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Featured researches published by Doris G. Gammon.


American Journal of Preventive Medicine | 2016

National and State-Specific Sales and Prices for Electronic Cigarettes-U.S., 2012-2013.

Brett R. Loomis; Todd Rogers; Brian A. King; Daniel Dench; Doris G. Gammon; Erika Fulmer; Israel T. Agaku

INTRODUCTION The growing market for electronic cigarettes (e-cigarettes) has been widely reported in the media, but very little objective data exist in the scientific literature, and no data have been published on state-specific trends in prices or sales. Our objective is to assess state-specific annual sales and average prices for e-cigarettes in the U.S. METHODS Commercial retail scanner data were used to assess total dollar sales and average price per unit for disposable e-cigarettes, starter kits, and cartridge refills for selected states and the total U.S. during 2012-2013. Data were analyzed in 2014. Data were available for convenience stores (29 states) and food, drug, and mass merchandisers (44 states). RESULTS In convenience stores, dollar sales increased markedly during 2012-2013: 320.8% for disposable e-cigarettes, 72.4% for starter kits, and 82% for cartridges. In food, drug, and mass merchandisers, dollar sales increased 49.5% for disposable e-cigarettes, 89.4% for starter kits, and 126.2% for cartridges. Average prices across all product categories increased in convenience stores and decreased in food, drug, and mass merchandisers. Sales and prices varied substantially across states included in the analyses. CONCLUSIONS Sales of all e-cigarette device types grew considerably in convenience stores and food, drug, and mass merchandisers during 2012-2013. The market for e-cigarettes is growing rapidly, resulting in dynamic sales and price changes that vary across the U.S. Continued state-specific surveillance of the e-cigarette market is warranted.


Tobacco Control | 2016

Effect of price changes in little cigars and cigarettes on little cigar sales: USA, Q4 2011–Q4 2013

Doris G. Gammon; Brett R. Loomis; Daniel Dench; Brian A. King; Erika Fulmer; Todd Rogers

Introduction Little cigars are comparable to cigarettes in terms of shape, size, filters and packaging. Disproportionate tobacco excise taxes, which directly affect purchase price, may lead consumers to substitute cigarettes with less expensive little cigars. This study estimated the effects of little cigar and cigarette prices on little cigar sales. Methods Sales data from a customised retail scanner database were used to model a log–log equation to infer own-price and cross-price elasticity of demand for little cigars relative to little cigar and cigarette prices, respectively, from quarter 4 of 2011 to quarter 4 of 2013. Data were available for convenience stores (C-stores) (n=29 states); food, drug and mass merchandisers (FDMs) (n=44 states); and C-stores and FDMs combined (n=27 states). The dependent variable was per capita little cigar pack sales, and key independent variables were the price index for little cigars and cigarettes. Results A 10% increase in little cigar price was associated with a 25% (p<0.01) decrease in little cigar sales in C-stores alone, and a 31.7% (p<0.01) decrease in C-stores and FDMs combined. A 10% increase in cigarette price was associated with a 21.5% (p<0.05) increase in little cigar sales in C-stores, and a 27.3% (p<0.01) increase in C-stores and FDMs combined. Conclusions Our results suggest that US cigarette smokers are avoiding the high cost of cigarettes by switching to lower priced little cigars. Increasing and equalising prices among comparable products, like cigarettes and little cigars, may motivate cost-conscious smokers to quit.


American Journal of Public Health | 2017

Sales of Nicotine-Containing Electronic Cigarette Products: United States, 2015

Kristy L. Marynak; Doris G. Gammon; Todd Rogers; Ellen M. Coats; Tushar Singh; Brian A. King

Objectives To assess the proportion of electronic cigarette (e-cigarette) products sold in the United States that contain nicotine according to retail scanner data. Methods We obtained unit sales data from January 11, 2015, to December 12, 2015, from The Nielsen Company for convenience stores; supermarkets; mass merchandisers; drug, club, and dollar stores; and Department of Defense commissaries. The data did not include purchases from tobacco specialty shops, “vape shops,” or online sources. Nicotine content was assessed by product type (disposables, rechargeables, and refills), region, and flavor status based on nicotine strength listed in the Universal Product Codes. For the 36.7% of entries lacking nicotine content information, we conducted Internet searches by brand, product, and flavor. Results In 2015, 99.0% of e-cigarette products sold contained nicotine, including 99.0% of disposables, 99.7% of rechargeables, and 98.8% of refills. Overall, 98.7% of flavored e-cigarette products and 99.4% of nonflavored e-cigarette products contained nicotine. Conclusions In 2015, almost all e-cigarette products sold in US convenience stores and other assessed channels contained nicotine. Public Health Implications Findings reinforce the importance of warning labels for nicotine-containing products, ingredient reporting, and restrictions on sales to minors.


