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Batheja V, Osman M, Wynne M, Nemirovsky D, Morcos G, Riess J, Shin B, Whalen M, Haji-Momenian S. Optimal size threshold for PIRADSv2 category 5 upgrade and its positive predictive value: is it predictive of "very high" likelihood of clinically-significant cancer? Clin Radiol 2024; 79:e94-e101. [PMID: 37945438 DOI: 10.1016/j.crad.2023.10.008] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 08/21/2023] [Accepted: 10/05/2023] [Indexed: 11/12/2023]
Abstract
AIM To identify the optimal size metric and threshold for Prostate Imaging Reporting and Data System (PIRADS) 5 upgrade, calculate its positive predictive value (PPV) for clinically-significant prostate cancer (csPCA), and determine if it is indicative of a "very high" likelihood of csPCA. MATERIALS AND METHODS One hundred and forty-three PIRADS 4 or 5 lesions were evaluated. Lesion diameters were used to calculate lesion volume (LV). Pearson correlation between maximum lesion diameter (MLD) and LV was calculated. Area under the curve (AUC) for discriminating csPCA (Gleason grade ≥ 3 + 4) was calculated using MLD and LV. Optimal size thresholds (using Youden index) and highly predictive size thresholds were identified for the whole prostate (WP), peripheral zone (PZ), and transitional zone (TZ). RESULTS There was high correlation between MLD and LV (r=0.77-0.81), with comparable AUCs for MLD and LV in the identification of csPCA in the WP (0.73, 0.72), PZ (0.73, 0.73), and TZ (0.79, 0.75). Optimal MLD thresholds were 1.4, 1.4, and 1.6 cm in the WP, PZ, and TZ respectively, with PPVs of 76%, 81%, and 69%, respectively. An MLD threshold of 2.7 cm would be needed in the WP to achieve a PPV approaching 90%, with sensitivity decreasing to 10%. CONCLUSIONS There is high correlation between MLD and LV with comparable discrimination of csPCA using each. PIRADSv2's 1.5 cm MLD threshold is near the optimal threshold for PIRADS 5 upgrade but has moderate PPV. A much higher threshold would be needed to increase its PPV, with significant sacrifice in sensitivity.
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Affiliation(s)
- V Batheja
- George Washington University School of Medicine, Washington, DC, USA
| | - M Osman
- George Washington University School of Medicine, Washington, DC, USA
| | - M Wynne
- George Washington University School of Medicine, Washington, DC, USA
| | - D Nemirovsky
- George Washington University School of Medicine, Washington, DC, USA
| | - G Morcos
- George Washington University School of Medicine, Washington, DC, USA
| | - J Riess
- Department of Radiology, George Washington Medical Faculty Associates, Washington, DC, USA
| | - B Shin
- Department of Radiology, George Washington Medical Faculty Associates, Washington, DC, USA
| | - M Whalen
- Department of Urology, George Washington Medical Faculty Associates, Washington, DC, USA
| | - S Haji-Momenian
- Department of Radiology, George Washington Medical Faculty Associates, Washington, DC, USA.
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Ludwiczak A, Stephens TJ, Prowle J, Pearse R, Osman M. Supporting effective shared decision-making in surgical context: Why framing of choices matters for high-risk patients and clinicians. Colorectal Dis 2024; 26:110-119. [PMID: 38009965 DOI: 10.1111/codi.16805] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/25/2023] [Accepted: 09/17/2023] [Indexed: 11/29/2023]
Abstract
AIM In the context of high-risk surgery, shared decision-making (SDM) is important. However, the effectiveness of SDM can be hindered by misalignment between patients and clinicians in their expectations of postoperative outcomes. This study investigated the extent and the effects of this misalignment, as well as its amenability to interventions that encourage perspective-taking. METHOD Lay participants with a Charlson Comorbidity Index of ≥4 (representing patients) and surgeons and anaesthetists (representing doctors) were recruited. During an online experiment, subjects in both groups forecast their expectations regarding short-term (0, 1 and 3 months after treatment) and long-term (6, 9 and 12 months after treatment) outcomes of different treatment options for one of three hypothetical clinical scenarios - ischaemic heart disease, colorectal cancer or osteoarthritis of the hip - and then chose between surgical or non-surgical treatment. Subjects in both groups were asked to consider the scenarios from their own perspective (Estimation task), and then to adopt the perspective of subjects in the other study group (Perspective task). The decisions of all participants (surgery vs. non-surgical alternative) were analysed using binomial generalized linear mixed models. RESULTS In total, 55 lay participants and 54 doctors completed the online experiment. Systematic misalignment in expectations between high-risk patients and doctors was observed, with patients expecting better surgical outcomes than clinicians. Patients forecast a significantly higher likelihood of engaging in normal activities in the long term (β = -1.09, standard error [SE] = 0.20, t = -5.38, p < 0.001), a lower likelihood of experiencing complications in the long term (β = 0.92, SE = 0.21, t = 4.45, p < 0.001) and a lower likelihood of experiencing depression in both the short term and the long term (β = 1.01, SE = 0.19, t = 5.38, p < 0.001), than did doctors. Compared with doctors, patients forecast higher estimates of experiencing complications in the short term when a non-surgical alternative was selected (β = -0.91, SE = 0.26, t = -3.50, p = 0.003). Despite this misalignment, in both groups surgical treatment was strongly preferred (estimation task: 88.7% of doctors and 80% of patients; perspective task: 82.2% of doctors and 90.1% of patients). CONCLUSION When high-risk surgery is discussed, a non-surgical option may be viewed as 'doing nothing', hence reducing the sense of agency and control. This biases the decision-making process, regardless of the expectations that doctors and patients might have about the outcomes of surgery. Therefore, to improve SDM and to increase the agency and control of patients regarding decisions about their care, we advocate framing the non-surgical treatment options in a way that emphasizes action, agency and change.
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Affiliation(s)
- Agata Ludwiczak
- Biological and Experimental Psychology, School of Biological and Chemical Sciences, Queen Mary University of London, London, UK
- Psychology and Counselling, School of Human Sciences, University of Greenwich, Old Royal Naval College, London, UK
| | - Timothy J Stephens
- Barts & The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - John Prowle
- Barts & The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Rupert Pearse
- Barts & The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Magda Osman
- Biological and Experimental Psychology, School of Biological and Chemical Sciences, Queen Mary University of London, London, UK
- Centre for Science and Policy, University of Cambridge, Cambridge, UK
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Adams Z, Osman M, Bechlivanidis C, Meder B. (Why) Is Misinformation a Problem? Perspect Psychol Sci 2023; 18:1436-1463. [PMID: 36795592 PMCID: PMC10623619 DOI: 10.1177/17456916221141344] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Abstract
In the last decade there has been a proliferation of research on misinformation. One important aspect of this work that receives less attention than it should is exactly why misinformation is a problem. To adequately address this question, we must first look to its speculated causes and effects. We examined different disciplines (computer science, economics, history, information science, journalism, law, media, politics, philosophy, psychology, sociology) that investigate misinformation. The consensus view points to advancements in information technology (e.g., the Internet, social media) as a main cause of the proliferation and increasing impact of misinformation, with a variety of illustrations of the effects. We critically analyzed both issues. As to the effects, misbehaviors are not yet reliably demonstrated empirically to be the outcome of misinformation; correlation as causation may have a hand in that perception. As to the cause, advancements in information technologies enable, as well as reveal, multitudes of interactions that represent significant deviations from ground truths through people's new way of knowing (intersubjectivity). This, we argue, is illusionary when understood in light of historical epistemology. Both doubts we raise are used to consider the cost to established norms of liberal democracy that come from efforts to target the problem of misinformation.
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Affiliation(s)
- Zoë Adams
- Department of Linguistics, School of Languages, Linguistics and Film, Queen Mary University London
| | - Magda Osman
- Centre for Science and Policy, University of Cambridge
- Judge Business School, University of Cambridge
- Leeds Business School, University of Leeds
| | | | - Björn Meder
- Department of Psychology, Health and Medical University, Potsdam, Germany
- Max Planck Research Group iSearch, Max Planck Institute for Human Development, Berlin, Germany
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Myburgh H, Meehan SA, Wademan DT, Osman M, Hesseling AC, Hoddinott G. TB programme stakeholder views on lessons from the COVID-19 response in South Africa. Public Health Action 2023; 13:97-103. [PMID: 37736584 PMCID: PMC10446663 DOI: 10.5588/pha.23.0015] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 06/21/2023] [Indexed: 09/23/2023] Open
Abstract
BACKGROUND The global COVID-19 pandemic has reversed many of the hard-won gains made in TB programmes and the associated reduction in the number of TB deaths, case notifications and incidence over the last three decades. Modelling estimates show that the impact will be lasting. There are global calls to recover the shortfalls along the TB care cascade that have resulted from COVID-19, with the recognition that the COVID-19 response holds lessons to inform more robust and comprehensive TB programmes and services. OBJECTIVE To explore lessons from response measures to the COVID-19 pandemic in two high TB burden South African provinces. DESIGN This was an exploratory qualitative study. We conducted interviews with TB programme stakeholders (managers and facility-level staff: n = 35) between February and June 2022. RESULTS We identified eight facilitators of the COVID-19 response, including political will, rapid policy development, multi-sectoral collaboration, patient-centred models of care delivery, community engagement, mHealth and telehealth technologies, rigorous contact tracing and widespread mask wearing. Political will was singled out as a critical driver of the response. CONCLUSION Leveraging COVID-19 inspired collaborations, technologies and avenues for health service delivery is an opportunity to maximise benefits for the TB programme. Reinvestment in national TB programmes and political prioritisation of TB are critical.
