample consisted of 43 female adolescents with a mean age of 17 years. RESULTS The majority of adolescents living with a parent anticipated parental involvement, and few adolescents anticipated difficulties with consistent pill taking. For two side effects (weight and mood changes), more than 30% of the adolescents anticipated the occurrence or worsening of side effects. However, few adolescents actually experienced increases in any of the nine side effects assessed. Ninety-seven percent of adolescents in this trial reported being satisfied with a 20-mcg OC. CONCLUSIONS Health care providers can assess adolescents' anticipated difficulties with compliance with daily pill taking, and desire for help from their parents. This information can be incorporated into counseling to promote consistent and correct use.
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Affiliation(s)
- S L Rosenthal
- Department of Pediatrics, University of Cincinnati College of Medicine, OH, USA.
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Abstract
BACKGROUND Spectrophotometric intracutaneous analysis (SIA) is a new technique for imaging pigmented skin lesions and for diagnosing melanoma. The SIAscope produces eight narrow-band spectrally filtered images of the skin over an area of 24 x 24 mm with radiation ranging from 400 to 1000 nm. OBJECTIVES To present the early results of a clinical trial with SIA. METHODS Spectrophotometric inputs from the skin were analysed using complex algorithms to return high-resolution information regarding total melanin content of the epidermis and papillary dermis, collagen and haemoglobin content as well as the presence of melanin in the papillary dermis. RESULTS Simple, highly reproducible and reliable features were identified, e.g. the presence of dermal melanin, collagen holes and 'erythematous blush' with blood displacement. These simple features were found to be highly specific (80.1%) and sensitive (82.7%) for melanoma in a dataset of 348 pigmented lesions (52 melanomas) and compared very favourably with dermatoscopy when analysed using receiver-operator characteristic curves. CONCLUSIONS This first clinical trial with SIAscopy has yielded very promising results and delivers new, useful information to the clinician diagnosing pigmented skin lesions.
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Affiliation(s)
- M Moncrieff
- Department of Plastic and Reconstructive Surgery, Addenbrooke's Hospital, Box 186, Hills Road, Cambridge CB2 2QQ, UK.
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Abstract
BACKGROUND Early initiation of sexual intercourse is associated with increased risk for acquiring sexually transmitted diseases. GOAL To examine variables related to sexual initiation and developmental changes in the reasons why adolescent girls have sexual intercourse. STUDY DESIGN A longitudinal study of girls recruited from an adolescent medicine clinic was performed. RESULTS Logistic regression showed that girls who described their families as being expressive, having a moral-religious emphasis, providing supervision, and having greater maternal education, and who experienced menarche at an older age were older at sexual initiation. On the basis of contingency analyses, younger girls were less likely to report attraction or love, and more likely to report peers having sex as a reason for sexual intercourse at initiation. A generalized estimating equation analysis indicated that girls at younger ages are more likely to report curiosity, a grown-up feeling, partner pressure, and friends having sexual intercourse as reasons for intercourse. Girls at older ages are more likely to report a feeling of being in love, physical attraction, too excited to stop, drunk or high partner, and feeling romantic as reasons for having sexual intercourse. CONCLUSIONS Prevention programs should include a focus on familial characteristics and susceptibility to peer norms. They should be conducted with sensitivity to the developmental changes in intimate relationships that occur during adolescence.
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Affiliation(s)
- S L Rosenthal
- Divisions of Psychology, Children's Hospital Medical Center, Cincinnati, Ohio, USA.
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Affiliation(s)
- S Cotton
- Faculty of Health Sciences, La Trobe University, Bundoora, Victoria, Australia.
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Campbell D, Cotton S, Lloyd M, Khatib H, Grieshaber H. The state we're in. Nurs Times 2001; 97:26-7. [PMID: 11957208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
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Aviezer D, Cotton S, David M, Segev A, Khaselev N, Galili N, Gross Z, Yayon A. Porphyrin analogues as novel antagonists of fibroblast growth factor and vascular endothelial growth factor receptor binding that inhibit endothelial cell proliferation, tumor progression, and metastasis. Cancer Res 2000; 60:2973-80. [PMID: 10850445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
Fibroblast growth factors (FGFs) and vascular endothelial growth factor (VEGF) play a pivotal role in the multistep pathway of tumor progression, metastasis, and angiogenesis. We have identified a porphyrin analogue, 5,10,15,20-tetrakis(methyl-4-pyridyl)-21H,23H-porphine-tetra -p-tosylate salt (TMPP), as a potent inhibitor of FGF2 and VEGF receptor binding and activation. TMPP demonstrated potent inhibition of binding of soluble FGF receptor 1 (FGFR1) to FGF2 immobilized on heparin at submicromolar concentrations. TMPP inhibits binding of radiolabeled FGF2 to FGFR in a cell-free system as well as to cells genetically engineered to express FGFR1. Furthermore, TMPP also inhibits the binding of VEGF to its tyrosine kinase receptor in a dose-dependent manner. In an in vitro angiogenic assay measuring the extent of endothelial cell growth, tube formation, and sprouting, TMPP dramatically reduced the extent of the FGF2-induced endothelial cell outgrowth and differentiation. In a Lewis lung carcinoma model, mice receiving TMPP showed a marked inhibition of both primary tumor progression and lung metastases development, with nearly total inhibition of the metastatic phenotype upon alternate daily injections of TMPP at 25 microg/g of body mass. Finally, novel meso-pyridylium-substituted, nonsymmetric porphyrins, as well as a novel corrole-based derivative, with >50-fold increase in activity in vitro, had a significantly improved efficacy in blocking tumor progression and metastasis in vivo.
