scholarly journals Awareness and prevalence of e-cigarette use among Chinese adults: policy implications

2021 ◽  
pp. tobaccocontrol-2020-056114
Author(s):  
Lin Xiao ◽  
Xi Yin ◽  
Xinbo Di ◽  
Yi Nan ◽  
Tianchu Lyu ◽  
...  
Keyword(s):  
Electronic Cigarettes ◽  
Household Survey ◽  
Population Level ◽  
Policy Implications ◽  
Cigarette Use ◽  
Chinese Adults ◽  
Design Data ◽  
Quit Smoking ◽  
Nationally Representative ◽  
High Level

Objective To assess the awareness and prevalence of electronic cigarettes (e-cigarettes) and associated factors among Chinese adults (15 years and older). Method This study examined data from Global Adults Tobacco Survey China Project, which was nationally representative and used stratified multiphase cluster randomised sampling design. Data were collected in 2018 through a household survey with in-person interviews using tablet computers. Complex sampling weighted analysis method was used. Results 48.5% of Chinese adults had heard of e-cigarettes. The proportions of Chinese adults who had ever used, had used in the last 12 months, and currently used e-cigarettes were 5.0%, 2.2% and 0.9%, respectively; people in the 15–24 years group showed the highest rates of ever use, last 12-month use and current use at 7.6%, 4.4%, and 1.5%, respectively. Among males, higher e-cigarette use was associated with 15–24 years age group, college/university or above education, and daily use of combustible cigarettes. Among all e-cigarette users, 90.6% also used combustible cigarettes. The most common reason for e-cigarette use was smoking cessation (46.2%) while among ever smokers, 9.5% of ever e-cigarette users had quit smoking and 21.8% of never e-cigarette users had quit smoking (adjusted OR 0.454, 95% CI 0.290 to 0.712). Conclusion Prevalence of e-cigarettes among Chinese adults had increased since 2015, especially among young people aged 15–24. The high level of dual use and lower quit rate among e-cigarette users indicated e-cigarettes had not shown cessation utility at the population level in China. Regulation of e-cigarettes is needed to protect youth and minimise health risks.

School Tobacco Control Policies Related to Students’ Smoking and Attitudes Toward Smoking: National Survey Results, 1999-2000

2005 ◽  
Vol 32 (6) ◽  
pp. 780-794 ◽  
Author(s):  
Revathy Kumar ◽  
Patrick M. O’Malley ◽  
Lloyd D. Johnston
Keyword(s):  
Tobacco Use ◽  
Student Behavior ◽  
Smoking Behavior ◽  
Policy Implications ◽  
Cigarette Use ◽  
School Students ◽  
School Policies ◽  
Monitoring The Future ◽  
Nationally Representative ◽  
Attitudes Toward Smoking

The belief that schools can play a powerful role in preventing tobacco use among adolescents has led to the implementation of various tobacco-related polices and practices. This study examines the association between school policies regarding monitoring student behavior, severity of action taken for infraction of policies, and tobacco use by staff, and student smoking behavior and attitudes. Data on students’ smoking behavior and attitudes were obtained from the 1999 and 2000 Monitoring the Future surveys of nationally representative samples of 8th-, 10th-, and 12th-grade students. Data on school policies and practices were obtained from administrators in those same schools. Hierarchical analyses using HLM5 were conducted. Strictness of monitoring was significantly negatively associated with daily cigarette use by middle school students. Permitting staff to smoke was significantly positively associated with students’ daily cigarette use and negatively with their disapproval of cigarette use. Policy implications are discussed.

Socioeconomic Disparities in Electronic Cigarette Use and Transitions from Smoking

2018 ◽  
Vol 21 (10) ◽  
pp. 1363-1370 ◽  
Author(s):  
Abigail S Friedman ◽  
Samantha J L Horn
Keyword(s):  
Household Income ◽  
Electronic Cigarettes ◽  
Electronic Cigarette ◽  
Socioeconomic Disparities ◽  
Morbidity And Mortality ◽  
Cigarette Use ◽  
Dual Use ◽  
Representative Data ◽  
Percentage Points ◽  
Nationally Representative