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Affiliation(s)
- H Myburgh
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
- Amsterdam Institute for Social Science Research (AISSR), University of Amsterdam, Amsterdam; Netherlands
- Amsterdam Institute for Global Health & Development, Amsterdam, Netherlands
| | - S-A Meehan
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - D T Wademan
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - M Osman
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
- School of Human Sciences, Faculty of Education, Health & Human Sciences, University of Greenwich, London, UK
| | - A C Hesseling
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - G Hoddinott
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
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Adams Z, Bechlivanidis C, Osman M, O'Hagan J, Naldzhiev D. Self-reported Side-effects of Ultraviolet-C Disinfection Devices. Photochem Photobiol 2023; 99:1299-1309. [PMID: 36533869 DOI: 10.1111/php.13766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022]
Abstract
The COVID-19 pandemic increased sales of portable UV-C devices as a means of inactivating the SARS-CoV-2 virus. Research suggests that excessive UV-C exposure to the eyes and skin can lead to side-effects, primarily photokeratitis and erythema, but these findings are limited to case studies. This study explores self-reported side-effects of UV-C devices by collating five waves of UK consumer survey data from April 2020-December 2021 (N = 26 864). 30%-46% of owners report a side-effect after using a device claiming to emit UV-C. However, detailed analysis of Wave 4 data (N = 309) highlights inconsistencies between reported and plausible side-effect(s) associated with skin or eye exposure from UV-C devices. Alternative explanations are considered, namely that the reported side-effect(s) were psychosomatic or misattributed to direct exposure of UV-C radiation. Data regarding awareness of warnings about device side-effect(s) supports the misattribution explanation. For risk assessment purposes, limited reliable information about specific irritation or injury to the eye and skin was found from self-reporting surveys. To optimize future data collection, we recommend addressing recall errors by: reducing the period under investigation, supplementing responses with empirical measures, and incentivizing respondents to provide accurate information about the make and model of the UV-C device.
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Affiliation(s)
- Zoë Adams
- Queen Mary University of London, London, UK
| | | | | | | | - Dzhordzhio Naldzhiev
- Department for Business, Energy and Industrial Strategy, Office for Product Safety and Standards, London, UK
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Osman M. Misdiagnosing the problem of why behavioural change interventions fail. Behav Brain Sci 2023; 46:e172. [PMID: 37646256 DOI: 10.1017/s0140525x23001085] [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] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Abstract
Routes to achieving any sort of meaningful success in the enterprise of behavioural change requires an understanding of the rate of failure, and why failures occur. This commentary shows that there is more to diagnosis of failures than fixating on micro- rather than the macro-level behaviours.
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Affiliation(s)
- Magda Osman
- Centre for Science and Policy, University of Cambridge, Cambridge, Cambridgeshire, UK ; https://magdaosman.com
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Osman M. Using the study of reasoning to address the age of unreason. Behav Brain Sci 2023; 46:e135. [PMID: 37462201 DOI: 10.1017/s0140525x22002953] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
If we accept that societally, politically, and even culturally enlightenment face some serious challenges, can we use this rethinking of theories of reasoning to address them? The aim here is to make a case for building on the work presented by De Neys as an opportunity to advance an applied reasoning research programme.
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Affiliation(s)
- Magda Osman
- Centre for Science and Policy, University of Cambridge, Cambridge, Cambridgeshire, UK ://magdaosman.com
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Strauss M, Wademan DT, Mcinziba A, Hoddinott G, Rafique M, Jola LN, Streicher C, du Preez K, Osman M, Boffa J, Hausler H, Hesseling AC, Hirsch-Moverman Y. TB preventive therapy preferences among children and adolescents. Int J Tuberc Lung Dis 2023; 27:520-529. [PMID: 37353873 DOI: 10.5588/ijtld.22.0645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/25/2023] Open
Abstract
BACKGROUND: TB preventive therapy (TPT) is critical for ending TB, yet implementation remains poor. With new global guidelines expanding TPT eligibility and regimens, we aimed to understand TPT preferences among children, adolescents and caregivers.METHODS: We undertook a discrete choice experiment among 131 children, 170 adolescents and 173 caregivers, and conducted 17 in-depth interviews in 25 clinics in Cape Town, South Africa. The design included attributes for location, waiting time, treatment duration, dosing frequency, formulation/size, side effects, packaging and taste. Mixed-effects logistic regression models were used for analysis.RESULTS: Among children and caregivers, the number and size of pills, taste and side effects were important drivers of preferences. Among adolescents and caregivers, clinic waiting times and side effects were significant drivers of preferences. Adolescents expressed concerns about being stigmatised, and preferred services from local clinics to services delivered in the community. Dosing frequency and treatment duration were only significant drivers of choice among adolescents, and only if linked to fewer clinic visits.CONCLUSIONS: Introducing shorter TPT regimens in isolation without consideration of preferences and health services may not have the desired effect on uptake and completion. Developing TPT delivery models and formulations that align with preferences must be prioritised.
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Affiliation(s)
- M Strauss
- Health Economics and HIV and AIDS Research Division (HEARD), University of KwaZulu-Natal, Durban, South Africa
| | - D T Wademan
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - A Mcinziba
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - G Hoddinott
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - M Rafique
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - L N Jola
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - C Streicher
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - K du Preez
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - M Osman
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa, School of Human Sciences, Faculty of Education, Health and Human Sciences, University of Greenwich, London, UK
| | - J Boffa
- TB Think Tank, The Aurum Institute, Johannesburg, South Africa, Centre for Rural Health, University of KwaZulu-Natal, Durban, South Africa
| | - H Hausler
- TB HIV Care, Cape Town, South Africa, Department of Family Medicine, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - A C Hesseling
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
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Diab MA, Osman M, Hassan FIA, Walker J. Development of isolated left deltoid compartment syndrome due to meth intoxication with associated Rhabdomyolysis leading to significant kidney damage. Am J Med Sci 2023. [DOI: 10.1016/s0002-9629(23)00496-2] [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: 01/28/2023]
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Diab MA, Osman M, Hassan FIA, Walker J. Miller fisher syndrome in a 20 year old female following infection with SARS-CoV-2. Am J Med Sci 2023. [DOI: 10.1016/s0002-9629(23)00591-8] [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: 01/28/2023]
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Rasheed W, Dweik A, Anil MS, Mirembe L, Al-Bayati M, Hassan FIA, Osman M, Al-Hilli Y, Mohammed B, McMaster K. Increasing inpatient mortality of gastrointestinal angiodysplasia with bleeding in the united states: national inpatient sample, 2016 to 2020. Am J Med Sci 2023. [DOI: 10.1016/s0002-9629(23)00169-6] [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: 01/28/2023]
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Osman M, Diab M, Mohanakrishnan B, Elmahi M, Islam A. A bleeding bite: crotalinae snake envonamation. Am J Med Sci 2023. [DOI: 10.1016/s0002-9629(23)00678-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: 01/28/2023]
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Dharmarpandi G, Hamaad M, Osman M, Dweik N, Al-Bayati M, Hassan FIA, Naguib T. Gemcitabine-induced ST elevation myocardial infarction. Am J Med Sci 2023. [DOI: 10.1016/s0002-9629(23)00220-3] [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] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Moeen A, M. Behnsawy H, Faragallah M, Gadelkareem R, Osman M, Moeen S, Hameed D, Zarzour M. Functional evaluation of a spiral neobladder with an angled Chimney; A prospective randomized comparative study. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00872-2] [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: 02/12/2023]
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Osman M, Diab MA, Dharmarpandi G, Mirembe L, Hassan FIA, Walker J. Chronic gastric volvulus as a rare cause of iron deficiency anemia. Am J Med Sci 2023. [DOI: 10.1016/s0002-9629(23)00166-0] [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: 01/28/2023]
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Baloyi DP, Anthony MG, Meyerson KA, Mazibuko S, Wademan D, Viljoen L, Myburgh H, du Preez K, Osman M, Hirsch-Moverman Y, Charalambous S, Hausler H, Hesseling AC, Hoddinott G. Reasons for poor uptake of TB preventive therapy in South Africa. Public Health Action 2022; 12:159-164. [PMID: 36561901 PMCID: PMC9716815 DOI: 10.5588/pha.22.0030] [Citation(s) in RCA: 4] [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] [Received: 05/03/2022] [Accepted: 08/19/2022] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND South Africa has one the highest TB and HIV burdens globally. TB preventive therapy (TPT) reduces the risk of TB disease and TB-related mortality in adults and children living with HIV and is indicated for use in TB-exposed HIV-negative individuals and children. TPT implementation in South Africa remains suboptimal. METHODS We conducted a pragmatic review of TPT implementation using multiple data sources, including informant interviews (n = 134), semi-structured observations (n = 93) and TB patient folder reviews in 31 health facilities purposively selected across three high TB burden provinces. We used case descriptive analysis and thematic coding to identify barriers and facilitators to TPT implementation. RESULTS TPT programme implementation was suboptimal, with inadequate monitoring even in health districts with well-functioning TB services. Health workers reported scepticism about TPT effectiveness, deprioritised TPT in practice and expressed divergent opinions about the cadres of staff responsible for implementation. Service- and facility-level barriers included ineffective contact tracing, resource shortages, lack of standardised reporting mechanisms and insufficient patient education on TPT. Patient-level barriers included socio-economic factors. CONCLUSIONS Improving TPT implementation will require radically simplified and more feasible systems and training for all cadres of health workers. Partnership with communities to stimulate demand driven service uptake can potentially facilitate implementation.
