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RESEARCH AND PRACTICE |
All authors are with the Department of Health Behavior, Roswell Park Cancer Institute, Buffalo, NY.
Correspondence: Requests for reprints should be sent to Andrew Hyland, PhD, Roswell Park Cancer Institute, Department of Health Behavior, Elm and Carlton Streets, Buffalo, NY 14263 (e-mail: andrew.hyland{at}roswellpark.org).
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ABSTRACT |
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 TOP ABSTRACT INTRODUCTIONMETHODSRESULTSDISCUSSIONReferences |
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We examined whether smokers who purchased low-taxed cigarettes from American Indian reservations had lower quit attempt and cessation rates than did smokers who purchased cigarettes from full-price outlets. Smokers who bought cigarettes from American Indian reservations were half as likely to make a quit attempt and had a nonsignificant trend toward lower cessation rates (20% vs 10%) compared with those who bought full-priced cigarettes. Interventions that reduce price differentials are suggested to maximize the public health benefit of cigarette excise taxes.
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INTRODUCTION |
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TOPABSTRACTINTRODUCTIONMETHODSRESULTSDISCUSSIONReferences |
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Cigarettes sold on American Indian reservations in New York State do not include state cigarette excise or sales taxes. A recent population-based study by Hyland et al.7 found that 67% of the smokers in the western New York State counties of Erie and Niagara reported that they usually purchased cigarettes on American Indian reservations, where the average price per pack is 40% of the price found in typical convenience stores. The entire population of Erie and Niagara counties resides within 30 miles of an American Indian reservation (Niagara County contains 2 American Indian reservations, and Erie County is within an hour’s drive of 4 American Indian reservations). Few studies have been conducted to determine whether the availability of less expensive cigarettes influences future indicators of smoking cessation. Data from the International Tobacco Control Policy Evaluation Survey found that quit rates were about 10% lower after 1 year among those who had purchased cigarettes from low-taxed or untaxed sources.8
We aimed to test the hypothesis that smokers who usually bought their cigarettes from American Indian reservations had lower rates of making quit attempts and lower cessation rates than did smokers who usually bought their cigarettes from full-price outlets.
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METHODS |
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TOPABSTRACTINTRODUCTIONMETHODSRESULTSDISCUSSIONReferences |
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The usual source of cigarettes for baseline smokers was assessed with the following question: "From where are the cigarettes that you smoke usually purchased?" Respondents who answered "Indian reservation" were considered to be "usual" American Indian reservation purchasers. Cessation outcomes assessed were (1) making a quit attempt for a day or longer and (2) reporting currently smoking "not at all" at the follow-up survey.
Other control variables included gender, race, age, time from waking to first cigarette of the day, education, income, and county of residence.
The association between American Indian reservation purchasing and indicators of smoking cessation was examined with logistic regression models, while potential confounders were controlled. Results were weighted to the race, gender, and age distribution of the baseline smoker sample.
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RESULTS |
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TOPABSTRACTINTRODUCTIONMETHODSRESULTSDISCUSSIONReferences |
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The percentage of the smokers who made quit attempts between the baseline and the follow-up interview was lower among those whose usual source of cigarettes was American Indian reservations at baseline (relative risk [RR] = 0.37; 95% confidence interval [CI] = 0.25, 0.54; P< .01). After we controlled for other factors related to smoking cessation, the relation was still statistically significant (RR = 0.46; 95% CI = 0.29, 0.74; P< .01).
Among those who reported usually purchasing their cigarettes from an American Indian reservation at baseline, 10% had quit smoking by the follow-up survey, compared with 20% of the smokers who reported usually purchasing their cigarettes from some other source at baseline (RR = 0.47; 95% CI = 0.28, 0.77; P< .01). After we controlled for other factors related to smoking cessation, this relation approached, but did not achieve, statistical significance (RR = 0.61; 95% CI = 0.33, 1.13; P= .12) (Table 1
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DISCUSSION |
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TOPABSTRACTINTRODUCTIONMETHODSRESULTSDISCUSSIONReferences |
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Although the observed association for quitting in the current study was not statistically significant, the estimated effect size was about 40% and is much greater than previously reported results.8 This is not unexpected because the price differential from American Indian reservation sales compared with other sources is so great (60% cheaper).7 The lack of statistical significance may result from a relatively small number of quitters over the 1-year follow-up period. Furthermore, more research is needed to determine how generalizable these findings are to other locations.
In summary, most smokers in this sample reported making efforts to obtain low-taxed cigarettes from American Indian reservations, and this was associated with making fewer quit attempts. A borderline nonsignificant decrease in smoking cessation also was observed. The availability of low-taxed or untaxed cigarettes may inhibit motivation to attempt to quit smoking, thus undermining the public health benefit of higher cigarette excise taxes. Thus, interventions that reduce price differentials, such as a law prohibiting delivery of cigarettes to New York State addresses by mail, collecting excise taxes on cigarettes sold to American Indian retailers at the wholesale level, and raising the federal excise tax to reduce relative pricing differentials across borders, are suggested as a means to maximize the public health benefit of cigarette excise taxes.
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Acknowledgments |
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Human Participant Protection
The institutional review board at Roswell Park Cancer Institute approved data collection procedures used in this survey.
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Footnotes |
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Contributors
A. Hyland originated the study and supervised all aspects of its implementation. C. Higbee completed the analyses and contributed to the writing of the brief. Q. Li assisted with the analyses. J. E. Bauer assisted with the study development and analyses and contributed to the writing of the brief. G. A. Giovino assisted with the study development and reviewed drafts. T. Alford assisted with the rationale for the study and reviewed drafts. K. M. Cummings assisted with the rationale for the study and contributed to the writing of the brief. All authors helped to conceptualize ideas and interpret findings.
Accepted for publication January 6, 2005.
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References |
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TOPABSTRACTINTRODUCTIONMETHODSRESULTSDISCUSSIONReferences |
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2. Emery S, White MM, Gilpin EA, Pierce JP. Was there significant tax evasion after the 1999 50 cent per pack cigarette tax increase in California? Tob Control. 2002;11:130–134.
3. Chaloupka FJ. Macro-social influences: the effects of prices and tobacco-control policies on the demand for tobacco products. Nicotine Tob Res. 1999;(1 suppl 1): S105–S109.
4. Cummings KM, Hyland A, Lewit E, Shopland D. Use of discount and generic cigarettes by smokers in 20 U.S. communities, 1988–1993. Tob Control.1997; 6(suppl 2):S25–S30.
5. Campaign for Tobacco-Free Kids. Special report: higher cigarette taxes: reduce smoking, save lives, save money. Available at: http://tobaccofreekids.org/reports/prices. Accessed May 1, 2004.
6. Centers for Disease Control and Prevention, Office on Smoking and Health. State tobacco activities tracking and evaluation system. Available at: http://www2.cdc.gov/nccdphp/osh/state. Accessed August 1, 2003.
7. Hyland A, Higbee C, Bauer JE, Giovino GA, Cummings KM. Cigarette purchasing behaviors when prices are high. J Public Health Manag Pract. 2004;10: 497–500.[Medline]
8. Cummings KM, Hyland A, Travers M, et al. Cigarette purchase patterns and cigarette prices: US data from the International Tobacco Control Policy Evaluation Survey. Paper presented at: Society for Research on Nicotine and Tobacco; February 2004; Scottsdale, Ariz.
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