Abstract Introduction Socioeconomic disparities have been established for conventional cigarette use, but not for electronic cigarettes. This study estimates socioeconomic gradients in exclusive use of conventional cigarettes, electronic cigarettes, and dual use (ie, use of both products) among adults in the United States. Methods Analyses consider nationally representative data on 25- to 54-year-old respondents to the 2014–2016 National Health Interview Surveys (N = 50306). Demographically adjusted seemingly unrelated regression models estimate how two socioeconomic status measures—respondent education and household income—relate to current exclusive use of conventional cigarettes, electronic cigarettes, and dual use. Results Conventional cigarette use exhibits negative education and income gradients, consistent with existing research: −12.9 percentage points (confidence interval [CI]: −14.0, −11.8) if college educated, and −9.5 percentage points (CI: −10.9, −8.1) if household income exceeds 400% of the federal poverty level. These gradients are flatter for dual use (−1.4 [CI: −1.8, −0.9] and −1.9 [CI: −2.5, −1.2]), and statistically insignificant for electronic cigarette use (−0.03 [CI: −0.5, 0.4] and −0.3 [CI: −0.8, −0.2]). Limiting the sample to ever-smokers, higher education is associated with a 0.9 percentage point increase in likelihood of exclusive electronic cigarette use at interview (CI: 0.0, 1.9). Conclusions Education and income gradients in exclusive electronic cigarette use are small and statistically insignificant, contrasting with strong negative gradients in exclusive conventional cigarette use. Furthermore, more educated smokers are more likely to switch to exclusive e-cigarette use than less educated smokers. Such differential switching may exacerbate socioeconomic disparities in smoking-related morbidity and mortality, but lower the burden of tobacco-related disease. Implications Research has not yet established whether socioeconomic disparities in electronic cigarette (e-cigarette) use resemble those observed for conventional cigarettes. This article uses nationally representative data on US adults aged 25–54 to estimate income and education gradients in exclusive use of conventional cigarettes, e-cigarettes, and dual use. Both gradients are steep and negative for conventional cigarette use, but flat and statistically insignificant for e-cigarette use. Repeating the analysis among ever-smokers indicates that more educated smokers are more likely to transition toward exclusive e-cigarette use than less educated smokers. Such differential substitution may exacerbate disparities in smoking-related morbidity and mortality.

Nicotine and Cotinine Levels With Electronic Cigarette

2015 ◽  
Vol 35 (2) ◽  
pp. 179-185 ◽  
Author(s):  
A. Marsot ◽  
N. Simon
Keyword(s):  
Peak Concentration ◽  
Electronic Cigarettes ◽  
Electronic Cigarette ◽  
Cigarette Use ◽  
Quit Smoking ◽  
Tobacco Cigarette ◽  
Nicotine Delivery ◽  
Pubmed Database ◽  
Urge To Smoke ◽  
Reasons For Use

Background: Since their introduction in 2004, electronic cigarettes (e-cigarettes) have gained popularity worldwide. E-cigarettes are marketed as nicotine delivery devices. Commonly reported reasons for use include to quit smoking, to reduce urge to smoke, or the perceived lower risk alternative to smoking. But what are the actual amounts of nicotine delivered? Aim: This review summarizes all the published studies concerning nicotine or cotinine levels following e-cigarette use. Methods: A literature search was conducted from the PubMed database, from 1985 to January 2014, using the following terms: electronic cigarette(s), e-cigarette(s), electronic nicotine delivery system, cotinine, and nicotine. Articles were excluded if they were not pertinent according to our criteria. References of all relevant articles were also evaluated. Results: Eight studies were included in this review. The following information was extracted from the articles: population size, age of participants, recruitment, inclusion and exclusion criteria, concentration of nicotine in refills liquids, study sample design, and observed concentrations. Following design of studies, plasma nicotine Cmax was observed between 0 and 5 ng/mL (no significant changes) or between 13.9 and 16.3 ng/mL (similar to a tobacco cigarette) with a Tmax between 70 and 75 minutes. Cotinine levels after “vaping” an e-cigarette are similar to a tobacco cigarette. Conclusion: This review summarizes e-cigarette studies that contain information on nicotine or cotinine levels. The peak concentration of nicotine appears to be dependent on the use and dose level of e-cigarette cartridge. The value of this peak concentration is similar to the value found with a tobacco cigarette. However, the time corresponding to the peak concentration is delayed compared to a tobacco cigarette.

