Contributions to Research and Practice Made by the National Cancer Institute's Health Communication and Informatics Research Branch.

The Health Communication and Informatics Research Branch at the U.S. National Cancer Institute was founded in 1999 in response to increasing evidence demonstrating a link between effective health communication and improved cancer-related outcomes and in recognition of the rapid and dramatic technological changes that were transforming health communication at the turn of the 21st century. For the past 25 years, the Health Communication and Informatics Research Branch has been conducting and supporting research at the forefront of emerging cancer communication trends and technologies, making numerous contributions to health communication science, public health, and cancer control practice. In this essay, we provide a brief history of the branch and the context that led to its establishment, discuss contributions made by the branch to health communication research and practice through key projects and initiatives, and conclude by highlighting health communication and informatics research priorities that offer opportunities for significant impact going forward in light of the challenges posed by the current communication environment.

Rationale, Procedures, and Response Rates for a Pilot Study to Sample Cancer Survivors for NCI's Health Information National Trends Survey: HINTS-SEER 2021.

The National Cancer Institute's (NCI) Health Information National Trends Survey (HINTS) is a nationally representative survey of U.S. adults in which 12-17% of respondents report a cancer history. To increase representation from adult cancer survivors, in 2021, NCI sampled survivors from three Surveillance, Epidemiology, and End Results (SEER) program cancer registries: Iowa, New Mexico, and the Greater Bay Area. Sampling frames were stratified by time since diagnosis and race/ethnicity, with nonmalignant tumors and non-melanoma skin cancers excluded. Participants completed a self-administered postal questionnaire. The overall response rate for HINTS-SEER (N = 1,234) was 12.6%; a non-response bias analysis indicated few demographic differences between respondents and the pool of sampled patients in each registry. Most of the sample was 10+ years since diagnosis (n = 722; 60.2%); 392 respondents were 5 to < 10 years since diagnosis (29.6%); and 120 were < 5 years since diagnosis (10.2%). Common cancers included male reproductive (n = 304; 24.6%), female breast (n = 284; 23.0%), melanoma (n = 119; 9.6%), and gastrointestinal (n = 106; 8.6%). Tumors were mostly localized (67.8%; n = 833), with 22.4% (n = 282) regional, 6.2% (n = 72) distant, and 3.7% (n = 47) unknown. HINTS-SEER data are available by request and may be used for secondary analyses to examine a range of social, behavioral, and healthcare outcomes among cancer survivors.

U.S. Adults' Public Opinion Toward R-Rating Labels for Movies With Cigarette Smoking.

INTRODUCTION: The purpose of this study was to describe the proportion of U.S. adults who support, oppose, or are neutral toward a policy designating R-ratings for movies depicting cigarette smoking and to identify predictors of policy opposition or neutrality among a nationally representative sample. METHODS: Data from the 2020 Health Information National Trends Survey 5 Cycle 4 (fielded in 2020; N=3,865) were used to estimate the prevalence of support, neutrality, and opposition to a policy designating R-ratings for movies containing depictions of cigarette smoking. Weighted, multivariable logistic regression was used to assess the predictors of policy opposition or neutrality. RESULTS: The analysis showed that 47.0% of U.S. adults were supportive, 20.3% opposed, and 30.3% were neutral toward designating R-ratings for movies depicting cigarette smoking. Older adults were significantly less likely to be neutral to or opposed to an R-rating policy than adults aged 18-34 years: age 50-64 years (OR=0.56; 95% CI=0.35, 0.87), age 65-74 years (OR=0.39; 95% CI=0.24, 0.64), and age ≥75 years (OR=0.27; 95% CI=0.16, 0.45). In addition, non-Hispanic Asians were significantly less likely than non-Hispanic Whites to be neutral to or opposed the policy (OR=0.46; 95% CI=0.25, 0.84). CONCLUSIONS: Study findings show that a near majority of U.S. adults support a policy that would designate R-ratings for movies depicting cigarette smoking and that there is greater neutrality than opposition toward the policy. Assessing public opinion toward a policy designating R-ratings for movies depicting cigarette smoking may inform efforts to educate the public about the value of such policies for preventing youth tobacco initiation.

