Prevalence and harm perceptions of hookah smoking among U.S. adults, 2014-2015

Association between history of hookah use and symptoms of postpartum depression: A population-based study

OBJECTIVE

Although several biologic, psychosocial, and behavioral factors have been linked to postpartum depressive symptoms, studies examining the association between non-cigarette tobacco products and symptoms of postpartum depression are currently lacking. This study examined the association between hookah use and postpartum depressive symptoms.

METHODS

A cross-sectional study was conducted using data from the US Centers for Disease Control and Prevention's Pregnancy Risk Assessment Monitoring System 2016-2020. Self-reported data on hookah use in the last 2 years and maternal mental health were captured using a structured questionnaire. Descriptive and inferential statistics were performed.

RESULTS

The final study sample consisted of 106 894 participants. Approximately 8.2% of the participants reported postpartum depressive symptoms and 4.1% reported hookah use in the past 2 years. Compared with those without postpartum depressive symptoms, participants with postpartum depressive symptoms were more likely to be hookah users (5.5% vs 4.0%, P < 0.001). After adjustment for confounders, the odds of having postpartum depressive symptoms were significantly higher among participants who used a hookah in the past 2 years compared with non-users; adjusted odds ratio (95% confidence interval) 1.20 (1.03-1.40); P = 0.022.

CONCLUSION

In a large, population-based sample of US women, hookah use in the past 2 years significantly increased the odds of having postpartum depressive symptoms, independent of potential confounders. This finding underscores the need for healthcare providers to communicate effectively about the health risks of hookah use.

National and Regional Fraction of Cancer Incidence and Death Attributable to Current Tobacco and Water-Pipe Smoking in the Eastern Mediterranean Countries in 2020

INTRODUCTION

We aimed to calculate the Population Attributable Fraction (PAF) of cancers due to tobacco use in the Eastern Mediterranean Region (EMRO), where water-pipe smoking is prevalent but its effect was not considered in previous studies.

AIMS AND METHODS

We applied Levin's formula to estimate PAFs of cancers due to tobacco use (defined as all type tobacco including both cigarette and water-pipe). We also calculated PAF of water-pipe smoking separately. Exposure prevalence data were retrieved from representative national and subnational surveys. Data on cancer incidence and death were also and cancer cases were obtained GLOBOCAN 2020. We also obtained associated relative risks from published meta-analyses.

RESULTS

Of the total 715 658 incident adult cancer cases that were reported in 2020 in EMRO, 14.6% (n = 104 800) was attributable to tobacco smoking (26.9% [n = 92 753]) in men versus 3.3% (n = 12 048) in women. Further, 1.0% of incident adult cancers were attributable to current water-pipe use (n = 6825) (1.7% [n = 5568]) in men versus 0.4% (n = 1257 in women).

CONCLUSIONS

PAFs of cancers due to tobacco smoking in EMRO were higher in our study than previous reports. This could be due to the neglected role of water-pipe in previous studies that is a common tobacco smoking method in EMRO. The proportion of cancers attributable to water-pipe smoking in EMRO might be underestimated due to lack of research on the risk of cancers associated with water-pipe smoking and also less developed cancer registries in EMRO.

IMPLICATIONS

In this study, we found higher PAFs for cancers due to tobacco smoking in the Eastern Mediterranean (EMR) region than previous reports. This difference could be due to ignoring the role of water-pipe smoking in previous studies. In 2020, 1% of incident cancers and 1.3% of cancer-related deaths in EMRO were attributable to water-pipe smoking. We also found a big difference in PAFs of cancers due to tobacco and water-pipe smoking across EMRO countries, with Tunisia, Lebanon, and Jordan having the highest, and Djibouti, Sudan, and Somalia having the lowest proportions of cancers attributable to tobacco and water-pipe smoking.

Indoor Exposure and Regional Inhaled Deposited Dose Rate during Smoking and Incense Stick Burning-The Jordanian Case as an Example for Eastern Mediterranean Conditions

Tobacco smoking and incense burning are commonly used in Jordanian microenvironments. While smoking in Jordan is prohibited inside closed spaces, incense burning remains uncontrolled. In this study, particle size distributions (diameter 0.01-25 µm) were measured and inhaled deposited dose rates were calculated during typical smoking and incense stick-burning scenarios inside a closed room, and the exposure was summarized in terms of number and mass concentrations of submicron (PN_Sub) and fine particles (PM_2.5). During cigarette smoking and incense stick-burning scenarios, the particle number concentrations exceeded 3 × 10⁵ cm^-3. They exceeded 5 × 10⁵ cm^-3 during shisha smoking. The emission rates were 1.9 × 10¹⁰, 6.8 × 10¹⁰, and 1.7 × 10¹⁰ particles/s, respectively, for incense, cigarettes, and shisha. That corresponded to about 7, 80, and 120 µg/s, respectively. Males received higher dose rates than females, with about 75% and 55% in the pulmonary/alveolar during walking and standing, respectively. The total dose rates were in the order of 10¹²-10¹³ #/h (10³-10⁴ µg/h), respectively, for PN_Sub and PM_2.5. The above reported concentrations, emissions rates, and dose rates are considered seriously high, recalling the fact that aerosols emitted during such scenarios consist of a vast range of toxicant compounds.

Prevalence of smoking (cigarette and waterpipe) and its association with obesity/overweight in UAE and Palestine

Aim

This study aimed to assess the prevalence rate of smoking behavior (cigarette and waterpipe) and its association with obesity/ overweight among university students in the United Arab Emirates (UAE) and Palestine.

Methods

A cross-sectional study was conducted at a convenient sample of 10 largest universities in the West Bank- Palestine and Dubai- UAE. In total, 3800 students were randomly selected from the universities, with an 87.6% response rate. A self-administered questionnaire was used to collect the data. The key measures were: waterpipe smoking, weight, height, cigarette smoking, dieting to reduce weight, and perception and knowledge related to tobacco waterpipe smoking (TWP). Body Mass Index (BMI) was calculated using the WHO cutoffs.

Results

The analysis included 3,327 students (54% from the West Bank and 46% from Dubai). About 16% of students in Dubai and 18% of students in the West Bank smoke cigarettes. Quarter (26%) of the students in Dubai and 32% of the students in West Bank smoke water pipes. 17% of students in Dubai and 18% of students in the West Bank reported that they smoke waterpipes to reduce their weight. Waterpipe smoking was found to have a significant positive association with obesity/overweight (p < 0.001).

Conclusions

Smoking is very common among university students. Waterpipe smoking was associated with obesity. More research is still needed in this field to better understand the relationship between cigarette smoking and obesity.

Discussion of waterpipe tobacco smoking on reddit

Objectives

This study aimed to examine public discussions of waterpipe tobacco smoking, as well as the potential associations of different waterpipe flavors with health symptoms, using Reddit data.

Study design

This is an observational infodemiology study.

Methods

Using keywords such as “waterpipe”, “hookah”, and “shisha”, Reddit posts were extracted from Reddit Archive (pushshift.io) between February 1, 2016, and December 31, 2020. Temporal analysis was used to understand the longitudinal trend of the discussions about waterpipe tobacco smoking. Topic modeling using the Latent Dirichlet Allocation (LDA) model was performed to examine the topics on waterpipe tobacco. We estimated the conditional probability of having each health problem for each given waterpipe flavor.

Results

The discussion of waterpipe on Reddit was slowly decreasing from 2016 to 2018 and surged until May 2020. The fruit was the most popular waterpipe flavor and the neurological symptom was the most mentioned health category in waterpipe-related Reddit posts. The most popular topics included “Friends spending time together at night with waterpipe smoking”, “Playing games and smoking waterpipe at a hookah bar”, and “Discussing waterpipe flavors and related products”. Some waterpipe flavors were more associated with certain health problems than others. For example, mint/menthol flavor had a high probability to be associated with symptoms related to throat and mouth.

