Efficacy of a Brief Blended Cognitive Behavioral Therapy Program for the Treatment of Depression and Anxiety in University Students: Uncontrolled Intervention Study

BACKGROUND

Blended cognitive behavioral therapy (bCBT)-the combination of cognitive behavioral therapy and digital mental health applications-has been increasingly used to treat depression and anxiety disorders. As a resource-efficient treatment approach, bCBT appears promising for addressing the growing need for mental health care services, for example, as an early intervention before the chronification of symptoms. However, further research on the efficacy and feasibility of integrated bCBT interventions is needed.

OBJECTIVE

This study aimed to evaluate the efficacy of a novel bCBT program comprising short (25 min), weekly face-to-face therapy sessions combined with a smartphone-based digital health app for treating mild to moderate symptoms of depression or anxiety.

METHODS

This prospective uncontrolled trial comprised 2 measurement points (before and after treatment) and 2 intervention groups. We recruited university students with mild to moderate symptoms of depression or anxiety. On the basis of the primary symptoms, participants were assigned to either a depression intervention group (n=67 completers) or an anxiety intervention group (n=33 completers). Participants in each group received 6 weekly individual psychotherapy sessions via videoconference and completed modules tailored to their respective symptoms in the smartphone-based digital health app.

RESULTS

The depression group displayed medium to large improvements in the symptoms of depression (Cohen d=-0.70 to -0.90; P<.001). The anxiety group experienced significant improvements in the symptoms of generalized anxiety assessed with the Generalized Anxiety Disorder-7 scale with a large effect size (Cohen d=-0.80; P<.001) but not in symptoms of anxiety assessed with the Beck Anxiety Inventory (Cohen d=-0.35; P=.06). In addition, both groups experienced significant improvements in their perceived self-efficacy (Cohen d=0.50; P<.001 in the depression group and Cohen d=0.71; P<.001 in the anxiety group) and quality of life related to psychological health (Cohen d=0.87; P<.001 in the depression group and Cohen d=0.40; P=.03 in the anxiety group). Work and social adjustment of patients improved significantly in the depression group (Cohen d=-0.49; P<.001) but not in the anxiety group (Cohen d=-0.06; P=.72). Patients' mental health literacy improved in the anxiety group (Cohen d=0.45; P=.02) but not in the depression group (Cohen d=0.21; P=.10). Patient satisfaction with the bCBT program and ratings of the usability of the digital app were high in both treatment groups.

CONCLUSIONS

This study provides preliminary evidence for the feasibility and efficacy of a novel brief bCBT intervention. The intervention effects were generalized across a broad spectrum of patient-reported outcomes. Hence, the newly developed bCBT intervention appears promising for treating mild to moderate depression and anxiety in young adults.

Safety aid elimination as a brief, preventative intervention for social anxiety: A randomized controlled trial in university students

Although there are a variety of treatment options for social anxiety, effective prevention strategies for those with subclinical social anxiety are limited. This study evaluated a single session group formatted prevention program focused on the reduction of safety behaviors in both a proof-of-concept study and a randomized controlled trial (RCT). Participants (N = 59) were nontreatment seeking Japanese university students with high levels of social anxiety. Participants were randomized to either an active treatment focused on identification and elimination of safety behavior or a control group involving the discussion of healthy coping strategies. Both conditions met for 120 min in small groups (4 to 6 participants per group). The preliminary proof-of-concept study as well as the RCT demonstrated high levels of acceptability. Findings from the RCT indicated significant improvement in social anxiety symptoms among those in the active treatment condition at post-treatment, which was maintained at follow-up. In addition, participants in the treatment condition showed significant improvement in levels of depression. The effect size difference in symptoms between conditions was in the large range. The present study provides preliminary support for the efficacy of a newly developed treatment program targeting safety behaviors in students with subclinical social anxiety. The current results also illustrate the promise of a brief, indicated prevention strategy focused on safety behavior among those with subclinical social anxiety.

Anxiety Sensitivity as a Malleable Mechanistic Target for Prevention Interventions: A Meta-Analysis of the Efficacy of Brief Treatment Interventions

Anxiety sensitivity (AS) is a transdiagnostic risk factor and potential treatment target for prevention of associated psychopathology and negative health behaviors. We conducted a meta-analysis evaluating the efficacy of brief interventions in at-risk samples for reducing AS and associated clinical/behavioral outcomes (e.g., depression, alcohol use) across 28 studies (1,998 participants). AS targeted interventions, compared to control conditions, evidenced a significant moderate effect size for alleviating AS from pre- to post-treatment (d = 0.54) and approached a large effect size from pre-treatment to short-term follow-up (d = 0.78). The effect size for long-term follow-up did not reach significance (d = 0.29). For clinical/behavioral outcomes, AS interventions demonstrated significant small-to-moderate effect sizes for the three timepoints examined (d's = 0.20-0.41). Our findings help validate AS as a modifiable mechanistic target for prevention efforts.