Patient-Centered Communication (PCC) scale: Psychometric analysis and validation of a health survey measure.

INTRODUCTION: Patient-centered communication (PCC) is one important component of patient-centered care and seen as a goal for most clinical encounters. Previous research has shown that higher PCC is related to an increase in healthy behaviors and less morbidity, among other outcomes. Given its importance, the National Cancer Institute (NCI) commissioned a monograph in 2007 to synthesize the existing literature on PCC and determine measurement objectives and strategies for measuring this construct, with a particular focus on cancer survivors. Based on this effort, a seven-item PCC scale was included on the Health Information National Trends Survey (HINTS), a probability-based survey of the US adult population. This study used HINTS data collected in 2018 to evaluate the psychometric properties of the PCC scale for the general US adult population including measures of reliability and validity. RESULTS: Through an exploratory factor analysis, the seven-item PCC scale was shown to be unidimensional with good internal consistency (Cronbach's alpha = .92). A confirmatory factor analysis verified the factor structure. Other construct validity metrics included known groups and discriminant validity. Known group comparisons were conducted for several sociodemographic factors and health self-efficacy confirming a priori assumptions. Discriminant validity tests with measures of social support and anxiety/depression showed relatively weak associations. CONCLUSIONS: The psychometric properties of this scale demonstrate its scientific utility for both surveillance research and other smaller-scale studies. Given its association with many health outcomes, it can also be used to better understand the dynamics in a clinical encounter.

Public Support for Cigarette Pack Pictorial Health Warnings Among US Adults: A Cross-sectional Analysis of the 2020 Health Information National Trends Survey.

INTRODUCTION: The US Food and Drug Administration issued a final rule requiring new warnings for cigarette packages and advertisements. This study examines population-level characteristics of support for-versus neutrality or opposition toward-cigarette pack warnings that use text and images to portray the negative health effects of smoking. METHODS: We used nationally representative cross-sectional data of US adults age 18 and older from the 2020 Health Information National Trends Survey (n = 3865). Frequencies and weighted proportions were calculated for neutrality toward, opposition to, and support for pictorial warnings across sociodemographics and other predictors. Weighted, multivariable logistic regression examined predictors of being neutral or opposed versus supportive of pictorial warnings. RESULTS: In 2020, an estimated 69.9% of US adults supported pictorial warnings, 9.1% opposed, and 20.9% neither supported nor opposed them. In fully adjusted models, current smokers had almost twice the odds of being neutral or opposed to pictorial warnings as never smokers (odds ratio [OR] = 1.99, confidence interval [CI] 1.12, 3.52). Adults 75 years and older (vs. 18-34) (OR = 0.55, CI 0.33, 0.94) and those with children under 18 in their household (vs. no children) (OR = 0.67, CI 0.46, 0.98) were less likely to be neutral or opposed. CONCLUSIONS: In advance of the Food and Drug Administration's implementation of pictorial warnings on cigarette packages, nearly 70% of American adults support this policy. Disseminating information about the effectiveness of pictorial warnings may further strengthen support among current smokers who are less supportive than never smokers. Furthermore, framing messages around the benefits of pictorial warnings for protecting youth may increase public support. IMPLICATIONS: While public support for pictorial warnings on cigarette packages is high in the United States, it may increase further after policy implementation and be strengthened by utilizing information campaigns that convey the evidence that pictorial warnings are an effective public health strategy.

Awareness of Alcohol as a Carcinogen and Support for Alcohol Control Policies.