Conclusion

This study provided longitudinal surveillance of waterpipe tobacco smoking discussed on Reddit. We showed the potential relationship between waterpipe flavors and health symptoms, which provides preliminary evidence about the potential health effects of waterpipe tobacco smoking.

Secondhand smoke exposure from the indoor and outdoor shisha centers located at the perimeter of educational institutions in Malaysia: a cross-sectional study

Shisha is a centuries-old traditional smoking habit rapidly gaining popularity among the students and young adults in Malaysia. The present study evaluated secondhand smoke exposure (SHS) and characteristics of 25 indoor and 25 outdoor shisha centers (SC) operating around the educational institutes such as universities in Petaling Jaya, Malaysia. We observed a significantly higher particulate matter (PM)_2.5 concentration in indoor than outdoor SC (3595.28 μg/m³ and 65.12 μg/m³, p < 0.001, respectively). SCs are offering different flavors to attract clients and exposing students and young professionals to a significantly high concentration of SHS. Such exposures may pose a serious health risk. Therefore, policymakers need to strengthen tobacco guidelines and eliminate loopholes in the sale of shisha by enforcing comprehensive and strict smoke-free laws.

Severe chronic Carboxyhemoglobinemia and polycythemia due to smoking hookah

Acute carbon monoxide (CO) poisoning due to smoking hookah has been reported and may present similarly to other causes of acute carbon monoxide poisoning with nausea, headache, and loss of consciousness [1]. In the acute poisoned patient, immediate removal from the carbon monoxide source is paramount in addition to administration of oxygen and possible hyperbaric oxygen therapy (HBO) in certain situations. However, cases of chronic CO poisoning, treatment options, and long-term adverse health effects are far less reported but may include atherosclerosis and vague neurologic symptoms [2]. We present a case of a patient who chronically smoked hookah creating a condition of chronic carboxyhemoglobinemia which was discovered during work up for unexplained polycythemia. While being seen in the hematology clinic, he was found to have a blood carboxyhemoglobin of level 33.6% despite being asymptomatic. This is the highest recorded hookah-related carboxyhemoglobin concentration in the medical literature; and the significant chronic carboxyhemoglobinemia explained his polycythemia. This case illustrates that a social history is crucial when assessing the patient with severe carboxyhemoglobinemia as HBO is not indicated in chronic CO poisoning in an asymptomatic patient.

Age of initiation of hookah use among young adults: Findings from the Population Assessment of Tobacco and Health (PATH) study, 2013-2017

OBJECTIVE

To prospectively estimate the age of initiation of ever, past 30-day, and fairly regular hookah use among young adults (ages 18-24) overall, by sex, by race/ethnicity, and to explore the association of prior use of other tobacco products with these hookah use behaviors.

METHODS

Secondary data analyses of the first four waves (2013-2017) of the PATH study, a nationally representative longitudinal cohort study of US young adults. Young adult never hookah users at the first wave of adult participation in PATH waves 1-3 (2013-2016) were followed-up into waves 2-4 (2014-2017) to estimate the age of initiation of three outcomes: (i) ever use, (ii) past 30-day use, and (iii) fairly regular hookah use. Weighted interval-censoring Cox proportional hazards regression models were used to examine the differences in the estimated age of initiation by sex and by race/ethnicity while controlling for the total number of other tobacco products ever used at participants' first wave of PATH participation. In addition, to examine if prior use of other tobacco products was associated with the age of hookah initiation behaviors, six additional Cox models are reported for each hookah initiation behaviors.

RESULTS

The largest increase in hookah use occurred between ages 18 and 19: 5.8% for ever use and 2.7% for past 30-day hookah use. By age 21, 10.5%, 4.7% and 1.2% reported initiation of ever, past 30-day and fairly regular hookah use, respectively. There were statistically significance differences in the age of initiation of hookah use behaviors by race/ethnicity.

CONCLUSION

Educational interventions should target young adults before the age of 21, focusing efforts specifically on males, non-Hispanic Blacks and Hispanics, to stall initiation and progression of hookah use behaviors.

Oral and periodontal implications of tobacco and nicotine products

Tobacco use contributes to more mortality and morbidity globally than any other behavioral risk factor. Adverse effects do not spare the oral cavity, with many oral diseases more common, and treatments less successful, in the tobacco-using patient. Many of the oral health effects of cigarette smoking are well established, but other forms of tobacco, including cigars and smokeless tobacco, merit dental professionals' attention. Recently, an expanding variety of new or emerging tobacco and/or nicotine products has been brought to market, most prominently electronic cigarettes, but also including heated tobacco and other noncombustible nicotine products. The use of cannabis (marijuana) is increasing and also has risks for oral health and dental treatment. For the practicing periodontist, and all dental professionals, providing sound patient recommendations requires knowledge of the general and oral health implications associated with this wide range of tobacco and nicotine products and cannabis. This review provides an overview of selected tobacco and nicotine products with an emphasis on their implications for periodontal disease risk and clinical management. Also presented are strategies for tobacco use counselling and cessation support that dental professionals can implement in practice.

Psychosocial Needs of the Parents With Teenagers on Drugs: A Qualitative Study

BACKGROUND

Dependence on drugs causes several problems for the individual, family, and society. Such problems are more evident in teenagers and deeply affect the parents. Perceiving these parents' problems and needs is a way to help them with such problems and enable them to provide more support to their children. This study is an attempt to elaborate on the psychological needs of the parents with adolescents who use drugs.

METHODS

The participants were 19 parents with an adolescent with drug use disorder who were selected purposefully. In-depth and semistructured interviews were conducted face-to-face with the participants. All the interviews were recorded and analyzed by conventional content analysis. Guba and Lincoln's four measures of trustworthiness were observed throughout the study.

RESULTS

Analyses of the interviews revealed three themes, seven categories, and 17 subcategories. The themes were receiving support, need for self-confidence, and need for welfare.

CONCLUSION

For different reasons, parents of adolescents who use drugs find it incumbent upon themselves to support and treat their adolescents. Given the many problems, these parents need a variety of social, educational, emotional, interpersonal, and financial supports.

Prevalence of hookah smoking and associated factors among male high school students in Iraq

BACKGROUND

The use of the hookah-smoking device is increasing at a large scale in the Eastern Mediterranean region. Hookah users are exposed to an array of chemical compounds and may suffer several chronic diseases as a result. The purpose of this study was to determine the prevalence of hookah use among male high school students in the region and to study different associated factors in order to provide local tobacco control officials with an understanding of this public health problem.

METHODS

A convenient non-probability sampling study was conducted among students in three high schools in Al-Karkh district, Baghdad. The study period was from October 2017 till January 2019 and included 847 male students aged 15-18 years old. Using a simple random technique to select the high schools from a list of schools we chose one school from each directorate. Descriptive, chi-square test of significance, bivariate, and multivariate logistic regression analyses of data were carried out for identifying the risk factors associated with hookah smoking among these high school adolescent males.

RESULTS

The overall prevalence of hookah smoking in the last 30 days among male high school students was 46.1% while in the past 6 months it was as high as 85.7%. More than two-thirds (70.6%) of the students thought that hookah smoking was more socially acceptable than cigarette smoking. Factors such as having first heard about it from friends, the media, or the presence of a hookah café near their residence were significantly associated (p > 0.05) with hookah smoking among the students. Similarly, being surrounded by friends who used hookah was also found to be significantly associated with hookah smoking, with an odds ratio of 0.18, 95% CI (0.087-0.394). Hookah smokers were less likely than non-hookah smokers to report its use as forbidden in Islam and more likely to say it is allowed in Islam.

