Publications by authors named "Shiffman S"

In this article, the authors examine daily temporal patterns of smoking in relation to environmental restrictions on smoking and cessation outcomes. Time-series methods were used for analyzing cycles in 351 smokers who monitored their smoking in real time for 2 weeks. The waking day was divided into 8 "bins" of approximately 2 hr, cigarette counts were tallied for each bin, and temporal patterns of smoking and restriction were analyzed.

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Aims: This study evaluated the impact of exposure to information about a novel cigarette claiming to reduce exposure to tobacco toxins ('potential reduced exposure product' cigarette or PREP-C) on smokers' and ex-smokers' perceptions of PREP-C, on quit interest among smokers and on interest in resuming smoking among ex-smokers.

Design And Participants: A random digit-dialed telephone survey was conducted in the United Kingdom with 500 current smokers and 106 ex-smokers who had quit within the last 2 years.

Intervention: The interviewer described a novel cigarette that claimed to significantly reduce exposure to smoke toxins.

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The Nicotine Dependence Syndrome Scale (NDSS) is a new multidimensional measure of nicotine dependence. The study aim was to examine the structure and heritability of the NDSS and its associations with nicotine dependence defined by FTND and DSM-IV criteria among Finnish smokers participating in an ongoing twin-family study. Adult twin pairs concordant for smoking from the Finnish Twin Cohort Study, and their siblings and parents were interviewed.

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Aims: To examine the natural history of nicotine withdrawal and individual differences associated with withdrawal duration and severity.

Design And Setting: Prospective study of withdrawal symptoms among smokers who quit for at least 24 hours. Participants used Ecological Momentary Assessment to monitor symptoms in their natural environment using an Electronic Diary (ED).

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Nicotine replacement therapy (NRT) repeatedly has been shown to improve smoking treatment outcome. The major mechanism posited for this improvement in outcome is that NRT reduces nicotine craving and withdrawal. The authors tested this hypothesized mechanism of action using real-time data on craving and withdrawal, collected by ecological momentary assessments administered on a palm-top computer.

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Background: The present study compared the predictive and incremental validity of four commonly used dependence measures (Diagnostic and Statistical Manual-IV [DSM-IV] nicotine dependence criteria, Fagerstrom Test for Nicotine Dependence [FTND], Hooked On Nicotine Checklist [HONC], Nicotine Dependence Syndrome Scale [NDSS]) in a first year college sample reporting light smoking patterns.

Methods: Nicotine dependence measures were administered at the end of the first semester and follow-up smoking behavior (i.e.

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Population surveys have observed decreases in cigarette use over time among smokers. These decreases have probably been influenced by tobacco control measures implemented over the past several decades, but few data exist on whether smokers have also reduced their nicotine intake. The authors examined data from two cross-sectional National Health and Nutrition Examination Surveys (NHANES), conducted in 1988-1994 and 1999-2002.

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Aims: Nicotine patches and gum are now available without a prescription in many countries. Some have expressed concern that allowing access to these medications without a prescription may deprive smokers of the instruction and support they would otherwise have received from their physician. We assessed the value of physician involvement in NRT prescription.

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The authors used ecological momentary assessment to contrast smoking patterns among chippers (CHs; n = 26)--smokers who smoke despite an apparent absence of tobacco dependence--with those seen in heavy smokers (HSs; n = 28). Smoking and nonsmoking settings (activity, mood, etc.) were assessed by means of electronic diary.

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Objectives: A large proportion of smokers erroneously believe that low-nicotine/low-tar cigarettes, also called "light cigarettes" or "lights," reduce health risks and are a rational alternative to smoking cessation. However, the availability of light cigarettes may deter smoking cessation.

Methods: We analyzed the 32374 responses to the US 2000 National Health Interview Survey.

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Objective: To examine time trends in amount of media coverage on tobacco cessation versus weight loss and test whether the 2 topics compete for limited media attention.

Methods: Monthly print and broadcast media coverage from 1995 to 2003 was estimated.

Results: Tobacco and weight coverage were uncorrelated.

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Tests of addiction treatments seldom reveal where treatment exercises its effect (i.e., promoting initial abstinence, preventing lapses, and/or impeding progression from lapse to relapse).