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Affiliation(s)
- D Aviezer
- Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel
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Abstract
The present authors describe sleep problems, including sleep apnoea and excessive daytime sleepiness (EDS), in subjects with Prader-Willi syndrome (PWS). The present paper reports a questionnaire study regarding sleep and behaviour in a group of 29 subjects with PWS, compared with an age- and gender-matched control group. Those with PWS suffered from sleep problems more frequently than the control subjects. Problems included EDS, snoring and early waking. Sleep problems in PWS were not associated with body mass index or weight. Excessive daytime sleepiness was a distinctive feature of the group with PWS, and behavioural disturbance in PWS children and adolescents was associated with EDS. Excessive daytime sleepiness seems to be characteristic of PWS, and may be related to problems with the sleep-wake cycle and hypothalamic dysfunction.
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Affiliation(s)
- A L Richdale
- Department of Psychology and Intellectual Disability Studies, RMIT University, Bundoora, Victoria, Australia.
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McCredie M, Little J, Cotton S, Mueller B, Peris-Bonet R, Choi NW, Cordier S, Filippini G, Holly EA, Modan B, Arslan A, Preston-Martin S. SEARCH international case-control study of childhood brain tumours: role of index pregnancy and birth, and mother's reproductive history. Paediatr Perinat Epidemiol 1999; 13:325-41. [PMID: 10440052 DOI: 10.1046/j.1365-3016.1999.00195.x] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
A series of co-ordinated population-based case-control studies of childhood brain tumours (CBT) was undertaken under the auspices of the Surveillance of Environmental Aspects Related to Cancer in Humans (SEARCH) programme of the International Agency for Research on Cancer (IARC) to evaluate, inter alia, the risk in relation to characteristics of the index pregnancy and birth, and maternal reproductive history. Subjects comprised 1218 cases aged 0-19 years and 2223 controls. Risk estimates were calculated by unconditional logistic regression, adjusted for age, sex, centre and mother's years of schooling, for all types of CBT combined as well as for four groups defined by histopathology (astrologlial tumours, primitive neuroectodermal tumours of the brain, 'other glial' tumours and 'other histological types') and for five age groups (0-1, 0-4, 5-9, 10-14, 15-19 years). Use of anaesthetic 'gas' was associated with an increased risk of CBT (OR = 1.5, 95% CI [1.1, 2.0]), apparent in children aged 0-4 years (OR = 2.4, 95% CI [1.4, 4.1]) and for astroglial tumours (OR = 1.6, 95% CI [1.1, 2.2]) with non-significantly increased relative risks for each of the other histological groups. However, not all centre-specific relative risks were elevated. No other aspect of the index pregnancy, delivery and early neonatal period or of the mother's previous reproductive history was associated with risk for CBT.
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Affiliation(s)
- M McCredie
- Cancer Epidemiology Research Unit, New South Wales Cancer Council, Sydney, Australia.