Nicotine & Tobacco Research | 2018

Trends in Sales of Flavored and Menthol Tobacco Products in the United States During 2011–2015

Nicole M. Kuiper; Doris G. Gammon; Brett R. Loomis; Kyle Falvey; Teresa W. Wang; Brian A. King; Todd Rogers

Introduction Flavors can mask the harshness of tobacco and make it appealing to young people. This study assessed flavored and menthol tobacco product sales at the national and state levels. Methods Universal Product Code tobacco sales data collected by Nielsen were combined for convenience stores and all-outlets-combined during October 22, 2011-January 9, 2016. Products were characterized as flavored, menthol, or non-flavored/non-menthol. Total unit sales, and the proportion of flavored and menthol unit sales, were assessed nationally and by state for seven tobacco products. Joinpoint regression was used to assess trends in average monthly percentage change. Results Nationally, the proportion of flavored and menthol sales in 2015 was as follows: cigarettes (32.5% menthol), large cigars (26.1% flavored), cigarillos (47.5% flavored, 0.2% menthol), little cigars (21.8% flavored, 19.4% menthol), chewing tobacco (1.4% flavored, 0.7% menthol), moist snuff (3.0% flavored, 57.0% menthol), and snus (88.5% menthol). From 2011 to 2015, sales increased for flavored cigarillos and chewing tobacco, as well as for menthol cigarettes, little cigars, moist snuff, and snus. Sales decreased for flavored large cigars, moist snuff, and snus, and for menthol chewing tobacco. State-level variations were observed by product; for example, flavored little cigar sales ranged from 4.4% (Maine) to 69.3% (Utah) and flavored cigarillo sales ranged from 26.6% (Maine) to 63.0% (Maryland). Conclusions Menthol and flavored sales have increased since 2011, particularly for the products with the highest number of units sold, and significant state variation exists. Efforts to restrict flavored tobacco product sales could reduce overall U.S. tobacco consumption. Implications Flavors in tobacco products can mask the harshness of tobacco and make these products more appealing to young people. This is the first study to assess national and state-level trends in flavored and menthol tobacco product sales. These findings underscore the importance of population-based interventions to address flavored tobacco product use at the national, state, and local levels. Additionally, further monitoring of flavored and menthol tobacco product sales can inform potential future regulatory efforts at the national, state, and local levels.


Tobacco regulatory science | 2017

Compliance with a Sales Policy on Flavored Non-cigarette Tobacco Products

Todd Rogers; Elizabeth M. Brown; Tarsha M. Mccrae; Doris G. Gammon; Matthew E. Eggers; Kimberly A. Watson; Martha C. Engstrom; Cindy Tworek; Enver Holder-Hayes; James Nonnemaker

Objectives We assessed the effect of the New York City (NYC) policy restricting sales of flavored non-cigarette tobacco products on retail sales using a quasi-experimental comparison design. We also studied possible cross-border purchasing and product substitution by consumers. Methods We compiled retail scanner data for January 2010-January 2014 for NYC, a proximal comparison area (PCA) surrounding NYC, and the US. We used regression models to assess trends in sales of flavored cigars, smokeless tobacco (SLT), loose tobacco (RYO), and total cigars in all areas. Results Sales of flavored cigars (-22.3%), SLT (-97.6%), and RYO (-42.5%) declined following policy implementation (all ps < .01). Flavored cigar sales declined nonsignificantly in the comparison areas. An average 7.4% reduction in total cigar sales was seen in NYC following the policy (p < .01), as cigar sales increased 12% nationally, suggesting that NYC consumers did not substitute flavored cigars with non-flavored varieties. Conclusions Implementation of the NYC policy was associated with significant reductions in sales of all restricted products, both absolutely and relative to comparison areas. Despite persistent sales of flavored cigars, overall cigar sales in NYC declined following the policy, although more intensive enforcement is needed to ensure greater policy compliance.