Supporting Mental Health During the COVID-19 Pandemic Using a Digital Behavior Change Intervention: An Open-Label, Single-Arm, Pre-Post Intervention Study

Background

The COVID-19 pandemic is taking a toll on people’s mental health, particularly as people are advised to adhere to social distancing, self-isolation measures, and government-imposed national lockdowns. Digital health technologies have an important role to play in keeping people connected and in supporting their mental health and well-being. Even before the COVID-19 pandemic, mental health and social services were already strained.

Objective

Our objective was to evaluate the 12-week outcomes of the digitally delivered Gro Health intervention, a holistic digital behavior change app designed for self-management of mental well-being, sleep, activity, and nutrition.

Methods

The study used a quasi-experimental research design consisting of an open-label, single-arm, pre-post intervention engagement using a convenience sample. Adults who had joined the Gro Health app (intervention) and had a complete baseline dataset (ie, 7-item Generalized Anxiety Disorder scale, Perceived Stress Scale, and 9-item Patient Health Questionnaire) were followed up at 12 weeks (n=273), including 33 (12.1%) app users who reported a positive COVID-19 diagnosis during the study period. User engagement with the Gro Health platform was tracked by measuring total minutes of app engagement. Paired t tests were used to compare pre-post intervention scores. Linear regression analysis was performed to assess the relationship between minutes of active engagement with the Gro Health app and changes in scores across the different mental health measures.

Results

Of the 347 study participants, 273 (78.67%) completed both the baseline and follow-up surveys. Changes in scores for anxiety, perceived stress, and depression were predicted by app engagement, with the strongest effect observed for changes in perceived stress score (F_1,271=251.397; R²=0.479; P<.001).

Conclusions

A digital behavior change platform that provides remote mental well-being support can be effective in managing depression, anxiety, and perceived stress during times of crisis such as the current COVID-19 pandemic. The outcomes of this study may also support the implementation of remote digital health apps supporting behavior change and providing support for low levels of mental health within the community.

Indicated prevention interventions for anxiety in children and adolescents: a review and meta-analysis of school-based programs

Anxiety disorders are among the most common youth mental health disorders. Early intervention can reduce elevated anxiety symptoms. School-based interventions exist but it is unclear how effective targeted approaches are for reducing symptoms of anxiety. This review and meta-analysis aimed to determine the effectiveness of school-based indicated interventions for symptomatic children and adolescents. The study was registered with PROSPERO [CRD42018087628]. We searched MEDLINE, EMBASE, PsycINFO, and the Cochrane Library for randomised-controlled trials comparing indicated programs for child and adolescent (5-18 years) anxiety to active or inactive control groups. Data were extracted from papers up to December 2019. The primary outcome was efficacy (mean change in anxiety symptom scores). Sub-group and sensitivity analyses explored intervention intensity and control type. We identified 20 studies with 2076 participants. Eighteen studies were suitable for meta-analysis. A small positive effect was found for indicated programs compared to controls on self-reported anxiety symptoms at post-test (g = - 0.28, CI = - 0.50, - 0.05, k = 18). This benefit was maintained at 6 (g = - 0.35, CI = - 0.58, - 0.13, k = 9) and 12 months (g = - 0.24, CI = - 0.48, 0.00, k = 4). Based on two studies, > 12 month effects were very small (g = - 0.01, CI = - 0.38, 0.36). No differences were found based on intervention intensity or control type. Risk of bias and variability between studies was high (I² = 78%). Findings show that school-based indicated programs for child and adolescent anxiety can produce small beneficial effects, enduring for up to 12 months. Future studies should include long-term diagnostic assessments.

A qualitative exploration of 14 to 17-year old adolescents' views of early and preventative mental health support in schools

BACKGROUND

Preventative interventions may be effective in reducing and preventing symptoms of mental ill health in children and young people. However, there is a paucity of research in this area that explores the views of young people. This paper reports on a qualitative study to inform the future development of attractive and appropriate early and preventative school-based mental health interventions.

METHODS

Semi-structured interviews were conducted with a purposive sample of 12 young people aged 14-17 in North East England. Interviews were audio-recorded, transcribed, anonymised and analysed following a thematic approach.

RESULTS

Four key themes were identified, relevant to those providing, designing and commissioning early and preventative mental health interventions in schools: 'mental health literacy', 'risk factors for wellbeing decline', 'experience of school-based support' and 'recommendations for future support'.

CONCLUSIONS

Young people have varying levels of mental health literacy, but are able to identify academic stress, bullying and the transition from primary to secondary school as leading causes of worry. Young people want more regular and in-depth mental health education, tailored levels of support in school and improved training for teachers.