CONCLUSIONS

We found an alarmingly high use of hookah smoking among male high school students in this study. Family members and peers had an important role in the prevention of hookah smoking among these students. There is a need for students to be educated about the toxicity of hookah tobacco smoking and its direct effect on their health.

Prospective estimation of the age of initiation of hookah use among youth: Findings from the Population Assessment of Tobacco and Health (PATH) study waves 1-4 (2013-2017)

OBJECTIVE

This study reports the prospectively estimated age of initiation of susceptibility to, ever, past 30-day, and fairly regular hookah use.

DESIGN

Secondary data analyses of the first four waves (2013-2017) of the PATH study, a nationally representative longitudinal cohort study of US youth (ages 12-17).

METHODS

Youth who were never hookah users at their first wave of participation were identified (n = 16,678; N = 31,136,834). Four outcomes were analyzed, age of first report of: (i) susceptibility to use, (ii) ever use, (iii) past 30-day use, and (iv) fairly regular hookah use. The age of hookah initiation of each outcome was estimated. Weighted interval censoring survival analyses and Cox regression models were conducted to estimate the age of initiation of each hookah use outcome, and to estimate differences in age of initiation by sex and by race, respectively.

RESULTS

Around 11% of youth were classified as susceptible to hookah use by 13 years of age, 8% reported initiating ever hookah use by age 17, almost 10% reported initiating past 30-day hookah use by age 19, and 3% reported initiating fairly regular hookah use by age 20. Females and Hispanics were at higher risk of becoming susceptible to and ever hookah use at earlier ages compared to males and Non-Hispanic White youth.

CONCLUSION

Education, communication campaigns, and proven culturally targeted tobacco interventions that reach youth at ages before they first become susceptible or start using hookah use are needed to prevent the onset of hookah use among vulnerable youth.

Transitions in frequency of hookah smoking among youth and adults: findings from waves 1 and 2 of the Population Assessment of Tobacco and Health (PATH) study, 2013-15

BACKGROUND AND AIMS

The prevalence of hookah smoking has increased in the United States since at least 2010, especially among youth and young adults. This study assessed self-reported reasons for hookah smoking cessation and transition to or maintenance of high-frequency hookah smoking among current hookah smokers.

DESIGN

Separately analyzed data from the Population Assessment of Tobacco and Health (PATH) study, a longitudinal cohort study. Frequency of and reasons for hookah smoking were ascertained at wave 1 (2013-14); frequency of hookah smoking and past-year cessation were ascertained at wave 2 (2014-15). Weighted multivariable logistic and ordinal logistic regression models were fitted to predict hookah smoking cessation and frequency of hookah smoking at wave 2, respectively, accounting for demographic and behavioral risk factors, reasons for hookah smoking and frequency of hookah smoking at wave 1.

SETTING

United States.

PARTICIPANTS

A total of 693 youth and 4400 adult past-year hookah smokers.

MEASUREMENTS

Self-reported tobacco-use patterns and associated health behaviors were measured via audio computer-assisted self-interviews (ACASI).

FINDINGS

At wave 1, 5.9% of youth and 7.5% of adults were past-year hookah smokers. Among all age groups, the leading reasons for hookah smoking were enjoyment of socializing while smoking, the availability of appealing flavors and believing that it was less harmful than cigarette smoking. The odds of cessation were lower for adults who liked hookah flavors [adjusted odds ratio (aOR) = 0.40; 95% confidence interval (CI) = 0.26-0.62] compared with adults who did not like hookah flavors. The odds of transitioning to, or maintaining, monthly or more frequent hookah smoking at wave 2, compared with cessation or less than monthly smoking, were higher for adults who liked hookah flavors [adjusted proportional odds ratio (aPOR) = 2.10; 95% CI = 1.48-2.99 and enjoyed socializing while smoking hookah (aPOR = 1.82; 95% CI =1.13-2.94) compared with adults who did not like hookah flavors or socializing.

CONCLUSION

The availability of appealing flavors, affordability and socialization while smoking hookah in the United States are associated with reduced likelihood of cessation and increased likelihood of high-frequency hookah smoking.

The Recalled Age of Initiation of Multiple Tobacco Products among 26-34 Year Olds: Findings from the Population Assessment of Tobacco and Health (PATH) Study Wave 1 (2013-2014)

This study examined the recalled age of initiation of seven different tobacco products (TPs) and explored potential influences of sex, race/ethnicity, and cigarette-smoking status on tobacco use initiation among adults 26-34 years old using the PATH study.

METHODS

Secondary analyses were conducted in the adult restricted PATH wave 1 (2013-2014) dataset. Weighted statistics are reported using the balanced repeated replication method and Fay's correction to account for PATH's complex study design. Distributions and histograms of the recalled age of initiation of seven different TPs (cigarettes, cigarillos, traditional cigars, filtered cigars, hookah, smokeless tobacco, and e-cigarettes) are reported, as well as the impact of sex and race/ethnicity using Cox proportional hazard models. The impact of cigarette-smoking status on the recalled age of initiation of each tobacco product other than cigarettes was explored.

RESULTS

The highest modes of the recalled age of initiation of cigarette use were at 14-15 and 15-16 years old. The distributions of the recalled age of initiation of cigarillos, traditional cigars, filtered cigars, hookah, and smokeless tobacco occurred later, with the highest modes at 15-16 and 17-18 years old. The distribution of the recalled age of initiation of e-cigarettes had a different shape than the other TPs, with the highest mode reported at 27-28 years old.

CONCLUSION

Due to the ever-changing tobacco marketplace, understanding when contemporary adults aged 26-34 years recall initiating TP use is important and will inform prevention researchers.

Alternative Tobacco Product Use in Critically Ill Patients

Background: Alternative tobacco product (ATP) use has bee linked to critical illness, however, few studies have examined the use of these substances in critically ill populations. We sought to examine ATP use within critically ill patients and to define barriers in accurately assessing use within this population. Methods: We prospectively studied 533 consecutive patients from the Early Assessment of Renal and Lung Injury study, enrolled between 2013 and 2016 at a tertiary referral center and a safety-net hospital. ATP use information (electronic cigarettes, cigars, pipes, hookahs/waterpipes, and snus/chewing tobacco) was obtained from the patient or surrogate using a detailed survey. Reasons for non-completion of the survey were recorded, and differences between survey responders vs. non-responders, self- vs. surrogate responders, and ATP users vs. non-users were explored. Results: Overall, 80% (n = 425) of subjects (56% male) completed a tobacco product use survey. Of these, 12.2% (n = 52) reported current ATP use, while 5.6% reported using multiple ATP products. When restricted to subjects who were self-responders, 17% reported ATP use, while 10% reported current cigarette smoking alone. The mean age of ATP users was 57 ± 17 years. Those who did not complete a survey were sicker and more likely to have died during admission. Subjects who completed the survey as self-responders reported higher levels of ATP use than ones with surrogate responders (p < 0.0001). Conclusion: ATP use is common among critically ill patients despite them being generally older than traditional users. Survey self-responders were more likely than surrogate responders to report use. These findings highlight the importance of improving our current methods of surveillance of ATP use in older adults in the outpatient setting.