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Affiliation(s)
- D. P. Baloyi
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - M. G. Anthony
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - K. A. Meyerson
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - S. Mazibuko
- Department of Psychology, University of KwaZulu-Natal, Durban, South Africa
| | - D. Wademan
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - L. Viljoen
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - H. Myburgh
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - K. du Preez
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - M. Osman
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
, School of Human Sciences, University of Greenwich, London, UK
| | - Y. Hirsch-Moverman
- ICAP at Columbia University, Mailman School of Public Health, New York, NY, USA
| | | | | | - A. C. Hesseling
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
| | - G. Hoddinott
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Tygerberg, South Africa
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Osman M, Bechlivanidis C. Impact of personalizing experiences of manipulation outside of awareness on autonomy. Psychology of Consciousness: Theory, Research, and Practice 2022. [DOI: 10.1037/cns0000343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Viljoen L, Hendricks P, Hoddinott G, Vanqa N, Osman M, Hesseling AC, Meehan SA. Early interactions with newly diagnosed TB patients in hospital can support linkage to care. Public Health Action 2022; 12:121-127. [PMID: 36160718 PMCID: PMC9484593 DOI: 10.5588/pha.22.0012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 03/08/2022] [Accepted: 06/20/2022] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND: In South Africa, failure to link individuals diagnosed with TB to care remains an important gap in the TB care cascade. Compared to people diagnosed at primary healthcare (PHC) facilities, people diagnosed in hospitals are more likely to require additional support to be linked with PHC TB treatment services. We describe a patient interaction process to support linkage to TB care. METHODS: We implemented a step-by-step early patient interaction process with 84 adults newly diagnosed with TB in one district hospital in Khayelitsha, Cape Town, South Africa (August 2020–March 2021). We confirmed patient contact details, provided TB and health information, shared information on accessing care at PHC facilities and answered patients’ questions in their home language. RESULTS: Most patients (54/84, 64%) provided updated telephone numbers, and 19/84 (23%) reported changes in their physical address. Patients welcomed practical and health information in their home language. The majority (74/84, 88%) were linked to care after hospital discharge. CONCLUSIONS: A simple early patient interaction process implemented as part of routine care is a feasible strategy to facilitate early TB treatment initiation and registration.
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Affiliation(s)
- L. Viljoen
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa
| | - P. Hendricks
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa
| | - G. Hoddinott
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa
| | - N. Vanqa
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa
| | - M. Osman
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa, School of Human Sciences, Faculty of Education, Health and Human Sciences, University of Greenwich,
Greenwich, UK
| | - A. C. Hesseling
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa
| | - S-A. Meehan
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, South Africa
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Osman M, Hardin J, Street L, Chia J. Transitioning to pegylated interferon for the treatment of cutaneous T-cell lymphoma: meeting the challenge of therapy discontinuation and a proposed algorithm. Eur J Cancer 2022. [DOI: 10.1016/s0959-8049(22)00648-7] [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] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Zahari Sham SY, Abdullah M, Osman M, Seow HF. An insight of dysregulation of microRNAs in the pathogenesis of diabetic kidney disease. Malays J Pathol 2022; 44:187-201. [PMID: 36043582] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
BACKGROUND Worldwide, diabetic kidney disease (DKD) remains the leading cause of chronic kidney disease (CKD) and its successor, the end stage renal disease, both of which constitute major morbidity and mortality concerns. CONTENT The residual risk of disease progression remains despite the advert of newer therapeutic modalities and current biomarkers. Meanwhile, microRNAs (miRNAs) are small non-coding RNAs, which regulate gene expression post-translationally by binding to specific mRNAs. Circulating miRNAs are increasingly recognised as novel biomarker or therapeutic targets, owing to their unique characteristics, such as their resilience to degradation by endogenous RNases, multiple downstream targets, involvement in biological processes, some degree of tissue specificity, relatively easy access and quantification. Unlike proteins, there are far less miRNAs and mature miRNAs are highly stable, structurally less complex without post-translational modification with high degree of conservation across species. Aberrant expression of miRNAs has been established in both in vitro and in vivo models of DKD. An up-to-date compilation of previous studies involving selected circulating miRNAs in blood and urine samples of DKD patients is discussed herein. SUMMARY This review highlights the unmet clinical challenges and dysregulation of miRNAs in the pathogenesis of DKD.
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Affiliation(s)
- S Y Zahari Sham
- Universiti Putra Malaysia, Faculty of Medicine and Health Sciences, Department of Pathology, 43400, Serdang, Selangor, Malaysia.
| | - M Abdullah
- Universiti Putra Malaysia, Faculty of Medicine and Health Sciences, Department of Pathology, 43400, Serdang, Selangor, Malaysia
| | - M Osman
- Universiti Putra Malaysia, Faculty of Medicine and Health Sciences, Department of Clinical Microbiology, 43400, Serdang, Selangor, Malaysia
| | - H F Seow
- Universiti Tunku Abdul Rahman, Faculty of Medicine and Health Sciences, Sungai Long, 43000, Selangor, Malaysia
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Abstract
Zoonoses represent a global public health threat. Understanding lay perceptions of risk associated with these diseases can better inform proportionate policy interventions that mitigate their current and future impacts. While individual zoonoses (e.g. bovine spongiform encephalopathy) have received scientific and public attention, we know little about how multiple zoonotic diseases vary relative to each other in lay risk perceptions. To this end, we examined public perceptions of 11 zoonoses across 12 qualitative attributes of risk among the UK public (n = 727, volunteer sample), using an online survey. We found that attribute ratings were predominantly explained via two basic dimensions of risk related to public knowledge and dread. We also show that, despite participants reporting low familiarity with most of the diseases presented, zoonoses were perceived as essentially avoidable. These findings imply that infection is viewed as dependent upon actions under personal control which has significant implications for policy development.
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Affiliation(s)
- Caroline E Spence
- Department of Psychology, Queen Mary University of London, London, UK
| | - Sarah C Jenkins
- Department of Psychology, Royal Holloway University of London, London, UK
| | - Magda Osman
- Centre for Science and Policy, Judge Business School, University of Cambridge, Cambridge, UK
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Trajman A, Felker I, Alves LC, Coutinho I, Osman M, Meehan SA, Singh UB, Schwartz Y. The COVID-19 and TB syndemic: the way forward. Int J Tuberc Lung Dis 2022; 26:710-719. [PMID: 35898126 PMCID: PMC9341497 DOI: 10.5588/ijtld.22.0006] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [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: 12/13/2022] Open
Abstract
Together, SARS-CoV-2 and M. tuberculosis have killed approximately 5.7 million people worldwide over the past 2 years. The COVID-19 pandemic, and the non-pharmaceutical interventions to mitigate COVID-19 transmission (including social distancing regulations, partial lockdowns and quarantines), have disrupted healthcare services and led to a reallocation of resources to COVID-19 care. There has also been a tragic loss of healthcare workers who succumbed to the disease. This has had consequences for TB services, and the fear of contracting COVID-19 may also have contributed to reduced access to TB services. Altogether, this is projected to have resulted in a 5-year setback in terms of mortality from TB and a 9-year setback in terms of TB detection. In addition, past and present TB disease has been reported to increase both COVID-19 fatality and incidence. Similarly, COVID-19 may adversely affect TB outcomes. From a more positive perspective, the pandemic has also created opportunities to improve TB care. In this review, we highlight similarities and differences between these two infectious diseases, describe gaps in our knowledge and discuss solutions and priorities for future research.