The role of emotion regulation in socially anxious children and adolescents: a systematic review

While numerous studies suggest that emotion dysregulation is important in maintaining social anxiety among adults, the role of emotion regulation in children and adolescents with social anxiety is not yet well understood. In this systematic review, we use the process model of emotion regulation as a framework for understanding emotion regulation in children and adolescents with social anxiety. We performed a systematic literature search in the electronic data bases Medline and PsycINFO. Additional studies were identified by hand search. We identified 683 studies, screened their titles and abstracts, viewed 142 studies, and included 55 of these. Study results indicate that children and adolescents with social anxiety disorder or high social anxiety show emotion dysregulation across all five domains of emotion regulation, such as enhanced social avoidance, more safety behaviors, repetitive negative thinking, biased attention and interpretation of social information, and reduced emotional expression. While enhanced social avoidance seems to be specific to childhood social anxiety, other maladaptive emotion regulation strategies, such as repetitive negative thinking, seem to occur transdiagnostically across different childhood anxiety disorders. Implications for current theory, interventions and future research are discussed.

Transdiagnostic preventative intervention for subclinical anxiety: Development and initial validation

Risk factors associated with the development of anxiety disorders have been identified; however, the development of preventive interventions targeting these risk factors is in the nascent stage. To date, preventive interventions have tended to target specific anxiety disorder symptoms (e.g., panic attacks). Although these interventions are effective at reducing risk for the targeted disorder (e.g., panic disorder), the focus of the intervention is narrow, thereby limiting the dissemination of these interventions. One approach that may broaden the scope of our prevention efforts is the development of a transdiagnostic intervention. Currently, transdiagnostic interventions have only been used in those with diagnosed conditions (e.g., anxiety disorders); however, it stands to reason that a transdiagnostic approach may also be helpful for those at-risk for developing anxiety disorders. The present study reported on the development and use of a brief preventative intervention for those with subclinical anxiety (i.e., worry, social anxiety). Participants were randomized into either a transdiagnostic preventative intervention, focused on reduction of safety aids, or a health focused control group. Participants consisted of sixty-nine individuals with subclinical levels of anxiety. Results revealed significant between group differences in the reduction of social anxiety, worry, and levels of impairment with the active intervention group relative to the control group. Further, change in safety aid utilization was a significant mediator in the association between intervention group and social anxiety and worry at Week 1; however, it was not a significant mediator at Month 1. Implications of these results and avenues for future research are discussed.

A Meta-Analysis of Parenting Practices and Child Psychosocial Outcomes in Trauma-Informed Parenting Interventions after Violence Exposure

Over half of all youth are exposed to violence, which a growing body of literature suggests is associated with a broad range of negative developmental outcomes over the life course. However, best practices for supporting parenting are not widely applied to parents with children exposed to violence-related trauma. This meta-analyses seeks to synthesize the literature base of trauma-informed parenting interventions to better understand their potential impact on parenting and child outcomes. Specifically, 21 trauma-informed parenting interventions were identified that quantitatively assessed intervention effects on parenting and child outcomes. Six meta-analyses were conducted to assess intervention effects on (1) positive parenting practices, (2) negative parenting practices, (3) parenting stress, (4) children's internalizing problems, (5) children's externalizing problems, and (6) trauma symptoms, respectively. Moderate to large effect sizes were found for positive parenting practices (d = 0.62) as well as child internalizing problems, externalizing problems, and trauma symptoms (d = 0.48-0.59). Validity tests indicated robust findings for positive parenting and for all child outcomes. Additional moderator analyses support the importance of informed intervention design, showing differential findings by trauma type as well as by duration of the intervention. These findings indicate the value of evidence-based parenting interventions for violence-related trauma and support models of trauma-informed care that situate treatment in the broader social context, particularly the family. Results are discussed with respect to which parenting practices hold the most promise for supporting children exposed to violence-related trauma.

Efficacy of the Aussie Optimism Program: Promoting Pro-social Behavior and Preventing Suicidality in Primary School Students. A Randomised-Controlled Trial

The efficacy of an enhanced version of the Aussie Optimism Program (AOP) was investigated in a cluster randomized controlled trial. Grade 6 students aged 10-11 years of age (N = 2288) from 63 government primary schools in Perth, Western Australia, participated in the pre, post, and follow-up study. Schools were randomly assigned to one of three conditions: Aussie Optimism with teacher training, Aussie Optimism with teacher training plus coaching, or a usual care condition that received the regular Western Australian Health Education Curriculum. Students in the Aussie Optimism conditions received 20, 1-h lessons relating to social and interpersonal skills and optimistic thinking skills over the last 2 years of primary school. Parents in the active conditions received a parent information booklet each year, plus a self-directed program in Grade 7. Students and parents completed the Extended Strengths and Difficulties Questionnaire. Students who scored in the clinical range on the Emotional Symptoms Scale were given The Diagnostic Interview for Children and Adolescents IV, to assess suicidal ideation and behavior, and depressive and anxiety disorders. Results indicated that Aussie Optimism with teacher training plus coaching was associated with the best outcomes: a significant increase in student-reported pro-social behavior from pre-test to post-test 1 (maintained at post-test 2) and significantly lower incidence rates from suicidal ideation at post-test 2 and follow-up. No significant intervention effects on anxiety and depressive disorders, and total difficulties were reported. These findings suggest that the AOP with teacher training along with coaching may have the potential to positively impact on suicidality and pro-social behavior in the pre-adolescent years.

