Viewer Reactions to EVALI Storylines on Popular Medical Dramas: A Thematic Analysis of Twitter Messages.

Previous research has found an association between awareness of e-cigarette, or vaping, product-use associated lung injury (EVALI) and lower intention to use e-cigarettes among young people. This study utilized Twitter data to evaluate if the January 2020 depiction of EVALI on New Amsterdam, Chicago Med, and Grey's Anatomy-three popular primetime medical dramas-could be a potential innovative avenue to raise awareness of EVALI. We obtained tweets containing e-cigarette-related search strings from 1/21/2020 to 02/18/2020 and filtered these with storyline-specific keywords, resulting in 1,493 tweets for qualitative coding by two trained human coders. Content codes were informed by prior research, theories of narrative influence, and e-cigarette related outcomes. Of 641 (42.9%) relevant tweets, the most frequent content codes were perceived realism (n = 292, 45.6%) and negative response (n = 264, 41.2%). A common theme among these tweets was that storylines were unrealistic because none of the characters with EVALI used THC-containing products. Approximately 12% of tweets (n = 78) mentioned e-cigarette knowledge and 28 (4.4%) mentioned behavior, including quitting e-cigarettes because of viewing the storylines. Implications for health communication research utilizing social media data and maximizing the achievement of positive health-related outcomes for storylines depicting current health topics are discussed.

"Better Than Any DARE Program": Qualitative Analysis of Adolescent Reactions to EVALI Television Storylines.

Introduction. Research suggests that awareness of e-cigarette, or vaping, product-use associated lung injury (EVALI) among adolescents is associated with increased harm perception of e-cigarettes. The depiction of EVALI on three primetime medical dramas offers an opportunity to examine the use of these storylines for tobacco prevention education. Methods. We conducted four focus groups with seventh- and eighth-grade students at an urban middle school. Participants viewed three clips of scenes followed by a facilitated discussion as to the influence of the clips on knowledge and perceptions of e-cigarettes and the use of clips for tobacco prevention education. Two research assistants double-coded notes from the focus groups using a qualitative content analysis approach. Results. Our final sample included 78 adolescents; we obtained self-reported demographic information for 75. The majority of participants were 13 to 14 years of age (82.7%) and identified as cisgender female (52.0%) and Black (52.0%). No participants had knowledge of EVALI prior to viewing the clips. Comments made both during and after watching suggest the clips may have reinforced knowledge and perceptions of harm; participants stated that the clips could be a useful intervention tool. Viewing the clips also generated unprompted discussion about flavored products, tobacco advertising, other television programs, and marijuana. Conclusions. Clips featuring the depiction of EVALI on medical dramas may be an effective tool for raising awareness of e-cigarette use-related harms. These results offer a promising first step for future collaborative research between public health, adolescents, and schools to develop tobacco prevention education utilizing these clips.

COVID-19 Vaccine Hesitancy, Acceptance, and Promotion Among Healthcare Workers: A Mixed-Methods Analysis.

Even with vaccine mandates, COVID-19 vaccine hesitancy remains a concern among healthcare workers, in part due to their role in promoting vaccination among patients and communities. To examine COVID-19 vaccine hesitancy, acceptance, and promotion among healthcare workers, we conducted a mixed-methods analysis of (1) survey responses about COVID-19 vaccination and (2) Twitter messages (i.e., tweets) relevant to COVID-19 vaccination and healthcare. A total of 540 hospital employees completed the survey. Those that completed less than 80% of the survey or did not endorse employment at the hospital were excluded, resulting in a total of 511 valid responses; 93.2% reported receiving at least one dose of a COVID-19 vaccine. Approximately 1/3 of vaccinated individuals indicated they posted about receiving the vaccine on social media. Simultaneously, we analyzed a sample of 3845 tweets; 2299 (60%) were relevant to COVID-19 vaccination and 1863 (81%) were coded as authored by an individual. Of tweets authored by an individual, 6% (n = 106) were authored by a healthcare provider/health sciences student. Among relevant tweets, the most frequent code across all sentiment categories was related to the pharmaceutical industry (n = 529 tweets, 28%; n = 33, 31% of tweets authored by healthcare workers). Triangulation of results found themes including vaccine access, trust, and vaccine safety or negative health impacts. Results suggest that promoting the sharing of COVID-19 vaccine personal narratives on social media, combined with interventions targeting specific reasons for COVID-19 vaccine hesitancy and emphasizing freedom from fear once vaccinated could be effective at reducing COVID-19 vaccine hesitancy among this population.