INTRODUCTION: Alcohol use increases cancer risk, yet awareness of this association is low. Alcohol control policies have the potential to reduce alcohol-caused cancer morbidity and mortality. Research outside the U.S. has found awareness of the alcohol-cancer link to be associated with support for alcohol control policies. The purpose of this study is to estimate the prevalence of support for 3 communication-focused alcohol policies and examine how awareness of the alcohol-cancer link and drinking status are associated with policy support among U.S. residents. METHODS: Investigators analyzed data from the 2020 Health Information National Trends Survey 5 Cycle 4. Analyses were performed in 2021. The proportion of Americans who supported banning outdoor alcohol advertising and adding warning labels and drinking guidelines to alcohol containers was estimated. Weighted multivariable logistic regression was used to examine how awareness of the alcohol-cancer link and drinking status were associated with policy support. RESULTS: Most Americans supported adding warning labels (65.1%) and drinking guidelines (63.9%), whereas only 34.4% supported banning outdoor alcohol advertising. Americans reporting that alcohol had no effect/decreased cancer risk had lower odds of support for advertising ban (OR=0.56), warning labels (OR=0.43), and guidelines (OR=0.46) than Americans aware of the alcohol-cancer link. Moreover, heavier drinkers had lower odds of support for advertising ban (OR=0.41), warning labels (OR=0.59), and guidelines (OR=0.60) than nondrinkers. CONCLUSIONS: Awareness of the alcohol-cancer link was associated with policy support. Increasing public awareness of the alcohol-cancer link may increase support for alcohol control policies.

U.S. public opinion toward policy restrictions to limit tobacco product placement and advertising at point-of-sale and on social media.

The Family Smoking Prevention and Tobacco Control Act granted the U.S. Food and Drug Administration authority to regulate tobacco advertising and promotion, including at the retail level, and preserved state, tribal, and local tobacco advertising and promotion authorities. Public health experts have proposed prohibiting point-of-sale tobacco advertisements and product displays, among other tobacco advertising restrictions. We examined the prevalence and correlates of public support, opposition, and neutrality toward proposed tobacco product placement and advertising restrictions at point-of-sale and on social media utilizing the National Cancer Institute's 2020 Health Information National Trends Survey (HINTS) (N = 3865), a cross-sectional, probability-based postal survey of U.S. addresses conducted from Feb 24, 2020 to June 15, 2020 (Bethesda, MD). Frequencies and unadjusted, weighted proportions were calculated for support, neutrality, and opposition toward the three policies under study, and weighted, adjusted multivariable logistic regression was employed to examine predictors of neutrality and opposition. Tests of significance were conducted at the p < 0.05 level. Sixty-two percent of U.S. adults supported a policy prohibiting tobacco product advertising on social media; 55% supported a policy restricting the location of tobacco product advertising at point-of-sale; and nearly 50% supported a policy to keep tobacco products out of view at the checkout counter. Neutrality and opposition varied by sociodemographic characteristics including age, sex, education, rurality, and presence of children in the household. Understanding public opinion toward tobacco product placement and advertising restrictions may inform policy planning and implementation.

Willingness to Share Data From Wearable Health and Activity Trackers: Analysis of the 2019 Health Information National Trends Survey Data.

