Anxiety sensitivity and PTSD symptom severity are reciprocally related: evidence from a longitudinal study of physical trauma survivors

Differential associations between components of anxiety sensitivity and smoking-related characteristics

INTRODUCTION

Anxiety sensitivity (AS)-the tendency to fear anxiety-related experiences-is a risk factor for anxiety disorders and may contribute to smoking motivation and maintenance. Few studies have examined the relations between conceptually distinct components of AS and smoking behavior. The purpose of the current study was to examine the associations between AS components-physical concerns, mental concerns, and social concerns-and an array of smoking-related characteristics.

METHODS

In a cross-sectional design, we administered the Anxiety Sensitivity Index (ASI) and self-report measures of tobacco dependence, smoking abstinence behavior, and smoking outcome and abstinence expectancies to 314 smokers (≥ 10 cigarettes/day, 32% female, M age=44 years).

RESULTS

The ASI Mental Concerns subscale was most clearly associated with greater difficulty maintaining abstinence and stronger expectations of smoking-related negative reinforcement and withdrawal (βs=.21-.31, ps ≤ .005); the ASI Social Concerns was most clearly associated with stronger positive reinforcement smoking expectancies (β=.20, p=.0009); and ASI Physical Concerns subscale was most clearly associated with stronger tobacco withdrawal symptoms experienced in prior quit attempts (β=.20, p=.002).

CONCLUSIONS

Based on these findings of patterns of associations with smoking-related characteristics across distinct components of AS, we speculate that (1) mindfulness training may be useful for treating tobacco addiction in smokers high in AS mental concerns, and (2) smokers high in AS physical and social concerns may benefit from smoking cessation treatment that incorporates interoceptive exposure and cognitive-behavioral therapy for social anxiety, respectively.

Anxiety Sensitivity: An Examination of the Relationship With Authoritarian, Authoritative, and Permissive Parental Styles

A substantial literature has investigated the role of parenting on a child’s development. Several classifications of parenting styles (i.e., permissive, authoritarian, authoritative) have been linked to a wide range of negative outcomes such as mood and anxiety problems; however, their respective associations to anxiety sensitivity (AS) remain unclear. Using a nonclinical sample of young adults (N = 227), this study is the first to empirically investigate whether parenting styles were differentially associated with AS, controlling for general depression and anxiety symptoms. Hierarchical linear regression analyses showed that authoritarian and permissive styles were associated with elevated AS. Permissive parenting was associated with the AS physical subfactor, whereas authoritarian parenting was associated with the AS social subfactor. Moreover, AS was found to mediate the relationship between specific parental styles and anxiety symptoms as well as depressive symptoms. Findings suggest that AS may mediate the relationship between parenting styles and negative psychological outcomes.

Anxiety, depression, and cigarette smoking: a transdiagnostic vulnerability framework to understanding emotion-smoking comorbidity

Research into the comorbidity between emotional psychopathology and cigarette smoking has often focused upon anxiety and depression's manifest symptoms and syndromes, with limited theoretical and clinical advancement. This article presents a novel framework to understanding emotion-smoking comorbidity. We propose that transdiagnostic emotional vulnerabilities-core biobehavioral traits reflecting maladaptive responses to emotional states that underpin multiple types of emotional psychopathology-link various anxiety and depressive psychopathologies to smoking. This framework is applied in a review and synthesis of the empirical literature on 3 transdiagnostic emotional vulnerabilities implicated in smoking: (a) anhedonia (Anh; diminished pleasure/interest in response to rewards), (b) anxiety sensitivity (AS; fear of anxiety-related sensations), and (c) distress tolerance (DT; ability to withstand distressing states). We conclude that Anh, AS, and DT collectively (a) underpin multiple emotional psychopathologies, (b) amplify smoking's anticipated and actual affect-enhancing properties and other mechanisms underlying smoking, (c) promote progression across the smoking trajectory (i.e., initiation, escalation/progression, maintenance, cessation/relapse), and (d) are promising targets for smoking intervention. After existing gaps are identified, an integrative model of transdiagnostic processes linking emotional psychopathology to smoking is proposed. The model's key premise is that Anh amplifies smoking's anticipated and actual pleasure-enhancing effects, AS amplifies smoking's anxiolytic effects, and poor DT amplifies smoking's distress terminating effects. Collectively, these processes augment the reinforcing properties of smoking for individuals with emotional psychopathology to heighten risk of smoking initiation, progression, maintenance, cessation avoidance, and relapse. We conclude by drawing clinical and scientific implications from this framework that may generalize to other comorbidities.

Anxiety sensitivity as a mediator of the association between asthma and smoking

OBJECTIVE

Despite its negative effects, smoking is more common among individuals with asthma compared to those without. Anxiety sensitivity (fear of arousal-related sensations) is associated with both smoking and asthma; however, no research, to date, has examined the interplay between these three factors. Thus, the purpose of the current study was to evaluate the mediating role of anxiety sensitivity in the association between asthma diagnosis and smoking status.

METHODS

The current study was a secondary analysis of data from three existing datasets of non-smokers and smokers with and without asthma (n = 433; 56.3% female, M(age) = 34.01 years, SD = 13.9). Participants provided information on their asthma diagnosis status and smoking status and completed self-report measures.

RESULTS

As hypothesized, after controlling for gender, race and age, there was a significant indirect effect of asthma diagnosis on smoking status through anxiety sensitivity (95% CI = 0.07-0.48).

CONCLUSIONS

These results indicate that the association between asthma diagnosis and smoking status appears to be driven, in part, by anxiety sensitivity and suggest that anxiety sensitivity may serve as an important target for prevention and intervention efforts for smokers with asthma.

The role of anxiety sensitivity in the relation between trait worry and smoking behavior

INTRODUCTION

Smoking and anxiety disorders frequently co-occur. Trait worry is a core symptom of anxiety disorders. While research suggests worry processes may be important to certain smoking behaviors, the mechanisms explicating these relations remain unknown.

METHOD

The current study examined anxiety sensitivity (AS) as a potential mediator for the relation between trait worry and number of years being a daily smoker, latency to first cigarette of the day, smoking rate, heaviness of smoking, and nicotine dependence among treatment-seeking daily smokers (N = 376; 47% female; M age = 37.76, SD = 13.46).

RESULTS

Consistent with prediction, AS significantly mediated the relations between trait worry and the studied smoking variables.