"It Encourages Family Discussion": A Mixed-Methods Examination of the This Is Us Alzheimer's Disease & Caregiving Storyline.

The average United States (U.S.) adult spends approximately one hour interacting directly with a healthcare professional but 2,000 hours watching primetime television annually. Thus, television storylines may be a powerful vehicle for promoting awareness about Alzheimer's disease and caregiving, which affect an estimated 9 million U.S. adults. We used a mixed-methods approach consisting of an online survey of U.S. adult This Is Us viewers (n = 720) and 4 focus groups (n = 12) with a subset of survey respondents to systematically assess viewer perceptions of an Alzheimer's disease and caregiving storyline from the This Is Us television show and the storyline's influence on viewer behavioral intent toward planning for aging. Triangulation of survey and focus group results suggests the storyline may motivate viewers to discuss plans for aging with their family because of a reduction in stigma and seeing on-screen family tensions related to senior care. Results suggest investments in collaborative partnerships between public health and the entertainment industry may be a valuable way to positively impact those affected by Alzheimer's disease and caregiving. Clips from this storyline could also be used as part of health communication campaigns to encourage advanced care planning discussions.

Puff Bars, Tobacco Policy Evasion, and Nicotine Dependence: Content Analysis of Tweets.

BACKGROUND: Puff Bars are e-cigarettes that continued marketing flavored products by exploiting the US Food and Drug Administration exemption for disposable devices. OBJECTIVE: This study aimed to examine discussions related to Puff Bar on Twitter to identify tobacco regulation and policy themes as well as unanticipated outcomes of regulatory loopholes. METHODS: Of 8519 original tweets related to Puff Bar collected from July 13, 2020, to August 13, 2020, a random 20% subsample (n=2661) was selected for qualitative coding of topics related to nicotine dependence and tobacco policy. RESULTS: Of the human-coded tweets, 2123 (80.2%) were coded as relevant to Puff Bar as the main topic. Of those tweets, 698 (32.9%) discussed tobacco policy, including flavors (n=320, 45.9%), regulations (n=124, 17.8%), purchases (n=117, 16.8%), and other products (n=110, 15.8%). Approximately 22% (n=480) of the tweets referenced dependence, including lack of access (n=273, 56.9%), appetite suppression (n=59, 12.3%), frequent use (n=47, 9.8%), and self-reported dependence (n=110, 22.9%). CONCLUSIONS: This study adds to the growing evidence base that the US Food and Drug Administration ban of e-cigarette flavors did not reduce interest, but rather shifted the discussion to brands utilizing a loophole that allowed flavored products to continue to be sold in disposable devices. Until comprehensive tobacco policy legislation is developed, new products or loopholes will continue to supply nicotine demand.

Using Fictional Medical Television Programs to Teach Interprofessional Communication to Graduating Fourth-Year Medical Students.