Development of a Single-Session, Transdiagnostic Preventive Intervention for Young Adults at Risk for Emotional Disorders

Cognitive-behavioral prevention programs have demonstrated efficacy in reducing subclinical symptoms of anxiety and depression, and there is some evidence to suggest that they can lower the risk of future disorder onset. However, existing interventions tend to be relatively lengthy and target specific disorders or problem areas, both of which limit their potential for widespread dissemination. To address these limitations, we aimed to develop a single-session, transdiagnostic preventive intervention based on the Unified Protocol for Transdiagnostic Treatment of Emotional Disorders for young adults at risk for developing anxiety and/or depressive disorders within a college setting. Results from this proof-of-concept study indicated that the intervention was viewed as highly satisfactory and acceptable. The intervention also was successful at delivering adaptive emotion management skills in its 2-hr workshop format. Future studies evaluating the efficacy of this novel transdiagnostic, emotion-focused prevention program are warranted.

Treatment and Prevention of Depression and Anxiety in Youth: Test of Cross-Over Effects

Anxiety and depression are highly comorbid and share several common etiological processes. Therefore, it may be more efficient to develop interventions that treat or prevent these problems together rather than as separate entities. The present meta-analytic review examined whether interventions for children and adolescents that explicitly targeted either anxiety or depression showed treatment specificity or also impacted the other outcome (i.e. cross-over effects). We addressed this question both within the same type of study (i.e. treatment, prevention) and across study types. Only randomized controlled trials (RCTs) that assessed both constructs with dimensional measures were included in this review. For treatment studies, RCTs targeting anxiety (n = 18) showed significant effects on both anxious and depressive symptoms, although more strongly on anxiety than depression; similarly, RCTs treating depression (n = 9) yielded significant effects on both depressive and anxious symptoms, but stronger effects on depression than anxiety. Thus, there were cross-over effects in treatments purportedly targeting either anxiety or depression, and also treatment specificity, such that larger effects were seen for the target problem at which the treatment was aimed. Anxiety prevention studies (n = 14) significantly affected anxious, but not depressive symptoms, indicating no cross-over effect of anxiety prevention trials on depression. For depression prevention studies (n = 15), the effects were not significant for either depressive or anxiety symptoms, although the effect was significantly larger for depressive than for anxious symptoms. Post-hoc analyses revealed that the effect on depressive symptoms was significant in depression preventions trials of targeted but not universal samples. Implications for transdiagnostic interventions are discussed.

A Randomized Controlled Trial to Test the Effectiveness of an Immersive 3D Video Game for Anxiety Prevention among Adolescents

Adolescent anxiety is debilitating, the most frequently diagnosed adolescent mental health problem, and leads to substantial long-term problems. A randomized controlled trial (n = 138) was conducted to test the effectiveness of a biofeedback video game (Dojo) for adolescents with elevated levels of anxiety. Adolescents (11–15 years old) were randomly assigned to play Dojo or a control game (Rayman 2: The Great Escape). Initial screening for anxiety was done on 1,347 adolescents in five high schools; only adolescents who scored above the “at-risk” cut-off on the Spence Children Anxiety Survey were eligible. Adolescents’ anxiety levels were assessed at pre-test, post-test, and at three month follow-up to examine the extent to which playing Dojo decreased adolescents’ anxiety. The present study revealed equal improvements in anxiety symptoms in both conditions at follow-up and no differences between Dojo and the closely matched control game condition. Latent growth curve models did reveal a steeper decrease of personalized anxiety symptoms (not of total anxiety symptoms) in the Dojo condition compared to the control condition. Moderation analyses did not show any differences in outcomes between boys and girls nor did age differentiate outcomes. The present results are of importance for prevention science, as this was the first full-scale randomized controlled trial testing indicated prevention effects of a video game aimed at reducing anxiety. Future research should carefully consider the choice of control condition and outcome measurements, address the potentially high impact of participants’ expectations, and take critical design issues into consideration, such as individual- versus group-based intervention and contamination issues.

Specificity of Incident Diagnostic Outcomes in Patients at Clinical High Risk for Psychosis

It is not well established whether the incident outcomes of the clinical high-risk (CHR) syndrome for psychosis are diagnostically specific for psychosis or whether CHR patients also are at elevated risk for a variety of nonpsychotic disorders. We collected 2 samples (NAPLS-1, PREDICT) that contained CHR patients and a control group who responded to CHR recruitment efforts but did not meet CHR criteria on interview (help-seeking comparison patients [HSC]). Incident diagnostic outcomes were defined as the occurrence of a SIPS-defined psychosis or a structured interview diagnosis from 1 of 3 nonpsychotic Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) groups (anxiety, bipolar, or nonbipolar mood disorder), when no diagnosis in that group was present at baseline. Logistic regression revealed that the CHR vs HSC effect did not vary significantly across study for any emergent diagnostic outcome; data from the 2 studies were therefore combined. CHR (n = 271) vs HSC (n = 171) emergent outcomes were: psychosis 19.6% vs 1.8%, bipolar disorders 1.1% vs 1.2%, nonbipolar mood disorders 4.4% vs 5.3%, and anxiety disorders 5.2% vs 5.3%. The main effect of CHR vs HSC was statistically significant (OR = 13.8, 95% CI 4.2-45.0, df = 1, P < .001) for emergent psychosis but not for any emergent nonpsychotic disorder. Sensitivity analyses confirmed these findings. Within the CHR group emergent psychosis was significantly more likely than each nonpsychotic DSM-IV emergent disorder, and within the HSC group emergent psychosis was significantly less likely than most emergent nonpsychotic disorders. The CHR syndrome is specific as a marker for research on predictors and mechanisms of developing psychosis.

