Changes in the profiles of smokers seeking cessation treatment and in its effectiveness in Galicia (Spain) 2001-10

A Randomized Clinical Trial to Assess the Efficacy of a Psychological Treatment to Quit Smoking Assisted with an App: Study Protocol

Numerous studies have shown the efficacy of smoking cessation interventions. However, some challenges, such as relapse rates, remain. The availability of information technologies (ICTs) offers promising opportunities to address such challenges. The aim of this paper is to describe the protocol followed to assess the efficacy of a face-to-face cognitive-behavioral intervention for smoking cessation using a smartphone application as a complement, compared with a control group. A single blind, two-arm, randomized controlled trial is proposed (NCT04765813). The participants will be smokers over 18 years old, who smoke at least eight cigarettes per day. Participants will be randomized to one of two conditions, using a 1:1 allocation ratio: (1) cognitive-behavioral smoking cessation treatment along with an App with active therapeutic components (SinHumo App); or (2) cognitive-behavioral treatment along with the use of a control App (without active components). The experimental App will be used during the eight treatment sessions and for 12 months after the end of treatment. The primary outcome measures will be 7-days point-prevalence abstinence at 12-months follow-up. We expect the experimental App to obtain higher abstinence rates at the end of treatment and at one-year post-treatment follow-ups and lower relapse rates, compared to the control App.

Characteristics of patients seeking outpatient smoking cessation treatment before and after the implementation of a smoke-free law in Valencia (Spain): a cross-sectional study

OBJECTIVE

Explore potential changes in the characteristics of patients requesting smoking cessation treatment at an outpatient setting in Spain before and after Law 42/2010 was enacted.

DESIGN

This is a cross-sectional study with convenience sampling. The information was obtained from the medical records of patients receiving smoking cessation treatment from January 2008 to December 2014.

SETTING

Hospital Clinico Universitario de Valencia.

PARTICIPANTS

423 patients who sought smoking cessation treatment 36 months before or 48 months after the enactment of the law.

RESULTS

After the enactment of a comprehensive smoke-free law in Spain, the patients seeking smoking cessation treatment were older (p=0.003), had lower values of exhaled CO (p<0.0001), lower number of previous attempts to quit (p=0.027) and more history of medical problems related to smoking (p=0.002).

CONCLUSION

Our findings support the idea that society-nation level interventions could have an impact at the individual level, reflected by the change of patients' characteristics. It seems that the Law 42/2010 mobilised certain group of patients to seek treatment.

Cognitive-behavioral treatment with behavioral activation for smoking cessation: Randomized controlled trial

INTRODUCTION

Behavioral Activation is a behavioral-based treatment that has been proposed as suitable for smoking cessation, as it simultaneously addresses reinforcement-related variables and also mood management. The aim of this study was to compare the effects of a cognitive-behavioral smoking cessation treatment with components of behavioral activation (SCBSCT-BA) with a standard cognitive-behavioral treatment (SCBSCT), and a wait-list control group (WL).

METHOD

The sample was comprised of 275 adults smokers (61.4% females, mean age = 45.36, SD = 10.96). After baseline assessment sessions, participants were randomized (ratio: 2.2.1.) to SCBSCT-BA, SCBSCT, or WL. Active groups received 8 weekly 1-hour face-to-face group sessions. Biochemically verified smoking abstinence and depressive symptoms were assessed at the end of treatment, and at 3-, 6-, and 12-month follow-ups.

RESULTS

Significant treatment effects in 7-dayspoint prevalence abstinence rates were found for both active groups at the end of treatment. Abstinence rates at 12-months follow-up were 30% for SCBSCT-BA, and 18% for SCBSCT. Using Multiple Imputation for missing data, regression analysis showed significantly greater ORs for the SCBSCT-BA condition (vs. SCBSCT) at the end of treatment and at 3-months follow-up. At 6-, and 12-months follow-ups, ORs for the SCBSCT-BA condition, although greater, did not reach statistical significance. Multilevel analysis showed that abstinence was related to reductions in depressive symptoms.

CONCLUSIONS

SCBSCT-BA obtained positive results at short and medium term. Participants who quit smoking experienced a significant reduction in depressive symptoms. Findings support the benefit of adding BA to a cognitive-behavioral smoking cessation treatment.

TRIAL REGISTRATION

www.clinicaltrials.gov NCT02844595.