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Affiliation(s)
- A Trajman
- Departamento de Clínica Médica, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil, Montreal Chest Institute & McGill International TB Centre, McGill University, Montreal, QC, Canada
| | - I Felker
- WHO Collaborating Centre, Novosibirsk Tuberculosis Research Institute, Novosibirsk, Russian Federation
| | - L C Alves
- Instituto de Saúde Coletiva, Universidade Federal da Bahia, Salvador, BA
| | - I Coutinho
- Instituto de Medicina Social, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - M Osman
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa, School of Human Sciences, Faculty of Education, Health & Human Sciences, University of Greenwich, London, UK
| | - S-A Meehan
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - U B Singh
- Department of Microbiology, All India Institute of Medical Sciences, New Delhi, India
| | - Y Schwartz
- WHO Collaborating Centre, Novosibirsk Tuberculosis Research Institute, Novosibirsk, Russian Federation
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Keeling S, Pan B, Hutchings E, Wichuk S, Osman M, Singh A, Sonpar A, Swartz I, Maksymowych WP. POS1259 AXIAL SPONDYLOARTHRITIS, AGE AND MALE GENDER IMPACT COVID VACCINATION AEs MORE THAN RHEUMATOID ARTHRITIS. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.4156] [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] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundRheumatologists recommend vaccination in rheumatoid arthritis (RA) and axial spondyloarthritis (axSpA) patients, but there are few studies on the occurrence of adverse events (AEs), particularly worsening disease related activity and unrelated immune reactions in these groups.ObjectivesTo evaluate the uptake of COVID vaccination in RA and axSpA patients, compare the frequency of AEs, and identify risk factors associated with vaccine AEs in two prospective cohorts comprised of these patients.MethodsThe IMPACT study is a monthly survey of two prospective cohorts of established RA and axSpA patients in northern Alberta, Canada from November 2020-2021 who answered at least one or more Redcap surveys through de-identified email link surveying demographics, disease characteristics, COVID symptoms, treatment of RA and axSpA, health care utilization, vaccination status, vaccine AEs and use of cannabis. Univariate analyses evaluated independent variables associated with the dependent variables of (1) any AE, (2) any severe AE, (3) any arthritis flare, and (4) any severe arthritis flare, followed by multivariate analyses of these four dependant variables using all clinically relevant variables from the univariate analysis.Results773/2167 patients (RA 574, axSpA 197) responded to at least one survey. 32/663 (5%) were single vaccinated, 631 (95%) double vaccinated and 230 (54%) triple vaccinated with 80% receiving Pfizer, 24% Moderna, 28% AstraZeneca and 30% “other”. 456 (69%) reported at least one AE (Figure 1) with 21 (3%) patients seeing a physician for their AE. Increased age was associated with all AEs. RA patients had lower reported AEs versus axSpA patients for all AE definitions except for severe arthritis flares. Generally, males reported worse AEs (Table 1). “Any arthritis flare” was lower in patients reporting cannabis use.Table 1.Summary of Multivariate Level Mixed-Effect Logistic Regression Models Evaluating the IMPACT of RA and axSpA Disease Characteristics on Vaccine AEsVariableAny Adverse EventOR (95 % CI) p valueSevere Adverse Event* OR 95 % CI) p valueAny Arthritis Flare or Joint Ache Adverse Event OR (95 % CI) p valueAny Severe Arthritis Flare or Joint Ache* OR (95 % CI) p valueGenderMale1.47 (0.89 – 2.43)p=0.132.10 (1.30-3.41)p=0.0032.05 (1.20 – 3.50) p=0.013.97 (1.84 – 8.57)p=0.0004FemaleAge1.06 (1.04 – 1.08)p<0.011.05 (1.03 – 1.06)p<0.011.03 (1.01 – 1.04)p=0.0031.03 (1.01 – 1.06)p=0.004Rheumatic Disease TypeRA0.42 (0.23 – 0.76)p=0.050.55 (0.31 – 0.98)p=0.040.52 (0.28 – 0.98)p=0.040.78 (0.34 – 1.78)p=0.55axSpASteroidsYes0.85 (0.40 – 1.83) P=0.680.66 (0.32 – 1.35) p=0.250.84 (0.36 – 1.95) p=0.690.38 (0.15 – 0.97)p=0.04NoNSAIDSYes1.11 (0.81 – 1.52) p=0.511.03 (0.75 – 1.41)p=0.861.05 (0.74 – 1.48)p=0.801.17 (0.73 – 1.89)p=0.52NoCurrent Disease Activity0.95 (0.88 – 1.03) p=0.230.90 (0.83 – 0.97)p=0.190.92 (0.85 – 1.00)p=0.060.82 (0.74 – 0.92)p=0.001HAQ1.08 (0.73 – 1.61) p=0.700.77 (0.52 – 1.14)p=0.010.74 (0.48 – 1.13)p=0.170.65 (0.38 – 1.11)p=0.12Nicotine productsYes1.33 (0.75 – 2.37) p=0.341.42 (0.80 – 2.52)p=0.241.15 (0.60 – 2.01)p=0.760.97 (0.43 – 2.17)p=0.94NoCannabis productsYes0.78 (0.49 – 1.25) p=0.300.87 (0.55 – 1.38)p=0.550.51 (0.31 – 0.83)p=0.070.66 (0.35 – 1.26)p=0.21NoDMARDsYes1.98 (1.28 – 3.06)p=0.0021.52 (1.01 – 2.28)p=0.051.43 (0.91 – 2.23) p=0.121.86 (1.03 – 3.36)p=0.04NoBiologic DMARDYes0.72 (0.42 – 1.25) p=0.240.79 (0.45 – 1.41) p=0.431.20 (0.66 – 2.18 p=0.541.39 (0.63 – 3.08)p=0.42No*Severe = Any of the following: ranked moderate to severe and/or lasting more than 7 days and/or saw physicianConclusionRA and axSpA patients showed high uptake of COVID vaccination with largely minor AEs. Older age and male gender were associated with more general and arthritis specific AEs. The association of any AE and/or arthritis-specific AEs in SpA versus RA patients is a novel finding which may correlate with the male predominance of SpA. The association of cannabis with fewer arthritis AEs may reflect the nociceptive properties of cannabis.AcknowledgementsEpidemiology Coordinating and Research (EPICORE) Centre provided support for the REDCAP survey and biostatistical analyses.Disclosure of InterestsStephanie Keeling Speakers bureau: Pfizer, Abbvie, GSK, UCB, Consultant of: Abbvie, GSK, UCB, AstraZeneca, Sandoz, Pfizer, Grant/research support from: Abbvie, Sandoz, Merck, UCB, Bo Pan: None declared, Edna Hutchings Shareholder of: BMS, Stephanie Wichuk: None declared, Mohammed Osman Speakers bureau: Boehringer Ingelheim, Takeda Pharmaceuticals, Grant/research support from: Boehringer Ingelheim and CSL-Behring, Ameeta Singh: None declared, Ashlesha Sonpar Speakers bureau: Novartis, Ilan Swartz: None declared, Walter P Maksymowych Speakers bureau: Abbvie, Janssen, Novartis, Pfizer, UCB, Consultant of: Abbvie, Boehringer Ingelheim, Celegene, Eli-Lilly, Galapagos, Novartis, Pfizer, UCB, Grant/research support from: Abbvie, Novartis, Pfizer, UCB
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Keeling S, Pan B, Hutchings E, Wichuk S, Osman M, Singh A, Sonpar A, Swartz I, Maksymowych WP. POS1258 LESS THAN EXPECTED IMPACT OF RHEUMATOID ARTHRITIS AND AXIAL SPONDYLOARTHRITIS DISEASE ON COVID SEVERITY. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.4152] [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] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundThroughout the pandemic, there has been ongoing concern that people with autoimmune diseases such as rheumatoid arthritis (RA) and axial spondyloarthritis (axSpA) will have more severe COVID-19 disease due to immune dysfunction associated with autoimmune diseases and their treatment.ObjectivesWe aimed to compare the severity of COVID-19 in patients with RA versus axSpA and characterize the predictors of COVID-19 severity during the pre-Omicron pandemic phases.MethodsThe IMPACT (IMPact of inflammatory Arthritis on COVID Outcomes STudy) study is a monthly survey of two established northern Alberta, Canada prospective cohorts of RA and axSpA patients from November 2020-2021 who answered Redcap surveys through de-identified email link surveying patient demographics, disease characteristics, COVID-19 symptoms, treatment of RA and axSpA, health care utilization, vaccination status and vaccine adverse events. Descriptive and univariate analyses (dependent variable = severe COVID-19) were performed followed by multivariate analyses of all significant and clinically relevant independent variables from the univariate analysis. Infection severity was defined as any patient with COVID-19 symptoms who visited a doctor, ER or required hospital admission.Results773 of 2167 (36%) patients (RA n=574, axSpA n=197) registered in both cohorts answered at least one baseline survey, 28 (4%) reporting positive COVID-19 tests (24 positive once). Of 442 reporting COVID-19 symptoms during the survey, 11 (3%) were admitted for a mean of 4 days, 2 requiring ICU or blood clot treatment and 1 requiring advanced therapy. 116 (26%) visited a physician for Covid symptoms. Univariate analysis showed that the use of steroids, NSAIDs and increased disease activity were associated with having less severe infection but these associations were not significant in the multivariate analysis (Table 1). There were no significant impacts of RA vs axSpA, age, gender, treatment, disease activity, or smoking.Table 1.Multivariate Level Mixed-Effect Logistic Regression Model: IMPACT of RA and axSpA Disease Characteristics on COVID Infection Severity Defined as Patients with COVID Symptoms Requiring Visit to Doctor, Emergency Room and/or Hospital Admission.VariableCoefficient (S.E)Odds Ratio (95 % Confidence Interval)P-valueGenderMale0.17 (0.34)1.18 (0.61 – 2.31)0.6193FemaleReferenceAge-0.01 (0.01)0.99 (0.97 – 1.01)0.2543Rheumatic Disease TypeRA0.18 (0.40)1.20 (0.58 – 2.48)0.6213SpAReferenceSteroidsYes-0.40 (0.56)0.67 (0.23 – 2.01)0.4757NoReferenceNSAIDSYes-0.20 (0.26)0.82 (0.49 – 1.37)0.4508NoReferenceCurrent Disease Activity-0.04 (0.06)0.96 (0.85 – 1.09)0.5275HAQ-0.03 (0.29)0.97 (0.55 – 1.70)0.9041Nicotine productsYes-0.67 (0.37)0.51 (0.25 – 1.06)0.0714NoReferenceCannabis productsYes-0.45 (0.31)0.64 (0.35 – 1.18)0.1510NoReferenceDMARDsYes0.26 (0.30)1.30 (0.72 – 2.35)0.3860NoReferenceBiologic DMARDYes-0.46 (0.43)0.63 (0.27 – 1.46)0.2813NoReferenceConclusionPossible disease related risk factors for increased COVID-19 severity in RA and axSpA patients preceding the onset of the Omicron variant including use of steroids or DMARDs were not associated with severe infection. These findings are consistent with other international studies whereby other non-rheumatic disease comorbidities played a greater role in infection severity.AcknowledgementsEpidemiology Coordinating and Research (EPICORE) Centre provided support for the REDCAP survey and biostatistical anayses.Disclosure of InterestsStephanie Keeling Speakers bureau: Abbvie, GSK, Pfizer, UCB, Consultant of: Abbvie, GSK, Pfizer, Sandoz, UCB, Eli-Lilly, Galapagos, Novartis, Grant/research support from: Abbvie, UCB, Sandoz, Pfizer, Merck, Bo Pan: None declared, Edna Hutchings Shareholder of: BMS, Stephanie Wichuk: None declared, Mohammed Osman Speakers bureau: Boehringer Ingelheim, Takeda Pharmaceuticals, Grant/research support from: Yes, Boehringer Ingelheim and CSL-Behring, Ameeta Singh: None declared, Ashlesha Sonpar Speakers bureau: Novartis, Ilan Swartz: None declared, Walter P Maksymowych Speakers bureau: Abbvie, Janssen, Novartis, Pfizer, UCB, Consultant of: Abbvie, Boehringer Ingelheim, Celegene, Eli-Lilly, Galapagos, Novartis, Pfizer, UCB, Grant/research support from: Abbvie, Novartis, Pfizer, UCB
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Ludwiczak A, Adams Z, Osman M. Actions Do Not Always Speak Louder Than Words. Exp Psychol 2022; 69:155-162. [DOI: 10.1027/1618-3169/a000555] [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] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Abstract. Financial (dis)incentives (e.g., bonuses, taxes) and social incentives (e.g., public praise) have typically been proposed as methods to encourage greater cooperation for the benefit of all. However, when cooperation requires exertion of effort, such interventions might not always be effective. While incentives tend to be highly motivating when choosing to exert effort, evidence suggests that they have less of an effect on behavior during effort execution. The aim of this exploratory study was to incorporate these insights into empirical investigation of the effects of social incentives on cooperative effort. To this end, we modified a public goods game task to require effort contributions to a common good. Crucial manipulation involved incorporating social incentives into this task and linking them to (a) choices that people made or (b) effortful actions they exerted. Our findings suggest, in line with recent effort-based decision-making models, that social incentives have a stronger effect on cooperative effort when they are linked to choices that people make, rather than the actual effort they exert. This study demonstrates potential benefits of eliciting a priori declarations of cooperative effort tied to social incentives to encourage greater effort for the benefit of all.
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Affiliation(s)
- Agata Ludwiczak
- Biological and Experimental Psychology Department, School of Biological and Chemical Sciences, Queen Mary, University of London, London, UK
- Department of Psychology and Counselling, School of Human Sciences, University of Greenwich, Old Royal Naval College, London, UK
| | - Zoe Adams
- Biological and Experimental Psychology Department, School of Biological and Chemical Sciences, Queen Mary, University of London, London, UK
| | - Magda Osman
- Centre for Science and Policy, University of Cambridge, Cambridge, UK
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Othman R, Mohtarrudin N, Ahmad Zubir NM, Seow HF, Ngan KW, Osman M. HER3 overexpression and hypomethylation in colorectal adenocarcinoma. Malays J Pathol 2022; 44:67-74. [PMID: 35484888] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
INTRODUCTION Colorectal cancer (CRC) is the third most common cancer worldwide and the second leading cancer in Malaysia. Despite advanced therapies, many cases of recurrence and resistance have been reported. Aberrant DNA methylation of HER3 has been implicated in carcinogenesis of CRC mainly through the regulation of gene expression. Hence, the objective of this study was to determine the status of HER3 DNA methylation and its effects on gene expression in CRC. MATERIALS AND METHODS Fifty-nine of archival formalin-fixed, paraffin-embedded CRC cases with the adjacent normal colon tissues were retrieved. Manual micro-dissection was performed prior to RNA and DNA extraction. HER3 gene expression and DNA methylation status was evaluated by qPCR and methylation-specific PCR (MSP) techniques respectively. RESULTS Upregulation of HER3 mRNA was found in CRC tissue compared to its adjacent normal colon tissue (8.04-fold). Of 59 CRC samples, 8.5% were methylated and 91.5% were unmethylated (hypomethylation). In the adjacent normal colon tissues, methylated and unmethylated tissue were observed in 6.8%and 93.2% respectively. DNA methylation of HER3 showed a significant association with tumour differentiation and tumour location. CONCLUSION This study showed upregulation and hypomethylation of the HER3 gene in CRC cases. Epigenetic alterations were also found in the adjacent normal colon tissues. Thus, upregulation and hypomethylation of HER3 may play a key role in carcinogenesis of CRC. Hypomethylation of CpG islands might be associated with early steps during carcinogenesis. The findings of this biomarker serve a powerful approach to improve the current diagnostic and therapeutic measures.
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Affiliation(s)
- R Othman
- Universiti Putra Malaysia, Faculty of Medicine and Health Sciences, Department of Pathology, Selangor, Malaysia
| | - N Mohtarrudin
- Universiti Putra Malaysia, Faculty of Medicine and Health Sciences, Department of Pathology, Selangor, Malaysia.