BACKGROUND: Sharing data from wearable health and activity trackers (wearables) with others may improve the health and behavioral outcomes of wearable users by generating social support and improving their ability to manage their health. Investigating individual factors that influence US adults' willingness to share wearable data with different types of individuals may provide insights about the population subgroups that are most or least likely to benefit from wearable interventions. Specifically, it is necessary to identify digital health behaviors potentially associated with willingness to share wearable data given that the use of and engagement with various technologies may broadly influence web-based health information-sharing behaviors. OBJECTIVE: This study aims to identify sociodemographic, health, and digital health behavior correlates of US adults' willingness to share wearable data with health care providers and family or friends. METHODS: Data for the analytic sample (N=1300) were obtained from the 2019 Health Information National Trends Survey of the National Cancer Institute. Digital health behavior measures included frequency of wearable device use, use of smartphones or tablets to help communicate with providers, use of social networking sites to share health information, and participation in a web-based health community. Multivariable logistic regression analysis of weighted data examined the associations between digital health behaviors and willingness to share wearable device data, controlling for sociodemographics and health-related characteristics. RESULTS: Most US adults reported willingness to share wearable data with providers (81.86%) and with family or friends (69.51%). Those who reported higher health self-efficacy (odds ratio [OR] 1.97, 95% CI 1.11-3.51), higher level of trust in providers as a source of health information (OR 1.98, 95% CI 1.12-3.49), and higher level of physical activity (OR 2.00, 95% CI 1.21-3.31) had greater odds of willingness to share data with providers. In addition, those with a higher frequency of wearable use (OR 2.15, 95% CI 1.35-3.43) and those who reported use of smartphones or tablets to help communicate with providers (OR 1.99, 95% CI 1.09-3.63) had greater odds of willingness to share data with providers. Only higher level of physical activity was associated with greater odds of willingness to share wearable data with family or friends (OR 1.70, 95% CI 1.02-2.84). Sociodemographic factors were not significantly associated with willingness to share wearable data. CONCLUSIONS: The findings of this study suggest that, among US adult wearable users, behavior-related factors, rather than sociodemographic characteristics, are key drivers of willingness to share health information obtained from wearables with others. Moreover, behavioral correlates of willingness to share wearable data are unique to the type of recipient (ie, providers vs family or friends). Future studies could use these findings to inform the development of interventions that aim to improve the use of patient-generated data from wearable devices in health care settings.

Prevalence and correlates of US adult public opinion on restricting junk food advertising to children on social media: 2020 Health Information National Trends Survey.

OBJECTIVE: To describe US adults' levels of support, neutrality and opposition to restricting junk food advertising to children on social media and explore associations with socio-demographic and health-related characteristics. DESIGN: In 2020-2021, we used cross-sectional data from the National Cancer Institute's 2020 Health Information National Trends Survey to estimate the prevalence of opinions towards advertising restrictions and correlates of neutrality and opposition using weighted multivariable logistic regression. SETTING: United States. PARTICIPANTS: Adults aged 18+ years. RESULTS: Among the analytic sample (n 2852), 54 % of adults were neutral or opposed to junk food advertising restrictions on social media. The odds of being neutral or opposed were higher among Non-Hispanic Black adults (v. non-Hispanic White; OR: 2·03 (95 % CI 1·26, 3·26)); those completing some college (OR: 1·68 (95 % CI 1·20, 2·34)) or high school or less (OR: 2·62 (95 % CI 1·74, 3·96)) (v. those with a college degree); those who were overweight (v. normal weight; OR: 1·42 (95 % CI: 1·05, 1·93)) and those reporting a moderate (OR: 1·45 (95 % CI 1·13, 1·88)) or conservative (OR: 1·71 (95 % CI 1·24, 2·35)) political viewpoint (v. liberal). Having strong (v. weaker) weight and diet-related cancer beliefs was associated with 53 % lower odds of being neutral or opposed to advertising restrictions (OR: 0·47 (95 % CI 0·36, 0·61)). CONCLUSIONS: The current study identified subgroups of US adults for whom targeted communication strategies may increase support for policies to improve children's food environment.

Communication research at the National Cancer Institute, 2013-2019: a grant portfolio analysis.

PURPOSE: To analyze communication-focused grants funded by the National Cancer Institute (NCI) between fiscal years 2013 and 2019 to provide insight into the characteristics of funded projects and identify promising areas for future research. METHODS: iSearch, a portfolio analysis tool, was queried to identify communication-related grants funded by NCI. Abstracts and specific aims were coded for key study characteristics. 344 unique competing grants with a substantial communication component were included in the final analysis. SAS version 9.4 was used to calculate code frequencies. RESULTS: Most communication grants focused on cancer prevention (n = 197), with fewer targeting diagnosis, treatment, survivorship, or end-of-life. Tobacco product use was the most frequently addressed topic (n = 128). Most grants targeted or measured outcomes at the individual (n = 332) or interpersonal level (n = 127). Cancer patients/survivors (n = 101) and healthcare providers (n = 63) were often the population of focus, while caregivers or those at increased risk for cancer received less attention. Studies were often based in healthcare settings (n = 125); few studies were based in schools or worksites. Many grants employed randomized controlled trials (n = 168), but more novel methods, like optimization trials, were uncommon. CONCLUSION: NCI's support of health communication research covers a diverse array of topics, populations, and methods. However, the current analysis also points to several promising opportunities for future research, including efforts focused on communication at later stages of the cancer control continuum and at multiple levels of influence, as well as studies that take advantage of a greater diversity of settings and leverage novel methodological approaches.