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Affiliation(s)
- M C Linder
- Department of Chemistry and Biochemistry, California State University, Fullerton 92834-6866, USA
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Newman C, Smith S, Cotton S. Accidental child poisoning. Child resistant packaging should be the legal requirement. BMJ 1998; 316:1461. [PMID: 9616016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Abstract
In adult humans, the net absorption of dietary copper is approximately 1 mg/d. Dietary copper joins some 4-5 mg of endogenous copper flowing into the gastrointestinal tract through various digestive juices. Most of this copper returns to the circulation and to the tissues (including liver) that formed them. Much lower amounts of copper flow into and out of other major parts of the body (including heart, skeletal muscle, and brain). Newly absorbed copper is transported to body tissues in two phases, borne primarily by plasma protein carriers (albumin, transcuprein, and ceruloplasmin). In the first phase, copper goes from the intestine to the liver and kidney; in the second phase, copper usually goes from the liver (and perhaps also the kidney) to other organs. Ceruloplasmin plays a role in this second phase. Alternatively, liver copper can also exit via the bile, and in a form that is less easily reabsorbed. Copper is also present in and transported by other body fluids, including those bathing the brain and central nervous system and surrounding the fetus in the amniotic sac. Ceruloplasmin is present in these fluids and may also be involved in copper transport there. The concentrations of copper and ceruloplasmin in milk vary with lactational stage. Parallel changes occur in ceruloplasmin messenger RNA expression in the mammary gland (as determined in pigs). Copper in milk ceruloplasmin appears to be particularly available for absorption, at least in rats.
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Affiliation(s)
- M C Linder
- Department of Chemistry and Biochemistry, and the Institute for Molecular Biology and Nutrition, California State University, Fullerton 92834-6866, USA.
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Abstract
Colorectal adenomatous polyps are thought to be precursors of colorectal cancer. This article reviews the evidence for the adenoma-carcinoma sequence and possible interventions in regard to the prevention of colorectal cancer. Although there is no direct evidence to support the adenoma-carcinoma sequence, there is considerable indirect evidence from a range of epidemiological, histopathological, and molecular genetic studies. Sigmoidoscopy and fecal occult blood testing may offer the potential for secondary prevention, but screening based on either of these methods in the general population has not yet been shown conclusively to be effective and efficient. Although the importance of dietary factors in the etiology of colorectal lesions suggests that there may be potential for primary prevention through dietary modification or nutrient supplementation, few trials have been completed to date. Although observational studies suggest that the incidence of colorectal cancer may be reduced by as much as 50% by the use of aspirin or other nonsteroidal antiinflammatory drugs (NSAIDs), further research is needed to determine the effects of individual NSAIDs and the appropriate prophylactic dose and to develop new NSAIDs with reduced gastrointestinal side-effects. Other strategies for primary prevention could focus on interventions to increase physical activity levels, to encourage smoking cessation, and to moderate alcohol consumption. Potential areas for further research are proposed.
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Affiliation(s)
- S Cotton
- Department of Medicine and Therapeutics, University of Aberdeen, Foresterhill, Scotland
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Cotton S. The Speech and Language Therapy Research Unit at Frenchay Hospital, Bristol. Int J Lang Commun Disord 1998; 33 Suppl:6-9. [PMID: 10343654 DOI: 10.3109/13682829809179385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Affiliation(s)
- S Cotton
- Speech and Language Therapy Research Unit, Frenchay Hospital, Bristol
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Abstract
In the last few years there have been considerable changes in the National Health Service (NHS) in the UK. Arguably the most significant of these has been the introduction of competition. Central to this development has been the introduction of general practice (GP) fundholding, whereby practices purchase health care for their patients directly from competing suppliers. Those practices which have become fundholders have faced considerable challenges in developing their purchasing function, given the complexities of contracting within the context of the NHS internal market. Although one of the original aims of GP fundholding was to facilitate locally responsive purchasing, such have been the complexities of contracting that many fundholding practices have attempted to reduce the managerial demands of purchasing through membership of purchasing consortia. Based on an in-depth study of GP fundholders across Scotland, this paper explores the development of consortium-based purchasing. Specifically, this paper seeks to address three issues central to the evolution of such consortium-based purchasing. Firstly, the patterns of organizational structure and the operational dynamics of such consortia. Secondly, the impact of such consortia on the process of fundholder purchasing. Thirdly, the managerial implications of purchasing through such consortia for the participating practices. In addressing these issues, it will examine whether such patterns of purchaser development have impacted on the evolution of locally responsive purchasing.
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Abstract
In a community-wide screening program conducted in Jacksonville, Florida, 564 participants received free screening for prostate cancer. Frequency of positive results of prostate-specific antigen measurement and digital rectal examination was comparable to that found in similar programs in other communities. The estimated cost for each participant was $231, and the cost to discover each cancer was $7,240. If one also includes initial therapy in cost estimates, then the cost per participant was $520, and the cost to find and treat each patient was $16,300. The value of screening for prostate cancer must be judged by treatment outcome and underlying costs.
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Affiliation(s)
- N Abramson
- Division of Hematology-Oncology, Baptist Regional Cancer Institute, Baptist Medical Center, Jacksonville, FL 32207
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Cotton S. [Contraceptive methods]. Soins Gynecol Obstet Pueric Pediatr 1993:12-4. [PMID: 8278883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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