CONCLUSION

The present findings suggest it may be useful to clinically address AS among worry-prone, treatment-seeking daily smokers in order to address smoking behavior.

Anxiety sensitivity as an amplifier of subjective and behavioral tobacco abstinence effects

BACKGROUND

Anxiety sensitivity, a transdiagnostic cognitive vulnerability factor described as an amplifier of negative emotional states, is implicated in the maintenance of cigarette smoking and cessation difficulties. The current study aimed to examine the role of anxiety sensitivity in predicting abstinence-induced changes in nicotine withdrawal, smoking urges and smoking behavior during an experimental relapse analogue task (RAT).

METHOD

Participants were 258 non-treatment seeking smokers (M [SD] age=44.0 [10.73]; 69.8% male). Participants attended two counterbalanced experimental sessions including smoking deprivation (16 h of smoking abstinence) and smoking as usual. The Minnesota Nicotine Withdrawal Scale (MNWS) and Brief Questionnaire of Smoking Urges (QSU) were completed at each session in addition to the RAT. Hierarchical regressions were conducted to examine the predictive impact of anxiety sensitivity on withdrawal and urges during smoking deprivation. Follow-up mediational analyses were conducted to examine whether abstinence-induced withdrawal and urges mediated responding during the RAT.

RESULTS

Anxiety sensitivity amplified the effects of experimentally manipulated acute abstinence on subjective nicotine withdrawal symptoms and smoking urges. Additionally, higher levels of anxiety sensitivity indirectly predicted shorter latency to smoking initiation after deprivation during the RAT through the effects of greater abstinence-induced nicotine withdrawal and smoking urges. Anxiety sensitivity was unrelated to increased smoking during the RAT, although this may be partially attributed to the type of laboratory assessment employed.

CONCLUSIONS

Elevated anxiety sensitivity appears to impact initiation of smoking after nicotine deprivation through the effects of abstinence-induced withdrawal and smoking urges.

Medical information seeking: impact on risk for anxiety psychopathology

BACKGROUND AND OBJECTIVES

Increased utilization of online medical information seeking demands investigation of potentially detrimental effects of these activities. The present study investigated whether viewing medical websites may adversely affect anxiety sensitivity (AS), a well-established risk factor for the development of psychopathology.

METHODS

Participants (N = 52) were randomly assigned to view medical symptom related websites or general health and wellness control websites. AS was measured before and after the website viewing.

RESULTS

Individuals in the medical website group reported higher AS compared to the control group at post-manipulation after controlling for baseline health anxiety and baseline AS. Additionally, intolerance of uncertainty (IU), an individual difference variable assessing negative beliefs about uncertainty, significantly moderated this effect such that medical website viewing only affected AS in participants with high IU but not in participants with low IU.

LIMITATIONS

The limitations of the current study include the lack of individualization of the website viewing and the short duration of the website viewing.

CONCLUSIONS

The results of this study provide initial evidence that exposure to online medical information could increase risk for anxiety psychopathology in individuals with elevated IU. Additionally, these results provide support for a learning based model of the etiology of AS.

Anxiety sensitivity mediates relations between emotional disorders and smoking

Research has documented consistent and robust relations between emotional disorders (i.e., depressive and anxiety disorders) and smoking. Yet, it is presently unclear whether anxiety sensitivity--the fear of aversive internal anxiety states--accounts for the relations between emotional disorders and various smoking processes, including nicotine dependence, perceived barriers to smoking cessation, and severity of problematic symptoms during past cessation attempts. Participants (N = 465) were treatment-seeking daily tobacco smokers recruited as part of a larger tobacco-cessation study. Baseline (pretreatment) data were utilized. Emotional disorders were assessed via clinical diagnostic interview; self-report measures were used to assess anxiety sensitivity and 3 criterion variables: nicotine dependence, barriers to smoking cessation, and severity of problematic symptoms while quitting in past attempts. Emotional disorders were predictive of higher levels of nicotine dependence, greater perceived barriers to cessation, and greater severity of problematic symptoms while attempting to quit in the past; each of these relations were accounted for by the indirect effect of anxiety sensitivity. The present findings suggest that anxiety sensitivity may be an important transdiagnostic construct in explicating the nature of the relations between emotional disorders and various smoking processes.

The role of smoking inflexibility/avoidance in the relation between anxiety sensitivity and tobacco use and beliefs among treatment-seeking smokers

Recent scholarly attention has focused on explicating the nature of tobacco use among anxiety-vulnerable smokers. Anxiety sensitivity (fear of aversive internal anxiety states) is a cognitive-affective individual difference factor related to the development and maintenance of anxiety symptoms and disorders and various smoking processes. The present study examined the cross-sectional associations between anxiety sensitivity and a range of cognitive and behavioral smoking processes, and the mediating role of the tendency to respond inflexibly and with avoidance in the presence of smoking-related distress (i.e., avoidance and inflexibility to smoking [AIS]) in such relations. Participants (n = 466) were treatment-seeking daily tobacco smokers recruited as part of a larger tobacco cessation study. Baseline (pretreatment) data were utilized. Self-report measures were used to assess anxiety sensitivity, AIS, and 4 criterion variables: barriers to smoking cessation, quit attempt history, severity of problematic symptoms reported in past quit attempts, and mood-management smoking expectancies. Results indicated that anxiety sensitivity was indirectly related to greater barriers to cessation, greater number of prior quit attempts and greater mood-management smoking expectancies through the tendency to respond inflexibly/avoid to the presence of distressing smoking-related thoughts, feelings, and internal sensations; but not severity of problems experienced while quitting. The present findings suggest AIS may be an explanatory mechanism between anxiety sensitivity and certain smoking processes.

Mediators and moderators of functional impairment in adults with obsessive-compulsive disorder

The current study examined correlates, moderators, and mediators of functional impairment in 98 treatment-seeking adults with obsessive-compulsive disorder (OCD). Participants completed or were administered measures assessing obsessive-compulsive symptom severity, functional impairment, resistance against symptoms, interference due to obsessive-compulsive symptoms, depressive symptoms, insight, and anxiety sensitivity. Results indicated that all factors, except insight into symptoms, were significantly correlated with functional impairment. The relationship between obsessive-compulsive symptom severity and functional impairment was not moderated by patient insight, resistance against obsessive-compulsive symptoms, or anxiety sensitivity. Mediational analyses indicated that obsessive-compulsive symptom severity mediated the relationship between anxiety sensitivity and obsessive-compulsive related impairment. Indeed, anxiety sensitivity may play an important contributory role in exacerbating impairment through increases in obsessive-compulsive symptom severity. Depressive symptoms mediated the relationship between obsessive-compulsive symptom severity and obsessive-compulsive related impairment. Implications for assessment and treatment are discussed.