Patient Reports of Involvement in Health Care Decisions: Falling Short of Healthy People 2020 Objectives.

The Healthy People 2020 (HP 2020) initiative delineates objectives for improving population health in the United States. The National Cancer Institute's Health Information National Trends Survey (HINTS) has served as an important data source for tracking several HP 2020 Health Communication and Health Information Technology objectives, including patient perceptions of involvement in health-care decisions. We analyzed data from six cross-sectional administrations of HINTS (2008 to 2017; N = 25,410) to assess progress toward the HP 2020 objective of increasing the proportion of persons reporting that their health-care providers always involved them in decisions about their health care. In each survey year, just over half the population (range = 51.6 to 54.6) reported that their health-care providers always involved them in health-care decisions; the observed percentages over a 10-year period remained below the HP 2020 goal of 56.8% and did not show significant improvement. Results show a lack of progress toward this HP 2020 goal despite increased attention to patient engagement in health care over the last several decades.

Heterogeneity in Trust of Cancer Information among Hispanic Adults in the United States: An Analysis of the Health Information National Trends Survey.

BACKGROUND: Hispanics are differentially burdened by inequities in cancer outcomes. Increasing knowledge about cancer and cancer services among Hispanics may aid in reducing inequities, but little is known about what information sources are considered most effective or most trusted by this diverse population. The goal of this study was to examine heterogeneity in trust of cancer information from various media sources among U.S. Hispanic adults. METHODS: Using data from the Health Information National Trends Survey (HINTS) 4, Cycles 2 and 4 and HINTS 5, Cycle 2, we examined nine trust questions, divided into four domains of health communication sources [doctor, government health/charitable organizations, media (including Internet), and family/friends and religious organizations]. Independent variables examined were gender, Hispanic ethnic categories (Mexican American, Cuban/Puerto Rican, and other Hispanics), age, education, income, language, and nativity. We used multivariable logistic regression with survey weights to identify independent predictors of cancer information source use and trust. RESULTS: Of the 1,512 respondents, trust in sources ranged from 27% for radio to 91% for doctors. In multivariable models, Cubans/Puerto Ricans were twice as likely to trust cancer information from print media compared with Mexican Americans. Hispanics 75 years and older were nearly three times as likely to trust cancer information from religious organizations compared with those ages 18 to 34. Hispanic women were 59% more likely to trust cancer information from the Internet compared with men. CONCLUSIONS: Subgroup variability in source use and trust may be masked by broad racial and ethnic categories. IMPACT: Among Hispanics, there is significant variation by ethnicity and other sociodemographics in trust of sources of cancer information across multiple constructs, with notable implications for disseminating cancer information.

Advancing Rural Cancer Control Research: National Cancer Institute Efforts to Identify Gaps and Opportunities.

Cancer mortality rates are approximately 8% higher in rural populations and mortality rates are falling more slowly in rural communities, resulting in widening rural-urban health disparities in the United States. The NCI has a long history of supporting health disparities research, including research to understand the health needs, strengths, and opportunities in rural communities. However, the portfolio analysis described in this article underscores the need to significantly accelerate rural cancer control research in partnership with state and local communities. This commentary outlines NCI's efforts over the last four years to address gaps in rural cancer control research and improve cancer prevention, control, and care delivery in rural populations. Future directions, challenges, and opportunities are also discussed.

