Evaluation of clinical prediction models (part 3): calculating the sample size required for an external validation study
External validation studies evaluate the performance of one or more prediction models (eg, developed previously…
Category: BMJ
Why I . . . lead a Celtic rock band
As the music of his bagpipes resounds through the excited crowd, GP Kieron Cooney looks…
Charities step in to tackle digital divide, amid concerns over health inequalities
Across the UK many services have become “digital first” since the covid-19 pandemic began, and…
Measles: Birmingham outbreak declared a national incident and likely to spread
Outbreaks of measles will spread to other towns and cities in the UK without urgent…
Physician associates: Doctors raise alarm over legislation to allow GMC regulation
The BMA has appealed to MPs to carefully consider “ill thought through plans” that would…
Chris Bulstrode: volunteered for the army as a trauma surgeon in his 50s
bmj;384/jan19_7/q133/FAF1faChris Bulstrode’s wish to join the army elicited loud laughter in the recruiting office. He…
Maternity services at South Tees hospitals must improve, says regulator
The Care Quality Commission (CQC) has demanded improvements to maternity services run by South Tees…
Disarmament is vital for climate justice and health
In December 2023, the 28th UN climate summit (COP28) set a landmark with the adoption…
The European healthcare workforce crisis: how bad is it?
“There is no health without a health workforce,” says Hans Kluge, regional director for Europe…
The original empathy machine: five books to illuminate the patient experience
To be alive, writes Susan Sontag, is to hold “dual citizenship, in the kingdom of…
Fears over halt to NHS building projects in Scotland
A freeze on new NHS building projects is being imposed in Scotland for at least…
Over half of surgeons struggle to find time to operate, college warns
Over half of all surgeons and an even higher proportion of surgical trainees are struggling…
Why it makes more sense to wish people a Stoical rather than a Happy New Year
Traditionally we wish each other a Happy New Year as each year begins, but who…
Technological determinants of health: a looming apocalypse
Perhaps nobody predicted the damaging dysfunction of a health service and the collapse of society…
Use of nitrogen in US execution may constitute torture, warns human rights agency
The UN human rights office has called on authorities in the US state of Alabama…
Continuity of care in general practice: avoid the blunt sledgehammers of national policy
Reviews of the importance of general practitioner continuity are useful.1 But it is unhelpful that…
Systems thinking to improve healthcare
I hope policy makers will listen to voices like Morgan’s when they say that improving…
Tom Nolan’s research reviews—18 January 2024
Real world zoster vaccine effectivenessIn September, the UK started phasing out use of the live…
NHS temporary staffing bill “skyrockets” to {pound}10.4bn
The annual cost of using agency and bank staff to provide healthcare in the NHS…
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Sixty seconds on . . . energy drinks
What’s the buzz?A review of the latest evidence on the health effects of consuming energy…
Computed tomography, malignancies . . . and other stories
Scans in childrenA multinational European study of a million young people who had undergone at…
Bradycardia, headache, and vomiting in a child after a fall
A 10 year old child presented with a history of falling from a height of…
Implementing a hospital sustainability quality improvement project: challenges and best practices for trainees
Climate change affects human health, but substantial greenhouse gas emissions from the global healthcare sector…
Homegrown parasites
This is a contrast enhanced abdominopelvic computed tomography scan of a woman in her 30s…
We must consider ageing and frailty when sharing decision making in intensive care
Decisions to admit older, frail patients to critical care must pay particular attention to quality…
Maisara Al Rayyes: doctor and Chevening scholar, who was committed to improving health in Gaza
bmj;384/jan18_2/q123/FAF1faCredit: British Consulate General, JerusalemPalestinian doctor Maisara Al Rayyes was an inspirational young health leader…
NHS England cuts national GP retention schemes in favour of local “support”
NHS England has announced that two general practice retention schemes will end in March, in…
Peter J Enoch
bmj;384/jan17_10/q72/FAF1faPeter J Enoch was attracted to Littlewick Medical Centre, Ilkeston, by the community hospitals (general,…
All cause and cause specific mortality in obsessive-compulsive disorder: nationwide matched cohort and sibling cohort study
AbstractObjectiveTo estimate the risk of all cause and cause specific mortality in people with obsessive-compulsive…
Acute rehabilitation following traumatic anterior shoulder dislocation (ARTISAN): pragmatic, multicentre, randomised controlled trial
AbstractObjectiveTo assess the effects of an additional programme of physiotherapy in adults with a first-time…
Acute rehabilitation after traumatic shoulder dislocation
Most anterior shoulder dislocations occur for the first time related to sports (59%1 to 74%2),…
Therapeutic advances in rheumatoid arthritis
AbstractRheumatoid arthritis (RA) is one of the most common immune mediated inflammatory diseases. People with…
Painless plaques on the lower back
A man in his 40s presented with painless zosteriform erythematous plaques covered with white scales…
SARS-CoV-2 positivity in offspring and timing of mother-to-child transmission: living systematic review and meta-analysis
AbstractObjectivesTo assess the rates of SARS-CoV-2 positivity in babies born to mothers with SARS-CoV-2 infection,…
Scarlett McNally: My trust has shown how doctors’ assistants can help support clinicians
There are multiple problems in healthcare right now. Many people found that their health deteriorated…
How to solve the workforce crisis: listen to what health professionals want from their careers
How is the medical profession faring in terms of gender balance?The workforce as a whole…
Update to living systematic review on SARS-CoV-2 positivity in offspring and timing of mother-to-child transmission
This living systematic review by Allotey and colleagues (BMJ 2024; 384:067696) has been updated. For the…
NICE decisions must reflect societal values in relevant and contemporary policies
Michaels summarises the problems facing organisations developing guidelines.1 The National Institute for Health and Care…
Junior doctors’ strike: Health secretary urges BMA to “show it is serious” about pay deal
The health and social care secretary, Victoria Atkins, has called on BMA officials to spell…
Author’s reply to Sundar
Sundar is correct in stating that in a taxpayer funded system the National Institute for…
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Code sharing and artificial intelligence can help decolonise public health modelling
Steps towards democratisation of efforts in global health and capacity strengthening in low and middle…
Improving the transparency and reliability of observational studies through registration
From the use of booster doses against covid-191 to approval of novel cancer therapies,2 health…
Helen Salisbury: Other presences in the consulting room
It isn’t unusual for a third person to be in the room when I’m consulting….
Rammya Mathew: We risk creating a lost tribe of GPs
For the past 10 years the general practice workforce has been flooded with locum GPs….
US states want to buy cheap drugs from Canada—and the FDA says yes after three year delay
On 5 January the US Food and Drug Administration approved Florida’s plan to import drugs…
Why learning how to swallow pills is good for patients, parents, and the planet
What you need to knowPills are likely to have a reduced environmental impact compared with…
Perinatal depression and its health impact
What is perinatal depression?Perinatal depression is considered a specifier of major depressive disorder with onset…
Gaza: WHO describes “sickening scenes” in hospital as Israeli military intensifies activity
The World Health Organization has described the harrowing scenes unfolding at Al Aqsa Hospital—the only…
Should the NHS pay AI’s PubMed bill?
Stokel-Walker mentions a study published in the Journal of the American Medical Association in which…
UK shows what not to do to tackle health inequalities, says Marmot
More than a million people outside the wealthiest areas of England lived shorter lives than…