Associations of home and workplace vaping restrictions with e-cigarette use among U.S. adults

The current study examined home and workplace vaping restrictions and their associations with e-cigarette use, frequency of e-cigarette use, and exposure to environmental vape aerosol among adults in the U.S. We used data from the 2018 Tobacco Use Supplement to the Current Population Survey to determine these associations. Analysis was done with a multivariable logistic and zero-inflated Poisson regression. Of 46,751 participants, 2.1% currently used e-cigarettes and 89% reported restricted home vaping. Of 19,091 working participants, 83% had worksite vaping restrictions and 6% reported environmental vapor exposure. Respondents with household vaping restrictions had lower odds of current e-cigarette use (full ban: aOR: 0.07, 95% CI: 0.05-0.09; partial ban: aOR: 0.51, 95% CI: 0.40-0.66). The expected number of days of past-month e-cigarette use for those with some household vaping restrictions was significantly fewer than for those without restrictions (full ban: IRR: 0.92, 95% CI: 0.85-0.99; partial ban, IRR: 0.89, 95% CI: 0.81-0.97). Workers with full workplace vaping restrictions had lower odds of workplace environmental vape aerosol exposure than those without a restriction (aOR: 0.21, 95% CI: 0.17-0.25). Vaping restrictions in homes were associated with lower prevalence and frequency of e-cigarette use. Those in worksites with complete vaping bans were less likely to be exposed to environmental aerosol at work. Home e-cigarette restrictions appear to have a stronger association with e-cigarette use behaviors than workplace restrictions.

National Estimates of hospital emergency department visits due to acute injuries associated with hookah smoking, United States, 2011-2019

INTRODUCTION

Hookah (also known as waterpipe) smoking is associated with acute adverse health effects such as vomiting and fainting, symptoms related to carbon monoxide poisoning, and decreased pulmonary function, however, national estimates of hookah-related acute injuries are not currently available in the scientific literature. This study provides national estimates of United States hospital emergency department visits due to hookah-related acute injuries.

METHODS

We analyzed 2011-2019 data from the National Electronic Injury Surveillance System to calculate national estimates of emergency department visits due to hookah-related acute injuries. National Electronic Injury Surveillance System data were gathered from approximately 100 United States hospitals selected as a probability sample of approximately 5000 hospitals with emergency departments. Each case contains information abstracted from all emergency department records involving injuries associated with consumer products. All individuals admitted to emergency departments who sustained hookah-related acute injuries were included in the study.

RESULTS

During 2011-2019, an estimated 1371 (95% confidence interval: 505-2283) United States hospital emergency department visits were related to hookah-related acute injuries. The most common injuries were sustained from dizziness/light-headedness and syncopal episodes (54.8%), followed by burns (41.5%). Young adults aged 18-24 years accounted for 66.8% of hookah-related acute injuries admitted to United States emergency departments.

CONCLUSIONS

This study provides national estimates of hospital emergency department visits due to hookah-related acute injuries. We found that hookah smoking related AIs mostly occurred among young adults. Study findings may inform public health policy and educational intervention efforts to prevent these events and complement other acute injury surveillance systems, such as the National Poison Data System.

Impact of Graphic Warning Messages on Intentions to Use Alternate Tobacco Products

Graphic cigarette warnings increase quit attempts. Perceived message effectiveness and message avoidance are predictive of later quit attempts. We sought to examine whether randomized exposure to warning messages would inadvertently increase intentions to use alternate tobacco products while enhancing attempts to quit cigarettes. An online survey of 1392 adult smokers in the US asked participants to rate six randomly selected tobacco warnings (from a set of 319) on perceived effectiveness and avoidance intentions. These two indicators of message effectiveness were calculated at the message-level and then at the individual campaign-level to facilitate causal inference. After viewing a message campaign of six warning messages, participants indicated their intentions to use alternate tobacco products. Sixty-eight percent of participants reported some intention to use e-cigarettes and intentions to use other alternate tobacco products ranged from 31% to 40%. Campaigns of messages eliciting higher avoidance increased the odds of intending to use hookah (aOR: 4.32), smokeless tobacco (aOR: 4.88), and snus (aOR: 8.06), but not the intention to use electronic cigarettes. These relationships are mediated by intentions to quit smoking (all p <.05). Viewing campaigns with higher campaign-level perceived effectiveness increased the intentions to quit, which in turn increased intentions to try alternate tobacco products. Our findings increase the tobacco control community's understanding of unintended consequences of graphic tobacco warnings.

Longitudinal pathways of exclusive and polytobacco hookah use among youth, young adults and adults in the USA: findings from the PATH Study Waves 1-3 (2013-2016)

OBJECTIVE

The goal of this study is to examine cross-sectional rates of use and longitudinal pathways of hookah use among US youth (ages 12-17), young adults (ages 18-24), and adults 25+ (ages 25 and older).

DESIGN

Data were drawn from the first three waves (2013-2016) of the Population Assessment of Tobacco and Health Study, a nationally representative, longitudinal cohort study of US adults and youth. Respondents with data at all three waves (youth, n=11 046; young adults, n=6478; adults 25+, n=17 188) were included in longitudinal analyses.

RESULTS

Young adults had higher ever, past 12-month (P12M) and past 30-day cross-sectional prevalence of hookah use at each wave than youth or adults 25+. The majority of Wave 1 (W1) hookah users were P12M users of other tobacco products (youth: 73.9%, young adults: 80.5%, adults 25+: 83.2%). Most youth and adult W1 P12M hookah users discontinued use in Wave 2 or Wave 3 (youth: 58.0%, young adults: 47.5%, adults 25+: 63.4%). Most W1 P12M hookah polytobacco users used cigarettes (youth: 49.4%, young adults: 59.4%, adults 25+: 63.2%) and had lower rates of quitting all tobacco than exclusive hookah users or hookah polytobacco users who did not use cigarettes.

CONCLUSIONS

Hookah use is more common among young adults than among youth or adults 25+. Discontinuing hookah use is the most common pathway among exclusive or polytobacco hookah users. Understanding longitudinal transitions in hookah use is important in understanding behavioural outcomes at the population level.

Hookah Susceptibility and Transitions Over the First Year of College

OBJECTIVE

There has been a growth in popularity of hookah (or waterpipes) among American college students, despite the health risks. This study investigated factors that predict hookah susceptibility and whether hookah susceptibility predicts hookah initiation and continued use.

METHOD

The study established a cohort of 529 incoming college freshmen (51.6% female) who completed an online survey approximately 1 week before their arrival to a large U.S. university. Students were sent four follow-up surveys throughout the 2016-2017 academic year; 90.5% completed at least one follow-up survey.

RESULTS

A total of 13.2% of the sample had used hookah at baseline and 9.9% initiated hookah use over the course of their freshman year. Among the nonusers who had no hookah susceptibility at baseline, 30.0% came to indicate some susceptibility. Multivariable logistic regression indicated that the personality construct conscientiousness was protective against becoming susceptible, whereas coming from a rural part of the state was a risk factor. Susceptibility predicted both continued use among the baseline ever-users and initiation among the baseline never-users.

CONCLUSIONS

These findings highlight the role of susceptibility in the trajectory of hookah use among U.S. college students.

Perceived Harms of Waterpipe Tobacco Heating Sources Among Young Adult Waterpipe Tobacco Smokers

Background. Waterpipe tobacco smoking is associated with many negative health outcomes due to toxicants produced by heating the tobacco using charcoal or electrical heaters. Little is known about how young adult waterpipe tobacco smokers perceive harms of these heating sources. Aims. To examine young adult waterpipe tobacco smokers' perceived harms of electrical heaters and charcoal to heat waterpipe tobacco. Method. This online cross-sectional study enrolled 18- to 32-year-olds who smoked waterpipe tobacco within the past 30 days. Participants completed measures assessing, for each heating source, amount and knowledge of toxicants released (e.g., carbon monoxide, cancer-causing chemicals), perceived safety, worry about inhaling toxicants, perceived health risk, desire to quit, and intention to smoke in the next month. Question order for knowledge of and perceived harms was counterbalanced for each heating source. Results. Analyses were based on responses from 199 participants. Perceived harms for both heating sources were average to low. Despite some question order effects, participants viewed charcoal as more harmful than electrical heaters. Participants knew more about chemicals released from charcoal than electrical heaters. Greater knowledge of chemicals released by both heating sources correlated positively with perceived harms. Perceived harms were associated with a stronger desire to quit, yet unrelated with likelihood of smoking waterpipe during the next month. Discussion. Many young adult waterpipe tobacco smokers view charcoal as more harmful than electrical heaters, although knowledge about harms for each heating source is poor. Conclusion. Interventions are needed to inform the public about harms of waterpipe heating sources in order to curb use.