Skin Cancer and UV Exposure-Related Behaviors Among Appalachian and Non-Appalachian Adults.

Introduction: Appalachian communities experience elevated rates of cancer incidence and mortality relative to other regions in the U.S. Specifically, melanoma mortality rates are higher in Appalachia compared to the national average, despite comparable incidence rates. Purpose: To examine differences in self-reported history of skin cancer and prevalence of two UV exposure behaviors between Appalachian and non-Appalachian adults in a nationally representative sample. Methods: Data are from four cross-sectional cycles of the Health Information National Trends Survey (2011-2014) (N=14,451). We examined sunscreen use and tanning bed use, and self-reported history of melanoma and non-melanoma skin cancer. Descriptive and weighted multivariable analyses were conducted to examine sunscreen and tanning bed use, controlling for sociodemographic characteristics. Results: Approximately 8% of the study sample resided in Appalachia (n=1,015). Self-reported melanoma (0.6%) and non-melanoma (3.2%) skin cancer histories were low among Appalachians and did not differ statistically from non-Appalachians (p>0.05). Only 21.2% of Appalachians reported using sunscreen often or always when going outside for more than one hour on a warm, sunny day compared to 27.4% of non-Appalachians (pp=0.04), but there were no regional differences in tanning bed use (OR=1.48, p=0.23) when controlling for sociodemographics and general health status. Implications: Appalachians had comparable histories of self-reported melanoma and non-melanoma skin cancer but were less likely to report sunscreen use than non-Appalachians. Enhanced communication efforts to promote sunscreen use and other UV protection behaviors in Appalachia may be valuable.

Population prevalence and predictors of self-reported exposure to court-ordered, tobacco-related corrective statements.

OBJECTIVE: To describe the population prevalence and predictors of self-reported exposure to court-ordered tobacco-related corrective statements in 2017-2018, when they were first implemented in newspapers and on television. METHODS: Nationally representative data from the 2018 Health Information National Trends Survey were used (n=3504). Frequencies and weighted proportions were calculated for seeing any corrective statement and for each of the five court-ordered corrective statements. Weighted, multivariable logistic regression was used to examine sociodemographic and smoking status predictors of reported exposure to any corrective statement. RESULTS: In 2018, an estimated 40.6% of US adults had seen messages in newspapers or on television in the past 6 months stating that a federal court has ordered tobacco companies to make statements about the dangers of smoking cigarettes. Reported exposure to topic-specific statements ranged from 11.4% (manipulation of cigarette design) to 34.7% (health effects). Those with a high school education were significantly less likely than those with a college degree to report seeing the statements (OR=0.69, CI 0.50 to 0.95) and current smokers were significantly more likely than never smokers to report seeing them (OR=1.68, CI 1.12 to 2.53). CONCLUSIONS: In the first 6 months of corrective statement implementation, an estimated 40.6% of US adults reported at least one exposure to any corrective statement, and current smokers were more likely than never smokers to report exposure. Traditional media channels can be effective for tobacco-related message dissemination; however, they may fail to reach more than half of the adult population without additional targeted communication efforts.

Smoke-free and tobacco-free colleges and universities in the United States.

OBJECTIVE: To describe the number and proportion of accredited, degree-granting institutions with 100% smoke-free and 100% tobacco-free protections across the USA and by state. METHODS: Data on postsecondary education institutions from the US Department of Education National Center for Education Statistics Integrated Postsecondary Education Data System 2015, and smoke-free and tobacco-free campus protections from the American Nonsmokers' Rights Foundation's Smokefree and Tobacco-Free Colleges and Universities List 2017, were integrated to calculate the number and proportion of: (1) smoke-free and tobacco-free accredited, degree-granting institutions and (2) students and staff protected by campus policies and state laws. Campus protections are given a 100% smoke-free designation if smoking is not allowed on campus anywhere, at any time; 100% tobacco-free designations extend smoke-free protections to include non-combustible products such as smokeless tobacco. RESULTS: 823 accredited, degree-granting institutions (16.7%) representing 1816 individual campuses, sites and schools have either 100% smoke-free or 100% tobacco-free protections. An estimated 14.9 million college students (26.9%) and 8.9 million faculty and staff (25.4%) are protected by campus policies and state laws. Only three states and two territories have 100% smoke-free or 100% tobacco-free protections in over half of their institutions; four states and six territories have no known 100% smoke-free or 100% tobacco-free campus protections. CONCLUSIONS: In 2017, just 16.7% of accredited, degree-granting institutions in the USA had 100% smoke-free or 100% tobacco-free protections. Despite progress, more efforts can ensure that students and staff benefit from comprehensive 100% smoke-free and 100% tobacco-free protections at US colleges and universities.

Video-Based Interventions for Cancer Control: A Systematic Review.

Background. The use of videos for patient and public health education has been widely adopted and well documented in the literature. Aims. To conduct a systematic review of empirical studies that used video-based interventions for cancer prevention and control to document study designs, settings, approaches, targeted cancer sites and behaviors, and outcomes and to identify gaps in research and practice. Method. PubMed, PsychINFO, CINAHL, SCOPUS, and Web of Science were searched for studies published in the 30-year period from 1984 to 2014. Of 1,521 articles identified, duplicates were removed, and titles and abstracts of 779 were examined for eligibility. In all, 315 articles met the inclusion criteria and were coded by three independent coders. Interrater reliability was assessed. Descriptive frequencies and proportions were calculated. Results. Studies evaluating video interventions for cancer prevention and control have increased over time. The majority used randomized controlled trial designs (54%), followed by single-group pre-posttest designs (18%). Most were delivered in health care settings (39%). Detection (30%) and treatment (16%) were the cancer control continuum stages most frequently addressed, with breast cancer (29%) being the most frequently targeted cancer site. The behavior most commonly targeted was screening/early detection (39%). Topics such as caregiving, coping, palliative care, and end of life were rarely addressed. The majority (69%) reported being successful at achieving their stated objectives, though outcomes varied across studies. Conclusions. Video interventions have been widely utilized for cancer prevention and control, with demonstrated successes. Future research should test innovative designs and new delivery platforms and should include underrepresented topics and cancer sites.

Prevalence and Characteristics of Twitter Posts About Court-Ordered, Tobacco-Related Corrective Statements: Descriptive Content Analysis.

BACKGROUND: Three major US tobacco companies were recently ordered to publish corrective statements intended to prevent and restrain further fraud about the health effects of smoking. The court-ordered statements began appearing in newspapers and on television (TV) in late 2017. OBJECTIVE: The objective of this study was to examine the social media dissemination of the tobacco corrective statements during the first 6 months of the implementation of the statements. METHODS: We conducted a descriptive content analysis of Twitter posts using an iterative search strategy through Crimson Hexagon and randomly selected 19.74% (456/2309) of original posts occurring between November 1, 2017, and March 27, 2018, for coding and analysis. We assessed post volume over time, source or author, valence, linked content, and reference to the industry (eg, big tobacco, tobacco industry, and Philip Morris) and media outlet (TV or newspaper). Retweeted content was coded for source/author and prevalence. RESULTS: Most posts were published in November 2017, surrounding the initial release of the corrective statements. Content was generally neutral (58.7%, 268/456) or positive (33.3%, 152/456) in valence, included links to additional information about the statements (94.9%, 433/456), referred to the industry (87.7%, 400/456), and did not mention a specific media channel on which the statements were aired or published (15%). The majority of original posts were created by individual users (55.2%, 252/456), whereas the majority of retweeted posts were posted by public health organizations (51%). Differences by source are reported, for example, organization posts are more likely to include a link to additional information compared with individual users (P=.03). CONCLUSIONS: Conversations about the court-ordered corrective statements are taking place on Twitter and are generally neutral or positive in nature. Public health organizations may be increasing the prevalence of these conversations through social media engagement.