Anxiety Sensitivity Index (ASI-3) subscales predict unique variance in anxiety and depressive symptoms

Anxiety sensitivity (AS) has been implicated in the development and maintenance of a range of mental health problems. The development of the Anxiety Sensitivity Index - 3, a psychometrically sound index of AS, has provided the opportunity to better understand how the lower-order factors of AS - physical, psychological, and social concerns - are associated with unique forms of psychopathology. The present study investigated these associations among 85 treatment-seeking adults with high AS. Participants completed measures of AS, anxiety, and depression. Multiple regression analyses controlling for other emotional disorder symptoms revealed unique associations between AS subscales and certain types of psychopathology. Only physical concerns predicted unique variance in panic, only cognitive concerns predicted unique variance in depressive symptoms, and social anxiety was predicted by only social concerns. Findings emphasize the importance of considering the multidimensional nature of AS in understanding its role in anxiety and depression and their treatment.

An examination of the structural link between post-traumatic stress symptoms and chronic pain in the framework of fear-avoidance models

BACKGROUND

The tendency to respond with fear and avoidance can be seen as a shared vulnerability contributing to the development of post-traumatic stress disorder (PTSD) and chronic pain. Although several studies have examined which specific symptoms of PTSD (re-experiencing, avoidance, emotional numbing and hyperarousal) are associated with chronic pain, none has considered this association within the framework of fear-avoidance models.

METHODS

Seven hundred fourteen patients with chronic musculoskeletal pain were assessed. Of these, 149 patients were selected for the study based upon the following inclusion criteria: exposure to a traumatic event before the onset of pain (with scores equal to or higher than 8 points on the fear and hopelessness scales of the Stressful Life Event Screening Questionnaire Revised) and scores equal to or higher than 30 on the Davidson Trauma Scale.

RESULTS

Structural equation modelling was used to test the association between PTSD symptoms and pain outcomes (pain intensity and disability) using the mediating variables considered in the fear-avoidance models. The results show that emotional numbing and hyperarousal symptoms, but neither re-experiencing nor avoidance, affected pain outcome via anxiety sensitivity (AS), catastrophizing and fear of pain. PTSD symptoms increased the levels of AS, which predisposes to catastrophizing and, in turn, had an effect on the tendency of pain patients to respond with more fear and avoidance.

CONCLUSIONS

This study provides empirical support for the potential role of PTSD symptoms in fear-avoidance models of chronic pain and suggests that AS is a relevant variable in the relationship between both disorders.

Reduction of cognitive concerns of anxiety sensitivity is uniquely associated with reduction of PTSD and depressive symptoms: a comparison of civilians and veterans

PTSD and comorbid depression are common among civilians and veterans, resulting in substantial impairment. Anxiety sensitivity (AS) may be a common malleable vulnerability factor for PTSD and depression. The AS cognitive concerns subscale is most strongly related to symptoms of PTSD and depression, and thus, may be an efficient route to reduce these symptoms. The current study evaluated a brief computerized intervention targeting AS cognitive concerns. Specifically, we evaluated whether reduction in AS cognitive concerns was associated with reduction in symptoms of PTSD and depression. Also, we evaluated whether there was a significant difference between civilians and veterans in response to the intervention. The single session intervention utilized psychoeducation and interoceptive exposure to target AS cognitive concerns. This intervention was compared to a health information condition among a sex-matched sample of civilians and veterans with elevated AS cognitive concerns (N = 56). Reduction in AS cognitive concerns over one month was uniquely associated with reduction in PTSD and depressive symptoms in the same time frame. There were no significant differences between civilians and veterans in response to the intervention suggesting the intervention has efficacy for both groups. Treatment implications are discussed.

Main and interactive effects of anxiety sensitivity and physical distress intolerance with regard to PTSD symptoms among trauma-exposed smokers

The present study examined the roles of anxiety sensitivity (AS; the tendency to misinterpret physical internal sensations of harmful) and distress tolerance (the capacity to tolerate aversive stimuli) in terms of the expression of posttraumatic stress disorder (PTSD) symptoms among a sample of trauma-exposed, treatment-seeking tobacco smokers (n = 137; Mage = 37.7 years, 48.2% female). It was hypothesized that higher AS and lower physical distress tolerance would interact to predict greater PTSD avoidance and hyperarousal symptoms. Results were partially consistent with this prediction. Specifically, there was a significant interactive effect of AS by physical distress tolerance in terms of PTSD hyperarousal symptom cluster severity. The form of the interaction was in the expected direction, with the highest levels of PTSD hyperarousal symptoms reported among smokers with higher levels of AS and a lower capacity to tolerate physical distress. Findings underscore the importance of considering AS and physical distress tolerance in terms of better understanding mechanisms underlying the expression of PTSD symptoms among trauma-exposed smokers.

Anxiety Sensitivity as a Moderator of the Association Between Premenstrual Symptoms and Posttraumatic Stress Disorder Symptom Severity

Experience of premenstrual symptoms may be an important factor involved in understanding posttraumatic stress disorder (PTSD) symptom vulnerability. Correlations between PTSD and premenstrual dysphoric disorder (PMDD) have been identified in epidemiological studies, however, the nature of this relation is not clear. The current study examined the incremental validity of premenstrual symptoms, as well as their interaction with anxiety sensitivity, in the prediction of PTSD symptom severity above and beyond other theoretically relevant covariates. A community sample of trauma-exposed women (N = 63) completed questionnaires assessing premenstrual symptoms, anxiety sensitivity, and neuroticism and were administered the Clinician-Administered PTSD Scale to assess PTSD symptom severity. A series of hierarchical linear regressions revealed that premenstrual symptoms uniquely predicted PTSD total, reexperiencing, avoidance, and hyperarousal symptoms above and beyond other theoretically relevant covariates (i.e., number of potentially traumatic events, neuroticism, panic attack history, and anxiety sensitivity). Additionally, anxiety sensitivity emerged as a moderator of the association between premenstrual symptoms and PTSD symptom severity such that greater premenstrual symptoms were associated with greater PTSD total, reexperiencing, and numbing symptom severity for individuals high, but not low, in anxiety sensitivity. Experience of premenstrual symptoms may be an important sex-specific mechanism involved in increasing vulnerability for PTSD symptoms, particularly among women high in anxiety sensitivity.