Tobacco Control | 2016

Internet cigarette vendors make tax-free claims and sell cigarettes cheaper than retail outlets

Marissa G. Hall; Rebecca S. Williams; Doris G. Gammon; Kurt M. Ribisl

Objective This paper aims to (1) assess whether promotion of tax-free sales among Internet cigarette vendors (ICVs) changed between 2009 and 2011, (2) determine which types of ICVs are most likely to promote tax-free sales (eg, US-based, international or mixed location ICVs), and (3) compare the price of cigarettes advertised in ICVs to prices at brick-and-mortar retail outlets. Methods We analysed data from the 200 most popular ICVs in 2009, 2010 and 2011 to assess promotion of tax-free sales and the price of Marlboro cigarette cartons. We used Nielsen scanner data from 2009, 2010 and 2011 to measure the price of Marlboro cartons in US grocery stores. Findings The odds of ICVs claiming tax-free status were higher in 2011 than in 2009 (OR=1.58, p<0.01). Mixed location and international vendors had higher odds of promoting tax-free sales than US-based ICVs (OR=4.95 and 6.23, respectively, both p<0.001). In 2011, the average price of one Marlboro carton was


Preventing Chronic Disease | 2018

Trends in Unit Sales of Flavored and Menthol Electronic Cigarettes in the United States, 2012-2016.

Nicole M. Kuiper; Brett R. Loomis; Kyle Falvey; Doris G. Gammon; Brian A. King; Teresa W. Wang; Todd Rogers

35.27 online, compared to


Preventing Chronic Disease | 2018

National and State-Specific Unit Sales and Prices for Electronic Cigarettes, United States, 2012–2016

Teresa W. Wang; Ellen M. Coats; Doris G. Gammon; Brett R. Loomis; Nicole M. Kuiper; Todd Rogers; Brian A. King

52.73 in US grocery stores. We estimated that in 2011, a pack-a-day smoker living in an area with high cigarette prices would save


Nicotine & Tobacco Research | 2018

Sales Trends in Price-Discounted Cigarettes, Large Cigars, Little Cigars, and Cigarillos—United States, 2011–2016

Teresa W. Wang; Kyle Falvey; Doris G. Gammon; Brett R. Loomis; Nicole M. Kuiper; Todd Rogers; Brian A. King

1508 per year buying cigarettes online. Conclusions ICVs commonly promote tax-free sales, and cigarettes are cheaper online compared to US grocery stores. Better enforcement of the Prevent All Cigarette Trafficking Act is needed to address tax-free cigarette sales among ICVs.


JAMA | 2018

Electronic Cigarette Sales in the United States, 2013-2017

Brian A. King; Doris G. Gammon; Kristy L. Marynak; Todd Rogers

Introduction The use of flavored tobacco products, including electronic cigarettes (e-cigarettes), is common in the United States, and flavored products are particularly appealing to young people. The objective of this study was to describe national and state trends in flavored and menthol e-cigarette unit sales. Methods We examined data on 4 types of e-cigarette products (rechargeables, disposables, prefilled cartridges, and e-liquid refills). We used Universal Product Code retail scanner data from 2 sources: 1) convenience stores and 2) all other outlets combined, including supermarkets, drug stores, mass merchandisers (including Walmart), dollar stores, club stores, and US Department of Defense commissaries. We aggregated data in 4-week periods for the 48 contiguous states and the District of Columbia for the 5-year period from 2012 through 2016. Data from vape shops and internet sales were not available. We used Joinpoint regression to assess trends. Results From 2012 through 2016, flavored e-cigarette sales as a percentage of all e-cigarette sales increased nationally (from 2.4% to 19.8%) and in all but 4 states (North Dakota, South Dakota, Utah, and Vermont). Nationally, flavored disposable and prefilled cartridge sales increased. Menthol e-cigarette sales were stable nationally at 35% to 40%, while the percentage of menthol disposable, prefilled cartridge, and e-liquid refill sales decreased. By state, menthol e-cigarette sales increased in 2 states (Idaho and Nebraska) and decreased in 7 states. During 2015–2016, the percentage of flavored sales decreased in one state (Rhode Island) and increased in 29 states. Conclusion These findings demonstrate that sales of flavored e-cigarette products have increased dramatically since 2012, with variations by product type and state. Continued monitoring of sales trends at all retail outlets can inform federal, state, and local efforts to address flavored tobacco product use, including e-cigarettes, in the United States.

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Brian A. King

Centers for Disease Control and Prevention

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Nicole M. Kuiper

Centers for Disease Control and Prevention

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Teresa W. Wang

Centers for Disease Control and Prevention

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Kristy L. Marynak

Centers for Disease Control and Prevention

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Erika Fulmer

Centers for Disease Control and Prevention

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Kyle Falvey

Research Triangle Park

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