Trends and Correlates of Waterpipe use in the European Union: Analysis of Selected Eurobarometer Surveys (2009-2017)

INTRODUCTION

The aim of this study was to assess the trends and correlates of waterpipe use between 2009 and 2017 in the 28 European Union (EU) member states.

METHODS

We analyzed data from wave 72.3 (2009, n = 27788); wave 77.1 (2012, n = 26751); wave 82.4 (2014, n = 27801); and wave 87.1 (2017, n = 27901) of the Eurobarometer survey. Representative samples of EU residents aged ≥15 years were asked to report ever use of waterpipe. Regular waterpipe use, i.e., at least once a month was also assessed in 2017. Associations of ever and current use with sociodemographic factors were assessed with multilevel logistic regression.

RESULTS

The prevalence of ever waterpipe use in the EU increased from 11.6% in 2009 to 16.3% in 2014 before dropping to 12.9% in 2017, but there was wide variation between EU member states, ranging from 2.3% (Croatia, 2009) to 41.7% (Latvia, 2017). Regular waterpipe use was highest in Austria (3.6%), Latvia (2.5%) and Belgium (2.0%) in 2017. Respondents aged 15-24 years were 11.43 times more likely (95% confidence interval [CI] = 10.71 to 12.21) to have ever used waterpipe compared to those 55 years and older. Regular and ever waterpipe use were also more likely among current and former cigarette smokers. Males (adjusted odds ratio [aOR] = 1.64; 95% CI = 1.58 to 1.70) and those living in urban areas (aOR = 1.36; 95% CI = 1.30 to 1.42) were more likely to have ever used waterpipe.

CONCLUSION

A substantial proportion of EU citizens, especially young men, have tried waterpipe. Regular use is relatively limited, but more systematic surveillance is required to monitor trends across the EU.

IMPLICATIONS

Data on waterpipe use in the European Union are scarce. The prevalence of ever waterpipe use in the EU increased from 11.6% in 2009 to 16.3% in 2014 before dropping to 12.9% in 2017, with wide variation between EU member states. Males, those living in urban areas, younger respondents, and current or former cigarette smokers were more likely to be ever or regular users of waterpipe.

Adoption of electronic-cigarette-free, hookah-free and American College Health Association recommended tobacco-free policies among a national sample of postsecondary educational institutions

Objective: To examine the prevalence of various types of tobacco-free policies among a US national sample of postsecondary educational institutions (PEIs). Participants: A national sample of US PEIs (N = 605) attended by the participants of the NEXT Generation Health Study. Methods: Tobacco policies of these PEIs were reviewed to determine if they were e-cigarette-free (yes/no), hookah-free (yes/no), and ACHA-recommended tobacco-free (yes/no) in June-December 2017. Logistic regression models were used to examine the relationships between institutional characteristics and tobacco policies. Results: Overall, 39.2, 26.0, and 20.0% of the sample adopted e-cigarette-free, hookah-free, and ACHA-recommended tobacco-free policies, respectively. Proprietary PEIs (vs. public) were less likely to have ACHA-recommended tobacco-free policies, while PEIs in the South and Midwest (vs. West) were more likely to have ACHA-recommended tobacco-free policies (p < 0.05). Conclusions: Most sampled PEIs did not have ACHA-recommended tobacco-free polices. Subsequent research needs to investigate how ACHA-recommended tobacco policies influence tobacco use.

Associations between frequency of cigarette and alternative tobacco product use and depressive symptoms: A longitudinal study of young adults

The association between cigarette use and depression has been documented in many studies. Fewer studies have examined other tobacco products such as electronic cigarettes (e-cigarettes) and hookah that are used by young adults. This study examined whether increased frequency of use of these products was associated with depressive symptoms in a cohort of n = 5236 Texas college students followed from 2014 to 2017. To analyze the longitudinal data, a hierarchical model was used. Model results showed that increased frequency of single product use of cigarettes, refillable e-cigarettes and hookah was associated with depressive symptoms. Refillable and disposable e-cigarettes were examined separately and results did not provide evidence of a different association for each type of e-cigarette when cigarettes were not also used. Dual use of cigarettes with another product was also examined. Dual use was associated with higher depressive symptoms for most product combinations. However, infrequent dual use of disposable e-cigarettes and cigarettes may not be associated with depressive symptoms. Suggestions for further research are included.

Comparison of peri-implant clinical and radiographic inflammatory parameters among cigarette and waterpipe (narghile) smokers and never-smokers

BACKGROUND

The authors hypothesized that peri-implant clinical and radiographic inflammatory parameters are worse in waterpipe smokers (WS) and cigarette smokers (CS) compared with never-smokers (NS). The aim of the present retrospective study is to compare peri-implant clinical and radiographic inflammatory parameters among WS, CS, and NS.

METHODS

Forty-four CS (group 1), 41 WS (group 2), and 43 NS (group 3) were included. Demographic data were collected using a questionnaire. Peri-implant plaque index (PI), bleeding on probing (BOP), and probing depth (PD) were measured, and crestal bone loss (CBL) was assessed on standardized digital radiographs. Sample size was estimated, and statistical analyses were performed using Kruskal-Wallis and Wilcoxon rank-sum tests. For multiple comparisons, Bonferroni post hoc test was performed. P values < 0.05 were considered statistically significant.

RESULTS

Peri-implant PI and PD were higher in groups 1 (P < 0.05) and 2 (P < 0.05) compared with group 3. Peri-implant BOP was significantly higher in group 3 compared with individuals in groups 1 (P < 0.01) and 2 (P < 0.01). Peri-implant total marginal bone loss was significantly higher in groups 1 (P < 0.05) and 2 (P < 0.05) compared with group 3. There were differences in PI, BOP, PD, and CBL among participants in groups 1 and 2.

CONCLUSIONS

Peri-implant soft tissue inflammatory parameters and CBL are worse in CS and WS compared with NS. There is no difference in these parameters between CS and WS.

Waterpipe smoking: the pressing need for risk communication

Introduction: Waterpipe (WP) smoking is an important public health problem that is rapidly evolving globally. Much of WP spread among youth is perpetuated by a misperception of reduced harms compared to cigarettes. Increasing awareness about WP smoking harms through health warning labels (HWLs) represents a promising policy and regulatory strategy to curb WP smoking. Areas covered: Peer-reviewed publications indexed in PubMed and CINAHL were searched in March 2019. This review focuses on the current knowledge of WP smoking characteristics, its spread and patterns of use globally, and some of the major WP-related health effects. This knowledge is utilized to advance a promising policy and regulatory avenue to curb WP smoking by increasing awareness of its potential harms through HWLs. It also addresses product configuration and unique features that influence the adaptation of HWLs for WP smoking. Expert opinion: HWLs are effective in communicating smoking-related risks to WP smokers in a way that affects their smoking behavior and experience as well as interest in quitting. Although based on limited data, the WP device appears to be a promising location for HWLs as it offers prolonged contact with smokers and those surrounding them.

Respiratory health and quality of life in young exclusive, habitual smokers - a comparison of waterpipe smokers, cigarette smokers and non-smokers

Purpose

Waterpipe (WP) use has become a global trend in young populations. However, there are few well-controlled studies focusing specifically on the chronic effects of exclusive WP use on young adults’ respiratory health. We sought to compare in young adults the burden of respiratory symptoms in regular WP smokers (WPS) relative to regular cigarette smokers (CS, positive controls) and non-smokers (negative controls); and to evaluate differences in health-related quality of life between the three groups.