OBJECTIVES: Effective interprofessional (IP) communication is crucial to high-quality patient care, but significant obstacles remain regarding implementing IP communication curricula for undergraduate medical students. As such, as part of a bootcamp required for University of Pittsburgh graduating medical students in 2021, we developed and evaluated a workshop using clips from medical television shows (eg, ER) to teach IP communication skills. METHODS: The workshop was hosted on Zoom videoconferencing software and evaluated using pre- and postcurricular surveys that included adapted Communication Skills Attitude Scale (CSAS) and Student Perceptions of Interprofessional Clinical Education-Revised (SPICE-R) instruments. The postcurricular survey also included two open-ended items. We used Wilcoxon signed-rank tests to compare pre- and postcurricular CSAS and SPICE-R scores and used thematic analysis for qualitative data. RESULTS: Approximately 94% (n = 105) of assigned students attended the workshop. Comparison of pre- and postcurricular means for all CSAS and SPICE-R items indicated improvements in attitudes toward communication training and IP communication, with statistically significant (P < 0.05) changes for 4 of 10 (40%) CSAS items and 8 of 10 (80%) SPICE-R items. Thematic analysis of open-ended items suggests that the workshop is acceptable to students and may be efficacious at improving both their IP communication skills and skills related to addressing equity and bias. CONCLUSIONS: Results suggest that using clips from fictional medical television programs may be a valuable approach to teaching graduating medical students IP communication skills. Future research could examine whether improved attitudes are sustained over time and the influence of the workshop on clinical IP communication behavior.

E-Cigarette-Related Nicotine Misinformation on Social Media.

Background. Twitter provides an opportunity to examine misperceptions about nicotine and addiction as they pertain to electronic nicotine delivery systems (ENDS). The purpose of this study was to systematically examine a sample of ENDS-related tweets that presented information about nicotine or addiction for the presence of potential misinformation.Methods. A total of 10.1 million ENDS-related tweets were obtained from April 2018 through March 2019 and were filtered for unique tweets containing keywords for nicotine and addiction. A subsample (n = 3,116) were human coded for type of account (individual, group, commercial, or news) and presence of potential misinformation.Results. Of tweets that presented ENDS-related nicotine or addiction information (n = 904), 41.7% (n = 377) contained potential misinformation coded as anti-vaping exaggeration, pro-vaping exaggeration, nicotine is not addictive or is never harmful, or unproven health benefits.Conclusions. Anti-vaping exaggeration tweets distorted or embellished claims about ENDS nicotine and addiction; pro-vaping exaggeration tweets misinterpreted results from scientific studies. Misinformation that nicotine is not addictive or is never harmful or has unproven health benefits appeared less but are potentially problematic. ENDS-related messaging should be designed to be easily understood by the public and monitored to detect the spread of misinterpretation or misinformation on social media.

Patient-centered Communication Behaviors on Primetime Television.

Previous research suggests that television programming may influence viewers' health-related knowledge, perceptions, and behaviors but has yet to examine patient-provider interactions on the most popular primetime television programs. We aimed to characterize the frequency and nature of patient-centered communication (PCC) behaviors on these programs, as cultivation and social cognitive theories suggest that these depictions may influence viewers' expectations of real-life health-care experiences. We examined 203 patient-provider interactions across 84 episodes of 22 primetime television programs-both medical and non-medical-that aired during the spring of 2016 and spring of 2017. Each interaction was analyzed for the presence of 21 optimal PCC behaviors. This study found that the most frequently observed PCC behaviors focused on the provider making good eye contact and displaying good manners. However, PCC behaviors related to managing patient uncertainty and self-management were rare. Overall, providers in medical programs were significantly more likely to exhibit certain PCC behaviors, such as asking a patient questions, having good manners, and self-disclosing personal information, compared to providers in non-medical programs. Implications of these findings include the potential for such depictions to influence patient expectations of real-life experiences and health outcomes. Future research is needed to examine these potential influences.

Use of fictional medical television in health sciences education: a systematic review.