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The authors examined the utility of ecological momentary assessment for assessing spousal interactions in the natural environment among 245 healthy, married, older adults. Convergent validity for this method was demonstrated by (a) a positive association between marital adjustment (MA) and average diary ratings of agreeableness during spousal interactions and (b) an inverse association between MA and average diary ratings of conflict during spousal interactions. When agreeableness and conflict were examined simultaneously for spousal interactions, only agreeableness independently predicted MA.

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This paper presents personal reflections on the history, current status and the future of research on smoking relapse. Relapse was traditionally viewed primarily as an outcome, to be reduced with increased treatment. In the 1980s, relapse research was invigorated by a focus on the process of relapse, focusing on the specific situations in which lapses to smoking occurred, and on the processes that mediated progression from a lapse to a relapse.

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According to social learning models of drug relapse, decreases in abstinence self-efficacy (ASE) and increases in positive smoking outcome expectancies (POEs) should foreshadow lapses and relapse. In this study, the authors examined this hypothesis by using ecological momentary assessment data from 305 smokers who achieved initial abstinence from smoking and monitored their smoking and their ASE and POEs by using palmtop computers. Daily ASE and POEs predicted the occurrence of a 1st lapse on the following day.

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Little is known about the situations that are associated with changes in self-efficacy during an attempt to quit smoking. In this study, 214 smokers used palmtop computers to record momentary self-efficacy ratings and situational context during a quit attempt. Higher urge to smoke and negative affect were associated with reduced self-efficacy.

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Objective: We employed Ecological Momentary Assessment (EMA) real-time recording in the natural setting to determine whether spousal interaction frequency predicts 3-year progression of carotid artery intima medial thickening (IMT).

Methods: Participants were 250 healthy, older adults (M age = 61, 48% female) who, at baseline, underwent 6 days of ambulatory monitoring using electronic diaries to collect data on mood, activity, and posture, as well as current or recent (past 10 minutes) social interactions. Participants also underwent ultrasound imaging of the carotid arteries at baseline and 3-year follow-up.

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Over the past 20 years, medicinal nicotine has been used to aid smoking cessation, and has led to a significant increase in the number of smokers who successfully quit. This review describes currently available medicinal nicotine products, which include nicotine patch, gum, lozenge, nasal spray, inhaler and sublingual tablet, including their pharmacokinetics and recommended dosing. New developments in nicotine delivery that could further increase cessation rates include high-dose patches, rapid release gum, combined patch and acute forms, and several novel channels for nicotine delivery, such as nicotine drink, straw, lollipop and a pulmonary inhaler.

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Objective And Rationale: Smoking lapses represent an important juncture between smoking cessation and relapse. Nicotine replacement therapy (NRT) has been shown to decrease the risk of progression from lapse to relapse. We hypothesized that this effect might be mediated via decreases in reinforcement from smoking lapses.

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Aims: Most relapse episodes occur when smokers are confronted with craving provoked by situational cues. Current nicotine gum can help relieve cue-provoked cravings, but faster effects may result in more rapid relief. We tested a prototype formulation of a new rapid-release nicotine gum (RRNG) that provides more rapid release and absorption of nicotine, for its ability to provide faster and better craving relief compared to current nicotine polacrilex gum (NPG).

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We describe an ecological momentary assessment (EMA) protocol designed to measure daily life experiences along several psychosocial dimensions (Social Conflict, Task Demand, Decisional Control, Negative Affect, and Arousal) hypothesized to be relevant for cardiovascular disease risk. In a large community sample, these assessments have been administered in conjunction with ambulatory blood pressure (ABP) monitoring and measures of subclinical cardiovascular disease. Several results have emerged that support the promise of this approach.

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This article describes a program of research applying Ecological Momentary Assessment (EMA) methods to study relapse to cigarette smoking, with a particular focus on the role of negative affect (NA) and self-efficacy (SE). Day-to-day changes in mood and stress did not predict lapse risk, but more proximal changes in affect were associated with lapses: Many lapses were marked by intense NA and by NA increases in the preceding hours. Individual differences in baseline SE predicted lapse risk, but daily SE was relatively stable during abstinence and did not influence lapse risk.

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