scholarly journals E-cigarette Usage Is Associated With Increased Past-12-Month Quit Attempts and Successful Smoking Cessation in Two US Population–Based Surveys

2018 ◽  
Vol 21 (10) ◽  
pp. 1331-1338 ◽  
Author(s):  
Linda Johnson ◽  
Yinjiao Ma ◽  
Sherri L Fisher ◽  
Alex T Ramsey ◽  
Li-Shiun Chen ◽  
...  
Keyword(s):  
Smoking Cessation ◽  
Electronic Cigarettes ◽  
Population Level ◽  
Population Based ◽  
Cigarette Use ◽  
Positive Effects ◽  
Quit Attempts ◽  
The Us ◽  
Interview Survey ◽  
Demographic Shifts

Abstract Introduction We examined past-12-month quit attempts and smoking cessation from 2006 to 2016 while accounting for demographic shifts in the US population. In addition, we sought to understand whether the current use of electronic cigarettes was associated with a change in past-12-month quit attempts and successful smoking cessation at the population level. Methods We analyzed data from 25- to 44-year-olds from the National Health Interview Survey (NHIS) from 2006 to 2016 (N = 26,354) and the Tobacco Use Supplement to the Current Population Survey (TUS-CPS) in 2006–2007, 2010–2011, and 2014–2015 (N = 33,627). Data on e-cigarette use were available in the 2014–2016 NHIS and 2014–2015 TUS-CPS surveys. Results Past-12-month quit attempts and smoking cessation increased in recent years compared with 2006. Current e-cigarette use was associated with higher quit attempts (adjusted odds ratio [aOR] = 2.29, 95% confidence interval [CI] = 1.87 to 2.81, p < .001) and greater smoking cessation (aOR = 1.64, 95% CI = 1.21 to 2.21, p = .001) in the NHIS. Multivariable logistic regression of the TUS-CPS data showed that current e-cigarette use was similarly significantly associated with increased past-12-month quit attempts and smoking cessation. Significant interactions were found for smoking frequency (everyday and some-day smoking) and current e-cigarette use for both outcomes (p < .0001) with the strongest positive effects seen in everyday smokers. Conclusions Compared with 2006, past-12-month quit attempts and smoking cessation increased among adults aged 25–44 in recent years. Current e-cigarette use was associated with increased past-12-month quit attempts and successful smoking cessation among established smokers. These findings are relevant to future tobacco policy decisions. Implications E-cigarettes were introduced into the US market over the past decade. During this period, past-12-month quit attempts and smoking cessation have increased among US adults aged 25–44. These trends are inconsistent with the hypothesis that e-cigarette use is delaying quit attempts and leading to decreased smoking cessation. In contrast, current e-cigarette use was associated with significantly higher past-12-month quit attempts and past-12-month cessation. These findings suggest that e-cigarette use contributes to a reduction in combustible cigarette use among established smokers.

P032 E-CIGARETTE AND CIGARETTE USE AMONG U.S. ADULT IBD PATIENTS: POPULATION-LEVEL SURVEY

2020 ◽  
Vol 26 (Supplement_1) ◽  
pp. S62-S63
Author(s):  
Ryan Suk ◽  
Heetae Suk ◽  
Kalyani Sonawane ◽  
Ashish Deshmukh
Keyword(s):  
Cigarette Smoking ◽  
Lung Injury ◽  
Survey Design ◽  
Population Level ◽  
Cigarette Use ◽  
Cigarette Smokers ◽  
The Us ◽  
Current Cigarette ◽  
Lung Injuries ◽  
Nationally Representative