While medical television programs are popular among health profession trainees, it is not clear to what extent these programs affect their knowledge, perceptions, and/or behaviors. Therefore, we conducted a systematic review of research evaluating associations between program exposure and outcomes. We conducted systematic literature searches in Pubmed, CINAHL, and PsycINFO. Selected studies were required to be scholarly research, involve exposure to fictionalized medical television programming by health professional students, and assess associations between exposure and outcomes. Studies were classified according to quality and factors related to population, exposure, and outcomes. Of 3541 studies identified, 13 met selection criteria. Six studies involved undergraduate medical students, one involved nursing students, two involved both medical and nursing students, two involved medical residents, one involved medical students, residents and attending physicians, and one involved graduate epidemiology students. Mean study quality according to the MERSQI was 8.27. The most commonly assessed television programs were ER and Grey's Anatomy (six each). Five studies assessed regular viewing habits, and found that fictional medical programs are popular among students and that students recall health topics from episodes. The eight studies that assessed the association with outcomes when using clips as educational tools reported high satisfaction and increased knowledge of the presented health topics. While relatively few published studies have explored influences of fictional medical television on health professional students, those conducted suggest that students often view these television programs independently and that integration of this programming into medical education is feasible and acceptable.

Use of Twitter to Assess Viewer Reactions to the Medical Drama, Code Black.

Fictional medical television programs are popular with viewers and have been shown to influence health-related outcomes. We sought to systematically analyze real-time viewer discourse on Twitter related to the new medical drama, Code Black. We retrieved all Twitter posts (tweets) and metadata around the time of the airing of Code Black for four consecutive weeks. We developed a codebook using both content assessment of Twitter messages (tweets) and theory-based variables used in entertainment education analyses. We coded all tweets that occurred during the Eastern Standard Time (EST) airing of the program. Tweets that fell into at least one coding category were further analyzed by two independent researchers. We collected a total of 19,369 tweets, with 54% of total tweets originating during the EST airing of the program. There were 1,888 tweets that fit into one or more of six broad coding categories. Qualitative analysis revealed several key themes including real-life motivation to pursue health sciences careers based on the program, engagement regarding medical accuracy, and respect for the nursing profession. Examination of tweets related to Code Black provides insight into viewer discourse and suggests that Twitter may provide a vehicle for leveraging program engagement into real-life discussion and inquiry.

Exposure to fictional medical television and health: a systematic review.

Fictional medical television programs have long been a staple of television programming, and they remain popular today. We aimed to examine published literature assessing the influence of medical television programs on health outcomes. We conducted systematic literature searches in PubMed, PsychINFO and CINAHL. Selected studies had to be scholarly research, to involve exposure to fictionalized medical television programming, and to assess associations between exposures and outcomes. Of 3541 unique studies identified, nineteen met selection criteria. The most commonly studied programs were ER (73%), Grey's Anatomy (58%) and House M.D. (37%). Outcomes included knowledge, perceptions and behaviors related to topics as diverse as organ donation, cancer screening, sexually transmitted infections, and heart disease. Viewing fictional medical television programs had a negative influence on viewers' health-related knowledge, perceptions and/or behavior in 11% of studies, a positive influence in 32% of studies, and mixed influence in 58%. While most studies (58%) were characterized as having fair quality in terms of rigor of study design, 21% were classified as good and 21% were classified as poor. As such, medical television can affect health education and outcomes. Future work should utilize randomization, more longitudinal assessments, and more direct assessments of health education and behavioral outcomes.

ASSOCIATION BETWEEN SOCIAL MEDIA USE AND DEPRESSION AMONG U.S. YOUNG ADULTS.

BACKGROUND: Social media (SM) use is increasing among U.S. young adults, and its association with mental well-being remains unclear. This study assessed the association between SM use and depression in a nationally representative sample of young adults. METHODS: We surveyed 1,787 adults ages 19 to 32 about SM use and depression. Participants were recruited via random digit dialing and address-based sampling. SM use was assessed by self-reported total time per day spent on SM, visits per week, and a global frequency score based on the Pew Internet Research Questionnaire. Depression was assessed using the Patient-Reported Outcomes Measurement Information System (PROMIS) Depression Scale Short Form. Chi-squared tests and ordered logistic regressions were performed with sample weights. RESULTS: The weighted sample was 50.3% female and 57.5% White. Compared to those in the lowest quartile of total time per day spent on SM, participants in the highest quartile had significantly increased odds of depression (AOR = 1.66, 95% CI = 1.14-2.42) after controlling for all covariates. Compared with those in the lowest quartile, individuals in the highest quartile of SM site visits per week and those with a higher global frequency score had significantly increased odds of depression (AOR = 2.74, 95% CI = 1.86-4.04; AOR = 3.05, 95% CI = 2.03-4.59, respectively). All associations between independent variables and depression had strong, linear, dose-response trends. Results were robust to all sensitivity analyses. CONCLUSIONS: SM use was significantly associated with increased depression. Given the proliferation of SM, identifying the mechanisms and direction of this association is critical for informing interventions that address SM use and depression.