Experiential, autonomic, and respiratory correlates of CO2 reactivity in individuals with high and low anxiety sensitivity

Psychometric studies indicate that anxiety sensitivity (AS) is a risk factor for anxiety disorders such as panic disorder (PD). To better understand the psychophysiological basis of AS and its relation to clinical anxiety, we examined whether high-AS individuals show similarly elevated reactivity to inhalations of carbon dioxide (CO2) as previously reported for PD and social phobia in this task. Healthy individuals with high and low AS were exposed to eight standardized inhalations of 20% CO2-enriched air, preceded and followed by inhalations of room air. Anxiety and dyspnea, in addition to autonomic and respiratory responses were measured every 15 s. Throughout the task, high AS participants showed a respiratory pattern of faster, shallower breathing and reduced inhalation of CO2 indicative of anticipatory or contextual anxiety. In addition, they showed elevated dyspnea responses to the second set of air inhalations accompanied by elevated heart rate, which could be due to sensitization or conditioning. Respiratory abnormalities seem to be common to high AS individuals and PD patients when considering previous findings with this task. Similarly, sensitization or conditioning of anxious and dyspneic symptoms might be common to high AS and clinical anxiety. Respiratory conditionability deserves greater attention in anxiety disorder research.

Longitudinal course of anxiety sensitivity and PTSD symptoms in cognitive-behavioral therapies for PTSD

Anxiety sensitivity (AS) has been conceptualized as trait-like vulnerability and maintenance factor for PTSD. Although recent literature has demonstrated its malleability during treatment, few have examined its influence on and effect from PTSD treatment. Using multilevel regression analyses we examined: (a) changes in AS during treatment and (b) whether pre-treatment AS predicted PTSD treatment response, in sample of female victims of interpersonal trauma receiving one of three treatments (cognitive processing therapy, cognitive processing therapy-cognitive, and written accounts). Participants exhibited reductions in total ASI scores from pre- to post-treatment. Growth curve modeling revealed slightly different trajectories of PTSD symptoms as a function of pre-treatment AS, and overall decreases in PTSD symptoms during treatment were not associated with pretreatment AS. Pretreatment AS dimensions impacted PTSD total scores and symptoms clusters differentially. Clinical and theoretical implications for these results are discussed.

Distress tolerance and anxiety sensitivity cognitive concerns: testing the incremental contributions of affect dysregulation constructs on suicidal ideation and suicide attempt

Empirical work has suggested relationships among suicide-related outcomes and several constructs related to affect dysregulation, notably anxiety sensitivity (AS) and distress tolerance (DT). However, important questions remain, including the relative contributions of these affect regulation variables as well as the direct contribution of DT on suicidal ideation and prior attempts. The current study sought to better elucidate the nature of these relationships by examining AS, DT, and suicidal ideation and attempt in a clinical sample (N=192). Consistent with prior work and prediction, findings revealed a significant relationship between the AS cognitive concerns subfactor and suicidal ideation and suicide attempt history after accounting for the effects of DT, gender, and depressive symptoms. In addition, depressive symptoms significantly moderated the relationship between the AS cognitive concerns subfactor and suicidal ideation. After accounting for the influence of AS, analyses revealed that DT approached significance in predicting suicidal ideation, but did not significantly predict suicide attempt history. These results suggest that elevated AS cognitive concerns are particularly relevant to suicide in the context of depressive symptoms. Clinicians may benefit from implementing AS reduction strategies with individuals who endorse elevated suicide risk as well as elevated AS cognitive concerns.

The role of trait anxiety in reducing the relationship between childhood exposure to violence/victimization and subsequent violent behavior among male delinquent youth

In this project, the authors examined the relationship trait anxiety has on incarcerated male adolescents' progression from childhood exposure to violence/victimization to violent behavior. Self-report survey data were analyzed to determine the youth's levels of trait anxiety, how the degree of childhood trauma was related to their level of anxiety, as well as whether their level of anxiety affected the relationship between trauma and subsequent frequency and severity of their delinquent acts using a moderation analysis. Anxiety significantly decreased the relationship between victimization and the commission of violence (F = 15.93, p < .001).

Factor mixture model of anxiety sensitivity and anxiety psychopathology vulnerability

BACKGROUND

The purpose of the present study was to shed light on the latent structure and nature of individual differences in anxiety sensitivity (AS) and related risk for psychopathology.

METHODS

The present study evaluated the latent structure of AS using factor mixture modeling (FMM; Lubke and Muthén, 2005) and tested the relations between the observed FMM-based model of AS and psychopathology in a large, diverse adult clinical research sample (N=481; 57.6% women; M(SD)(age)=36.6(15.0) years).

RESULTS

Findings showed that a two-class three-factor partially invariant model of AS demonstrated significantly better fit than a one-class dimensional model and more complex multi-class models. As predicted, risk conferred by AS taxonicity was specific to anxiety psychopathology, and not to other forms of psychopathology.

LIMITATIONS

The sample was not epidemiologic, self-report and psychiatric interview data were used to index AS and psychopathology, and a cross-sectional design limited inference regarding the directionality of observed relations between AS and anxiety psychopathology.

CONCLUSIONS

Findings are discussed with respect to the nature of AS and related anxiety psychopathology vulnerability specifically, as well as the implications of factor mixture modeling for advancing taxonomy of vulnerability and psychopathology more broadly.

Prospective evaluation of the effect of an anxiety sensitivity intervention on suicidality among smokers

Recent empirical work has revealed a significant relationship between anxiety sensitivity (AS), particularly the AS cognitive concerns subfactor, and suicidality among cigarette smokers. The current study prospectively tested whether an intervention targeting AS (i.e. an AS-augmented smoking cessation program) would predict lower suicidality in a population known to be at increased risk for death by suicide (i.e. cigarette smokers). Participants (N = 169) were randomly assigned to a standard cognitive behavioral smoking intervention or a cognitive behavioral smoking intervention with an AS reduction component. Findings indicate that the participants who received the AS-augmented intervention had lower suicidality compared to those in the standard intervention, even accounting for baseline suicidality, substance use disorder diagnosis, current depression, current anxiety, and current smoking status. As the first examination of the effect of an AS reduction program on suicidality, this study provides initial support for the hypothesis that reducing AS may lead to lower suicidality. Future work should include testing an AS intervention in a sample with elevated suicidality, as well as specifically targeting AS cognitive concerns, which has a stronger and more consistent relationship with suicidality than global AS.