Gender and Time-Related Differences in a Large Cohort of Heavy Smokers Applying for Treatment to a Tobacco Centre in Italy

Introduction: Attempts to quit smoking have increased in recent years, but the patterns of variations over time are unknown. We aimed at describing time- and sex-related changes in a population of 2,231 subjects who adhered to a smoking-cessation programme lasting 13 years in Italy.

Methods: We measured baseline expired carbon monoxide (expired-CO), Fagerstrom nicotine dependence, Q-MAT test, Zung depression and anxiety scale, Hospital anxiety and depression scale (HADS).

Results: Study population included 1,278 men and 953 women who smoked a median of 25 (interquartile range, IQR: 20–32) and 20 (IQR: 20–30) cigarettes/day, respectively (p < 0.001). The proportion of female smokers increased from 37.5% in 2001–2003 to 46.9% in 2010–2013 (p = 0.003). There was a significant time-related reduction of median daily cigarette consumption, with a more noticeable decrease in men. Median expired-CO (parts per million (ppm)) increased only in women, from 18 (IQR: 14–23) in 2001–03 to 20 (IQR: 14–28) in 2010–13 (p = 0.001), whereas Fagerstrom test for nicotine dependence did not vary. Differences in psychological characteristics in the last 3 years showed that women were more clinically depressed than men (16.6% versus 7.6%, p < 0.001).

Conclusions: Despite a decrease in the number of daily cigarettes with time, expired-CO tends to increase in women, who are also more clinically depressed and anxious than men. A personalised approach to specific subgroups of smokers, with special emphasis on a psychological support for women, seems appropriate.

Validity evidence of the Behavioral Activation for Depression Scale-Short Form among depressed smokers

A measure of Behavioral Activation (BA) is highly recommended when evaluating BA treatment effects for smokers with depression. Recently, a short version of the Behavioral Activation for Depression scale (BADS-SF) has been developed as a means of assessing changes in activation and avoidance patterns. To date there is no validated version of this questionnaire in Spanish. This study sought to adapt the BADS-SF to a Spanish population of depressed smokers. Method A sample of 169 smokers (72.2% female) with elevated depressive symptomatology completed the BADS-SF. Results A bi-factorial structure was obtained: Activation and Avoidance. Results indicated an acceptable internal consistency for both the Activation (ω = .85) and the Avoidance subscales (ω =.70). Overall, convergent validity was obtained with Activation and Avoidance subscales being related to other depression-related measures such as depressive symptomatology (Activation r = -.29; Avoidance r = .35), environmental reward (Activation r = .40; Avoidance r = -.41) and, nicotine dependence (Avoidance r = .23). This latter variable was the only one not showing a statistically significant association with the Activation factor (r = -.12). Conclusions The Spanish BADS-SF can be considered as a reliable and valid instrument when assessing behavioral activation among clinically depressed smokers.

Types of Smokers Who Seek Smoking Cessation Treatment According to Psychopathology

Psychopathology and psychological distress have been shown to be related to poor smoking cessation outcomes and abstinence maintenance. Thus, it is important to identify individuals with high levels of psychopathology before undergoing smoking cessation treatment in order to increase their likelihood of success.

OBJECTIVE

The primary aim of the present study was to analyze whether we could classify smokers by using self-reported measures of psychopathology. In addition, a secondary aim was to examine if there were significant differences among the groups of smokers regarding sociodemographic information, nicotine dependence, and cessation rates at the end of treatment and at 6- and 12-month follow-ups.

METHODS

Participants were 281 smokers seeking smoking cessation treatment. Participants were classified into different smoking groups by using a 2-step cluster analysis based on baseline scores on the Restructured Clinical (RC) scales of the Minnesota Multiphasic Personality Inventory-2 Restructured Form (MMPI-2-RF), Beck Depression Inventory-II (BDI-II), and State-Trait Anxiety Inventory (STAI).

RESULTS

Smokers were classified into 3 groups according to levels of psychopathology: Low (n = 158), Intermediate (n = 78), and High (n = 45). Smokers in the High Group were more likely to present higher levels of psychopathology and to continue smoking at the end of treatment when compared with the two other clusters. In addition, smokers classified in this group were more likely to be nicotine dependent and from a low social class.

