Talk Evidence

Covid vaccine safety, Methenamine hippurate, and intersectionality

In this episode of Talk Evidence, Helen Macdonald, the BMJ’s research integrity editor is joined by Joe Ross, US research editor, and Juan Franco, editor in chief of BMJEBM, to talk about all things evidence. Joe gives us an update about covid, including new research on safety of the vaccine Association between covid-19 vaccination, SARS-CoV-2 infection, and risk of immune mediated neurological events https://www.bmj.com/content/376/bmj-2021-068373 Juan updates us on a potential new prophylactic for recurrent UTIs, Methenamine hippurate, which could be an alternative to antibiotics. Alternative to prophylactic antibiotics for the treatment of recurrent urinary tract infections in women https://www.bmj.com/content/376/bmj-2021-0068229 Helen tells us about some research which evaluates the way in which intersecting identities combine to make students experience of medical school more difficult. Marginalized identities, mistreatment, discrimination, and burnout among US medical students

https://www.bmj.com/content/376/bmj-2021-065984

Talk Evidence - isolation periods, openness, and environmental impacts

In the first Talk Evidence of 2022, we'll be asking about the evidence for isolation - now that isolation periods are being reduced, or even stopped in the event of a negative lateral flow test, we'll find out what data that's based on, and if it's appropriate. Vaccinations and treatments for covid-19 have been the one major success story of the pandemic, but that doesn't mean we should abandon the principles of openness and transparency when it comes to scrutinising the data - we'll hear what access to the data which underlies regulatory approval could do now. Finally, the impacts of climate change were set out in a WHO report in November last year - and recent weather seems to underline their conclusions. We'll discuss new evidence linking the environment and health, and ask what clinicians can do with that. Reading list: Mitigating isolation: The use of rapid antigen testing to reduce the impact of self-isolation periods https://www.medrxiv.org/content/10.1101/2021.12.23.21268326v1.full.pdf Covid-19 vaccines and treatments: we must have raw data, now https://www.bmj.com/content/376/bmj.o102 WHO report: Climate change and health https://www.who.int/news-room/fact-sheets/detail/climate-change-and-health Ambient heat and risks of emergency department visits among adults in the United States: time stratified case crossover study https://www.bmj.com/content/375/bmj-2021-065653 Residential exposure to transportation noise in Denmark and incidence of dementia: national cohort study https://www.bmj.com/content/374/bmj.n1954 Long term exposure to low level air pollution and mortality in eight European cohorts within the ELAPSE project: pooled analysis

https://www.bmj.com/content/374/bmj.n1904

Talking Christmas Evidence 2021

The BMJ has special criteria for considering Christmas research: first it should make you laugh, and then it should make you think. In this festive episode of the Talk Evidence podcast, our regular panel of Helen Macdonald and Joe Ross are again joined by Juan Franco, editor in chief of BMJ Evidence Based Medicine.

They’ll give you a peek into what makes for good Christmas research, and why what may seem silly on the surface has a deeper meaning.

Talk Evidence - Bones, nutrition, pain relief, and overdiagnosis.

In this month’s Talk evidence, we’re going back to our roots and avoiding covid - so sit back and listen to Helen Macdonald and Joe Ross discuss a new nutrition study to prevent fractures in older adults by eating dairy, and a meta-analysis which helps you choose pain relief medications for management of osteoarthritis. We’ll hear from Steven Woloshin about the virtual Overdiagnosis conference, and why he’s so excited about a new category in the National Library of Medicine. Finally, we have a study on urinary retention and risk of cancer that has been over 25 years in the making. Reading list; Effect of dietary sources of calcium and protein on hip fractures and falls in older adults in residential care https://www.bmj.com/content/375/bmj.n2364 Effectiveness and safety of non-steroidal anti-inflammatory drugs and opioid treatment for knee and hip osteoarthritis https://www.bmj.com/content/375/bmj.n2321 To access the webinars Steven was talking about. https://www.preventingoverdiagnosis.net/ Acute urinary retention and risk of cancer https://www.bmj.com/content/375/bmj.n2305

Podcast listener survey. Please let us know how we could improve the podcasts for you, and your specialty - https://linktr.ee/BMJsurvey

Talk Evidence - testing for respiratory tract infections, cannabis for pain, & covid outcomes

This week our regular panelists, Helen Macdonald and Joe Ross, are joined by Juan Franco, editor in chief of BMJ Evidence Based Medicine - to take a primary care focussed look at what's been happening in the world of evidence. On this week’s episode. As kids go back to school, winter bugs surge and pressure mounts on health services we look at two trials which aimed to use reduce antibiotic prescribing for respiratory tract infections in nursing homes and primary care Juan brings us an update on prescribing medicinal cannabis for pain, based on a recent BMJ rapid recommendation article and linked systematic review and meta-analysis And finally, in covid news, how likely are you to be admitted or die from covid after one or two SARS-CoV 2 vaccinations? Reading list Effect of C reactive protein point-of-care testing on antibiotic prescribing for lower respiratory tract infections in nursing home residents - https://www.bmj.com/content/374/bmj.n2198 Procalcitonin and lung ultrasonography point-of-care testing to determine antibiotic prescription in patients with lower respiratory tract infection in primary care - https://www.bmj.com/content/374/bmj.n2132 Medical cannabis or cannabinoids for chronic pain - https://www.bmj.com/content/374/bmj.n2040