Social Media and Vaccine Hesitancy: Help Us Move the Needle.

With more than 75% of parents and pediatric caregivers getting their health-related information online, reaching families on social media is a powerful way to leverage the trust built in the examination room to address vaccine hesitancy. This article first reviews the ways the antivaccine movement has leveraged social media to expand its considerable influence, and why social media companies have failed to reduce antivaccine misinformation and disinformation. Next, it reviews the barriers to adoption of social media-based communication by pediatric health-care providers and concludes with action-oriented items to increase the adoption of this powerful tool.

Utilizing Television Clips for Graduate Medical Education Anti-racist Curricula: An Acceptability Study.

Introduction Racism is a pervasive social problem that influences medicine, highlighting the need for interventions. One promising educational technique, referred to as edutainment, utilizes clips from television shows as an instructive strategy. The objective of this study was to examine the acceptability of edutainment around anti-racist curricula for residents. Methods We conducted a survey of underrepresented in medicine (URM) medical faculty to inform content for subsequent focus groups with medicine, psychiatry, and pediatrics residents. For the survey, URM faculty were randomly assigned to view four of eight clips and responded to close- and open-ended items. Focus group participants viewed selected clips and provided feedback. All study procedures occurred in 2020-2021. We calculated descriptive statistics for close-ended survey items and employed thematic analysis for open-ended items and focus group transcripts. Results Twelve URM faculty completed the survey. Feedback was uniformly positive so we included all eight clips in the resident focus groups. For each of the three participating specialties, we conducted two focus groups (2-11 participants each, total n=25) with participants viewing four of the eight clips. Analysis of focus group transcripts found that participants were receptive to the edutainment approach. Feedback as to the realism and acceptability of certain clips differed by specialty. Triangulation of survey and focus group results found differences in the acceptability of specific clips between residents and faculty. Conclusion Edutainment with medical television shows may be a promising avenue for anti-racist curricular content for residents. The educational methods described here are being incorporated into a multi-pronged, hospital system wide graduate medical education anti-racist curriculum.

Characterizing the Influence of Television Health Entertainment Narratives in Lay Populations: A Scoping Review.

OBJECTIVE: To conduct a scoping review of published literature examining the influence of health storylines from fictional television programs on viewers. DATA SOURCE: We performed literature searches in Medline, PsycINFO, and Mass Media Complete in October 2021, and examined bibliographies of included articles and conducted forward searching using Web of Science with included articles. STUDY INCLUSION AND EXCLUSION CRITERIA: Selected studies were required to be original research published in English, involve exposure to fictional television programming by individuals not in the medical field, and assess associations between exposure and health-related outcomes. DATA EXTRACTION: Article screening and data abstraction were performed by two independent researchers using DistillerSR (Cohen's κ range: .73-1.00). DATA SYNTHESIS: We analyzed and qualitatively described the data using methods of scoping reviews described by PRISMA-ScR. RESULTS: Of 5,537 unique records identified, 165 met inclusion criteria. The most frequently studied program was ER (n = 22, 13.3%). Most studies had adult participants (n = 116, 70.3%) and used quantitative methods (n = 136, 82.4%). The most frequently examined health topics were sexual behavior (n = 28, 17.0%) and mental health (n = 28, 17.0%). Exposure had a positive influence on viewers' health-related outcomes in 28.5% (n = 47) of studies. CONCLUSION: Health storylines on fictional television influence viewers. Future research could address gaps identified in this review to further elucidate the influence of this programming on health promotion and disease prevention.

