Mon, Apr 24, 2017 | updated 09:08 AM IST

Smoking: Sooner you quit the longer you'll live!

Updated: Nov 30, 2016 12:24 IST      
Smoking: Sooner you quit the longer you'll live!

Washington D.C. [USA], Nov.30 (ANI): Planning to quit smoking? Then do it before you turn 70.

A new study published in the American Journal of Preventive Medicine, found that people aged 70 or older currently smoking were more than three times more likely to die than never-smokers, while former smokers were less likely to die the sooner they quit.

In the U.S., the number of individuals aged 70 years and older is expected to increase from 29.2 million (9.3 percent of the population) in 2012, to 63.6 million individuals (15.9percent) in 2050.

"U.S. adults aged 70 and older have a very high lifetime prevalence of cigarette smoking, so it's important to examine the risks associated with smoking and the benefits of quitting at older ages among these individuals," explained lead investigator Sarah H. Nash, PhD, who conducted the research as part of her postdoctoral training at the National Cancer Institute, NIH, Bethesda, MD.

Investigators reviewed data for more than 160,000 individuals aged 70 and over who participated in the NIH-AARP Diet and Health Study. They completed a questionnaire in 2004-2005 detailing their smoking use, and reported deaths were tracked until the end of 2011. Analyses conducted between 2014 and 2016 correlated age at death with self-reported age at smoking initiation and cessation and amount smoked after 70 years of age.

The 2004-2005 questionnaire assessed smoking intensity in cigarettes per day and smoking history through nine age periods. For this study, participants still smoking in their 70s were identified as current smokers, and former smokers were classified by the decade of life when quitting.

For the follow-up, the National Death Index Plus was used to determine deaths, while ICD-9 and ICD-10 codes for smoking-related mortality were used to further identify outcomes. These included lung cancer; other smoking-related cancers, including bladder, colorectal, esophageal, head and neck, kidney and renal pelvis, liver, pancreatic and stomach cancers, and acute myeloid leukemia; heart disease; stroke; diabetes; and respiratory disease (e.g., pneumonia, influenza, chronic obstructive pulmonary disease, and allied conditions).

Data were adjusted for age, sex, level of education, and alcohol use. Since NIH-AARP participants are predominantly white, adjusting for race did not affect the results and was not included in the final models.

At the beginning of the study (2004-2005), the median age of participants was 75 years. Almost 56 percent were former smokers and 6 percent were current smokers. Males were less likely (31 percent vs 48 percent of females) to be never-smokers. Males smoked more than females (18.2 pack years vs 11.6 pack years), and males were more likely to have started smoking before 15 years (19 percent vs 9.5 percent of female smokers).

During an average follow-up of 6.4 years, almost 16 percent of the participants died. While 12.1 percent of the never smokers died, 16.2 percent, 19.7 percent, 23.9 percent, and 27.9 percent of former smokers who quit between ages 30-39, 40-49, 50-59, and 60-69 years died, respectively. Current smokers fared the worst, with 33.1 percent dying. Mortality rates for women were lower than men at each level of smoking use.

"These data show that age at smoking initiation and cessation, both key components of smoking duration, are important predictors of mortality in U.S. adults aged 70 years and older," commented Dr. Nash.

"In the NIH-AARP study population, younger age at initiation was associated with increased risk of mortality, highlighting the importance of youth and early-adult smoking on lifetime mortality risk, even among people who live to age 70 years. In addition, former smokers were at substantially reduced risk of mortality after age 70 years relative to current smokers, even those who quit in their 60s.

These finding show that smoking cessation should be emphasized to all smokers, regardless of age," he added.(ANI)

New York [U.S.], Apr. 24 (ANI): Still downing gallons of diet soda despite knowing that it wrecks your body? Maybe the knowledge of artificially sweetened beverages taking a toll on your brain as well ought to make an impact on your unhealthy habit.

Full Story >>

Washington D.C. [USA], Apr 23 (ANI): A recent study has demonstrated that in the general population, central obesity, insulin resistance, diabetes, lipid abnormalities and high alcohol consumption were the strongest predictors of severe liver disease.