| | - N M Ahmad Zubir
- Universiti Putra Malaysia, Faculty of Medicine and Health Sciences, Department of Pathology, Selangor, Malaysia
| | - H F Seow
- Universiti Putra Malaysia, Faculty of Medicine and Health Sciences, Department of Pathology, Selangor, Malaysia
| | - K W Ngan
- Hospital Serdang, Department of Pathology, Selangor, Malaysia
| | - M Osman
- Universiti Putra Malaysia, Faculty of Medicine and Health Sciences, Department of Medical Microbiology and Parasitology, Selangor, Malaysia
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Pai V, Talukder S, Martinez L, Kydd A, Bhagra S, Lewis C, Parameshwar J, Messer S, Osman M, Virdi A, Cacciottolo P, Kaul P, Rafiq M, Allen J, Large S, Tsui S, Jenkins D, Pettit S, Berman M. Outcomes of Mechanical Circulatory Support for Severe Primary Graft Dysfunction After DBD versus DCD Heart Transplantation. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.109] [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: 10/18/2022] Open
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Berman M, Ali A, Macklam D, Garcia Saez D, Jothidasan A, Husain M, Stock U, Mehta V, Venkateswaran R, Curry P, Messer S, Mukadam M, Mascaro J, Clarke S, Baxter J, Tsui S, Large S, Osman M, Kaul P, Boda G, Jenkins D, Simmonds J, Quigley R, Whitney J, Gardiner D, Watson C, Rubino A, Currie I, Foley J, Macleod A, Slater C, Marley F, Downward L, Rushton S, Armstrong L, Ayton L, Ryan M, Parker M, Gibson S, Spence S, Quinn K, Watson S, Forsythe J. UK National DCD Heart Transplant Program - First Year Experience. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.117] [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] Open
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Baxter J, Quigley R, Osman M, Berman M, Kaul P. Continuing to Extend the Nurses Role in Novel Technologies. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.1567] [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: 10/18/2022] Open
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Edmunds CER, Harris AJL, Osman M. Applying Insights on Categorisation, Communication, and Dynamic Decision-Making: A Case Study of a ‘Simple’ Maritime Military Decision. Review of General Psychology 2022. [DOI: 10.1177/10892680221077242] [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] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
A complete understanding of decision-making in military domains requires gathering insights from several fields of study. To make the task tractable, here we consider a specific example of short-term tactical decisions under uncertainty made by the military at sea. Through this lens, we sketch out relevant literature from three psychological tasks each underpinned by decision-making processes: categorisation, communication and choice. From the literature, we note two general cognitive tendencies that emerge across all three stages: the effect of cognitive load and individual differences. Drawing on these tendencies, we recommend strategies, tools and future research that could improve performance in military domains – but, by extension, would also generalise to other high-stakes contexts. In so doing, we show the extent to which domain general properties of high order cognition are sufficient in explaining behaviours in domain specific contexts.
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Affiliation(s)
| | - Adam J. L. Harris
- Department of Experimental Psychology, University College London, London, UK
| | - Magda Osman
- Centre for Science and Policy, University of Cambridge, Cambridge, MA, USA
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Osman M, Doukas G, Namjoshi G, Khalil R, Ali J, Bhusari S. Spilled gallstone mimicking right middle lobe pulmonary nodule. Ann R Coll Surg Engl 2022; 104:29-31. [PMID: 35100861 DOI: 10.1308/rcsann.2021.0747] [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] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023] Open
Abstract
Laparoscopic cholecystectomy is the standard of care for the surgical management of symptomatic gallstone disease. Gallstone spillage at laparoscopic cholecystectomy is common, with a reported incidence of 0.2-20%. In the majority of cases there are no complications associated with this spillage, but a series of studies report patients with complications of free peritoneal gallstones. We present a case of migration of gallstone to the lung resulting in an inflammatory mass in the right middle lobe as a complication of spillage at laparoscopic cholecystectomy.
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Affiliation(s)
- M Osman
- Basildon and Thurrock University Hospitals NHS Foundation Trust, UK
| | - G Doukas
- Basildon and Thurrock University Hospitals NHS Foundation Trust, UK
| | - G Namjoshi
- Basildon and Thurrock University Hospitals NHS Foundation Trust, UK
| | - R Khalil
- Ain Shams University, Cairo, Egypt
| | - J Ali
- Royal Papworth Hospital NHS Foundation Trust, UK
| | - S Bhusari
- Basildon and Thurrock University Hospitals NHS Foundation Trust, UK
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Marx FM, Meehan SA, Jivan D, Dunbar R, Hoddinott G, Hesseling AC, Osman M. Use of interactive messaging to reduce pre-diagnosis loss to follow-up for TB care. Int J Tuberc Lung Dis 2022; 26:26-32. [PMID: 34969425 DOI: 10.5588/ijtld.21.0332] [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] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
OBJECTIVE: To investigate the uptake and usage of a WhatsApp-based interactive communication strategy to avert pre-diagnosis loss to follow-up (LTFU) from TB care in a high-incidence setting.METHODS: We enrolled adults (≥18 years) who underwent routine sputum TB testing in two primary healthcare clinics in Khayelitsha, Cape Town, South Africa. The intervention consisted of structured WhatsApp-based reminders (prompts) sent prior to a routine clinic appointment scheduled 2-3 days after the diagnostic visit. Pre-diagnosis LTFU was defined as failure to return for the scheduled appointment and within 10 days.RESULTS: We approached 332 adults with presumptive TB, of whom 103 (31%) were successfully enrolled; 213 (64%) did not own a WhatsApp-compatible phone. Of 103 participants, 74 (72%) actively responded to WhatsApp prompts; 69 (67%) opted to include a close contact in group communication to co-receive reminders. Pre-diagnosis LTFU was low overall (n = 7, 6.8%) and was not associated with failure to respond to WhatsApp prompts.CONCLUSION: In this high-incidence setting, enrolment in a WhatsApp-based communication intervention among adults with presumptive TB was low, mainly due to low availability of WhatsApp-compatible phones. Among participants, we observed high message response rates and low LTFU, suggesting potential for interactive messaging services to support pre-diagnosis TB care.
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Affiliation(s)
- F M Marx
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa, DSI-NRF South African Centre of Excellence in Epidemiological Modelling and Analysis, Faculty of Science, Stellenbosch University, Stellenbosch, South Africa
| | - S-A Meehan
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - D Jivan
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - R Dunbar
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - G Hoddinott
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - A C Hesseling
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - M Osman
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
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Abstract
INTRODUCTION More than one million breast augmentation procedures using silicone breast implants (SBI) have been performed worldwide. Adverse events of SBI include local complications such as pain, swelling, redness, infections, capsular contracture, implant rupture and gel-bleed. Furthermore, patients experience systemic symptoms such as chronic fatigue, arthralgias, myalgias, pyrexia, sicca, and cognitive dysfunction. These symptoms received different names such as autoimmune/inflammatory syndrome induced by adjuvants (ASIA) due to silicone incompatibility syndrome and breast implant illness (BII). Because of chronic immune activation, BII/ASIA, allergies, autoimmune diseases, immune deficiencies and finally lymphomas may develop in SBI patients. AREAS COVERED Causality for SBI-related BII/ASIA is reviewed. To address the role of silicone implants in promoting causality, we utilized the Bradford-Hill criteria, with results highlighted in this article. EXPERT OPINION We conclude that there is a causal association between SBIs and BII/ASIA. Using data derived from patients with BII/ASIA and from other medically implanted devices, there appears to be clear pathogenic relationship between SBI and BII/ASIA. Breast implants cause characteristic systemic reactions in certain women, leading to symptoms of sufficient severity to warrant device removal. The morbidity suffered is variable. SBI removal resolves the symptoms in most women and removal is the most effective treatment.
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Affiliation(s)
- J W Cohen Tervaert
- Division of Rheumatology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - N Mohazab
- Division of Rheumatology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - D Redmond
- Division of Rheumatology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - C van Eeden
- Division of Rheumatology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - M Osman
- Division of Rheumatology, Department of Medicine, University of Alberta, Edmonton, Alberta, Canada
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Osman M, Doukas G, Namjoshi G, Khalil R, Ali J, Bhusari S. Spilled gallstone mimicking right middle lobe pulmonary nodule. Ann R Coll Surg Engl 2021; 104:e29-e31. [PMID: 34807771 DOI: 10.1308/rcsann.2021.0023] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Laparoscopic cholecystectomy is the standard of care for the surgical management of symptomatic gallstone disease. Gallstone spillage at laparoscopic cholecystectomy is common, with a reported incidence of 0.2-20%. In the majority of cases there are no complications associated with this spillage, but a series of studies report patients with complications of free peritoneal gallstones. We present a case of migration of gallstone to the lung resulting in an inflammatory mass in the right middle lobe as a complication of spillage at laparoscopic cholecystectomy.
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Affiliation(s)
- M Osman
- Basildon and Thurrock University Hospitals NHS Foundation Trust, UK
| | - G Doukas
- Basildon and Thurrock University Hospitals NHS Foundation Trust, UK
| | - G Namjoshi
- Basildon and Thurrock University Hospitals NHS Foundation Trust, UK
| | - R Khalil
- Ain Shams University, Cairo, Egypt
| | - J Ali
- Royal Papworth Hospital NHS Foundation Trust, UK
| | - S Bhusari
- Basildon and Thurrock University Hospitals NHS Foundation Trust, UK
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Kobo O, Khattak S, Lopez-Mattei J, Van Spall H, Graham M, Cheng R, Osman M, Sun L, Ullah W, Fischman D, Roguin A, Mohamed OM, Mamas MA. Trends in cardiovascular mortality of cancer patients in the US over two decades 1999–2019. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.1122] [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
Cancer is the second most common cause of death globally after cardiovascular (CV) disease. The present study sought to compare the trends in CV mortality between patients with and without cancer in the US over two decades (1999 to 2019), stratified by sociodemographic factors such as age, sex and geographical location.