Prevention of generalized anxiety disorder using a web intervention, iChill: randomized controlled trial

Background

Generalized Anxiety Disorder (GAD) is a high prevalence, chronic disorder. Web-based interventions are acceptable, engaging, and can be delivered at scale. Few randomized controlled trials evaluate the effectiveness of prevention programs for anxiety, or the factors that improve effectiveness and engagement.

Objective

The intent of the study was to evaluate the effectiveness of a Web-based program in preventing GAD symptoms in young adults, and to determine the role of telephone and email reminders.

Methods

A 5-arm randomized controlled trial with 558 Internet users in the community, recruited via the Australian Electoral Roll, was conducted with 6- and 12-month follow-up. Five interventions were offered over a 10-week period. Group 1 (Active website) received a combined intervention of psycho-education, Internet-delivered Cognitive Behavioral Therapy (ICBT) for anxiety, physical activity promotion, and relaxation. Group 2 (Active website with telephone) received the identical Web program plus weekly telephone reminder calls. Group 3 (Active website with email) received the identical Web program plus weekly email reminders. Group 4 (Control) received a placebo website. Group 5 (Control with telephone) received the placebo website plus telephone calls. Main outcome measures were severity of anxiety symptoms as measured by the GAD 7-item scale (GAD-7) (at post-test, 6, and 12 months). Secondary measures were GAD caseness, measured by the Mini International Neuropsychiatric Interview (MINI) at 6 months, Centre for Epidemiologic Studies-Depression scale (CES-D), Anxiety Sensitivity Index (ASI), Penn State Worry Questionnaire (PSWQ), and Days out of Role.

Results

GAD-7 symptoms reduced over post-test, 6-month, and 12-month follow-up. There were no significant differences between Group 4 (Control) and Groups 1 (Active website), 2 (Active website with telephone), 3 (Active website with email), or 5 (Control with telephone) at any follow-up. A total of 16 cases of GAD were identified at 6 months, comprising 6.7% (11/165) from the Active groups (1, 2, 3) and 4.5% (5/110) from the Control groups (4, 5), a difference that was not significant. CES-D, ASI, and PSWQ scores were significantly lower for the active website with email reminders at post-test, relative to the control website condition.

Conclusions

Indicated prevention of GAD was not effective in reducing anxiety levels, measured by GAD-7. There were significant secondary effects for anxiety sensitivity, worry, and depression. Challenges for indicated prevention trials are discussed.

Trial Registration

International Standard Randomized Controlled Trial Number (ISRCTN): 76298775; http://www.controlled-trials.com/ISRCTN76298775 (Archived by WebCite at http://www.webcitation.org/6S9aB5MAq).

Preventive intervention for anxious preschoolers and their parents: strengthening early emotional development

The high prevalence and early onset of anxiety disorders have inspired innovative prevention efforts targeting young at-risk children. With parent-child prevention models showing success for older children and adolescents, the goal of this study was to evaluate a parent-child indicated preventive intervention for preschoolers with mild to moderate anxiety symptoms. Sixteen children (ages 3-5) and at least one of their parents participated in Strengthening Early Emotional Development (SEED), a new 10-week intervention with concurrent groups for parents and children. Outcome measures included clinician-rated and parent-rated assessments of anxiety symptoms, as well as measures of emotion knowledge, parent anxiety, and parental attitudes about children's anxiety. Participation in SEED was associated with reduced child anxiety symptoms and improved emotion understanding skills. Parents reported decreases in their own anxiety, along with attitudes reflecting enhanced confidence in their children's ability to cope with anxiety. Reductions in child and parent anxiety were maintained at 3-month follow-up. Findings suggest that a parent-child cognitive-behavioral preventive intervention may hold promise for young children with mild to moderate anxiety. Improvements in parent anxiety and parental attitudes may support the utility of intervening with parents. Fostering increased willingness to encourage their children to engage in new and anxiety-provoking situations may help promote continued mastery of new skills and successful coping with anxiety.

