With lung cancer, quitters do better than smokers
|Author: By Kerry Grens|
Date: Thursday, October 11th, 2012
|Return to Archive|
(Reuters Health) - Younger people with advanced lung cancer who quit smoking more than a year before their diagnosis survive longer than those who continue smoking, according to a new study.
It's known that people who never smoked are more likely to survive the disease than those who light up. But whether former smokers do any better than current ones has been less clear.
"The findings do suggest there is some benefit to quitting smoking," said Amy Ferketich of Ohio State University College of Public Health in Columbus, who worked on the study.
However, quitters who were older or who had earlier stages of lung cancer did not have an advantage over smokers, she and her colleagues report in the journal Cancer.
Ferketich's group used medical records from 4,200 lung cancer patients treated at eight cancer centers around the country. Patients who never smoked were more likely to survive the less advanced cancers - stage 1, 2 or 3 - than were former or current smokers, the researchers found.
Among smokers with stage 1 or 2 lung cancer, for instance, 72 percent survived at least two years, compared to 93 percent of the never-smokers and 76 percent of people who'd kicked the habit a year or more before diagnosis.
Only 15 percent of smokers with stage 4 disease survived two years, while 40 percent of never-smokers and 20 percent of former smokers did.
After adjusting the numbers for factors such as age, race and radiation treatment, the researchers determined that quitters were just as likely to die from the early-stage cancers as were current smokers.
But for advanced cancers, people under 85 who had stopped smoking more than a year before their diagnosis survived longer than smokers. Forty-five-year-old former smokers, for instance, were 30 percent less likely to die from stage 4 lung cancer within two years than were current smokers.
Smoking is the number one risk factor for developing lung cancer, and studies have shown that people who quit are less likely to get it than current smokers.
It's not clear why smokers already diagnosed with lung cancer fare worse than non-smokers, Ferketich said.
"In general, never smokers are healthier individuals, so they tend to, in a lot of trials, have better outcomes with disease than people who continue to smoke," she said. "Just the continued exposure to tobacco might make the disease progress more quickly in smokers compared to never-smokers who don't have that exposure."
Ferketich said it's also possible that smoking could influence the biology of the cancer, and perhaps smokers get tumors that never-smokers are less likely to develop. She added that it's never too late to quit.
Cancer, online September 28, 2012.
- All Categories
- Academic Outreach
- Continuing & Professional Development
- Distance Learning
- Summer Sessions
- Winter Term
- Career & Workforce Development
- Lifelong Learning
- Society for Lifelong Learning
- WKU On Demand
- Study Away
- Faculty-Led Study Abroad
- Center for Faculty Development
- Cohort Programs
- Dual Credit
- Conferencing & Catering
- All Categories
- March 2016 ICYMI
- CHHS October 2011 E-Newsletter
- CHHS November 2011 E-Newsletter
- CHHS December 2011 E-Newsletter
- CHHS January 2012 E-Newsletter
- CHHS February 2012 E-Newsletter
- CHHS March 2012 E-Newsletter
- CHHS April 2012 E-Newsletter
- CHHS May 2012 E-Newsletter
- CHHS June 2012 E-Newsletter
- CHHS July 2012 E-Newsletter
- CHHS August 2012 E-Newsletter
- CHHS September 2012 E-Newsletter
- CHHS October 2012 E-Newsletter
- April 2016 ICYMI
- CHHS November 2012 E-Newsletter
- CHHS December 2012 E-Newsletter
- CHHS January 2013 E-Newsletter
- CHHS February 2013 E-Newsletter
- CHHS March 2013 E-Newsletter
- CHHS April 2013 E-Newsletter
- CHHS May/June 2013 E-Newsletter
- CHHS July 2013 E-Newsletter
- Archived CHHS News
- CHHS October 2013 E-Newsletter
- CHHS November 2013 E-Newsletter
- CHHS December 2013 E-Newsletter
- CHHS February 2014 E-Newsletter
- CHHS November 2014 E-Newsletter
- CHHS May 2014 E-Newsletter
- CHHS April 2014 E-Newsletter
- CHHS June 2014 E-Newsletter
- CHHS July 2014 E-Newsletter
- CHHS December 2014 E-Newsletter
- CHHS August 2014 E-Newsletter
- CHHS September 2014 E-Newsletter
- CHHS October 2014 E-Newsletter
- CHHS January 2015 E-Newsletter
- CHHS February 2015 E-Newsletter
- CHHS May 2015 E-Newsletter
- CHHS July 2015 E-Newsletter
- CHHS August 2015 E-Newsletter
- CHHS September 2015 E-Newsletter
- CHHS November 2015 E-Newsletter
- CHHS October 2015 E-Newsletter
- December 2015 ICYMI
- January 2016 ICYMI
- February 2016 ICYMI
- CHHS September 2011 E-Newsletter
- CHHS August 2011 E-Newsletter
- CHHS July 2011 E-Newsletter
- CHHS June 2011 E-Newsletter
- CHHS May 2011 E-Newsletter
Public Relations Capstone Projects Earn Top Awards From PRSA Nashville for 4th Year in a Row
Campaign Set to Raise Funds for Restoration of De Havilland 4 (DH-4) Airframe
download Adobe Acrobat Reader.
Note: documents in Excel format (XLS) require Microsoft Viewer,
Note: documents in Word format (DOC) require Microsoft Viewer,
Note: documents in Powerpoint format (PPT) require Microsoft Viewer,
Note: documents in Quicktime Movie format [MOV] require Apple Quicktime,