The «pessimistic» scenario finds 1.6 million of
these former cigarette smokers will have a combined 20.8 million more years of life, while the «optimistic» scenario calculates 6.6 million nicotine users who switch from cigarettes to e-cigarettes will live 86.7 more life years.
Daily cannabis use increased most rapidly among
former cigarette smokers (2.80 percent in 2014 versus 0.98 percent in 2002).
Not exact matches
Former smokers, for instance, can become ill if they try a
cigarette after having not smoked for a certain amount of time.
Individuals who reported smoking 100
cigarettes in their lifetime and no
cigarettes in the past 30 days were grouped as
former smokers.
Marijuana use occurred nearly exclusively among current
cigarette smokers — daily or non-daily
smokers — compared with
former smokers and those who have never smoked.
Among their concerns: e-cigs might lure
former smokers back to conventional
cigarettes, expose users and bystanders alike to unidentified dangers, or become a gateway for teens who might subsequently experiment with tobacco products and other drugs.
But
smokers and
former smokers are rarely asked precisely how long they smoked and how many
cigarettes a day they consumed at every point in their lives.
Television advertisements for e-cigarettes may be enticing current and even
former tobacco
smokers to reach for another
cigarette.
«We know that exposure to smoking cues such as visual depictions of
cigarettes, ashtrays, matches, lighters, and smoke heightens
smokers» urge to smoke a
cigarette, and decreases
former smokers» confidence in their ability to refrain from smoking a
cigarette,» said Dr. Maloney.
According to a new study in the American Journal of Preventive Medicine, current and
former smokers who suffer from disease are more likely to have reported using an e-cigarette, meaning these patients may see e-
cigarettes as safer or less harmful than combustible
cigarettes and a way to reduce the risks posed by traditional smoking.
The research informs an ongoing debate as to whether e-
cigarettes are effective aids for smoking cessation, promote uptake by non-tobacco users, discourage cessation via dual use of
cigarettes and e-
cigarettes, or encourage relapse to
cigarette use among
former smokers.
«Marijuana may lead non-
smokers to
cigarettes:
Former smokers who use cannabis are also more likely to relapse, and current
smokers who use cannabis are less likely to quit.»
Former smokers who use cannabis are also more likely to relapse to
cigarette smoking.
The studies included information on participants» health, gender, age, race, education level, and family history of lung cancer, as well as their smoking history, including how old they were when they started, how many years they smoked, how many
cigarettes they smoked each day, and, for
former smokers, how long it had been since they quit.
The 18 reports of women showed that one
cigarette per day had 31 % (interquartile range 2 - 46 %) of the excess risk of 20
cigarettes per day (pooled relative risks 1.57 v 2.84), and smoking five
cigarettes per day had 43 % (14 - 55 %) the excess risk (relative risk 1.76)(fig 3; supplementary figure C. (Excluding one study that might have included
former smokers in the reference group increased the relative risks for one and 20
cigarettes per day to 1.63 and 2.87.)