Pretrauma risk factors for posttraumatic stress disorder: a systematic review of the literature

As it has become clear that most individuals exposed to trauma do not develop PTSD, it has become increasingly important to examine pretrauma risk factors. However, PTSD research has overwhelmingly relied on retrospective accounts of trauma, which is beleaguered by problems of recall bias. To further our understanding of PTSD's etiology, a systematic review of 54 prospective, longitudinal studies of PTSD published between 1991 and 2013 were examined. Inclusion criteria required that all individuals were assessed both before and after an index trauma. Results revealed six categories of pretrauma predictor variables: 1) cognitive abilities; 2) coping and response styles; 3) personality factors; 4) psychopathology; 5) psychophysiological factors; and 6) social ecological factors. The results indicated that many variables, previously considered outcomes of trauma, are pretrauma risk factors. The review considered these findings in the context of the extant retrospective PTSD literature in order to identify points of overlap and discrepancy. Pretrauma predictor categories were also used to conceptualize variable risk for PTSD. Limitations and directions for future research are discussed.

Examination of Increased Mental Contamination as a Potential Mechanism in the Association Between Disgust Sensitivity and Sexual Assault-Related Posttraumatic Stress

Disgust sensitivity and feelings of mental contamination have both been independently linked to posttraumatic stress symptoms following sexual assault. Theory suggests that feelings of mental contamination may arise, at least in part, as a result of interpreting feelings of disgust experienced in relation to sexual assault to mean that one has been contaminated or tainted by the experience. This study involved an initial test of this model by examining relations among disgust sensitivity, feelings of mental contamination, and posttraumatic stress symptom severity among a sample of female sexual assault victims. Results suggested that one mechanism through which disgust sensitivity might relate to posttraumatic stress symptom severity is through its association with increased feelings of mental contamination. These findings highlight the importance of assessing feelings of disgust and mental contamination among victims of sexual assault, and the need for future research to elucidate the nature of these relations with posttraumatic stress.

Prevalence, comorbidity and stability of post-traumatic stress disorder and anxiety and depression symptoms after exposure to physical assault: an 8-year prospective longitudinal study

BACKGROUND

There is a lack of prospective longitudinal studies focusing specifically on the victims exposed to physical violence by a perpetrator other than a family member.

AIMS

To assess the prevalence and comorbidity of post-traumatic stress disorder (PTSD) and anxiety and depression symptoms and the stability of symptoms, in a population of victims of non-domestic physical violence through 8 years.

METHOD

This study had a single group longitudinal design with four repeated measures-the first as soon as possible after the exposure (n = 143 at T1), the second 3 months later (n = 94 at T2), the third after 1 year (n = 73 at T3) and the fourth after 8 years (n = 47 at T4). Questionnaires used were Impact of Event Scale-15 and 22 (IES-15 and 22), Post Traumatic Symptom Scale-10 (PTSS-10) and the Hopkins Symptoms Check List (HSCL-25).

RESULTS

Probable PTSD cases measured with IES-15 were 33.6% at T1, 30.9 at T2, 30.1% at T3 (12 months) and 19.1% at T4 (8 years), while probable anxiety and depression cases measured with HSCL-25 were 42.3% at T1, 35.5% at T2, 35.6% at T3 and 23.4% at T4. The estimated probability of recovery from PTSD symptoms during the 8 years is 52%, whereas the corresponding finding concerning anxiety and depression is 43%.

CONCLUSION

The consequences of exposure to physical assault by strangers need to be given more attention as a severe risk of chronic mental health problems.

Anxiety sensitivity and sleep quality: independent and interactive predictors of posttraumatic stress disorder symptoms

A cardinal feature of posttraumatic stress disorder (PTSD) is decreased sleep quality. Anxiety sensitivity (AS) is one factor that has shown early theoretical and empirical promise in better understanding the relation between sleep quality and PTSD outcomes. The current study is the first to test the independent and interactive effects of sleep quality and AS on PTSD symptoms. Consistent with hypotheses, AS and sleep quality were found to be independent and interactive predictors of PTSD symptom severity in our sample of male military veterans seeking treatment for PTSD. Slope analyses revealed that AS was differentially related to PTSD symptom severity as a function of quality of sleep. The veterans with good sleep quality and relatively lower levels of AS had the lowest level of PTSD symptoms, whereas the veterans with poor sleep quality and low AS evidenced severity of PTSD symptoms similar to those with high AS.

Risk of co-occuring psychopathology: testing a prediction of expectancy theory

Despite the high impact of anxiety sensitivity (AS; a fear of anxiety related sensations) research, almost no research attention has been paid to its parent theory, Reiss' expectancy theory (ET). ET has gone largely unexamined to this point, including the prediction that AS is a better predictor of number of fears than current anxiety. To test Reiss' prediction, we used a large (N = 317) clinical sample of anxiety outpatients. Specifically, we examined whether elevated AS predicted number of comorbid anxiety and non-anxiety disorder diagnoses in this sample. Consistent with ET, findings indicated that AS predicted number of comorbid anxiety disorder diagnoses above and beyond current anxiety symptoms. Also, AS did not predict the number of comorbid non-anxiety diagnoses when current anxiety symptoms were accounted for. These findings represent an important examination of a prediction of Reiss' ET and are consistent with the idea that AS may be a useful transdiagnostic treatment target.

The efficacy of vigorous-intensity exercise as an aid to smoking cessation in adults with elevated anxiety sensitivity: study protocol for a randomized controlled trial

Background

Although cigarette smoking is a leading cause of death and disability in the United States (US), over 40 million adults in the US currently smoke. Quitting smoking is particularly difficult for smokers with certain types of psychological vulnerability. Researchers have frequently called attention to the relation between smoking and anxiety-related states and disorders, and evidence suggests that panic and related anxiety vulnerability factors, specifically anxiety sensitivity (AS or fear of somatic arousal), negatively impact cessation. Accordingly, there is merit to targeting AS among smokers to improve cessation outcome. Aerobic exercise has emerged as a promising aid for smoking cessation for this high-risk (for relapse) group because exercise can effectively reduce AS and other factors predicting smoking relapse (for example, withdrawal, depressed mood, anxiety), and it has shown initial efficacy for smoking cessation. The current manuscript presents the rationale, study design and procedures, and design considerations of the Smoking Termination Enhancement Project (STEP).

