A major new study has revealed a serious flaw in how lung cancer is currently detected in the U.S. Under today’s guidelines, nearly two-thirds of lung cancer patients would not have qualified for early screening — even though it could have saved their lives.
This research raises urgent questions about whether the current rules for lung cancer screening are outdated and too narrow, especially as younger and non-smoking patients are increasingly being diagnosed.
Most Lung Cancer Patients Didn’t Qualify for Screening
The current screening guidelines, set by the U.S. Preventive Services Task Force (USPSTF), recommend annual low-dose CT chest scans for people:
- Aged 50 to 80
- With a 20 pack-year smoking history (1 pack a day for 20 years, or 2 packs for 10 years)
- Who currently smoke or quit within the last 15 years
But according to the new study, published Nov. 20 in JAMA Network Open, these rules are too restrictive.
Researchers at Northwestern Medicine tracked nearly 1,000 lung cancer patients and found that only 35% would have met the criteria for screening. That means 65% of people with lung cancer would have been missed — no scans, no early detection, and no chance to catch the disease before it reached an advanced stage.
Carla Tapia’s Story: A Missed Opportunity
Take the example of Carla Tapia, a 38-year-old mother of three from Maryland. She smoked lightly in her teens but had quit by the age of 18. Despite this, she developed lung cancer at 33 and was diagnosed with stage 4, inoperable cancer by 2020.
Tapia went through multiple failed treatments before receiving a life-saving double lung transplant in 2024. She believes that if the guidelines had been broader, her cancer could have been caught earlier.
“If we could expand the screening guidelines, I believe more lung cancers could be caught at earlier stages, and more lives would be saved,” Tapia said in a statement.
Experts Push for Universal Lung Screening
Dr. Ankit Bharat, chief of thoracic surgery at Northwestern Medicine and senior author of the study, says lung cancer screening needs to follow the same model used for breast and colon cancer — where screening is based on age, not risk factors alone.
“We moved to universal age-based screening for breast and colon cancer with tremendous success. We need to do the same for lung cancer,” he said.
He’s advocating for universal screening between ages 40 and 85, regardless of smoking history, which could:
- Catch tumors earlier
- Be cost-effective
- Reduce health disparities
- Monitor lung, heart, and bone health in one scan
Lung Cancer Doesn’t Just Affect Smokers
Contrary to common belief, lung cancer can develop in people who never smoked or who smoked lightly for a short time. According to the study:
- Women and never-smokers made up a large part of those who would have been excluded under current guidelines.
- Around 80% of lung cancers are diagnosed at later stages, when treatment becomes more difficult.
COVID-19 and Environmental Risks Add New Dangers
Post-COVID lung damage is also becoming a major concern. Bharat warned that lung scarring and fibrosis are becoming more common, especially in younger people with repeated infections or exposure to airborne pollutants.
The following groups are now considered high-risk for lung issues, even if they don’t meet current criteria:
- COVID-19 survivors with lingering breathing problems
- People exposed to wildfire smoke, radon, or industrial pollutants
- Individuals with family histories of lung disease
- People exposed to secondhand smoke, vaping, or marijuana smoke
- Asian women and other ethnic groups with higher rates of lung conditions
- Anyone seeking a baseline lung health check-up
A Call for Change in Lung Health Screening
Dr. Scott Budinger, co-author of the study, says broadening screening can help catch not just cancer, but a range of lung conditions like:
- Interstitial lung disease
- Pulmonary fibrosis
- Early-stage lung cancer
“We’re seeing younger patients with respiratory problems from vaping, environmental exposures and COVID-19 who would never qualify for traditional screening,” he said.