Method

We implemented a cross-sectional survey in college campuses across four countries (Egypt, Jordan, Morocco and Oman). Purposive sampling was employed to identify habitual (regular) healthy WPS (smoked 3 or more WP per week for 3 or more years); CS (smoked 5 or more cigarettes daily for 3 or more years); and non-smokers. Respiratory symptoms were assessed using the European Community Respiratory Health Survey and the American Thoracic Society and the Division of Lung Diseases Questionnaire. Health-related quality of life was measured using the Short-Form 12. Demographic, environmental and lifestyle factors also were measured.

Result

The analytic sample included 135 WPS, 303 CS, and 300 non-smokers. Either tobacco group had significantly greater proportions of males than the non-smoker group. A significantly lower proportion of non-smokers (than either tobacco group) was overweight or obese. Average numbers of reported respiratory symptoms were 5.1, 5.8, and 2.9 in WPS, CS, and non-smokers, respectively. In multivariable regressions controlling for environmental exposures, body mass index, and physical activity, WPS and CS exhibited significantly higher rates of respiratory symptoms than non-smokers (1.6 times greater and 1.9 times greater rate of respiratory symptoms than non-smokers, respectively). Non-smokers reported significantly higher scores for general health relative to either WPS or CS.

Conclusion

Relative to their young non-smoking counterparts, young habitual WPS exhibit a significant burden of respiratory symptoms that is comparable to that observed with CS. Young WPS (and CS), despite their age, may be well on their way to developing respiratory disease.

Waterpipe tobacco use in college and non-college young adults in the USA

BACKGROUND

Waterpipe tobacco smoking (WTS or 'hookah') is common among adolescents and college students in the USA. However, there has not yet been a large-scale, nationally representative study independently examining WTS among young adults who are not in college.

OBJECTIVE

This study sought to examine associations between attitudes, normative beliefs, certain socio-demographic factors and current WTS among young adults not in college and compare them to young adults in college.

METHODS

A total of 3131 US adults ages 18-30 completed an online survey about WTS behaviour, attitudes, normative beliefs and relevant socio-demographic factors. Multivariable logistic regression was used to examine independent associations between these variables and current WTS stratified by student status.

RESULTS

Ever WTS was reported by 29% of young adults not in college and by 35% of those in college, and current use rates were 3 and 7%, respectively. Multivariable models demonstrated that positive attitudes and perceived peer acceptability of WTS were significantly associated with increased current WTS for both young adults not in college [adjusted odds ratio (AOR) = 2.72; 95% CI: 2.00-3.71 and AOR = 2.02; 95% CI: 1.50-2.71, respectively] and young adults in college (AOR = 3.37; 95% CI: 2.48-4.58 and AOR = 2.05; 95% CI: 1.49-2.83, respectively). The magnitude of these associations was not significantly different when comparing individuals in college and not in college.

CONCLUSIONS

Among young adults, WTS is common in non-college-based populations as well as in college-based populations. Therefore, prevention programming should extend to all young adults, not only to those in college.

Sexual risk behavior and substance use among young, diverse women seeking care at a reproductive health clinic

BACKGROUND

To describe sexual risk behavior, alcohol (and other substance) use, and perceived health promotion needs among young adult women seeking care from an urban reproductive health care clinic in the Northeastern United States, and to examine if these needs differ by race and ethnicity.

METHODS

Women 18-29 years old presenting for a routine medical visit were invited to participate. Of 486 eligible women, 466 (96%) agreed to participate and completed a brief survey on a tablet computer. Most of the sample (53%) identified as non-Hispanic White. One-quarter (25%) identified as Hispanic/Latina. A smaller proportion of women identified as African American (19%).

RESULTS

One-third (31%) of women reported a history of sexually transmitted infection (STI), and women reported infrequent condom use with recent sexual partners. Regarding behavioral health needs, nearly three-quarters of women (72%) reported regular alcohol use, approximately one-third had used marijuana (37%) or tobacco (33%) in the last month, and 19% reported clinically significant depressive symptoms in the last two weeks. Women reported moderate-to-strong interest in receiving information about relationships and sexual health; however, the majority were not interested in information about their substance use. Hispanic and African-American women were more likely to report STI history despite reporting fewer sexual partners than non-Hispanic White women. Minority women also reported significantly less alcohol and cigarette use, but more water pipe tobacco use, and reported significantly greater interest in interventions to promote sexual health. Hispanic women also evidenced significantly elevated rates of depressive symptoms, with 26% of Hispanic women reporting a clinically significant level of depressive symptoms.

CONCLUSIONS

Reproductive health centers are opportune settings to address a broad range of healthcare needs, including sexual health, substance use, and mental health. These centers engage a diverse group of women, which is important given observed disparities in health outcomes based on race/ethnicity. Young women, particularly racial and ethnic minority women, report the most interest in services addressing sexual and relationship health.

Taking a Stand: An Untapped Strategy to Reduce Waterpipe Smoking in Adolescents

INTRODUCTION

Waterpipe use amongst adolescents is on the rise globally. Thus, there is a need to understand adolescents 'attitudes towards and perceptions of waterpipe use in order to develop specific interventions against this form of tobacco use.

METHODS

Focus group interviews were conducted among 37 Swedish adolescents (14 boys and 23 girls) from grades 10 to 12. Waterpipe users and nonusers were interviewed separately, with two groups each for users and nonusers. Interviews were audiotaped, transcribed, and thematically analyzed using content analysis.

RESULTS

Six themes emerged including taking a stand, weighing the risks, Lack of knowledge, Social context, Waterpipe new and unknown, and Family influence. Taking a stand was about being able to stand up for one's owns views rather than giving in to peer pressure to smoke waterpipe. Participants feared harming others via secondhand smoke and expressed criticism of the tobacco industry. Participants considered the health consequences and feared addiction. Lack of knowledge concerning health effects of waterpipe smoking due to the unavailability of credible information was also reported. Waterpipe smoking was considered a social event carried out in the company of friends. Perceived as novel and fun, waterpipe was smoked out of curiosity. Parents' and siblings' smoking behaviors influenced adolescent waterpipe use.

CONCLUSION

Adolescents reported lacking information about the possible health effects of waterpipe smoking and that gaining such knowledge would make it easier for them to take a stand and refuse smoking waterpipe. Prevention strategies should focus on providing adolescents with factual information about the dangers of waterpipe use.

Epidemiology and Adverse Consequences of Hookah/Waterpipe Use: A Systematic Review

Hookah smoking is becoming a popular trend globally. Waterpipe smoking is the second most prevalent form of alternate tobacco products. The rapid increase in hookah use is because of the misconception prevalent in society that hookah smoking is less harmful than cigarette smoking. Smoking ban policies had given impetus of switching from cigarette smoking to alternate tobacco products like waterpipe. Hookah users regard hookah to be more socially acceptable, less stigmatizing with flavors and to alleviate cigarette craving symptoms. Newer basic science research on animal models and human cells has shown consistently mutagenic, oxidative, and inflammatory changes that could cause possible health effects of premalignant oral lesion and chronic diseases like atherosclerosis and chronic obstructive pulmonary disease. Studies on the chemistry of waterpipe smoke had shown alarming results with the smoke containing seven carcinogens, 39 central nervous system depressants, and 31 respiratory irritants. Enormous data exist showing waterpipe smoking causing various health effects. Hookah smoking effects on cardiovascular disease is additive with hookah containing a significant amount of nicotine, tar, and heavy metals causing both acute and chronic effects on the cardiovascular system. These effects include increased heart rate, blood pressure, prevalence of coronary heart disease, heart failure, ST-segment elevation myocardial ischemia, recurrent ischemia, and worse outcomes including mortality related to these diseases. The objectives of the review are to assess the factor associated with the increasing use of hookah, its health effects, options for hookah smoking cessation, and public health policy initiatives to mitigate waterpipe use.