Methods

STEP is a randomized clinical trial that compares a vigorous-intensity exercise intervention to a health and wellness education intervention as an aid for smoking cessation in adults with elevated AS. One hundred and fifty eligible participants will receive standard treatment (ST) for smoking cessation that includes cognitive behavioral therapy (CBT) and nicotine replacement therapy (NRT). In addition, participants will be randomly assigned to either an exercise intervention (ST+EX) or a health and wellness education intervention (ST+CTRL). Participants in both arms will meet 3 times a week for 15 weeks, receiving CBT once a week for the first 7 weeks, and 3 supervised exercise or health and wellness education sessions (depending on randomization) per week for the full 15-week intervention. Participants will be asked to set a quit date for 6 weeks after the baseline visit, and smoking cessation outcomes as well as putative mediator variables will be measured up to 6 months following the quit date.

Discussion

The primary objective of STEP is to evaluate whether vigorous-intensity exercise can aid smoking cessation in anxiety vulnerable adults. If effective, the use of vigorous-intensity exercise as a component of smoking cessation interventions would have a significant public health impact. Specifically, in addition to improving smoking cessation treatment outcome, exercise is expected to offer benefits to overall health, which may be particularly important for smokers. The study is also designed to test putative mediators of the intervention effects and therefore has the potential to advance the understanding of exercise-anxiety-smoking relations and guide future research on this topic.

Clinical trials registry

ClinicalTrials.gov, NCT01065506, http://clinicaltrials.gov/ct2/show/NCT01065506

A consideration of select pre-trauma factors as key vulnerabilities in PTSD

Posttraumatic stress disorder (PTSD) is a pathological response to a traumatic event. A number of risk and vulnerability factors predicting PTSD development have been identified in the literature. Many of these variables are specific factors occurring during and after exposure to a traumatic event or are not measured prospectively to assess temporal sequence. Recent research, however, has begun to focus on pre-trauma individual differences that could contribute to risk for developing PTSD. The present review proposes that a number of biological and cognitive vulnerability factors place individuals at risk for PTSD development prior to the actual experience of trauma. Accordingly, this review provides a summary of evidence for a select number of these factors as pre-trauma vulnerabilities to PTSD. Included is a discussion of biological factors, including molecular genetic studies of systems regulating serotonin, catecholamines, and glucocorticoids as well as aspects of the neuroendocrine system. Specific cognitive factors are also considered, including intelligence, neuropsychological functioning and cognitive biases such as negative attributional style and appraisals. For each factor, the present review summarizes evidence to date regarding PTSD vulnerability and highlights directions for future research in this area.

Schutz- und Risikofaktoren für Traumafolgestörungen

Theoretischer Hintergrund: Schutzfaktoren und Risikofaktoren tragen zur Prognose, Indikation und Interventionsplanung bei Menschen nach traumatischen Ereignissen bei. Bisherige systematische Reviews fassen die Befunde bis maximal 2007 zusammen und fokussieren auf Posttraumatische Belastungsstörungen. Fragestellung: Systematisches Review unter Einschluss der Befunde für die Jahre 2007 bis 2010 und Berücksichtigung weiterer Traumafolgestörungen. Methode: Analyse von 13 systematischen Reviews und 29 prospektiven Originalarbeiten zu Schutz- und Risikofaktoren für Traumafolgestörungen nach Typ-I-Traumata. Ergebnisse: Es werden Befunde zu prätraumatischen (Soziodemographie, Biographie, psychische Störungen, Persönlichkeitsfaktoren), peritraumatischen (Art und Schwere des Ereignisses, psychische Verfassung während des Ereignisses, peritraumatische Reaktion) und posttraumatischen Faktoren (akute psychische Symptome, Kognitionen, Coping, Vermeidungsverhalten, soziale Unterstützung, zusätzliche Stressoren) dargestellt. Schlussfolgerungen: Vor allem peri- und posttraumatische Schutz- und Risikofaktoren eignen sich für die Vorhersage von Traumafolgestörungen.

The relationship of sleep quality and PTSD to anxious reactivity from idiographic traumatic event script-driven imagery

Poor sleep quality has been linked to posttraumatic stress disorder (PTSD). This study provided a test of how poor sleep quality relates to real-time assessment of anxious reactivity to idiographic traumatic event cues. Script-driven imagery (SDI) was employed to examine reactivity to traumatic event cues among 46 women (mean age = 27.54 years, SD = 13.62; 87% Caucasian) who had experienced either physical or sexual assault. We tested 3 hypotheses: (a) individuals with PTSD would report greater anxiety reactions to SDI than trauma-exposed individuals without PTSD, (b) poorer sleep quality would be positively related to anxiety reactions to SDI, and (c) there would be an interaction between PTSD and sleep quality such that individuals with PTSD and relatively poor sleep quality would report greater anxious reactivity to SDI than would be expected from each main effect alone. Poor sleep quality and PTSD were related to elevated anxious reactivity to trauma cues (sr(2) = .06). In addition, sleep quality was negatively associated with anxious reactivity among people without PTSD (sr(2) =.05). The current findings, in combination with longitudinal evidence, suggest that poor sleep quality following exposure to a traumatic event may be a risk factor for anxious reactivity to traumatic event cues.

Single-session anxiety sensitivity reduction program for trauma-exposed adults: a case series documenting feasibility and initial efficacy

The present case series examined a single-session, cognitive-behavioral anxiety sensitivity (AS) reduction program among five trauma-exposed adults. Participants (age range=19-37 years) reported significantly elevated levels of AS at baseline, a history of posttraumatic stress disorder Criterion A trauma exposure, and no current Axis I psychopathology. The outcomes of the preventive intervention were examined with regard to 3-month postintervention changes in AS, posttraumatic stress, panic attack frequency and severity, negative affect levels, and behavioral functioning and impairment. Results demonstrated decreases in each of the studied outcomes over the examined time period. This preliminary yet uncontrolled data provides empirical evidence of the feasibility and support for the utilization of a brief AS reduction intervention program to target anxiety-related vulnerability among trauma-exposed adults.

Remission from post-traumatic stress disorder in the general population

BACKGROUND

Few studies have focused on post-traumatic stress disorder (PTSD) remission in the population, none have modelled remission beyond age 54 years and none have explored in detail the correlates of remission from PTSD. This study examined trauma experience, symptom severity, co-morbidity, service use and time to PTSD remission in a large population sample.