Efficacy of a prevention program for postpartum obsessive-compulsive symptoms

Obsessive-Compulsive Disorder (OCD) has emerged as a common and impairing postpartum condition. Prospective studies have identified psychological vulnerabilities for the emergence of postpartum obsessive-compulsive symptoms (OCS), including general anxiety symptoms, pre-existing OCS, and specific cognitive distortions. The identification of these factors makes feasible the development of prevention programs that could reduce the impact of postpartum OCS. The present investigation examined a cognitive-behavioral prevention program using a randomized, double blind, controlled trial. Expecting mothers in their 2nd or 3rd trimester with an empirically established, malleable risk factor for postpartum OCS received either the prevention program (N=38) or a credible control program (N=33), both of which were incorporated into traditional childbirth education classes. Results revealed that at 1 month, 3 months, and 6 months postpartum, the prevention program was associated with significantly lower levels of obsessions and compulsions than was the control condition (all p's<0.05). Group differences remained significant even after controlling for baseline OCS and depression symptoms. Those in the prevention condition also reported decreasing levels of cognitive distortions, in contrast to the control condition (p's<0.05). Results support the potential utility of incorporating a CBT-based OCS prevention program into childbirth education classes.

Prevention of anxiety disorders

Research into the prevention of anxiety has increased dramatically in the past few years. Prevention programs have been directed at broad, nonspecific anxiety and at more specific anxiety types, such as panic disorder and post-traumatic stress disorder. Prevention of anxiety is still a relatively new field, but there has been a recent surge of literature reporting on different prevention programs. Universal prevention trials have shown modest but promising results, and school-based programs offered to all students also help to reduce stigmatization and common barriers to accessing treatment (eg, time, location, and cost). In contrast, targeted programs tend to show somewhat larger effects but rely on identification of relevant populations. Specific programs for the prevention of panic disorder and post-traumatic stress disorder have also demonstrated some preliminary success. This paper reviews the recent studies of prevention of anxiety and discusses several key issues, specifically (1) identification of at-risk participants for prevention programs, (2) motivation for participation, (3) optimal age for intervention, and (4) who should deliver the program.

A meta-analysis of anxiety symptom prevention with cognitive-behavioral interventions

This meta-analysis assessed efficacy of cognitive-behavioral interventions in preventing anxiety symptoms. A systematic review identified 15 independent pretest-posttest randomized or quasi-randomized efficacy trials for analysis. At posttest, intervention groups demonstrated significantly greater symptom reduction compared to control groups resulting in weighted mean effect sizes (Hedges' g) of 0.25 for general anxiety, 0.24 for disorder-specific symptoms, and 0.22 for depression after the removal of outliers. These effects appeared to diminish over 6- and 12-month follow-up. Exploratory moderator analyses indicated that individually administered media interventions were more effective than human-administered group interventions at preventing general anxiety and depression symptoms. Implications of current findings are discussed with attention to existing gaps in the literature.

The Prevention of Depression and Anxiety in a Sample of High-Risk Adolescents: A Randomized Controlled Trial

This study investigated the efficacy of cognitive behavioural therapy (CBT) techniques in preventing depression and anxiety in a group of adolescent high school students with elevated risk for developing emotional disorders. Students were screened using a measure of depression severity and clinical interview. Following screening procedures, students at risk for, but not currently diagnosed with, depression were randomly assigned to one of two intervention groups: a CBT ( n = 25) or an active control group ( n = 21). Assessment measures were administered before treatment, after treatment, and at 3- and 6-month follow-up. Both groups exhibited significant improvements in mood symptomatology and self-esteem outcomes over time. Significant differences between groups were not observed at posttreatment and two follow-up points of assessment. The efficacy of CBT techniques was also examined using a “benchmarking” strategy. The limitations of this study and future research directions are discussed.

Premenstrual distress predicts panic-relevant responding to a CO2 challenge among young adult females

The current study examined the incremental validity of self-reported premenstrual distress in predicting panic responsivity (self-reported panic symptoms and skin conductance response frequency; SCR) following inhalation of 10% CO(2)-enriched air. A community sample of young adult women (n=46) completed questionnaires assessing substance use patterns, premenstrual symptoms and distress, and anxiety sensitivity and underwent a laboratory biological challenge procedure (4-min 10% CO(2)-enriched air inhalation). As hypothesized, higher premenstrual distress scores significantly predicted greater self-reported panic symptoms following the CO(2) challenge above and beyond other theoretically relevant variables (anxiety sensitivity, cigarette use, and alcohol consumption). In predicting SCR, premenstrual distress exhibited only a trend towards statistical significance. These findings provide preliminary evidence that premenstrual symptoms may serve as a potential risk factor to experience more intense panic symptoms in response to perturbations in bodily sensations.

Anxiety sensitivity and CO2 challenge anxiety during recovery: differential correspondence of arousal and perceived control

The relations between changes in arousal and perceived control with changes in anxiety-related distress during a 10-min recovery period after exposure to 10% CO(2)-enriched air was examined among community participants (N=47) high (n=23) and low (n=24) in anxiety sensitivity (AS). Rate of decline in arousal was significantly positively associated with rate of decline in anxiety among high and low AS participants when controlling for valence. Rate of increase in perceived control was significantly negatively related to rate of decline in anxiety in the high AS group but not in the low AS group when controlling for valence. These findings suggest that associations between arousal, perceived control, and anxiety-related recovery from a panic-relevant episode of abrupt increases in bodily arousal differ as a function of pre-existing fears of anxiety-related symptoms (i.e., AS). Implications of these findings for disorders associated with elevated AS are discussed.

