Karen B. Friend

Examining the effects of tobacco treatment policies on smoking rates and smoking related deaths using the SimSmoke computer simulation model

Objectives: To develop a simulation model to predict the effects of different smoking treatment policies on quit rates, smoking rates, and smoking attributable deaths. Methods: We first develop a decision theoretic model of quitting behaviour, which incorporates the decision to quit and the choice of treatment. A model of policies to cover the costs of different combinations of treatments and to require health care provider intervention is then incorporated into the quit model. The policy model allows for the smoker to substitute between treatments and for policies to reduce treatment effectiveness. The SimSmoke computer simulation model is then used to examine policy effects on smoking rates and smoking attributable deaths. Results: The model of quit behaviour predicts a population quit rate of 4.3% in 1993, which subsequently falls and then increases in recent years to 4.5%. The policy model suggests a 25% increase in quit rates from a policy that mandates brief interventions and the coverage of all proven treatments. Smaller effects are predicted from policies that mandate more restricted coverage of treatments, especially those limited to behavioural treatment. These policies translate into small reductions in the smoking rate at first, but increase to as much as a 5% reduction in smoking rates. They also lead to substantial savings in lives. Conclusions: Tobacco treatment policies, especially those with broad and flexible coverage, have the potential to increase smoking cessation substantially and decrease smoking rates in the short term, with fairly immediate reductions in deaths.

Local tobacco policy and tobacco outlet density: associations with youth smoking

PURPOSE This study investigates the associations between local tobacco policy, tobacco outlet density, and youth smoking. A primary focus is on whether local tobacco policy moderates the relation between outlet density and youth smoking. METHODS In all, 1,491 youth (51.9% male, mean age = 14.7 years, standard deviation = 1.05) in 50 midsized California cities were surveyed through a computer-assisted telephone interview. Measures of local clean air policy and youth access policy were created based on a review of tobacco policies in these cities. Outlet density was calculated as the number of retail tobacco outlets per 10,000 persons, and city characteristics were obtained from 2000 U.S. Census data. RESULTS Using multilevel regression analyses and controlling for city characteristics, tobacco outlet density was positively associated with youth smoking. No significant main effects were found for the two tobacco policy types on any of the smoking outcomes after controlling for interactions and covariates. However, statistically significant interactions were found between local clean air policy and tobacco outlet density for ever smoked and past 12-month cigarette smoking. Comparisons of simple slopes indicated that the positive associations between tobacco outlet density and youth smoking behaviors were stronger at the lowest level of local clean air policy compared with the moderate and high levels. CONCLUSIONS Our results suggest that tobacco outlet density is related to youth smoking. In addition, local clean air policy may act as a moderator of relationship between tobacco outlet density and youth smoking, such that density is less important at moderate and high levels of this tobacco policy.

Smoking Cessation and Alcohol Consumption in Individuals in Treatment for Alcohol Use Disorders

Abstract Most individuals with alcohol use disorders are dependent on both alcohol and nicotine, and combined use of both substances is more damaging to health than use of either alone. Although research indicates that alcoholics can quit smoking, discrepant results have been reported regarding whether smoking cessation is associated with increased risk of alcohol relapse. The purpose of this paper was to examine the relationship between smoking cessation and alcohol consumption using data from Project MATCH. Of the 1,307 participants who smoked at any point during the study, 160 (12%) quit. Quitters consumed less alcohol than those who continued smoking. In addition, quitters demonstrated a significant reduction in alcohol consumption at the time of smoking cessation, which was sustained for six months post-cessation. These findings suggest that individuals in treatment for alcohol use disorders who are motivated to stop smoking can safely be encouraged to do so without jeopardizing their sobriety.

Effect of policies directed at youth access to smoking: results from the SimSmoke computer simulation model

OBJECTIVES To develop a simulation model to predict the effects of youth access policies on retail compliance, smoking rates, and smoking attributable deaths. METHODS A model of youth access policies is developed based on empirical research and a theory of perceived risk. The model incorporates substitution into other sources as retail sales are restricted, and is used to project the number of smokers and smoking related deaths. Various policies to limit youth access to cigarettes are evaluated, and we explore how efficient policies may be developed. RESULTS The model predicts that a well designed and comprehensive policy that includes sufficient compliance checks, penalties, and community involvement has the potential to reduce the number of young smokers. Because smoking related deaths occur later in life, the effects on health are largely delayed. CONCLUSIONS A well designed youth access policy has the ability to affect youth smoking rates in the short term, and will lead to savings in lives in future years. The ability of retail oriented policies to reduce youth smoking, however, is limited. Other tobacco control policies, including those directed at non-retail sources of cigarettes, are also needed.

A review of the literature on policies directed at the youth consumption of sugar sweetened beverages.

Sugar sweetened beverages (SSB) constitute a large percentage of energy consumed by youth. This paper reviews the literature on school nutrition policies and price interventions directed at youth SSB consumption. In addition to considering the direct effect of policies on SSB consumption, we provide an overview of the literature on how SSB consumption affects total energy intake (TEI) and BMI, as well as on how TEI affects BMI. By considering each of these links, we attempted to gauge the effect of policies directed at SSB consumption, as well as highlight areas that merit future research. We found that school nutrition and price policies reduce SSB consumption and that reduced SSB consumption is associated with a reduction in energy intake that can influence BMI. Policies directed at SSB consumption can play an important role in reducing youth overweight and obesity.

