The proposed recommendations will allow more women and black patients to be eligible for lung cancer screening.
In a July 7, 2020 press release, the USPSTF recommended annual screening using a low-dose computed tomography scan for patients aged 50-80 years who are at high risk for lung cancer; high risk is defined as having smoked at least 20 pack-years over their lifetime, and still smoke or have quit smoking in the last 15 years.
The current guidelines date back to 2013 and recommend annual screening in patients starting at age 55, and for a history of heavier smoking (30 pack-years instead of 20). A pack-year is a common way of calculating how much a person has smoked and 1 pack-year is equivalent of smoking an average of 20 cigarettes, or 1 pack/day for 1 year.
“Some really good news from the changes to this recommendation is that it will mean more people are eligible for screening, including notably more African Americans and women,” said USPSTF member John B. Wong, MD, in the task force press release. “Making screening for lung cancer available to people who have smoked less over time will help doctors support the health—and potentially save the lives—of more of their African American and female patients.”
Data show that black and female patients tend to smoke fewer cigarettes than white men but also that black patients have a higher risk of lung cancer vs white patients. This strongly suggests that the difference in risk is more apparent at lower levels of smoking intensity.
In the discussion section of its guidelines, the USPSTF estimates, among non-Hispanic blacks, the relative increase in screening would be 105% vs 77% among non-Hispanic whites. Also, there would be an approximately 81% relative increase among men vs a 96% increase in screening among women.
The new recommendation is a Grade B recommendation and USPSTF is accepting public comments on its proposed recommendation until August 3, 2020.
“New evidence provides proof that there are real benefits to starting to screen at a younger age and among people with a lighter smoking history,” said USPSTF member Michael J. Barry, MD, in the same press release. “We can not only save more lives, we can also help people stay healthy longer.”