Efficacy of a school-based primary prevention program for coping with exposure to political violence

A paradigm conceptualizing resilience as factors moderating between political violence exposure and psychological distress administered in a 7-year research project yielded a profile of factors promoting Israeli children's coping in conflict conditions. Three factors — social support mobilization, selfefficacy, and meaning attribution — were incorporated into a school-based primary intervention program. In a repeated measures design, the study assessed pre to post-test modifications in the three resilience factors and psychological distress in a primary and control intervention condition and the interaction of actual political violence exposure on distress reduction. Results validated modification only of the mobilization of support factor, but nonetheless confirmed the primary program's efficacy in moderating psychological distress particularly among children with low actual political violence exposure, who showed greater distress increases in the control condition. Findings reinforce the educational system's role in promoting resilience among children in conflict environments.

Cardiophobia: a critical analysis

Cardiophobia, a clinical syndrome that affects hundreds of thousands of individuals in the USA, is characterized by abrupt, recurrent sensations and pain in the chest in the absence of physical pathology. This conceptual article seeks to address the significance of cardiophobia in western culture and to distinguish it from related disorders. In addition, a model of cardiophobia that highlights the role of heart-focused anxiety and interoceptive conditioning in the generation of limited-symptom panic attacks and acute chest pain is presented and vulnerability factors for cardiophobia are discussed. Future research directions relevant to the assessment and treatment of this clinically significant phenomenon are reviewed.

A comparative evaluation of panicogenic processes and quality of life in a sample of non-clinical panickers and age and sex matched non-panicking controls

Contemporary models of panic attacks suggest that panic problems exist on a continuum and highlight the need to understand what differentiates persons who have never had a panic attack versus persons who have had panic attacks but have not yet developed panic disorder (i.e., non-clinical panickers). Accordingly, the present study evaluated several theoretically-relevant factors that were expected to distinguish a sample of (conservatively defined) non-clinical panickers (n=72) from an age and sex-matched comparison sample of non-panicking controls (n=72). As expected, panickers were characterized by higher levels of anxiety sensitivity, perceived uncontrollability, and state and trait anxiety relative to their non-panic counterparts. Moreover, higher levels of trait anxiety emerged as a predictor of poorer quality of life among panickers. Results are considered within the context of biopsychosocial continuum models of panic attacks and panic disorder and future directions for research are suggested.

Anxiety Sensitivity Amelioration Training (ASAT): a longitudinal primary prevention program targeting cognitive vulnerability

Fear of arousal symptoms, often referred to as anxiety sensitivity (AS) appears to be associated with risk for anxiety pathology and other Axis I conditions. Findings from a longitudinal prevention program targeting AS are reported. Participants (n=404) scoring high on the Anxiety Sensitivity Index (ASI) were randomly assigned to receive a brief intervention designed to reduce AS (Anxiety Sensitivity Amelioration Training (ASAT)) or a control condition. Participants were followed for up to 24 months. Findings indicate that ASAT produced greater reductions in ASI levels compared with the control condition. Moreover, reductions were specific to anxiety sensitivity relative to related cognitive risk factors for anxiety. ASAT also produced decreased subjective fear responding to a 20% CO(2) challenge delivered postintervention. Data from the follow-up period show a lower incidence of Axis I diagnoses in the treated condition though the overall group difference was not statistically different at all follow-up intervals. Overall, findings are promising for the preventative efficacy of a brief, computer-based intervention designed to decrease anxiety sensitivity.

Risk factor research and prevention for anxiety disorders: introduction to the special series on risk and prevention of anxiety pathology

In relation to treatment-related research in the United States, there is relatively little systematic effort focused on the combination of risk and prevention for anxiety pathology. This article broadly discusses risk factor research and prevention program development for anxiety psychopathology. The authors also specifically discuss papers in this special issue that are focused on these topics. Risk factor research should be used by clinical researchers to inform prevention programs, and reciprocally, prevention knowledge should be effectively utilized to drive new, clinically focused risk factor research.

Anxiety sensitivity: prospective prediction of panic attacks and Axis I pathology

Emerging evidence suggests that anxiety sensitivity (AS) predicts subsequent development of anxiety symptoms and panic attacks. However, evidence regarding whether AS serves as a premorbid risk factor for the development of clinical syndromes is lacking. The primary aim of the present study was to determine whether AS acts as a vulnerability factor in the pathogenesis of psychiatric diagnoses. A large nonclinical sample of young adults (N=404) was prospectively followed over two years. The Anxiety Sensitivity Index (ASI: Reiss S, Peterson RA, Gursky DM, McNally RJ. Anxiety sensitivity, anxiety frequency, and the prediction of fearfulness. Behaviour Research and Therapy 1986; 24: 1-8.) and trait anxiety served as predictors. Consistent with prior reports, AS predicted the development of spontaneous panic attacks in those with no history of panic. Importantly, AS was found to predict the incidence of anxiety disorder diagnoses and overall Axis I diagnoses in those with no history of Axis I diagnoses at study entry. These are the first data to provide strong prospective evidence for AS as a risk factor in the development of anxiety disorders.