Abstract Background Cigarette smoking can negatively affect treatment response in inflammatory bowel disease (IBD) patients, especially among those with Crohn’s disease (CD). E-cigarette has been considered a safer alternative to delivering nicotine for IBD patients who smoke. However, given the recent large number of reported e-cigarette-related lung injury cases, CDC released an interim guidance update on those lung injuries. They also coined a term EVALI (e-cigarette, or vaping, product use associated lung injury) emphasizing the possible harms in e-cigarette smoking. To the best our knowledge, we currently do not know the recent smoking habits in American IBD patients, especially when it reveals that e-cigarette use might cause serious lung injuries. Methods We used National Health Interview Survey (NHIS) for 2015–2016, which is a nationally representative survey for noninstitutionalized adults in the US. Weighted counts and percentages were estimated using survey design for the population-level results. We identified those who reportedly were told by a doctor or healthcare professional that they have IBD. We first estimated the prevalence of current e-cigarette or cigarette use among IBD patients. We then estimated the frequency of use (every day or some days) among the current users. We also categorized IBD patients into 4 groups by smoking type: those using e-cigarette only, cigarette only, using both, and neither. To see the characteristics of e-cigarette users, we stratified e-cigarette users by current/former/never cigarette use status. Results We identified 951 participants (population estimate: 3.1 million) with IBD. Among those people, 5.0% (95% CI: 3.1–6.9) was current e-cigarette users while 17.9% (95% CI: 14.8–21.0) was current cigarette smokers. Prevalence of every-day use and some-day use of e-cigarette was similar (2.4% vs 2.6%), while there was much higher prevalence of every-day use than some-day use in cigarette (15.3% vs 2.6%). Those who were using both e-cigarette and cigarette was 3.2% (Table). Majority of e-cigarette users were also currently using cigarette (63.6%, 95% CI: 48.9–78.3), while 32.7% (95% CI: 18.4–47.0) of them were former cigarette smokers. Only 3.7% (0.0–8.9) of them never used cigarettes. Conclusion While numerous studies show e-cigarette use is generally increasing rapidly in the US, we found that 5% of IBD patients are currently using e-cigarette. Almost two-thirds of them were also currently smoking cigarette and one-third of them were former smokers. It is possible that most of the e-cigarette users are still in the process of transitioning from cigarette smoking and thus using both types. We lack information on effects of using e-cigarette or both e-cigarette and cigarette in IBD treatment outcomes, as well as how e-cigarette use will complicate other health risks in IBD patients (e.g. lung injuries). We need further research on these effects to properly guide IBD patients who are in need of smoking cessation.

scholarly journals E-Cigarette Flavors and Frequency of E-Cigarette Use among Adult Dual Users Who Attempt to Quit Cigarette Smoking in the United States: Longitudinal Findings from the PATH Study 2015/16–2016/17

2021 ◽  
Vol 18 (8) ◽  
pp. 4373
Author(s):  
Karin A. Kasza ◽  
Maciej L. Goniewicz ◽  
Kathryn C. Edwards ◽  
Michael D. Sawdey ◽  
Marushka L. Silveira ◽  
...  
Keyword(s):  
Smoking Cessation ◽  
Cigarette Smoking ◽  
Longitudinal Research ◽  
The United States ◽  
Study Data ◽  
Cigarette Use ◽  
Quit Smoking ◽  
Nationally Representative ◽  
The Relationship

Potential mechanisms by which e-cigarette use may relate to combustible cigarette smoking cessation are not well-understood. We used U.S. nationally representative data to prospectively evaluate the relationship between e-cigarette flavor use and frequency of e-cigarette use among adult cigarette/e-cigarette dual users who attempted to quit smoking cigarettes. Analyses used Population Assessment of Tobacco and Health (PATH) Study data from adult dual users (2015/16) who attempted to quit smoking between 2015/16 and 2016/17 (Wave 3-Wave 4, n = 685, including those who did/did not quit by 2016/17). E-cigarette flavor use (usual/last flavor, past 30-day flavor; assessed in 2015/16) was categorized into Only tobacco; Only menthol/mint; Only non-tobacco, non-menthol/mint; and Any combination of tobacco, menthol/mint, other flavor(s). The key outcome, evaluated at follow-up in 2016/17, was frequent e-cigarette use, which was defined as use on 20+ of past 30 days. Logistic regression was used to evaluate associations between e-cigarette flavor use in 2015/16 and frequent e-cigarette use at follow-up in 2016/17. Dual users who attempted to quit smoking had greater odds of frequent e-cigarette use at follow-up when they used only non-tobacco, non-menthol/mint flavor than when they used only tobacco flavor as their regular/last e-cigarette flavor (OR = 1.9, 95% CI: 1.1–3.4); findings were no longer significant when adjusted for factors including e-cigarette device type (AOR = 1.4, 95% CI: 0.7–2.8). Past 30-day e-cigarette flavor use results were generally similar, although frequent e-cigarette use at follow-up was highest among those who used any combination of tobacco, menthol/mint, or other flavors. Findings indicate that e-cigarette flavor use among dual users who attempt to quit smoking may be related to e-cigarette use frequency overall, which may indicate a mechanism underlying findings for e-cigarette use and smoking cessation. Further longitudinal research may help to disentangle how e-cigarette characteristics uniquely impact e-cigarette use frequency and smoking cessation/sustained use.