METHOD

Data came from respondents (n=8841) of the 2007 Australian National Survey of Mental Health and Wellbeing (NSMHWB). A modified version of the World Health Organization's World Mental Health Composite International Diagnostic Interview (WMH-CIDI) was used to determine the presence and age of onset of DSM-IV PTSD and other mental and substance use disorders, type, age, and number of lifetime traumas, severity of re-experiencing, avoidance and hypervigilance symptoms and presence and timing of service use.

RESULTS

Projected lifetime remission rate was 92% and median time to remission was 14 years. Those who experienced childhood trauma, interpersonal violence, severe symptoms or a secondary anxiety or affective disorder were less likely to remit from PTSD and reported longer median times to remission compared to those with other trauma experiences, less severe symptoms or no co-morbidity.

CONCLUSIONS

Although most people in the population with PTSD eventually remit, a significant minority report symptoms decades after onset. Those who experience childhood trauma or interpersonal violence should be a high priority for intervention.

Exploration of a factor mixture-based taxonic-dimensional model of anxiety sensitivity and transdiagnostic psychopathology vulnerability among trauma-exposed adults

The aim of this study was to evaluate the associations between a factor mixture-based taxonic-dimensional model of anxiety sensitivity (AS) and posttraumatic stress, panic, generalized anxiety, depression, psychiatric multimorbidity, and quality of life among a young adult sample exposed to traumatic stress (N = 103, n (females) = 66, M (age) = 23.68 years, SD (age) = 9.55). Findings showed support for the conceptual and operational utility of the AS taxonic-dimensional model with respect to concurrent transdiagnostic vulnerability among trauma-exposed adults. Specifically, relative to the low-AS group, the high-AS group demonstrated elevated levels of panic, depressive, and posttraumatic stress symptom severity as well as greater psychiatric multimorbidity and poorer quality of life. Furthermore, past-month MDD, GAD, PTSD, and panic attacks occurred nearly exclusively among the high-AS group. Continuous AS physical and psychological concerns scores were found to be significantly related to levels of panic and posttraumatic stress symptom severity, psychiatric multimorbidity as well as panic attack status only among the high-AS group and not among the low-AS group. Findings are discussed with respect to their implications for the conceptual and operational utility of the FMM-based taxonic-dimensional model of AS, related vulnerability for psychopathology in the context of trauma, and the clinical implications of these findings for assessment and intervention.

Nature and role of change in anxiety sensitivity during NRT-aided cognitive-behavioral smoking cessation treatment

This study evaluated the associations between change in anxiety sensitivity (AS; fear of the negative consequences of anxiety and related sensations) and lapse and relapse during a 4-week group NRT-aided cognitive-behavioral Tobacco Intervention Program. Participants were 67 (44 women; M (age) = 46.2 years, SD = 10.4) adult daily smokers. Results indicated that participants who maintained high levels of AS from pretreatment to 1 month posttreatment, compared to those who demonstrated a significant reduction in AS levels during this time period, showed a significantly increased risk for lapse and relapse. Further inspection indicated that higher continuous levels of AS physical and psychological concerns, specifically among those participants who maintained elevated levels of AS from pre- to posttreatment, predicted significantly greater risk for relapse. Findings are discussed with respect to better understanding change in AS, grounded in an emergent taxonic-dimensional factor mixture model of the construct, with respect to lapse and relapse during smoking cessation.

Anxiety Sensitivity, Emotional Avoidance, and PTSD Symptom Severity Among Crack/Cocaine Dependent Patients in Residential Treatment

High rates of co-occurring posttraumatic stress disorder (PTSD) have been found among patients receiving treatment for substance use disorders (SUD), and there is evidence that this particular co-occurrence is associated with negative SUD treatment outcomes. Thus, there is utility in establishing the role of psychological vulnerabilities related to PTSD within SUD populations, with the goal of ultimately informing targeted interventions and improving clinical outcomes. Anxiety sensitivity (AS) and emotional avoidance (EA) may be two important factors in this regard, as both have been found to demonstrate associations with posttraumatic stress in other clinical and nonclinical populations. To expand upon this literature, the current study examined the associations between AS and EA and PTSD symptom severity in a sample of traumatic event-exposed crack/cocaine dependent patients in residential SUD treatment (n = 62), as well as the extent to which EA mediated the relation between AS and PTSD symptom severity. As hypothesized, AS and EA were associated with PTSD symptom severity above and beyond the effects of gender and non-specific anxiety symptoms. However, the hypothesis that EA would mediate the relation between AS and PTSD symptom severity was only partially supported. Implications of these findings for understanding and treating co-occurring SUD-PTSD are discussed.

Prospective evaluation of the effects of anxiety sensitivity and state anxiety in predicting acute nicotine withdrawal symptoms during smoking cessation

The current investigation explored the main and interactive effects of anxiety sensitivity (AS) and state anxiety in predicting acute nicotine withdrawal symptoms experienced during the initial 14 days of smoking cessation. Participants included 123 adult daily smokers (84 women; Mage = 45.93 years, SD = 10.34) undergoing psychosocial-pharmacological cessation treatment. Results indicated that after controlling for the effects of participant sex and nicotine dependence, state anxiety but not AS significantly predicted initial levels of nicotine withdrawal symptoms. Results also demonstrated that both state anxiety and AS were significantly related to the change in nicotine withdrawal symptoms over time. Finally, our results revealed a significant interaction between AS and state anxiety. Specifically, higher levels of AS were associated with a stronger relation between state anxiety and nicotine withdrawal symptoms experienced during the cessation attempt. Results suggest that among high AS persons, state anxiety may be more relevant, compared to those low in AS, in regard to experiencing withdrawal symptoms as more intense during the early phases of quitting.

Individual differences in emotionality and peri-traumatic processing

BACKGROUND AND OBJECTIVES

Recent cognitive models propose that intrusive trauma memories arise and persist because high levels of emotional arousal triggered by the trauma disrupt conceptual processing of elements of the event, while enhancing sensory/perceptual processing. A trauma film analogue design was used to investigate if the predicted facilitating effects on intrusions from inhibiting conceptual processing and predicted attenuating effects on intrusions from inhibiting sensory processing are moderated by individual differences in emotionality.