A General Causal Model to Guide Alcohol, Tobacco, and Illicit Drug Prevention: Assessing the Research Evidence

The problems associated with the use of alcohol, tobacco, and other drugs (ATOD) extract a significant health, social, and economic toll on American society. While the field of substance abuse prevention has made great strides during the past decade, two major challenges remain. First, the field has been disorganized and fragmented with respect to its research and prevention practices; that is, there are often separate ATOD prevention “specialists.” Second, both the prevention researchers who test the efficacy of specific prevention strategies and the practitioners who implement prevention efforts often lack an overall perspective to guide strategy selection. To address these limitations, we present an ATOD causal model that seeks to identify those variables (Domains) that are theoretically salient and empirically connected across alcohol, tobacco, and illicit drugs. For the researcher, the model demonstrates important commonalities, as well as gaps, in the literature. For the practitioner, the model is a means to recognize both the complexity of the community system that produces ATOD problems and the multiple intervention points that are possible within this system. Researchers and practitioners are thus challenged to work synergistically to find effective and cost-effective approaches to change or reduce ATOD use and associated problems.

Effect of clean indoor air laws on smokers: the clean air module of the SimSmoke computer simulation model

OBJECTIVES To develop a simulation model to examine the effects of clean indoor air laws on prevalence rates and smoking attributable deaths. METHODS Based on empirical and theoretical research, the effects of clean air laws are modelled by type of law. The model considers clean air laws at the state levels between 1993 and 2000, and projects the number of smokers and smoking attributable deaths in the USA under different scenarios from 2000 onward. RESULTS The model predicts that comprehensive clean air laws have the potential to reduce substantially the number of smokers and smoking attributable deaths, and these effects are predicted to grow over time. The predicted impact of new worksite laws are reduced when previously implemented private and public worksite restrictions are taken into account. CONCLUSIONS Clean indoor air laws have the ability to reduce smoking rates substantially and save lives, but their impact is likely to depend on their comprehensiveness and prior private worksite restrictions in place.

A simulation model of policies directed at treating tobacco use and dependence.

Objectives . The authors develop a simulation model to predict the effects on quit rates and cost-effectiveness of different smoking treatment policies. Methods . A decision theoretic model of quit behavior is first developed that incorporates the decision to quit and the choice of treatment. A policy model then examines the effect on quit attempts and quit rates of policies to cover the costs of different combinations of treatments and to require health care providers to conduct brief interventions. The model incorporates substitution between treatments and effects of policies on treatment effectiveness. The cost per quit is also calculated for each policy. Results . The model of quit behavior predicts a 1-year quit rate of 4.5% for the population of smokers. The policy model predicts a 37% increase in quit rates from a policy that combines mandated brief interventions with coverage of all proven tobacco treatments. Smaller effects are predicted from policies that provide more restricted coverage of treatments, especially those limited to behavioral treatment. Payments for brief interventions alone increase quit rates by about 7%. Brief intervention and behavioral therapy policies had lower costs per quit but yield substantially fewer additional quits than policies that cover pharmacotherapy. There is, however, considerable variation around these estimates depending on assumptions about the effects of policy on treatment use, substitution between treatments, and treatment effectiveness. Conclusion . Tobacco treatment policies, especially those with broad and flexible coverage, have the potential to substantially increase smoking quit rates. However, further research is needed on the effect of payment policies on the use and effectiveness of tobacco treatments.

A Simulation Model of Tobacco Youth Access Policies

Empirical studies have found that policies aimed at reducing youth access to tobacco have been successful at increasing retail compliance, but their effects on actual tobacco use are mixed. This article presents a model of youth access policies that helps explain the apparently conflicting results in the extant literature, provides a framework for future empirical studies, and suggests implications for public policy. Our model highlights the interaction of components in a well-designed policy, including sufficient compliance checks, penalties, and community involvement. It also illustrates why it will be difficult to eliminate all of youth supply. Nonretail sources, such as borrowing or stealing from parents and siblings and purchasing from older peers through black markets, are an important component of youth supply and become more important as retail access is reduced. The analysis is limited to policies that affect the retail supply of cigarettes but suggests the need for other policies that affect the demand for cigarettes, such as taxes and cessation policies, in order to further reduce youth smoking rates.

Smoking treatment interventions and policies to promote their use : a critical review

Despite evidence regarding the effectiveness and cost-effectiveness of smoking cessation treatments, the involvement of health care workers in providing advice and the use of treatment is limited. Barriers to treatment access have been suggested as part of the reason physicians do not routinely provide brief interventions and smokers do not use proven cessation methods. The purpose of this paper is to review tobacco treatments and policy research, and highlight where more research is warranted to develop more effective policies at the private and public levels. Special attention is devoted to the recently released Guidelines (Fiore et al., Treating Tobacco Use and Dependence. Clinical Practice Guideline. Rockville, MD: USDHHS, 2000). We also consider the policy issues faced by private and public insurers, such as cost-effectiveness, the different forms that policies could take, and potential problems in implementing those policies. The efficacy of brief interventions and cessation treatments has been well studied. Less understood, however, is their impact in population-based investigations. In particular, more information is needed on the prevalence of their use and on how treatment use depends on prior smoking, treatment history, and demographic subgroup. Public and private health policies designed to increase access to cessation treatments and information dissemination through brief interventions by health care providers also have the potential to increase cessation. Further research on the impact of these interventions on use and quit rates, particularly over longer periods of time, and how these effects depend on the form of the intervention, is warranted.