scholarly journals Prevalence of Flavored e-Cigarette Use Among Subpopulations of Adults in the United States

2020 ◽  
Author(s):  
Adam M Leventhal ◽  
Hongying Dai
Keyword(s):  
Smoking Status ◽  
Statistical Significance ◽  
The United States ◽  
Cigarette Use ◽  
Cross Sectional ◽  
Quit Smoking ◽  
Prevalence Estimates ◽  
Quitting Smoking ◽  
Nationally Representative ◽  
Never Smokers

Abstract Background Evidence of US adult flavored e-cigarette use prevalence stratified by age, smoking status, and purpose for vaping (ie, quitting smoking, to use when or where smoking is not allowed) can inform policies that reduce the tobacco-related cancer burden. Methods Current flavored e-cigarette use (use 1 or more nontobacco flavors) prevalence estimates were compared across subpopulation groups using 2-sided statistical significance tests in the July 2018 Current Population Survey Tobacco Use Supplement, a nationally representative cross-sectional adult survey (n = 46 759). Results Current flavored e-cigarette use was reported by 1.6% (95% confidence interval [CI] = 1.47% to 1.69%) of all respondents. Among current vapers, the percentage of those who used flavored e-cigarettes was higher for adults aged 18-24 years (89.6%), 25-34 years (86.7%), and 35-44 years (76.0%) than for adults aged 45 years and older (60.4%, Ps &lt; .001); was higher in never smokers (89.8%) than current (72.9%), long-term former (73.9%), and recent former (80.4%) smokers (Ps ≤ .009); was higher in smokers who reportedly did (78.9%) vs did not (71.1%) use e-cigarettes to vape where or when smoking is not allowed (P = .005); and did not differ between smokers who reportedly did (75.0%) vs did not (73.9%) vape to quit smoking (P = .71). Individuals who vaped to quit smoking and currently used flavored e-cigarettes constituted 0.9% (95% CI = 0.82% to 0.99%) of all adults (weighted N = 2 251 000, 95% CI = 2 046 000 to 2 476 000) and 57.2% of current flavored e-cigarette users. Conclusions Flavored e-cigarette use prevalence was low among US adults overall but common for current vapers. Flavored e-cigarette use was disproportionately prevalent among never smokers and other subpopulations that might experience harm from vaping.

scholarly journals Cassava Productivity Growth in Nigeria

2019 ◽  
pp. 1-9
Author(s):  
Z. O. Oluwafemi ◽  
B. T. Omonona ◽  
A. O. Adepoju ◽  
F. A. Sowunmi
Keyword(s):  
Productivity Growth ◽  
Rural Areas ◽  
Agricultural Sector ◽  
Secondary Data ◽  
Household Survey ◽  
Access To Credit ◽  
High Productivity ◽  
Lower Productivity ◽  
Nationally Representative ◽  
High Level

Cassava has gained prominence in the world and has become economic crop in the Nigerian agricultural sector. Secondary data was used for this study. The required variables were extracted from General Household Survey Panel Data (GHS-P). The GHS-P is a nationally representative survey of households across Nigeria covering urban and rural sectors. Analytical tools used included Total factor productivity and Markov chain. 82% of populations of Cassava farmers are in the rural areas and close to 73% were young adults including both male and female involved in cassava production. Approximately 65% of the cassava based farmers were single that not yet married and most of the farmers were educated and about 80% and 98% of the cassava based farmers did not have access to credit facilities and extension personnel respectively. Generally, the cassava productivity growth was erratic and very small proportion of cassava farmers that were in lower productivity reduced overtime, while the minimal proportion of cassava farmers that moved into both moderate and high productivity increased overtime respectively.  Generally, there is more to be done to increase and attain sustainable high level cassava productivity growth in Nigeria.

