Smoking

Small Link for Cannabis Use, Reduced Cognitive Functioning

April 19, 2018

Data were reviewed from 69 studies of 2,152 cannabis users (mean age, 20.6 years) and 6,575 comparison participants (mean age, 20.8 years) with minimal cannabis exposure.

Cigarette Smoking a Risk Factor for Heart Failure in Blacks

April 16, 2018

The researchers found that, compared with never smoking, current smoking was associated with higher mean left ventricular (LV) mass index and lower mean LV circumferential strain after adjustment for confounding factors

Cigarette Price Hike Would Provide More Gains for the Poor

April 12, 2018

Compared with men in the top income group, men in the bottom income group (poorest 20% of the population) would gain 6.7 times more life years (155 versus 23 million). For each smoker in the bottom income group, the average life years gained from cessation was 5.1 times that of the top group (1.46 versus 0.23 years).

Cannabis Compound Transfers to Breast Milk

April 10, 2018

The researchers found that delta-9-tetrahydrocannabinol was detected at low concentrations at all the time points beyond time 0, but no metabolites were detected at any time point.

Cannabis Use Tied to Increased Likelihood of Cigarette Smoking

April 06, 2018

Long-term data show increased initiation of, persistence of, and relapse to cigarette smoking

Receptivity to Tobacco Ads Linked to Progression to Use

April 02, 2018

The researchers found that receptivity to any advertising was high at wave 1 for those aged 12 to 14 years (44%) and highest for those aged 18 to 21 years (68.7%).

Scale of Online Marketplace for Marijuana Increasing

March 30, 2018

From 2005 to 2017, the subset of marijuana searches on Google indicative of shopping increased 199%: During June 2017 there were 1.4 to 2.4 million marijuana shopping searches.

Liquids in E-Cigarettes Are Heterogeneous, Frequently Toxic

March 29, 2018

The more chemicals in an e-liquid, the more toxic it was likely to be; in addition, vanillin was associated with elevated toxicity values. There was a correlation for the concentration of cinnamaldehyde and vanillin, but not triacetin, with toxicity.

Use of E-Cigarettes May Hurt Efforts to Quit Smoking

March 28, 2018

Findings based on a study of patients trying to quit smoking following hospital discharge

E-cigarette use may hamper smoking cessation for smokers planning to quit post-hospitalization

March 27, 2018

In a study of hospitalized smokers who planned to quit smoking post-discharge, users of e-cigarettes were not as likely as nonusers to refrain from using tobacco at 6 months.

Varenicline Efficacy Evaluated in Nicotine Dependent Adolescents

By March 23, 2018

Adverse events observed among adolescent smokers in the study were comparable to those seen in adult studies.

E-Cigarette Use: More Harm Than Benefit?

March 15, 2018

Estimated 168,000 never-smoking young people could become daily smokers after starting e-cigs

Study Finds Heat-Not-Burn 'Smokeless Cigarettes' Release Toxic Chemical

March 14, 2018

"This study has shown that the iQOS system may not be as harm-free as claimed and also emphasizes the urgent need for further safety testing as the popularity and user base of this product is growing rapidly," the authors write.

Does Marijuana Use Impact Kidney Function?

March 09, 2018

Researchers compared current and past marijuana use to never users

Pediatric Airflow Obstruction and Tobacco Smoke Exposure: Is There a Link?

March 09, 2018

Serum cotinine level was not significantly associated with airflow obstruction in the multivariate analysis with both exposures included as covariates (adjusted odds ratio, 1.07; 95% confidence interval, 0.94 to 1.21); there was no correlation in children with asthma or those without asthma.

One Year On: Assessing the Effects of a Menthol Cigarette Ban

March 06, 2018

The researchers found that before the ban, 59.7% of menthol smokers said that they would switch to or only use nonmenthol cigarettes; at follow-up, only 28.2% had done so.

Study Reveals High Excretion of Carcinogenic Metabolites Among Teen E-Smokers

March 05, 2018

The researchers found that, compared with e-cigarette-only users, dual users had significantly higher urine excretion of metabolites of benzene, ethylene oxide, acrylonitrile, acrolein, and acrylamide (all P<0.05).

CDC Breaks Down Figures for Smoking Prevalence During Pregnancy

February 28, 2018

The researchers found that 7.2% of women who gave birth in 2016 smoked cigarettes during pregnancy. The prevalence of smoking was highest for women aged 20 to 24 years, followed by those aged 15 to 19 and 25 to 29 years.

Have Medical Marijuana Laws Led to Increased Use in Teens?

February 28, 2018

The researchers found that none of the 11 studies included in the meta-analysis found significant estimates of pre-post MML changes in marijuana use prevalence among adolescents compared with changes in non-MML states over the same time period.

Most E-Cigarette Aerosol Concentrations Exceed Current Toxic Metal Limits

February 27, 2018

The researchers found that median metal concentrations were higher in samples from the aerosol and tank, compared to the dispenser (all P<0:001), for aluminum, chromium, nickel, lead, and zinc.

Death Risk Assessed With Contemporary Tobacco Product Use

By February 21, 2018

For current non-daily cigarette smokers, there were statistically significant associations with death from lung cancer, oral cancer, circulatory death, cardiovascular death, cerebrovascular death (stroke), and chronic obstructive pulmonary disease.

Targeting Harm Perceptions Could Cut Teen E-Cigarette Use

February 12, 2018

Perceived harm from secondhand e-cigarette vapor showed similar patterns. Adolescents who use e-cigarettes are more likely to initiate using tobacco products than those who do not use e-cigarettes.

Do the Benefits of Smoking Cessation Tx Decrease Over Time?

By January 31, 2018

Benefits of smoking cessation medications decline over the first year.

How E-Cigarette Smoke May Damage DNA, Inhibit Repair

January 30, 2018

"These results indicate that nicotine nitrosation occurs in vivo in mice and that e-cigarette smoke is carcinogenic to the murine lung and bladder and harmful to the murine heart," the authors write.

Smokers Display Distorted Temporal Perception of Health Consequences

January 29, 2018

For both smokers and nonsmokers, the onset time estimates for mild conditions were associated with self-perceptions of risk and fear level of developing smoking-related conditions.

Study Examines Light Smoking Impact on Heart Disease, Stroke Risk

January 25, 2018

The researchers found that the pooled relative risk for coronary heart disease was 1.48 and 2.04, respectively, for smoking 1 and 20 cigarettes per day for men.

Smoking Prevalence in U.S. Didn't Significantly Change From 2015 to 2016

January 23, 2018

The researchers found that the prevalence of current cigarette smoking was 15.5% among adults in 2016, which marked a significant decline from 20.9% in 2005.

Noncigarette tobacco product use is associated with future cigarette smoking

January 04, 2018

Never-cigarette-smoking youths who initiated tobacco use with noncigarette products including e-cigarettes, hookahs, noncigarette combustible tobacco, or smokeless tobacco were more likely to smoke cigarettes in the following year than those who did not use noncigarette tobacco.

Are Pharmaceutical Aids for Smoking Cessation Effective?

January 02, 2018

No evidence that varenicline, bupropion, or nicotine replacement increase probability of abstinence

Higher Fruit Intake May Delay Lung Function Decline, Especially in Ex-Smokers

December 26, 2017

Apple, banana, tomato intake linked to slower decline in forced vital capacity in ex-smokers