Risk prediction of covid-19 related death and hospital admission in adults after covid-19 vaccination - https://www.bmj.com/content/374/bmj.n2244

Talk Evidence - real world vaccine data, GP records and CVD

In this month's Talk Evidence, Helen Macdonald and Joe Ross are back with a wry look at the world of Evidence Based Medicine. They give us a round up of real world data emerging to address various uncertainties about vaccinations against covid Helen has an update on NHS Digital’s project to extract GP coding for planning of healthcare and research, and talks to Natalie Banner from Understanding Patient Data, to find out what the public really cares about. Finally, as routine care must go on a clinical review on cardiovascular disease in older adults introduces us to geroscience. Reading list Vaccines; Effectiveness of BNT162b2 and mRNA-1273 covid-19 vaccines against symptomatic SARS-CoV-2 infection and severe covid-19 outcomes in Ontario, Canada: test negative design study - https://doi.org/10.1136/bmj.n1943 Effectiveness of the CoronaVac vaccine in older adults during a gamma variant associated epidemic of covid-19 in Brazil: test negative case-control study - https://doi.org/10.1136/bmj.n2015 Associations of BNT162b2 vaccination with SARS-CoV-2 infection and hospital admission and death with covid-19 in nursing homes and healthcare workers in Catalonia: prospective cohort study https://doi.org/10.1136/bmj.n1868 Risk of thrombocytopenia and thromboembolism after covid-19 vaccination and SARS-CoV-2 positive testing: self-controlled case series study - https://doi.org/10.1136/bmj.n1931 CVD

Cardiovascular care of older adults - https://doi.org/10.1136/bmj.n1593

Talk Evidence - Freedom Day

The 19th of July in the UK saw the relaxation of covid rules that have been in place for 18 months - social distancing requirements in venues, mask wearing in public will no longer be legally mandated. There are a lot of questions about what this will mean for the pandemic, and in this episode of Talk Evidence Helen MacDonald, Joe Ross and Duncan Jarvies are joined by Iain Buchan, professor of public health in Liverpool, who has been involved in 2 key studies on covid transmission. Firstly, lateral flow tests - the big questions has been how well do they work in the wild - and how well do they have to work, to be useful in test trace and isolate? Iain tells us about new research into the innova test. Secondly, events - the football has shown that events can still be a big source of transmission, and the UK government put in place a number of trial events, all carefully monitored by public health researchers - Iain tells us about one nightclub test in Liverpool, and what we can glean from it. Reading list; Performance of the Innova SARS-CoV-2 antigen rapid lateral flow test in the Liverpool asymptomatic testing pilot: population based cohort study https://www.bmj.com/content/374/bmj.n1637 The UK government's events programme https://www.gov.uk/government/publications/events-research-programme-phase-i-findings/events-research-programme-phase-i-findings#findings https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/979461/S1195_Science_framework_for_opening_up_group_events.pdf Effect of the covid-19 pandemic in 2020 on life expectancy across populations in the USA and other high income countries: simulations of provisional mortality data https://www.bmj.com/content/373/bmj.n1343 Optimizing Therapy to Prevent Avoidable Hospital Admissions in Multimorbid Older Adults (OPERAM): cluster randomised controlled trial https://www.bmj.com/content/374/bmj.n1585 Efficacy, acceptability, and safety of muscle relaxants for adults with non-specific low back pain: systematic review and meta-analysis

https://www.bmj.com/content/374/bmj.n1446

Talk Evidence - GP data, excess mortality and FDA approval

In this Talk Evidence, Helen Macdonald, Joe Ross and Duncan Jarvies discuss what's going on in the world of EBM. Firstly, a while ago on the podcast, we concluded that excess mortality would be the best way to measure the impact of the pandemic - and now a new paper looks at different country's excess mortalitites over the past year. We're joined by author Nazrul Islam Physician-Epidemiologist at the University of Oxford (and a research editor for The BMJ) to talk about why comparisons may still not be sensible. Read the full research here - https://www.bmj.com/content/373/bmj.n1137 The Delta variant is dominating headlines, and infections in the UK now - but until recently the Alpha one was ascendent, and new research has helped characterise how the mortality rate of that variant differed from previous viruses. We discuss how that research was done. Read the full research - https://www.bmj.com/content/372/bmj.n579 GP data in the UK - the planned cut-off for granting access to your GP data for researchers has been extended, but there are still a lot of questions remaining. Helen has tried to find out some basic answers, and is still confused. Finally, the FDA has approved a new drug for treatment of dementia - and researchers (and the FDA's own panel of experts) are up in arms. Joe Ross tells us why he thinks the decision was the wrong one, and why patients may be harmed because of it.

https://edition.cnn.com/2021/06/17/opinions/biogen-alzheimers-drug-opinion-ramachandra-ross/index.html