From outer space? Sask. farmers baffled after discovering strange wreckage in field
A family of fifth generation farmers from Ituna, Sask. are trying to find answers after discovering several strange objects lying on their land.
Racial bias built into a common medical test for lung function is likely leading to fewer Black patients getting care for breathing problems, a study published Thursday suggests.
As many as 40% more Black male patients in the study might have been diagnosed with breathing problems if current diagnosis-assisting computer software was changed, the study said.
Doctors have long discussed the potential problems caused by race-based assumptions that are built into diagnostic software. This study, published in JAMA Network Open, offers one of the first real-world examples of how the the issue may affect diagnosis and care for lung patients, said Dr. Darshali Vyas, a pulmonary care doctor at Massachusetts General Hospital.
The results are "exciting" to see published but it's also "what we'd expect" from setting aside race-based calculations, said Vyas, who was an author of an influential 2020 New England Journal of Medicine article that catalogued examples of how race-based assumptions are used in making doctors' decisions about patient care.
For centuries, some doctors and others have held beliefs that there are natural racial differences in health, including one that Black people's lungs were innately worse than those of white people. That assumption ended up in modern guidelines and algorithms for assessing risk and deciding on further care. Test results were adjusted to account for -- or "correct" for -- a patient's race or ethnicity.
One example beyond lung function is a heart failure risk-scoring system that categorizes Black patients as being at lower risk and less likely to need referral for special cardiac care. Another is an equation used in determining kidney function that creates estimates of higher kidney function in Black patients.
The new study focused on a test to determine how much and how quickly a person can inhale and exhale. It's often done using a spirometer -- a device with a mouthpiece connected to a small machine.
After the test, doctors get a report that has been run through computer software and scores the patient's ability breathe. It helps indicate whether a patient has restrictions and needs further testing or care for things like asthma, chronic obstructive pulmonary disorder or lung scarring due to air pollutant exposure.
Algorithms that adjust for race raise the threshold for diagnosing a problem in Black patients and may make them less likely to get started on certain medications or to be referred for medical procedures or even lung transplants, Vyas said.
While physicians also look at symptoms, lab work, X-rays and family histories of breathing problems, the pulmonary function testing can be an important part of diagnoses, "especially when patients are borderline," said Dr. Albert Rizzo, the chief medical officer at the American Lung Association.
The new study looked at more than 2,700 Black men and 5,700 white men tested by University of Pennsylvania Health System doctors between 2010 and 2020. The researchers looked at spirometry and lung volume measurements and assessed how many were deemed to have breathing impairments under the race-based algorithm as compared to under a new algorithm.
Researchers concluded there would be nearly 400 additional cases of lung obstruction or impairment in Black men with the new algorithm.
Earlier this year, the American Thoracic Society, which represents lung-care doctors, issued a statement recommending replacement of race-focused adjustments. But the organization also put a call out for more research, including into the best way to modify software and whether making a change might inadvertently lead to overdiagnosis of lung problems in some patients.
Vyas noted some other algorithms have already been changed to drop race-based assumptions, including one for pregnant women that predicts risks of vaginal delivery if the mom previously had a cesarean section.
Changing the lung-testing algorithm may take longer, Vyas said, especially if different hospitals use different versions of race-adjusting procedures and software.
------
The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute's Science and Educational Media Group. The AP is solely responsible for all content.
A family of fifth generation farmers from Ituna, Sask. are trying to find answers after discovering several strange objects lying on their land.
The National Post is reporting that Rex Murphy, the pundit and columnist who hosted a national call-in radio show for decades, has died.
Another suspect is in custody in connection with the gold heist at Toronto Pearson International Airport last year, police say.
Careful attention to government statements and legislation is required to get a handle on the level of risk British Columbians’ information is under, as investigators probe multiple breaches under a continued barrage of attacks.
A southwestern Ontario woman has received an $8,400 bill from a hospital in Windsor, Ont., after she refused to put her mother in a nursing home she hated -- and she says she has no intention of paying it.
A Conservative government led by Pierre Poilievre would not legislate on, nor use the notwithstanding clause, on abortion, his office says, as anti-abortion protesters gather on Parliament Hill.
Hailey and Justin Bieber are going to be parents. The couple announced the news on Thursday on Instagram, both sharing a video that showcases Hailey Bieber's growing belly.
Studies have shown that ultraprocessed foods can have a detrimental impact on health. But 30 years of research show they don’t all have the same impact.
The Oscar-winning team behind the nearly US$6 billion blockbuster 'Lord of the Rings' and 'The Hobbit' trilogies is reuniting to produce two new films.
A Listowel, Ont. man, drafted by the Hamilton Tigercats last week, is also getting looks from the NFL, despite only playing 27 games of football in his life.
A small Ajax dessert shop that recently received a glowing review from celebrity food critic Keith Lee is being forced to move after a zoning complaint was made following the social media influencer’s visit last month.
The Canada Science and Technology Museum is inviting visitors to explore their poop. A new exhibition opens at the Ottawa museum on Friday called, 'Oh Crap! Rethinking human waste.'
The Regina Police Service says it is the first in Saskatchewan and possibly Canada to implement new technology in its detention facility that will offer real-time monitoring of detainees’ vital health metrics.
The stakes have been set for a bet between Vancouver and Edmonton's mayors on who will win Round 2 of the Stanley Cup playoffs.
A grieving mother is hosting a helmet drive in the hopes of protecting children on Manitoba First Nations from a similar tragedy that killed her daughter.
A chicken farmer near Mattawa made an 'eggstraordinary' find Friday morning when she discovered one of her hens laid an egg close to three times the size of an average large chicken egg.
A P.E.I. lighthouse and a New Brunswick river are being honoured in a Canada Post series.
An Ontario man says he paid more than $7,700 for a luxury villa he found on a popular travel website -- but the listing was fake.