Methods
In this retrospective study, the number of deaths, crude- and age-adjusted mortality rates between January 1, 1999, and December 31, 2019, were obtained from the Centers for Disease Control and Prevention Wide-Ranging Online Data for Epidemiologic Research (CDC WONDER) data set
Results
We examined a total of 53,422,612 deaths between 1999 and 2019; of which 33.4% were defined as CV mortality and 25.6% had malignancy. During this period, among patients with cancer, the age-adjusted mortality rate dropped by 52%. (Vs, 38% in patients with no malignancy). CV mortality was highest in patients with gastrointestinal and prostate malignancy where CV mortality accounts together for over 40% of all CV mortality in patients with cancer in 1999 and 33.6% in 2019. The age-adjusted CV mortality rate (per 100,000 people) of patients with GI and prostate cancer nearly halved over twenty years from 2.7 to 1.0 and 2.5 to 1.0.
The CV age-adjusted mortality rate dropped more significantly among patients with gastrointestinal, breast, and prostate malignancy than among patients with hematological malignancy (59–63% vs. 41%. We observed that crude CV mortality rates amongst patients with cancer declined over the study period in all age groups but was more prominent among patients over 65 years old than those aged 55–64 and under 55 (51%-55% Vs. 41%, 25%, respectively).Similar reductions in mortality in men and women (54% and 53% reduction) were observed
During the study period the decline in cardiovascular mortality was more prominent in metro areas which led to lower age adjusted CV mortality in Metro compared to non-Metro areas (5.7–6.3 vs 7.2). The decline in age adjusted CV mortality in patients with cancer differed significantly in different states
Conclusions
In our temporal analysis we show a 50% decline in CV mortality in the US over two decades in both male and female patients with cancer, that has exceeded the reduction in CV mortality seen in the non-cancer population. The greatest reductions in CV mortality were observed in patients with GI, breast and prostate malignancies, those residing in metro areas and in patients aged 65 and over.
Funding Acknowledgement
Type of funding sources: None. CV death among cancer patients
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Affiliation(s)
- O Kobo
- Hillel Yaffe Medical Center, Hadera, Israel
| | - S Khattak
- Keele University, Stoke-on-Trent, United Kingdom
| | - J Lopez-Mattei
- University of Texas Health Science Center, Houston, United States of America
| | - H Van Spall
- Population Health Research Institute, Hamilton, Canada
| | - M Graham
- University of Alberta, Edmonton, Canada
| | - R Cheng
- University of Washington, Seattle, United States of America
| | - M Osman
- West Virginia Institute Heart and Vascular Institute, Morgantown, United States of America
| | - L Sun
- University of Ottawa Heart Institute, Ottawa, Canada
| | - W Ullah
- Thomas Jefferson University, Philadelphia, United States of America
| | - D Fischman
- Thomas Jefferson University, Philadelphia, United States of America
| | - A Roguin
- Hillel Yaffe Medical Center, Hadera, Israel
| | - O M Mohamed
- Keele University, Stoke-on-Trent, United Kingdom
| | - M A Mamas
- Keele University, Stoke-on-Trent, United Kingdom
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Puthucheary ZA, Osman M, Harvey DJR, McNelly AS. Talking to multi-morbid patients about critical illness: an evolving conversation. Age Ageing 2021; 50:1512-1515. [PMID: 34120162 DOI: 10.1093/ageing/afab107] [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] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Indexed: 11/13/2022] Open
Abstract
Conversations around critical illness outcomes and benefits from intensive care unit (ICU) treatment have begun to shift away from binary discussions on living versus dying. Increasingly, the reality of survival with functional impairment versus survival with a late death is being recognised as relevant to patients. Most ICU admissions are associated with new functional and cognitive disabilities that are significant and long lasting. When discussing outcomes, clinicians rightly focus on patients' wishes and the quality of life (QoL) that they would find acceptable. However, patients' views may encompass differing views on acceptable QoL post-critical illness, not necessarily reflected in standard conversations. Maintaining independence is a greater priority to patients than simple survival. QoL post-critical illness determines judgments on the benefits of ICU support but translating this into clinical practice risks potential conflation of health outcomes and QoL. This article discusses the concept of response shift and the implication for trade-offs between number/length of invasive treatments and change in physical function or death. Conversations need to delineate how health outcomes (e.g. tracheostomy, muscle wasting, etc.) may affect individual outcomes most relevant to the patient and hence impact overall QoL. The research strategy taken to explore decision-making for critically ill patients might benefit from gathering qualitative data, as a complement to quantitative data. Patients, families and doctors are motivated by far wider considerations, and a consultation process should relate to more than the simple likelihood of mortality in a shared decision-making context.
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Affiliation(s)
- Zudin A Puthucheary
- William Harvey Research Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
- Adult Critical Care Unit, Royal London Hospital, London, UK
| | - Magda Osman
- School of Biological and Chemical Sciences, Queen Mary University of London, London, UK
| | - Dan J R Harvey
- Critical Care, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Angela S McNelly
- William Harvey Research Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
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Rahman ABA, Rahman MSA, Ariffin AM, Ali NHN, Ghani ABA, Lau KY, Mohamad MS, Osman M. Investigation of BaTiO3 and TiO2 Based Nano-fillers on the Space Charge and Electrical Strength of Cross-linked Polyethylene (XLPE). 2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) 2021. [DOI: 10.1109/icpadm49635.2021.9493920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Rahman ABA, Rahman MSA, Ariffin AM, Ali NHN, Ghani ABA, Lau KY, Mohamad MS, Osman M. Influence of SiO2 and ZrO2 Nanocomposite on the AC Breakdown Strength of Cross-linked Polyethylene (XLPE). 2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) 2021. [DOI: 10.1109/icpadm49635.2021.9493980] [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] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
Affiliation(s)
- A. B. Abd Rahman
- Universiti Tenaga Nasional,Institute of Power Engineering,Selangor,Malaysia
| | - M. S. Abd Rahman
- Universiti Tenaga Nasional,Institute of Power Engineering,Selangor,Malaysia
| | - A. Mohd Ariffin
- Universiti Tenaga Nasional,Institute of Power Engineering,Selangor,Malaysia
| | - N. H. Nik Ali
- Universiti Teknologi MARA,College of Engineering,Shah Alam,Selangor,Malaysia
| | | | - K. Y. Lau
- Universiti Teknologi Malaysia,Institute of High Voltage and High Current,Johor Bahru,Malaysia
| | - M. S. Mohamad
- Universiti Teknologi Malaysia,Institute of High Voltage and High Current,Johor Bahru,Malaysia
| | - M. Osman
- Universiti Tenaga Nasional,Institute of Power Engineering,Selangor,Malaysia
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40
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Nik Ali NH, Mohd Ariffin A, Abd Rahman MS, Osman M, Zaini NH, Rameli N. Analysis of Permittivity and Temperature Effect on Charge Accumulation within Cross-Linked Polyethylene (XLPE) via Numerical Simulation. 2021 IEEE International Conference on the Properties and Applications of Dielectric Materials (ICPADM) 2021. [DOI: 10.1109/icpadm49635.2021.9493900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Lofstedt R, McLoughlin M, Osman M. Uncertainty analysis: results from an empirical pilot study. A research note. Journal of Risk Research 2021; 24:606-616. [PMID: 0 DOI: 10.1080/13669877.2017.1313768] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 02/15/2017] [Indexed: 05/20/2023]
Affiliation(s)
- Ragnar Lofstedt
- King’s Centre for Risk Management, Department of Geography, King’s College London, London, UK
| | - Maeve McLoughlin
- King’s Centre for Risk Management, Department of Geography, King’s College London, London, UK
| | - Magda Osman
- School of Biological and Chemical Sciences, Queen Mary University of London, London, UK
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42
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Zayet S, Klopfenstein T, Ursulescu N, Belfeki N, Gendrin V, Osman M. Distinguishing coronavirus disease 2019 from influenza in children remains challenging. New Microbes New Infect 2021; 41:100888. [PMID: 33936745 PMCID: PMC8065235 DOI: 10.1016/j.nmni.2021.100888] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2021] [Revised: 04/20/2021] [Accepted: 04/20/2021] [Indexed: 11/01/2022] Open
Abstract
Clinical descriptions about influenza-like illness in children seem non-specific during the co-circulation of SARS-CoV-2 and influenza. This paper aimed to summarize recent studies comparing clinical features and outcome, laboratory and radiological findings of COVID-19 patients with influenza patients in the paediatric population.