Personalized periodontal treatment for the tobacco- and alcohol-using patient

The use of various forms of tobacco is one of the most important preventable risk factors for the incidence and progression of periodontal disease. Tobacco use negatively affects treatment outcomes for both periodontal diseases and conditions, and for dental implants. Tobacco-cessation programs can mitigate these adverse dental treatment outcomes and may be the most effective component of a personalized periodontal treatment approach. In addition, heavy alcohol consumption may exacerbate the adverse effects of tobacco use. In this review, the microbiology, host/inflammatory responses and genetic characteristics of the tobacco-using patient are presented as a framework to aid the practitioner in developing personalized treatment strategies for these patients. These personalized approaches can be used for patients who use a variety of tobacco products, including cigarettes, cigars, pipes, smokeless tobacco products, e-cigarettes and other tobacco forms, as well as patients who consume large amounts of alcohol. In addition, principles for developing personalized tobacco-cessation programs, using both traditional and newer motivational and pharmacological approaches, are presented.

Sexual and gender minority cigarette smoking disparities: An analysis of 2016 Behavioral Risk Factor Surveillance System data

We examined the association between lesbian, gay, bisexual, and transgender (LGBT) identity, cigarette and e-cigarette use, and potential risk factors in the United States. Using data from 198,057 adults in 26 states in the 2016 Behavioral Risk Factor Surveillance System (BRFSS), we estimated the prevalence of cigarette use, e-cigarette use, and potential risk factors by gender identity and sexual identity. Overall and sex-stratified bivariate and multivariate logistic regressions examined whether the relationship between sexual and gender identity and cigarette and e-cigarette use persisted after adjusting for demographics, socio-economic status, and other unhealthy behaviors. After adjusting for covariates, gender minority identity was no longer associated with increased likelihood of currently smoking cigarettes and ever use of e-cigarettes. Sexual minority identity continued to be significant after adjusting for covariates, indicating that sexual identity disparities in cigarette and e-cigarette use are not fully explained by these factors. Findings varied by identity. Compared to their straight peers, likelihood of tobacco product use among LGB individuals varied between sexes, by product, and by sexual identity (gay/lesbian versus bisexual). More research is needed to understand the mechanisms that influence diverse patterns of cigarette and e-cigarette use among sexual and gender minority adults.

Peri-implant soft-tissue parameters and crestal bone levels among narghile smokers and nonsmokers

This retrospective convenient sample case-control study investigated the peri-implant soft-tissue inflammatory parameters and crestal bone loss (CBL) among narghile smokers (NS) (Group I) and nonsmoking controls (Group II). Demographic data were collected using a questionnaire. Peri-implant plaque index (PI), bleeding-on-probing (BOP) and pocket-depth (PD) were assessed; and peri-implant CBL was measured on standardized digital bite-wing radiographs. Sample-size was estimated and statistical analysis were done using Mann-Whitney U-test. Level of significance was set at p < .05. Seventy-two male individuals (35 in Group I and 37 in Group II) were included. The mean age of individuals in Groups I and II were 45.3 ± 5.2 and 42.6 ± 3.3 years, correspondingly. In Group 1, the duration and daily frequency of narghile smoking was 17.5 ± 1.6 years and 6.3 ± 0.5 times per day, respectively. The mean duration of each narghile smoking session was 28.5 ± 0.6 min. The mean peri-implant PI (p < .05), PD (p < .05) and mesial (p < .05) and distal (p < .05) CBL were statistically significantly higher among individuals in Group I compared with Group II. BOP was significantly higher in Group II than Group I (p < .05). Narghile smoking increases peri-implant soft-tissue inflammation and CBL.

The role of sociodemographic factors associated with waterpipe smoking among male adolescents in western Iran: A cross-sectional study

INTRODUCTION

Waterpipe smoking (WPS) is an increasingly popular leisure activity among young people in Iran. The purpose of this study was to identify the role of sociodemographic factors associated with WPS among male adolescents in Iran.

METHODS

The study used a cross-sectional design. It included 730 high school male students (Grades 10–12) recruited through multistage random sampling conducted in 2017 in Hamadan city, western Iran. The self-administered questionnaires included information on demographic variables and behavioral risk factors related to WPS. Descriptive statistics and multinomial logistic regression modeling were conducted using SPSS.

RESULTS

The student mean age, and standard deviation (SD), and age at WPS initiation were 16.41 (0.84) and 13.31 (2.43) years, respectively. The percentages of never, former and current WPS were 37.3%, 36.4% and 26.3%, respectively. We found that ever cigarette smoking (OR=5.14, 95% CI: 2.56–10.32) and WPS family (OR=2.55, 95% CI: 1.40–4.64) were significantly associated with former WPS. Furthermore, being 18 years, studying in technical fields, reporting ever and current smoking of cigarettes and family usage of WP were significantly associated with current WPS. Friends with WPS (OR= 0.50, 95% CI: 0.34–0.72) however played a protective role on former WPS.

CONCLUSIONS

The results indicate that the prevalence of former and current WPS was high in Hamadan city. Thus, designing and implementing interventions for increasing students’, friends’ and family’s awareness regarding the harms of WPS and cigarette smoking are necessary to facilitate behavior change.

Social and substance use correlates of adult hookah use, 2016

Introduction

Hookah prevalence has been increasing in U.S. adults. This study examines correlates and frequency of hookah use in a national sample of U.S. adults (18–44 years).

Methods

Data were drawn from Wave 10 (October 2016) respondents aged 18–44 years from the Truth Initiative Young Adult Cohort Study (n=4,085). Weighted bivariate analyses were used to estimate correlates and frequency of hookah use, and differences between past 30-day and noncurrent hookah users on social and substance use (alcohol, marijuana, and other drugs) correlates.

Results

Twenty percent of the sample ever used hookah, and 2% used hookah in the past 30 days. Compared to never users and non-current users, a significantly greater proportion of ever and past 30-day hookah users reported past 30-day e-cigarette, tobacco, and substance use (p’s<0.01). Eighty-one percent of past 30-day hookah users had at least one close friend who also used hookah, and 35% self-identified as social/occasional smokers. The majority (68%) of past 30-day users reported hookah use on fewer than five of the past 30 days, and 58% engaged in two or more hookah sessions on those days.

Conclusions

Ever and past 30-day hookah use are associated with concurrent tobacco, e-cigarette, and substance use. They are also correlated with peer hookah use and self-identification as a social/occasional smoker. Even infrequent hookah sessions can expose users to health risks. Research identifying contexts in which hookah is used and how it is used with other substances is needed to inform interventions to reduce hookah use.

Comparing harm beliefs and risk perceptions among young adult waterpipe tobacco smokers and nonsmokers: Implications for cessation and prevention

Introduction

Very little is known about how waterpipe tobacco smokers and nonsmokers compare on harm beliefs about waterpipe tobacco smoking (WTS) and how these beliefs are related to risk appraisals and intentions to engage in WTS. We investigated these issues among young adult waterpipe tobacco smokers, susceptible nonsmokers, and non-susceptible nonsmokers.

Methods

Young adults ages 18 to 30 who smoked waterpipe tobacco during the last 30 days or never used waterpipe tobacco were recruited online through Turkprime. Nonsmokers were grouped as susceptible or not. Participants completed measures of harm beliefs, risk appraisals (i.e., perceived risks and worry), and desire to quit among smokers or willingness/curiosity to try waterpipe among nonsmokers.