scholarly journals Electronic cigarettes

2017 ◽  
Author(s):  
Spencer Kaspick ◽  
BCIT School of Health Sciences, Environmental Health ◽  
Helen Heacock
Keyword(s):  
Smoking Cessation ◽  
Electronic Cigarettes ◽  
Smoking Status ◽  
Electronic Cigarette ◽  
Cigarette Use ◽  
Chi Square ◽  
Post Secondary ◽  
Quit Smoking ◽  
Quitting Smoking ◽  
Chi Squared

  Background: Electronic cigarettes are a widely-used, yet still emerging technology. As such, there is relatively little data regarding the reasons why people take up their use. Many claim to use them as a smoking-cessation method. Concern exists that experimentation in non-smokers may lead to nicotine addiction and subsequent smoking. The purpose of this study was to determine the primary reasons for the commencement of electronic cigarette use, and to suggest way in which these findings could affect current policies and regulations pertaining to electronic cigarettes. Methods: A survey examining electronic cigarette use was prepared. The survey contained questions respecting primary motivation for use, frequency of use, present and former smoking status as well as agreement with common perception about electronic cigarettes. Basic demographic information was also collected. The survey was posted to “www.reddit.com” and was accessible to users who used electronic cigarettes themselves via the “/r/electronic_cigarettes” sub-Reddit for a period of five days. Once responses were collected, Chi-square tests of independence were run to determine if any associations existed. Responses were also compared to previous studies of a similar nature to see if any similarities existed. Results: In total, 155 responses were received. The majority of the respondents were males (89.7%) between the ages of 19 and 28 (47.7%). 30.32% listed their occupation as “student”, and almost three-quarters of the respondents had some post-secondary experience. 78.1% of respondents were former smokers, and 61.3% identified their primary reason for electronic cigarette use as “to quit smoking.” Chi-squared tests for association between responses yielded statistically-significant associations between being a previous smoker and believing that electronic-cigarettes are healthier than conventional cigarettes, and between gender (specifically being male) and reasons for electronic cigarette use (specifically “to quit smoking”). However, the latter result was possibly skewed by a higher response rate from males as opposed to females. Conclusion: The high proportion of previous smokers among electronic cigarette users suggested that quitting smoking was the most common reason individuals take up electronic cigarette usage. It is therefore suggested that studies be done to determine if their use is less harmful than that of conventional cigarettes, and that existing legislation regarding their use in public be modified in light of this evidence. It is also suggested that they be given consideration as a legitimate means of smoking cessation.  

scholarly journals Depression and Nicotine Withdrawal Associations with Combustible and Electronic Cigarette Use

2020 ◽  
Vol 17 (24) ◽  
pp. 9334
Author(s):  
Michele L. Pergadia ◽  
John W. Newcomer ◽  
David G. Gilbert
Keyword(s):  
Population Level ◽  
Population Based ◽  
Epidemiologic Studies ◽  
Nicotine Withdrawal ◽  
Electronic Cigarette ◽  
Cigarette Use ◽  
Dsm V ◽  
Nationally Representative ◽  
And Gender ◽  
The Relationship

Depression is a risk factor for nicotine use and withdrawal. Population level epidemiologic studies that include users of either combustible or electronic cigarette (NICUSER) could inform interventions to reduce nicotine dependence in vulnerable populations. The current study examined the relationship between depression diagnosis (DEPDX), NICUSER, and lifetime rates of DSM-V nicotine withdrawal (NW) symptoms in a nationally representative sample of US adults (N = 979), who answered related questions in surveys administered through GfK’s KnowledgePanel. Over 42% of the sample reported lifetime ever combustible cigarette use, 15.6% electronic-cigarette use, and 45.9% either (NICUSER). Weighted logistic regression analyses (controlling for age and gender) found that DEPDX was associated with 2.3 times increased odds (ratio (OR); 95% Confidence Interval (CI): 1.5–3.5) of being a NICUSER. Regarding risks of NW symptoms among NICUSER, models that additionally controlled for frequency of nicotine use found that DEPDX was significantly associated with increased odds of concentration problems (OR = 2.4; 95% CI: 1.3–4.5) and depressed mood (OR = 2.2; 95% CI: 1.1–4.1) when quitting or cutting down on nicotine use. Results highlight the consistent comorbidity between depression, nicotine use, and symptomatic nicotine withdrawal in a population-based sample of combustible and electronic cigarette users.

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