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Affiliation(s)
- S. Zayet
- Infectious Disease Department, Nord Franche-Comté Hospital, Trévenans, France
| | - T. Klopfenstein
- Infectious Disease Department, Nord Franche-Comté Hospital, Trévenans, France
| | - N. Ursulescu
- Paediatrics and Neonatology Department, Nord Franche-Comté Hospital, Trévenans, France
| | - N. Belfeki
- Department of Internal Medicine, Groupe Hospitalier Sud Ile de France, Melun, France
| | - V. Gendrin
- Infectious Disease Department, Nord Franche-Comté Hospital, Trévenans, France
| | - M. Osman
- University Tunis El Manar, Faculty of Medicine of Tunis, Tunisia
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Abstract
People make judgments of others based on appearance, and these inferences can affect social interactions. Although the importance of facial appearance in these judgments is well established, the impact of the body morphology remains unclear. Specifically, it is unknown whether experimentally varied body morphology has an impact on perception of threat in others. In two preregistered experiments (N = 250), participants made judgments of perceived threat of body stimuli of varying morphology, both in the absence (Experiment 1) and presence (Experiment 2) of facial information. Bodies were perceived as more threatening as they increased in mass with added musculature and portliness, and less threatening as they increased in emaciation. The impact of musculature endured even in the presence of faces, although faces contributed more to the overall threat judgment. The relative contributions of the faces and bodies seemed to be driven by discordance, such that threatening faces exerted the most influence when paired with non-threatening bodies, and vice versa. This suggests that the faces and bodies were not perceived as entirely independent and separate components. Overall, these findings suggest that body morphology plays an important role in perceived threat and may bias real-world judgments.
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Affiliation(s)
- Terence J. McElvaney
- Department of Biological and Experimental Psychology, School of Biological and Chemical Sciences, Queen Mary University of London, London, United Kingdom
- * E-mail:
| | - Magda Osman
- Department of Biological and Experimental Psychology, School of Biological and Chemical Sciences, Queen Mary University of London, London, United Kingdom
| | - Isabelle Mareschal
- Department of Biological and Experimental Psychology, School of Biological and Chemical Sciences, Queen Mary University of London, London, United Kingdom
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Allwood BW, Stolbrink M, Baines N, Louw E, Wademan DT, Lupton-Smith A, Nel S, Maree D, Mpagama S, Osman M, Marx FM, Hoddinott G, Lesosky M, Rylance J, Mortimer K. Persistent chronic respiratory symptoms despite TB cure is poorly correlated with lung function. Int J Tuberc Lung Dis 2021; 25:262-270. [PMID: 33762069 PMCID: PMC8009599 DOI: 10.5588/ijtld.20.0906] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND: Persistent respiratory symptoms and lung function deficits are common after patients with TB. We aimed to define the burden of post-TB lung disease (PTLD) and assess associations between symptoms and impairment in two high TB incidence communities.METHODS: This was a cross-sectional survey of adults in Cape Town, South Africa who completed TB treatment 1-5 years previously. Questionnaires, spirometry and 6-minute walking distance (6MWD) were used to assess relationships between outcome measures and associated factors.RESULTS: Of the 145 participants recruited (mean age: 42 years, range: 18-75; 55 [38%] women), 55 (38%) had airflow obstruction and 84 (58%) had low forced vital capacity (FVC); the mean 6MWD was 463 m (range: 240-723). Respiratory symptoms were common: chronic cough (n = 27, 19%), wheeze (n = 61, 42%) and dyspnoea (modified MRC dyspnoea score 3 or 4: n = 36, 25%). There was poor correlation between FVC or obstruction and 6MWD. Only low body mass index showed consistent association with outcomes on multivariable analyses. Only 19 (13%) participants had a diagnosis of respiratory disease, and 16 (11%) currently received inhalers.CONCLUSION: There was substantial burden of symptoms and physiological impairment in this "cured" population, but poor correlation between objective outcome measures, highlighting deficits in our understanding of PTLD.
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Affiliation(s)
- B W Allwood
- Division of Pulmonology, Department of Medicine, Stellenbosch University & Tygerberg Hospital, Tygerberg, South Africa
| | - M Stolbrink
- Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK
| | - N Baines
- Division of Pulmonology, Department of Medicine, Stellenbosch University & Tygerberg Hospital, Tygerberg, South Africa
| | - E Louw
- Division of Pulmonology, Department of Medicine, Stellenbosch University & Tygerberg Hospital, Tygerberg, South Africa
| | - D T Wademan
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - A Lupton-Smith
- Department of Science and Innovation-National Research Foundation South African Centre for Excellence in Epidemiological Modelling and Analysis (SACEMA), Faculty of Science, Stellenbosch University, Stellenbosch, South Africa
| | - S Nel
- Department of Physical Medicine and Rehabilitation, School of Medicine, Faculty of Health Sciences, University of Namibia, Windhoek, Namibia
| | - D Maree
- Division of Pulmonology, Department of Medicine, Stellenbosch University & Tygerberg Hospital, Tygerberg, South Africa
| | - S Mpagama
- Kibong´oto Infectious Diseases Hospital, Kilimanjaro, Tanzania
| | - M Osman
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - F M Marx
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa, Department of Science and Innovation-National Research Foundation South African Centre for Excellence in Epidemiological Modelling and Analysis (SACEMA), Faculty of Science, Stellenbosch University, Stellenbosch, South Africa
| | - G Hoddinott
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - M Lesosky
- Division of Epidemiology & Biostatistics, School of Public Health & Family Medicine, University of Cape Town, South Africa, Liverpool School of Tropical Medicine, Liverpool, UK
| | - J Rylance
- Lung Health Group, Malawi-Liverpool-Wellcome Trust Clinical Research Programme, Blantyre, Malawi, Liverpool School of Tropical Medicine, Liverpool, UK
| | - K Mortimer
- Liverpool School of Tropical Medicine, Liverpool, UK
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Cernic S, Messer S, Page A, Berman M, Kaul P, Osman M, Nachum E, Parameshwar J, Pettit S, Lewis C, Kydd A, Bhagra S, Goddard M, Quigley R, Baxter J, Jenkins D, Tsui S, Catarino P, Large S. Donation after Circulatory Death Heart Transplantation - The First 5 Years a Successful Leap in Activity. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Zahari Sham SY, Hanif E, Thambiah SC, Samsudin IN, Mohd Noor S, Osman M, Abdullah H, Mustaffa K. High sensitivity C-reactive protein (hsCRP): Its relationship with metabolic syndrome and Framingham Risk Score. Malays J Pathol 2021; 43:33-40. [PMID: 33903303] [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] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
INTRODUCTION Cardiovascular disease (CVD) remains the leading cause of death in Malaysia. Identification of asymptomatic at-risk individuals is often achieved by means of a risk prediction algorithm. Traditional CVD risk factors and their associated algorithms are, however, limited by residual CVD risk. High sensitivity C-reactive protein (hsCRP) has emerged as a novel CVD risk factor. This study aimed to evaluate hsCRP as an adjunct CVD risk marker among the adult Malaysian population by determining its correlation with the Framingham Risk Score (FRS). Comparison analyses were done according to sociodemographic, clinical and laboratory factors and between subjects with and without Metabolic Syndrome (MetS). METHOD This cross-sectional study involved eighty-three (n=83) adults attending a health screening program at Universiti Putra Malaysia (UPM). Demographic data, anthropometric measurements and blood samples for fasting blood glucose (FBG), fasting lipid profile (FSL), glycated haemoglobin (HbA1c) and hsCRP were taken. Respondents were grouped according to FRS and the Joint Interim Statement into 10-year CVD risk categories (low, intermediate and high) and MetS, respectively. RESULTS hsCRP was significantly increased in patients with high body mass index (BMI) (p=0.001), at-risk waist circumference (WC) (p=0.001) and MetS (p=0.009). Spearman's correlation coefficient showed a significant positive correlation between hsCRP level and total FRS score (r=0.26, p<0.05) and HDL-C score (r=0.22, p<0.05). CONCLUSION The significant difference of hsCRP levels across obesity levels and MetS with its modest correlation with FRS scores supported the adjunctive role of hsCRP in CVD risk prediction, most likely capturing the inflammatory pathological aspect and thus partly accounting for the residual CVD risk.
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Affiliation(s)
- S Y Zahari Sham
- Universiti Putra Malaysia, Faculty of Medicine and Health Sciences, Department of Pathology, 43400, Serdang, Selangor, Malaysia.
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Nachum E, Laurence C, Osman M, Hogan J, Baxter J, Quigley R, Messer S, Large S, Kaul P, Forsythe J, Henwood S, Fenton M, Davies B, Berman M, Simmonds J. Pediatric Heart Transplantation Following Donation after Circulatory Death, Distant Procurement and Ex-Situ Perfusion. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.382] [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: 10/21/2022] Open
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48
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49
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Huynh L, Liang K, Osman M, El-Khatib F, Dianatnejad S, Roberts N, Yafi F. 090 Organic Diet and Intermittent Fasting are Associated with Improved Erectile Function. J Sex Med 2021. [DOI: 10.1016/j.jsxm.2021.01.060] [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: 11/26/2022]
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50
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Osman M, El-Khatib F, Dianatnejad S, Nguyen J, Yafi F. 061 Comparative Analysis of Gut Microbiome Composition between Men with Peyronie's Disease and a Matched Cohort: Is there a difference? J Sex Med 2021. [DOI: 10.1016/j.jsxm.2021.01.031] [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: 12/01/2022]
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