Associations between age of onset and lifetime history of panic attacks and alcohol use, abuse, and dependence in a representative sample

OBJECTIVE

The present investigation evaluated associations between lifetime panic attacks and lifetime alcohol use, abuse, and dependence. Specifically, the relations between lifetime panic attacks and alcohol use, abuse, and dependence were examined after controlling for theoretically relevant variables of comorbid psychopathology and polysubstance use.

DESIGN AND SETTING

Data for this study were obtained from a large statewide survey, the Colorado Social Health Survey. Participants were contacted using randomly sampled household addresses (response rate was 72%) and interviews took place in participants' homes.

PARTICIPANTS

The study consisted of a representative sample of the Colorado general adult population (n = 4,745; 52% women).

MAIN OUTCOME MEASURES

The Diagnostic Interview Schedule (American Psychiatric Association. Diagnostic and Statistical Manual of Mental Disorders [3rd ed]. Washington [DC]: Author. 1980) was administered to obtain Axis I diagnoses.

RESULTS

After controlling for theoretically relevant variables of comorbid psychopathology and polysubstance use, a lifetime history of panic attacks was significantly associated with alcohol dependence but not alcohol use or abuse. In addition, among participants reporting a lifetime history of both panic attacks and alcohol abuse or dependence, the number of participants for whom panic attacks developmentally preceded the onset of alcohol use problems was significantly greater (85.5%) than the number of participants for whom alcohol use problems preceded the onset of panic attacks (13.4%) or the number of participants for whom these problems developed at the same age (2.2%).

CONCLUSIONS

These data suggest panic attacks, particularly of early onset, may serve as a risk marker for alcohol dependence.

Neuroticism moderates the effect of maximum smoking level on lifetime panic disorder: a test using an epidemiologically defined national sample of smokers

The present study evaluated a moderational model of neuroticism on the relation between smoking level and panic disorder using data from the National Comorbidity Survey. Participants (n=924) included current regular smokers, as defined by a report of smoking regularly during the past month. Findings indicated that a generalized tendency to experience negative affect (neuroticism) moderated the effects of maximum smoking frequency (i.e., number of cigarettes smoked per day during the period when smoking the most) on lifetime history of panic disorder even after controlling for drug dependence, alcohol dependence, major depression, dysthymia, and gender. These effects were specific to panic disorder, as no such moderational effects were apparent for other anxiety disorders. Results are discussed in relation to refining recent panic-smoking conceptual models and elucidating different pathways to panic-related problems.

Anxiety Sensitivity Taxonicity: a Concurrent Test of Cognitive Vulnerability for Post‐Traumatic Stress Symptomatology Among Young Adults

This study evaluated the anxiety sensitivity taxon using the 16-item Anxiety Sensitivity Index in relation to 2 criteria relevant to post-traumatic stress disorder; post-traumatic stress disorder symptom severity as indexed by the Post-Traumatic Diagnostic Scale, and post-traumatic cognitions as indexed by the Post-Traumatic Cognitions Inventory. Taxometric analyses of data collected from 331 young adults indicated that the latent structure of anxiety sensitivity was taxonic with an estimated base-rate range of 11-12%. As predicted, an 8-item Anxiety Sensitivity Index Taxon Scale accounted for significant variance above and beyond that accounted for by negative affectivity and the full-scale Anxiety Sensitivity Index total score in terms of both criteria. Moreover, after accounting for variance explained by the full-scale Anxiety Sensitivity Index total score and negative affectivity, the sum score for the 8 Anxiety Sensitivity Index items not included in the Anxiety Sensitivity Index Taxon Scale was associated with significant variance in these same dependent measures, but the relation was in the opposite direction to that predicted by theory. These findings are discussed in terms of theoretical and clinical implications for the study of anxiety sensitivity and post-traumatic stress disorder vulnerability.

Health Perception Is a Unique Predictor of Anxiety Symptoms in Non‐Clinical Participants

This study evaluated the role of perceived health in predicting anxiety symptoms, bodily vigilance and agoraphobic cognitions among 71 individuals (30 females; mean age 19.9 years, SD=3.1) without a psychiatric history, including non-clinical panic attacks. Results indicated that, relative to anxiety sensitivity, perceived health was a distinct construct that incrementally predicted bodily-oriented catastrophic thinking (8% of unique variance) and heart-focused anxiety (13% of unique variance). Moreover, perceived health significantly incrementally predicted anxious arousal symptoms (9% of unique variance). Results are discussed in relation to the role of perceived health as a cognitive vulnerability factor for anxiety-related problems.