Full Story >>

Breastmilk may help detect your cancer risk

Updated: Apr 23, 2017 11:50 IST

Washington D.C. [USA], Apr 23 (ANI): Breastmilk might offer clues about a woman's cancer risk, according to a recent research.

Full Story >>

Soon, new weapon in war against obesity

Updated: Apr 23, 2017 11:14 IST

Washington D.C. [USA], Apr 23 (ANI): A team of scientists has uncovered a potential approach to combat obesity.

Full Story >>

Turns out, being obese is worse than smoking

Updated: Apr 23, 2017 10:52 IST

Washington D.C. [USA], Apr 23 (ANI): You may want to shed those extra kilos as a recent study has found obesity as a top cause of preventable life-years lost.

Full Story >>

Washington D.C. [USA], Apr 23 (ANI): Testing for molecular markers in the urine of kidney transplant patients could reveal whether the transplant is failing and why, according to a recent research.

Full Story >>

Washington D.C. [USA], Apr 23 (ANI): People with drug-resistant bacteria in their urine or stool samples are at an increased risk of developing Sepsis, a bloodstream infection that is also resistant to certain antibiotics, according to a recent study.

Full Story >>

Move over contact lenses, LASIK is better

Updated: Apr 22, 2017 18:05 IST

Washington D.C. [USA], April 22 (ANI): Good news for those who underwent LASIK (laser-assisted in situ keratomileusis) for correction of their vision, as a recent study has found that the rate of cornea infection is lower.

Full Story >>

New Delhi [India], Apr. 22 (ANI): In today's era of booming medical advancements, the chances of survival from cancer can be increased, if it is detected at an early stage.

Full Story >>

Eman Ahmed has done miraculously well: Doctor

Updated: Apr 21, 2017 21:11 IST

Mumbai (Maharashtra) [India], Apr 21 (ANI): 36-year-old Egyptian Eman Ahmed, who was the heaviest woman in the world at 500-plus kg until a few months ago, has lost 250kg in two months after undergoing surgery here at Saifee Hospital.

Full Story >>

Let's create awareness about liver cancer!

Updated: Apr 21, 2017 17:25 IST

New Delhi [India], Apr 21 (ANI): The increasing liver disease is one of the most common diseases in the world.

Full Story >>

College blues? Turn to mindfulness

Updated: Apr 21, 2017 16:35 IST

Washington D.C. [USA], Apr 21 (ANI): Heading off to college? A recent study has suggested that mindfulness may help freshmen stress less and smile more.

Full Story >>

Washington D.C. [USA], April 21 (ANI): A team of US researchers has revealed that the traditional clinical hearing tests often fail to diagnose patients with a common form of inner ear damage, which otherwise might be detected by some behavioural tests.

Full Story >>

Washington D.C. [USA], April 21 (ANI): Canadian researchers have found that people with multiple sclerosis start showing symptoms of something wrong, five years before the onset of disease.

Full Story >>

Washington D.C. [USA], Apr 20 (ANI): You may want to stimulate your brain in early life as a recent study has found that it may help stay mentally healthy in older age.

Full Story >>

New Delhi [India], Apr 20 (ANI): A 24-year-old multiple sclerosis patient recently got another chance at life after undergoing a bone marrow transplantation.

Full Story >>

A weapon against Alzheimer's in your womb?

Updated: Apr 20, 2017 17:13 IST

Washington D.C. [USA], Apr 20 (ANI): Think your memory is starting to slip? A protein found in umbilical cord blood may help turn back the clock on mental ageing.

Full Story >>

New Delhi [India], Apr 20 (ANI): Even though 91% Indians consider health a priority and intend to make healthy changes, a study suggests that almost one-third of the population does not care to visit physicians on time.

Full Story >>

Washington D.C. [USA], April 20 (ANI): Menopausal or pre- menopausal women, aged 40-65, who experience hot flashes or excessive sweating during sleep, are at increased risk of moderate and severe depression.

Full Story >>

New Delhi [India], Apr 19 (ANI): Tobacco is considered to be one of the most important avoidable lifestyle related cause of cancer in the world.

Full Story >>