Navigation Links
Smokers who quit before age 40 have lifespan almost as long as people who never smoked
Date:1/24/2013

TORONTO, Jan. 23, 2013Smokers who quit when they are young adults can live almost as long as people who never smoked, groundbreaking new research has found.

Smoking cuts at least 10 years off a person's lifespan. But a comprehensive analysis of health and death records in the United States found that people who quit smoking before they turn 40 regain almost all of those lost years.

"Quitting smoking before age 40, and preferably well before 40, gives back almost all of the decade of lost life from continued smoking," said Dr. Prabhat Jha, head of the Centre for Global Health Research at St. Michael's Hospital and a professor in the Dalla Lana School of Public Health at the University of Toronto.

"That's not to say, however, that it is safe to smoke until you are 40 and then stop," said Dr. Jha. "Former smokers still have a greater risk of dying sooner than people who never smoked. But the risk is small compared to the huge risk for those who continue to smoke."

His findings were published today in the New England Journal of Medicine.

Dr. Jha's team found that people who quit smoking between ages 35 and 44 gained about nine years and those who quit between ages 45-54 and 55-64 gained six and four years of life, respectively.

The study is unique as it examines the risks of smoking and the benefits of stopping among a representative sample of Americans. Earlier studies had examined specific groups such as nurses or volunteers who are healthier than average Americans overall. Importantly, the study is among the first to document the generation of women who started smoking when they were young and kept smoking through their adult lives.

"Women who smoke like men, die like men," Dr. Jha said. For women, the risks of dying from smoking-related causes are 50 per cent greater than found in the studies conducted in the 1980s.

Women and men who smoke both lost a decade of life. Current male or female smokers ages 25-79 had a mortality rate three times higher than people who had never smoked. Never smokers were about twice more likely to live to age 80 than were smokers.

This study adds to recent evidence from Britain, Japan and the United States that smoking risks involve about a decade of life lost worldwide. This includes a review of 50 years of smoking mortality in the United States published in the same issue of the New England Journal of Medicine and led by Dr. Michael J. Thun and other researchers from the American Cancer Society.

While about 40 million Americans and 4 million Canadians smoke, most of the world's estimated 1.3 billion smokers live in low- and middle-income countries. Worldwide about 30 million young adults begin smoking each year (about half of all young men and 10 per cent of young women) and most do not stop.

In many high-income countries more than half of people who ever smoked have quit, cessation remains uncommon in most low- and middle-income people. On current trends, smoking will kill about 1 billion people in the 21st century as opposed to 'only' 100 million in the 20th century.

Professor Amartya Sen, the noted Harvard University economist who won the 1998 Nobel Prize in economics, said "the inability to develop an appropriate public policy about smoking has been one of the bigger failures of public action in India, China and most other developing countries, in contrast to strong tobacco control in most western countries.

"This study brings out how great the threat actually is, and shows that risks of death from smoking are even larger than previously thought," said Professor Sen, who was not involved in the study. "The result is of great global significance."

Dr. Jha noted that smoking rates in the United States, China and India would decline much faster if their governments levied high taxes on tobacco, as seen in Canada and France. Taxation is the single most effective step to get adults to quit and to prevent children from starting, he said.

Dr. Jha's research used data from the U.S. National Health Interview Survey in which a representative cross-section of the population is surveyed every year about a broad range of health topics. More than 200,000 survey participants were linked to the National Death Index, which includes death certificate information for all Americans since 1986. The researchers related about deaths of about 16,000 people to their past reported smoking.

Dr. Jha advises various governments around the world on disease control strategies. He is the principal investigator of the Million Death Study in India, one of the largest studies of premature deaths in the world.


'/>"/>
Contact: Leslie Shepherd
shepherdl@smh.ca
416-864-6094
St. Michael's Hospital
Source:Eurekalert

Related medicine news :

1. Longtime Smokers Lose a Decade of Life
2. Cancer Society Suggests CT Lung Screening for Heavy Smokers
3. Millions of Nonsmokers Exposed to Smoke From Neighbors Apartments: Report
4. Back Pain May Ease for Smokers Who Quit: Study
5. Heavy Smokers Cut Back the Most When Cigarette Taxes Rise: Study
6. Smokers, Nonsmokers Alike Urged to Learn About Lung Cancer
7. Adolescents with low status among peers are more likely to become adult smokers
8. Kicking the habit -- new research examines the barriers to quitting smoking for smokers with asthma
9. Gruesome Cigarette Pack Images Sway Smokers, Study Finds
10. Many Smokers Light Up With Kids in Car: Study
11. Scientists Find Gene Differences in Nonsmokers With Lung Cancer
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/2/2016)... ... December 02, 2016 , ... On Dec. 2, 2016, ... Rock Hotel San Diego honoring the 2016 MPN Heroes—eight individuals who have made a ... going above and beyond the standard of care, demonstrating leadership within the MPN community ...
(Date:12/2/2016)... ... 2016 , ... FlexiSpot, a trusted name in sit-stand solutions ... for all of the company’s desktop riser products. A simple application form and ... FlexiSpot’s unique desktop risers use an advanced dual gas spring hovering system to ...
(Date:12/2/2016)... ... 02, 2016 , ... With the number of pain management programs available for ... find the one that works for them. When an inventor from Suisun City, Calif., ... and decided to share it with others. , He developed a prototype for PRO ...
(Date:12/2/2016)... (PRWEB) , ... December 02, 2016 , ... ... edition of "Cardiovascular Health" in USA Today, which covers the innovative treatments, therapeutic ... health while maintaining fulfilling lives. “We are prolonging life 6 years in the ...
(Date:12/2/2016)... ... December 02, 2016 , ... Sourced from the Isbre Springs beneath the 5,000 ... unmatched natural purity of just 6 ppm TDS (Total Dissolved Solids) in addition to ... been available in several ShopRite and FoodTown stores in NJ and received rave comments ...
Breaking Medicine News(10 mins):
(Date:12/2/2016)... -- Maxor National Pharmacy Services, LLC ("Maxor"), today announced that it ... combination of Texas -based Maxor Specialty / ... together both company,s clinical expertise and high-touch patient service models ... pharmacy. About Maxor ... , , ...
(Date:12/2/2016)... WOONSOCKET, R.I. , Dec. 2, 2016 ... hold its annual Analyst Day in New York City on Thursday, December ... the CVS Health leadership team will provide an in-depth ... and enhance shareholder value. The company will also discuss ... audio and video webcast of the event will be ...
(Date:12/2/2016)... 2, 2016 Orthopedic Implants (Including Spinal ... Expected to Gain a Significant Market Share Owing to a ... ... According to a new report by ... Sterile Packaging: Clamshell Product Type Segment Projected to Witness a ...
Breaking Medicine Technology: