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Dive into the research topics where Catherine L. Jo is active.

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Featured researches published by Catherine L. Jo.


Tobacco Control | 2012

Tobacco control is losing ground in the Web 2.0 era: invited commentary

Kurt M. Ribisl; Catherine L. Jo

Freemans article1 on new media describes a number of vexing challenges and exciting opportunities for tobacco control. In the offline world, we have many solid ‘wins’ for tobacco control where we have strong evidence of what policies and programmes work and we have successfully put them into practice. These strategies include increasing tobacco excise taxes, passing smoke-free air laws, implementing countermarketing campaigns and offering tobacco cessation assistance.2–5 By contrast, with Internet 2.0,1 the field of tobacco control does not have a comprehensive list of effective policies and programmes to counteract the sale and promotion of tobacco products in the new media environment. We are distressed to see that with the progression of new technology, the gap between ‘pro-tobacco’ and tobacco control forces seems to be growing larger. This should be a wakeup call for a more concerted effort. For example, in the offline world, one of our greatest concerns is aggressive price discounting, which leads to cheaper cigarettes that undermine quit attempts and undercut the impact of price increases.6–8 A store might offer a carton …


Tobacco Control | 2016

Price-related promotions for tobacco products on Twitter

Catherine L. Jo; Rachel Kornfield; Yoonsang Kim; Sherry Emery; Kurt M. Ribisl

Objectives This cross-sectional study examined price-related promotions for tobacco products on Twitter. Methods Through the Twitter Firehose, we obtained access to all public tweets posted between 6 December 2012 and 20 June 2013 that contained a keyword suggesting a tobacco-related product or behaviour (eg, cigarette, vaping) in addition to a keyword suggesting a price promotion (eg, coupon, discount). From this data set of 155 249 tweets, we constructed a stratified sampling frame based on the price-related keywords and randomly sampled 5000 tweets (3.2%). Tweets were coded for product type and promotion type. Non-English tweets and tweets unrelated to a tobacco or cessation price promotion were excluded, leaving an analytic sample of 2847 tweets. Results The majority of tweets (97.0%) mentioned tobacco products while 3% mentioned tobacco cessation products. E-cigarettes were the most frequently mentioned product (90.1%), followed by cigarettes (5.4%). The most common type of price promotion mentioned across all products was a discount. About a third of all e-cigarette-related tweets included a discount code. Banned or restricted price promotions comprised about 3% of cigarette-related tweets. Conclusions This study demonstrates that the vast majority of tweets offering price promotions focus on e-cigarettes. Future studies should examine the extent to which Twitter users, particularly youth, notice or engage with these price promotion tweets.


Tobacco Control | 2016

Differences in the design and sale of e-cigarettes by cigarette manufacturers and non-cigarette manufacturers in the USA

Andrew B. Seidenberg; Catherine L. Jo; Kurt M. Ribisl

Background Three categories of e-cigarette brands have emerged within the US market: e-cigarette brands developed by cigarette manufacturers, brands acquired by cigarette manufacturers and brands with no cigarette manufacturer affiliation. In the absence of federal regulatory oversight of e-cigarettes, we assessed differences in e-cigarette products and sales practices across these categories. Methods Brand websites for top-selling e-cigarette brands from each of these categories were examined in October of 2015 to compare website access restrictions, online sales practices and products sold, including e-cigarette model type (eg, ‘cigalike’ vs advanced systems) and options available (eg, flavoured, nicotine free). Results Website access to brands developed by cigarette manufacturers was restricted to users aged 21 years or older, and one website required user registration. In addition, these brands were exclusively reusable/rechargeable ‘cigalikes.’ Limited flavour options were available for these products, and nicotine-free options were not sold. In contrast, brands acquired by cigarette manufacturers and brands with no cigarette manufacturer affiliation generally required website visitors to be 18, offered a nicotine-free option, and most offered disposable products and an array of flavoured products (eg, fruit/candy flavours). Conclusions This exploratory study finds differences in e-cigarette products and sales practices across these three e-cigarette brand categories, with brands developed by cigarette manufacturers adopting a particularly distinctive product and sales strategy. Anticipated regulation of e-cigarettes in the USA may be influencing these product and sales decisions.


Tobacco Control | 2015

US consumer interest in non-cigarette tobacco products spikes around the 2009 federal tobacco tax increase

Catherine L. Jo; John W. Ayers; Benjamin M. Althouse; Sherry Emery; Jidong Huang; Kurt M. Ribisl

Objectives This quasi-experimental longitudinal study monitored aggregate Google search queries as a proxy for consumer interest in non-cigarette tobacco products (NTP) around the time of the 2009 US federal tobacco tax increase. Methods Query trends for searches mentioning common NTP were downloaded from Googles public archives. The mean relative increase was estimated by comparing the observed with expected query volume for the 16 weeks around the tax. Results After the tax was announced, queries spiked for chewing tobacco, cigarillos, electronic cigarettes (‘e-cigarettes’), roll-your-own (RYO) tobacco, snuff, and snus. E-cigarette queries were 75% (95% CI 70% to 80%) higher than expected 8 weeks before and after the tax, followed by RYO 59% (95% CI 53% to 65%), snus 34% (95% CI 31% to 37%), chewing tobacco 17% (95% CI 15% to 20%), cigarillos 14% (95% CI 11% to 17%), and snuff 13% (95% CI 10% to 14%). Unique queries increasing the most were ‘ryo cigarettes’ 427% (95% CI 308% to 534%), ‘ryo tobacco’ 348% (95% CI 300% to 391%), ‘best electronic cigarette’ 221% (95% CI 185% to 257%), and ‘e-cigarette’ 205% (95% CI 163% to 245%). Conclusions The 2009 tobacco tax increase triggered large increases in consumer interest for some NTP, particularly e-cigarettes and RYO tobacco.


Journal of Medical Internet Research | 2017

Perceptions of menthol cigarettes among twitter users: Content and sentiment analysis

Shyanika W. Rose; Catherine L. Jo; Steven Binns; Melissa Buenger; Sherry Emery; Kurt M. Ribisl

Background Menthol cigarettes are used disproportionately by African American, female, and adolescent smokers. Twitter is also used disproportionately by minority and younger populations, providing a unique window into conversations reflecting social norms, behavioral intentions, and sentiment toward menthol cigarettes. Objective Our purpose was to identify the content and frequency of conversations about menthol cigarettes, including themes, populations, user smoking status, other tobacco or substances, tweet characteristics, and sentiment. We also examined differences in menthol cigarette sentiment by prevalent categories, which allowed us to assess potential perceptions, misperceptions, and social norms about menthol cigarettes on Twitter. This approach can inform communication about these products, particularly to subgroups who are at risk for menthol cigarette use. Methods Through a combination of human and machine classification, we identified 94,627 menthol cigarette-relevant tweets from February 1, 2012 to January 31, 2013 (1 year) from over 47 million tobacco-related messages gathered prospectively from the Twitter Firehose of all public tweets and metadata. Then, 4 human coders evaluated a random sample of 7000 tweets for categories, including sentiment toward menthol cigarettes. Results We found that 47.98% (3194/6657) of tweets expressed positive sentiment, while 40.26% (2680/6657) were negative toward menthol cigarettes. The majority of tweets by likely smokers (2653/4038, 65.70%) expressed positive sentiment, while 91.2% (320/351) of nonsmokers and 71.7% (91/127) of former smokers indicated negative views. Positive views toward menthol cigarettes were predominant in tweets that discussed addiction or craving, marijuana, smoking, taste or sensation, song lyrics, and tobacco industry or marketing or tweets that were commercial in nature. Negative views toward menthol were more common in tweets about smoking cessation, health, African Americans, women, and children and adolescents—largely due to expression of negative stereotypes associated with these groups’ use of menthol cigarettes. Conclusions Examinations of public opinions toward menthol cigarettes through social media can help to inform the framing of public communication about menthol cigarettes, particularly in light of potential regulation by the European Union, US Food and Drug Administration, other jurisdictions, and localities.


International Journal of Environmental Research and Public Health | 2017

A national study of social media, television, radio, and internet usage of adults by sexual orientation and smoking status: Implications for campaign design

Andrew B. Seidenberg; Catherine L. Jo; Kurt M. Ribisl; Joseph G. L. Lee; Francisco O. Butchting; Yoonsang Kim; Sherry Emery

Background: Smoking rates among lesbian, gay, and bisexual (LGB) people significantly exceed that of heterosexuals. Media interventions are an important part of tobacco control efforts, but limited information is available on LGB people’s media use. Methods: A nationally representative sample of 12,900 U.S. adults completed an online questionnaire assessing media use, smoking status, and demographic information. Multivariable logistic regression was used to assess relationships between media use with sexual orientation and smoking status. Results: A total of 590 (4.6%) respondents identified as LGB, of which 29% were smokers. Regardless of sexual orientation and smoking status, the Internet was the most popular media channel used, followed by television and radio. LGB respondents had significantly greater odds of having accounts on social media websites, accessing Facebook daily, and being a frequent Internet user, compared to heterosexual respondents. Similar media use was found between smokers and non-smokers, but smokers had greater odds of being frequent television viewers and frequent Internet users, compared to non-smokers. Conclusions: Compared to heterosexuals, LGB respondents reported greater use of the Internet, especially social media. Media campaigns targeting LGB populations can maximize reach by utilizing social media alongside traditional media channels.


Nicotine & Tobacco Research | 2015

Tobacco Products Sold by Internet Vendors Following Restrictions on Flavors and Light Descriptors

Catherine L. Jo; Rebecca S. Williams; Kurt M. Ribisl

INTRODUCTION The 2009 Family Smoking Prevention and Tobacco Control Act bans characterizing flavors (e.g., grape, strawberry) in cigarettes, excluding tobacco and menthol, and prohibits companies from using misleading descriptors (e.g., light, low) that imply reduced health risks without submitting scientific data to support the claim and obtaining a marketing authorization from the U.S. Food and Drug Administration. This observational study examines tobacco products offered by Internet cigarette vendors (ICV) pre- and postimplementation of the ban on characterizing flavors in cigarettes and the restriction on misleading descriptors. METHODS Cross-sectional samples of the 200 most popular ICVs in 2009, 2010, and 2011 were identified. Data were analyzed in 2012 and 2013. RESULTS In 2011 the odds for selling cigarettes with banned flavors or misleading descriptors were 0.40 times that for selling the products in 2009 (95% confidence interval [CI] = 0.18, 0.88). However, 89% of vendors continued to sell the products, including 95.8% of international vendors. Following the ban on characterizing flavors, ICVs began selling potential alternative products. In 2010, the odds for selling flavored little cigars were 1.71 (95% CI = 1.09, 2.69) times that for selling the product in 2009 and, for clove cigars, were 5.50 (95% CI = 2.36, 12.80) times that for selling the product in 2009. CONCLUSIONS Noncompliance with the ban on characterizing flavors and restriction on misleading descriptors has been high, especially among international vendors. Many vendors appear to be circumventing the intent of the flavors ban by selling unbanned flavored cigars, in some cases in lieu of flavored cigarettes.


Tobacco Control | 2017

Cigarette couponing goes mobile

Andrew B. Seidenberg; Catherine L. Jo

Smartphone use has rapidly increased, and by 2020, there will be an estimated 6.1 billion Internet-enabled mobile phone users worldwide.1 This phenomenon has created new opportunities for the public health and medical communities, which have used smartphones to collect health information, conduct surveillance and promote behaviour changes, such as smoking cessation.2–4 The popularity of smartphones has also attracted leading American cigarette manufacturers Altria and Reynolds American, who have begun offering digital cigarette coupons redeemable using smartphones. Altria has introduced the MHQ App, which offers two coupons per week. Using the smartphones global positioning system, the app identifies nearby tobacco retailers that accept Marlboro digital coupons (figure 1A). The app user selects a retailer for redemption, and a digital coupon (eg, ‘


Preventive Medicine | 2017

Child-resistant and tamper-resistant packaging: A systematic review to inform tobacco packaging regulation

Catherine L. Jo; Anita Ambs; Carolyn M. Dresler; Cathy L. Backinger

1.50 off one pack’) …


Tobacco regulatory science | 2018

Effects of E-cigarette Advertising Messages and Cues on Cessation Outcomes

Catherine L. Jo; Shelley D. Golden; Seth M. Noar; Christine Rini; Kurt M. Ribisl

OBJECTIVE We aimed to investigate the effects of special packaging (child-resistant, adult-friendly) and tamper-resistant packaging on health and behavioral outcomes in order to identify research gaps and implications for packaging standards for tobacco products. METHODS We searched seven databases for keywords related to special and tamper-resistant packaging, consulted experts, and reviewed citations of potentially relevant studies. 733 unique papers were identified. Two coders independently screened each title and abstract for eligibility. They then reviewed the full text of the remaining papers for a second round of eligibility screening. Included studies investigated a causal relationship between type of packaging or packaging regulation and behavioral or health outcomes and had a study population composed of consumers. Studies were excluded on the basis of publication type, if they were not peer-reviewed, and if they had low external validity. Two reviewers independently coded each paper for study and methodological characteristics and limitations. Discrepancies were discussed and resolved. RESULTS The review included eight studies: four assessing peoples ability to access the contents of different packaging types and four evaluating the impact of packaging requirements on health-related outcomes. Child-resistant packaging was generally more difficult to open than non-child-resistant packaging. Child-resistant packaging requirements have been associated with reductions in child mortality. CONCLUSIONS Child-resistant packaging holds the expectation to reduce tobacco product poisonings among children under six.

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Kurt M. Ribisl

University of North Carolina at Chapel Hill

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Andrew B. Seidenberg

University of North Carolina at Chapel Hill

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Sherry Emery

University of Illinois at Chicago

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Anita Ambs

Food and Drug Administration

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Carolyn M. Dresler

Food and Drug Administration

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Cathy L. Backinger

Food and Drug Administration

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Christine Rini

University of North Carolina at Chapel Hill

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Jidong Huang

Georgia State University

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