METHODS

One hundred and five non-clinical participants viewed a traumatic film while undertaking a conceptual interference task, a sensory interference task, or no interference task. Participants recorded the frequency and intensity of intrusions over the following week.

RESULTS

There was no facilitating effect for the conceptual interference task compared to no interference task. A significant attenuation of the frequency of intrusions was evident for those undertaking sensory interference (ŋ(2) = .04). This effect, however, was only present for those with high trait anxiety (d = .82) and not for those with low trait anxiety (d = .08). Relative to high trait anxious controls, high anxious participants who undertook sensory interference also reported lower intensity of intrusions (d = .66).

CONCLUSIONS

This is the first trauma film analogue study to show that the attenuating effect of concurrent sensory/perceptual processing on the frequency and intensity of subsequent intrusions is evident only for people with high trait anxiety. The results have implications for conceptual models of intrusion development and for their application to the prevention of post traumatic distress.

Anxiety sensitivity cognitive concerns predict suicidality among smokers

BACKGROUND

Anxiety along with anxiety-related risk factors is receiving increased attention in regard to its role in elevated suicidality. One such risk factor, anxiety sensitivity (AS), refers to a fear of anxiety-related symptoms. Emerging research indicates that components of AS, particularly the AS subfactor focused on cognitive arousal concerns, are significantly associated with elevated suicidality in samples of diverse clinical outpatients, clinical outpatients with PTSD symptoms, and Air Force cadets undergoing a stressful life experience. Cigarette smokers represent another relevant population for this line of research due to recent reports indicating that cigarette smoking and nicotine dependence may be related to elevated suicidality.

METHODS

Study 1 examined the role of AS and the AS subfactors in a large sample (n=343) of community adult smokers. Study 2 examined the role of AS and AS subfactors in a sample of "pack-a-day" adult smokers (n=78) who were seeking outpatient treatment for substance abuse issues.

RESULTS

Study 1 results were consistent with our a priori hypothesis that AS cognitive concerns would be significantly associated with suicidality. Additionally, after covarying for relevant substance use variables, Study 2 results were also consistent with our hypothesis that AS cognitive concerns were significantly associated with suicidality.

LIMITATIONS

Limitations included the use of suicide related outcomes, not death by suicide, and cross-sectional design.

CONCLUSIONS

These findings suggest that suicide potential in cigarette smokers may be related to AS cognitive concerns and add to the emerging literature suggesting AS cognitive concerns are a risk factor for suicidality.

Panic attack history and anxiety sensitivity in relation to cognitive-based smoking processes among treatment-seeking daily smokers

INTRODUCTION

Empirical research has found that panic attacks are related to increased risk of more severe nicotine withdrawal and poor cessation outcome. Anxiety sensitivity (AS; fear of anxiety and related sensations) has similarly been found to be related to an increased risk of acute nicotine withdrawal and poorer cessation outcome. However, research has yet to examine the relative contributions of panic attacks and AS in terms of cognitive-based smoking processes (e.g., negative reinforcement smoking expectancies, addictive and negative affect-based reduction smoking motives, barriers to cessation, problem symptoms experienced while quitting).

METHOD

Participants (n = 242; 57.4% male; M (age) = 38.1) were daily smokers recruited as a part of a larger randomized control trial for smoking cessation. It was hypothesized that both panic attacks and AS would uniquely and independently predict the studied cognitive-based smoking processes.

RESULTS

As hypothesized, AS was uniquely and positively associated with all smoking processes after controlling for average number of cigarettes smoked per day, current Axis I diagnosis, and participant sex. However, panic attack history was only significantly related to problem symptoms experienced while quitting smoking.

CONCLUSIONS

Although past research has demonstrated significant associations between panic attacks and certain aspects of cigarette smoking (e.g., severity of nicotine withdrawal; lower abstinence rates, and negative affect reduction motives), the present findings suggest that AS may be more relevant to understanding beliefs about and motives for smoking behavior as well as perceptions of cessation-related difficulties.

The role of teachers' expectations in the association between children's SES and performance in kindergarten: a moderated mediation analysis

This study examines the role of teachers' expectations in the association between children's socio-economic background and achievement outcomes. Furthermore, the role of children's ethnicity in moderating this mediated relation is investigated. In the present study, 3,948 children from kindergarten are examined. Data are analysed by means of structural equation modeling. First, results show that teachers' expectations mediate the relation between children's SES and their later language and math achievement, after controlling for children's ethnicity, prior achievement and gender. This result indicates that teachers may exacerbate individual differences between children. Second, children's ethnicity moderates the mediation effect of teachers' expectations with respect to math outcomes. The role of teachers' expectations in mediating the relation between SES and math outcomes is stronger for majority children than for minority children.

Anxiety sensitivity and breath-holding duration in relation to PTSD symptom severity among trauma exposed adults

The present investigation examined the main and interactive effects of anxiety sensitivity and behavioral distress tolerance, indexed using the breath-holding task, in relation to PTSD symptom severity among trauma-exposed adults. Participants were 88 adults (63.6% women; M(age)=22.9, SD=9.1, range=18-62), recruited from the community, who met DSM-IV-TR PTSD Criterion A for lifetime trauma exposure. Covariates included number of potentially traumatic events, nonclinical panic attack history, and participant sex. Anxiety sensitivity was significantly incrementally associated with PTSD total symptom severity, as well as Avoidance and Hyperarousal symptom severity (p's<.01). Breath-holding duration was not significantly related to PTSD symptom severity (p's>.05). However, breath-holding duration emerged as a significant moderator of the association between anxiety sensitivity and PTSD Avoidance symptom severity, such that lower breath-holding duration exacerbated the effect of heightened anxiety sensitivity with regard to PTSD Avoidance symptom severity.

Anxiety sensitivity and cognitive-based smoking processes: testing the mediating role of emotion dysregulation among treatment-seeking daily smokers

The current study investigated whether emotion dysregulation (difficulties in the self-regulation of affective states) mediated relationships between anxiety sensitivity (fear of anxiety and related sensations) and cognitive-based smoking processes. Participants (n = 197; 57.5% male; mean age = 38.0 years) were daily smokers recruited as part of a randomized control trial for smoking cessation. Anxiety sensitivity was uniquely associated with all smoking processes. Moreover, emotion dysregulation significantly mediated relationships between anxiety sensitivity and the smoking processes. Findings suggest that emotion dysregulation is an important construct to consider in relationships between anxiety sensitivity and cognitive-based smoking processes among adult treatment-seeking smokers.