Results

Analyses were based on 247 smokers and 418 nonsmokers. Smokers endorsed most strongly harm beliefs that portrayed WTS as safe, followed by susceptible and then non-susceptible nonsmokers. Most harm beliefs were significantly related to risk appraisals, yet weakly associated with desire to quit or willingness/curiosity to try waterpipe tobacco, except among susceptible nonsmokers.

Conclusions

Greater efforts are needed to correct maladaptive beliefs about WTS harms, especially among smokers. Among susceptible nonsmokers, harm beliefs may be more influential in predicting willingness to try WTS than risk appraisals.

•

Waterpipe tobacco smokers view waterpipe tobacco smoking as safer than nonsmokers.

•

Perceived risk correlates with many harm beliefs about waterpipe tobacco smoking.

•

Among smokers, desire to quit is related more with perceived risk than harm beliefs.

•

Among susceptible nonsmokers, intent to try waterpipe relates to many harm beliefs.

Worldviews and trust of sources for health information on electronic nicotine delivery systems: Effects on risk perceptions and use

Public health agencies, the news media, and the tobacco/vapor industry have issued contradictory statements about the health effects of electronic nicotine delivery systems (ENDS). We investigated the levels of trust that consumers place in different information sources and how trust is associated with cultural worldviews, risk perceptions, ENDS use, and sociodemographic characteristics using a nationally representative sample of 6051 U.S. adults in 2015. Seventeen percent of adults were uncertain about their trust for one or more potential sources. Among the rest, the Centers for Disease Control and Prevention (CDC), health experts, and the Food & Drug Administration (FDA) elicited the highest levels of trust. In contrast, tobacco and vapor manufacturers, vape shop employees, and, to a lesser extent, the news media were distrusted. Adults who had higher incomes and more education or espoused egalitarian and communitarian worldviews expressed more trust in health sources and the FDA, whereas those identifying as non-Hispanic Black or multiracial reported less trust. Current smokers, those who identified as non-Hispanic Black or other race, had lower incomes, and espoused hierarchy and individualism worldviews expressed less distrust toward the tobacco and vapor industry. Greater trust (or less distrust) toward the tobacco and vapor industry and an individualism worldview were associated with perceptions of lower risk of premature death from daily ENDS use, greater uncertainty about those risks, and greater odds of using ENDS. Public health and the FDA should consider consumer trust and worldviews in the design and regulation of public education campaigns regarding the potential health risks and benefits of ENDS.

Young adult waterpipe tobacco users' perceived addictiveness of waterpipe tobacco

INTRODUCTION

Young adults generally do not perceive waterpipe tobacco smoking (WTS) to be addictive. Underlying reasons for these false perceptions have received limited research attention and little is known about effective WTS prevention messaging. This study examined perceptions of the addictiveness of WTS among young adults and ascertained their feedback on WTS prevention message content.

METHODS

Young adult (n=44, Mean [M] age 25.3, SD 2.7, range 18-30) waterpipe tobacco users were recruited online for a cross-sectional survey. Closed-ended measures assessed demographics, waterpipe use, other tobacco consumption, and perceived addictiveness of WTS. Open-ended items assessed perceptions of WTS and ascertained feedback on WTS prevention message content. Quantitative data were analyzed descriptively. Open-ended data were coded to identify emerging themes.

RESULTS

Participants reported low perceived addictiveness of WTS (Mean 2.0, SD 0.9, range 1- not at all, 4 - very), perceived chances of becoming addicted (Mean 3.0, SD 1.6, range 1- no chance, 7- certain), and desire to quit (Mean 3.0, SD 1.8, range 1- not at all, 7- very). In open-ended responses, participants indicated social WTS does not lead to addiction and believe it is easy to quit. Some expressed concerns that WTS addiction may lead to health harms, social stigma, and financial costs. Participants indicated messages using vivid imagery and conveying negative health effects could motivate cessation.

CONCLUSIONS

Young adults view that WTS is not addictive, particularly related to use in social settings. Research can build from this study by developing and testing messages to motivate WTS cessation in young adults.

Carbon monoxide poisoning from waterpipe smoking: a retrospective cohort study

OBJECTIVE

Waterpipe smoking may increasingly account for unintentional carbon monoxide poisoning, a serious health hazard with high morbidity and mortality. We aimed at identifying waterpipe smoking as a cause for carbon monoxide poisoning in a large critical care database of a specialty care referral center.

METHODS

This retrospective cohort study included patients with a history of exposure to waterpipe smoking and carbon monoxide blood gas levels >10% or presence of clinical symptoms compatible with CO poisoning admitted between January 2013 and December 2016. Patients' initial symptoms and carbon monoxide blood levels were retrieved from records and neurologic status was assessed before and after hyperbaric oxygen treatment.

RESULTS

Sixty-one subjects with carbon monoxide poisoning were included [41 males, 20 females; mean age 23 (SD ± 6) years; range 13-45] with an initial mean carboxyhemoglobin of 26.93% (SD ± 9.72). Most common symptoms included syncope, dizziness, headache, and nausea; 75% had temporary syncope. Symptoms were not closely associated with blood COHb levels.

CONCLUSION

CO poisoning after waterpipe smoking may present in young adults with a wide variability of symptoms from none to unconsciousness. Therefore diagnosis should be suspected even in the absence of symptoms.

Toxicological impact of waterpipe smoking and flavorings in the oral cavity and respiratory system

Waterpipe smoking (WS), an emerging trend has major health concerns. It is prevalent worldwide as a recreational activity both indoors and outdoors. The aim of this review was to assess the impact of waterpipe smoke on the oral and respiratory system (oral cavity and pulmonary tissues). A number of studies have shown that periodontal health status is compromised in waterpipe smokers when compared with nonsmokers. Some studies have associated WS with oral premalignant and malignant lesions; however, due to the poor quality of these studies, the presented outcomes should be interpreted with caution. Although cigarette smoking has been considered as a potential risk factor for dental caries; there are no studies in indexed literature that have shown an association to exist between dental caries and WS. Inhaled waterpipe smoke imposes oxidative stress and inflammatory responses and compromises the ventilatory capacity of the lungs and may lead to an increased risk of decline in lung function. WS may cause oral and pulmonary diseases, such as periodontal disease and chronic obstructive airway disease, respectively. The association between WS and development of dental caries and oral pre-cancer and their relationships with chronic airways disease requires investigations. This review discusses the current evidence of waterpipe smoke effects on the oral health and respiratory system based on basic and clinical science and provides future directions for research and regulatory science on how WS can affect the oral cavity and the respiratory/pulmonary system.

University students' perceived risk of and intention to use waterpipe tobacco

Emerging tobacco product use is increasing. We evaluated factors associated with perceived risk of and intention to use waterpipe tobacco by surveying students at a large university in the southeastern U.S. (N = 667). Proportional odds modeling assessed whether demographic characteristics and social acceptability are associated with perceived risk of waterpipe tobacco use; and if these factors and perceived risk are related to intention to use waterpipe tobacco. Participants who perceived waterpipe tobacco to be more socially acceptable had lower odds of perceiving it as risky (95% confidence interval [CI] 0.50-0.68). Compared with never users, former tobacco users and current users had lower odds of perceiving waterpipe tobacco use as risky (95% CI 0.38-0.80 and 0.28-0.63, respectively). Similarly, students with greater perceived social acceptability scores had higher odds of intending to use waterpipe tobacco (95% CI 1.41-2.63), while those who perceived greater risk had lower odds of intending to use it (95% CI 0.34-0.64). Compared with never users, former users had higher odds of intending to use waterpipe tobacco (95% CI 1.42-7.21). Among those who had ever used waterpipe tobacco, 90% reported 'to socialize' as the most frequent reason for deciding to do so. Findings underscore the need for future prevention efforts.