CONCLUSIONS

A subgroup of smokers can be easily identified through self-report measures of psychopathology. Furthermore, these individuals were more likely to continue smoking at the end of treatment. This suggests that this group with high levels of psychopathology might benefit from future interventions that are more intensive or cessation treatments targeted to their specific characteristics.

The Interaction of Depressive Symptoms and Hazardous Drinking in Relation to Tobacco Craving Among Treatment Seeking Depressed Smokers: Sex Differences

OBJECTIVES

The present study sought to address whether there is sex effect in the interactive effect between depressive symptoms and hazardous drinking in the prediction of smoking craving after cognitive-behavioral smoking cessation treatment among those with at least mild depression.

METHODS

Participants (n = 114, mean age 42.0, SD = 9.73, 64% women) were treatment-seeking smokers who attended 6 weekly 1-hour sessions involving psychological treatment for cessation. Participants reported depressive symptoms and alcohol use at baseline and reported craving at baseline and after treatment.

RESULTS

Results indicated that there was a statistically significant 3-way interaction (depression by alcohol use by sex) for smoking craving (B = -0.30, standard error [SE] = 0.14, P = 0.042) and appetitive craving (B = -.21, SE = 0.09, P = 0.031), but not negative reinforcement craving. The form of the significant interactions indicted that higher levels of depressive symptoms and alcohol use were related to greater levels of craving at the end of treatment only among men.

CONCLUSIONS

The current findings provide novel empirical evidence suggesting that there is a clinically relevant interplay between depressive symptoms and alcohol use regarding general craving and appetitive craving among male treatment-seeking smokers. Although the present results should be replicated in larger samples, this type of research can inform the development of sex-specific interventions for smoking cessation.

Cognitive-behavioral treatment with behavioral activation for smokers with depressive symptomatology: study protocol of a randomized controlled trial

BACKGROUND

Smoking is an important risk factor for mental health-related problems. Numerous studies have supported a bi-directional association between cigarette smoking and depression. Despite the advances in understanding the comorbidity between both problems, the most effective psychological treatment that simultaneously targets smoking and depressive symptomatology remains unclear. The objective of this study is to assess the effectiveness of a cognitive-behavioral intervention for smoking cessation with components of behavioral activation for managing depressed mood.

METHOD

A single blind, three-arm, superiority randomized controlled trial is proposed. Participants will be smokers over 18 years old, who smoke at least 8 cigarettes per day. Participants will be randomized to one of three conditions, using a 2:2:1 allocation ratio: 1) standard cognitive-behavioral smoking cessation treatment; 2) standard cognitive-behavioral smoking cessation treatment plus behavioral activation; or 3) a three-month delayed treatment control group. The primary outcome measures will be biochemically verified point-prevalence abstinence (carbon monoxide in expired air) and significant change from baseline in depressive symptoms to the end of treatment, and at the 3-, 6-, and 12-month follow-up.

DISCUSSION

This study aims to assess the efficacy of a cognitive-behavioral intervention with behavioral activation components for smoking cessation and depressive symptoms, compared to a standard cognitive-behavioral intervention to quit smoking. As the relation between depressive symptoms, even at subclinical levels, and quitting smoking difficulties is well known, we expect that such intervention will allow obtaining higher abstinence rates, lower relapse rates, and mood improvement.

TRIAL REGISTRATION

ClinicalTrials.gov : NCT02844595 . Retrospectively registered 19th July, 2016. The study started in January 2016, and the recruitment is ongoing.

Delay discounting in e-cigarette users, current and former smokers

Background/Objective: Despite the fact that electronic cigarettes, or e-cigarettes, are being increasingly used as an alternative to smoking tobacco cigarettes, few studies have explored psychological factors associated with e-cigarette use. Prior studies aimed at exploring correlates of e-cigarette use have focused on sociodemographic and smoking-related characteristics. However, no previous work has examined psychological features such as impulsivity among e-cigarettes users. The main objective of this study was to compare impulsivity rates across four groups of participants: current e-cigarette users who were former smokers; current smokers; former smokers; and controls. Method: A sample of 136 participants completed a computerized delay discounting task for hypothetical monetary values. Results: Delay discounting was greater among e-cigarette users than former smokers. E-cigarette users also showed an intermediate discounting that did not differ from smokers and controls. Moreover, delay discounting was significantly greater among current smokers compared to former smokers and controls. Conclusions: Taken together, our results extend previous research on delay discounting by providing evidence on impulsivity levels among current e-cigarette users for the first time.