Feasibility and Acceptability of Using Television Clips to Teach Communication Skills.

INTRODUCTION: The purpose of this study was to conduct an innovative seminar that was developed by using clips from the television program ER to teach/reinforce key concepts of effective communication for didactic phase physician assistant (PA) students. METHODS: Interactive, 2-hour , small group seminars were conducted as part of the PA curriculum. Demographic data, as well as information about prior exposure to medical-related television shows and interest in specific medical disciplines, were collected at baseline. The evaluation of this unconventional teaching strategy was completed via a post-activity self-administered, electronic survey. Descriptive statistics were calculated for closed-ended questions, and a thematic analysis approach was used to examine open-ended questions. RESULTS: Approximately two-thirds (n = 49) of the students who attended the seminars completed both the baseline and post-activity surveys. The seminars were well-received, with 94% of respondents indicating they would like to participate in similar trainings in the future. The primary suggestion was to use clips from multiple television programs. DISCUSSION: The results suggest that this instructional format was highly acceptable to modern PA students, who yearn for an amalgamation of education and entertainment. Future work could examine the influence of the seminar on students' communication in clinical environments.

#DoctorsSpeakUp: Lessons learned from a pro-vaccine Twitter event.

BACKGROUND: In response to growing anti-vaccine activism on social media, the #DoctorsSpeakUp event was designed to promote pro-vaccine advocacy. This study aimed to analyze Twitter content related to the event to determine (1) characteristics of the Twitter users who authored these tweets, (2) the proportion of tweets expressing pro-vaccine compared to anti-vaccine sentiment, and (3) the content of these tweets. METHODS: Data were collected using Twitter's Filtered Streams Interface, and included all publicly available tweets with the "#DoctorsSpeakUp" hashtag on March 5, 2020, the day of the event. Two independent coders assessed a 5% subsample of original tweets (n = 966) using a thematic content analysis approach. Cohen's κ ranged 0.71-1.00 for all categories. Chi-square and Fisher's exact tests were used to examine associations between tweet sentiment, type of account, and tweet content (personal narrative and/or statement about research or science). Accounts were analyzed for likelihood of being a bot (i.e. automated account) using Botometer. RESULTS: Of 847 (87.7%) relevant tweets, 244 (28.8%) were authored by a Twitter user that identified as a parent and 68 (8.0%) by a user that identified as a health professional. With regard to sentiment, 167 (19.7%) were coded as pro-vaccine and 668 (78.9%) were coded as anti-vaccine. Tweet sentiment was significantly associated with type of account (p < 0.001) and tweet content (p = 0.001). Of the 575 unique users in our dataset, 31 (5.4%) were classified as bots using Botometer. CONCLUSIONS: Our results suggest a highly coordinated response of devoted anti-vaccine antagonists in response to the #DoctorsSpeakUp event. These findings can be used to help vaccine advocates leverage social media more effectively to promote vaccines. Specifically, it would be valuable to ensure that pro-vaccine messages consider hashtag use and pre-develop messages that can be launched and promoted by pro-vaccine advocates.

Invariant natural killer T cells suppress the neutrophil inflammatory response in a mouse model of cholestatic liver damage.

BACKGROUND & AIMS: NK1.1(+) TCRalphabeta(int) CD1-restricted T (NKT) cells are a unique subset of T lymphocytes that are believed to have an immunoregulatory role in a wide range of diseases. Most mouse NKT cells express a T-cell receptor that contains an invariant Valpha14Jalpha18 chain and recognizes antigenic glycolipids presented in association with major histocompatibility complex class Ib (CD1d) molecules. These invariant NKT (iNKT) cells have been implicated in cholestatic liver injury. METHODS: We examined the role of iNKT cells in liver injury associated with biliary obstruction in mice with ligations of the common bile duct. RESULTS: The number of activated iNKT cells increased markedly in the livers of mice following bile duct ligation. Plasma alanine aminotransferase levels, an indicator of liver injury, were significantly higher in iNKT cell-deficient (Jalpha18(-/-)) mice compared with wild-type mice following bile duct ligation. Photo image analysis of histologic sections confirmed that more damage was present in the livers of Jalpha18(-/-) mice; liver damage correlated with increases in keratinocyte-derived chemokine (KC) and macrophage inflammatory protein-2 (MIP-2) production as well as neutrophil sequestration. Liver injury was significantly reduced in Jalpha18(-/-) mice treated with anti-KC and anti-MIP-2 or rendered neutrophil deficient before bile duct ligation. Similarly, Jalpha18(-/-) mice that were injected with iNKT cells before bile duct ligation exhibited significant decreases in neutrophil accumulation and liver damage. CONCLUSIONS: These data document the role of iNKT cells in suppressing the neutrophil proinflammatory response and neutrophil-dependent cholestatic liver damage.

Integrating Social Dynamics Into Modeling Cigarette and E-Cigarette Use.

Background. The use of electronic cigarettes (e-cigarette) offers potential to facilitate cigarette smoking cessation, yet potentially increases risk of cigarette smoking initiation. This relationship has been primarily modeled in mathematical ways that often do not represent real-world complexities, which could inform decisions regarding local prevention programs or policies. Aims. To develop a model of cigarette and e-cigarette use that combines current research on tobacco use and incorporates real-world geographic and demographic data. Method. We used a platform for developing agent-based models with demographic information representative of the population in Pennsylvania. We developed three models of cigarette and e-cigarette use. The primary outcome for each was the total number of users for cigarette, e-cigarette, and total nicotine. The first model applied current cigarette and e-cigarette data, the second tested the effect of implementing a program of e-cigarette education and policies, and the third considered a social contagion factor, where local schools functioned as a transmission vector. Results. The baseline and social contagion models found an overall decline in cigarette use but an increase in e-cigarette and total nicotine use. The education/policies model had declines in all categories. Sensitivity analysis suggested the importance of nuanced e-cigarette/cigarette interactions when modeling tobacco use. Discussion. Public health campaigns that focus on reducing youth e-cigarette usage can have a large effect. Social contagion should be strongly considered when studying e-cigarette spread. Conclusion. Targeted public health campaigns focused on reducing school prevalence of e-cigarette use may be particularly valuable.

It's not all about autism: The emerging landscape of anti-vaccination sentiment on Facebook.

BACKGROUND: Due in part to declining vaccination rates, in 2018 over 20 states reported at least one case of measles, and over 40,000 cases were confirmed in Europe. Anti-vaccine posts on social media may be facilitating anti-vaccination behaviour. This study aimed to systematically characterize (1) individuals known to publicly post anti-vaccination content on Facebook, (2) the information they convey, and (3) the spread of this content. METHODS: Our data set consisted of 197 individuals who posted anti-vaccination comments in response to a message promoting vaccination. We systematically analysed publicly-available content using quantitative coding, descriptive analysis, social network analysis, and an in-depth qualitative assessment. The final codebook consisted of 26 codes; Cohen's κ ranged 0.71-1.0 after double-coding. RESULTS: The majority (89%) of individuals identified as female. Among 136 individuals who divulged their location, 36 states and 8 other countries were represented. In a 2-mode network of individuals and topics, modularity analysis revealed 4 distinct sub-groups labelled as "trust," "alternatives," "safety," and "conspiracy." For example, a comment representative of "conspiracy" is that poliovirus does not exist and that pesticides caused clinical symptoms of polio. An example from the "alternatives" sub-group is that eating yogurt cures human papillomavirus. Deeper qualitative analysis of all 197 individuals' profiles found that these individuals also tended to post material against other health-related practices such as water fluoridation and circumcision. CONCLUSIONS: Social media outlets may facilitate anti-vaccination connections and organization by facilitating the diffusion of centuries old arguments and techniques. Arguments against vaccination are diverse but remain consistent within sub-groups of individuals. It would be valuable for health professionals to leverage social networks to deliver more effective, targeted messages to different constituencies.