Moderators and mediators among panic, agoraphobia symptoms, and suicidal ideation in patients with panic disorder

Investigating Relations Between the Symptoms of Panic, Agoraphobia, and Suicidal Ideation: The Significance of Comorbid Depressive Symptoms in Veterans with Panic Disorder

Although panic disorder has been frequently associated with increased suicidal ideation and behaviors, there are multiple explanations for this association in the literature. For example, some research has demonstrated panic disorder symptoms to mediate agoraphobia and suicidal ideation, while other researchers have hypothesized that comorbid depression symptoms contribute to suicidal ideation across anxiety disorders. Of note, none of these studies were completed in veterans, a population at higher risk for suicide relative to civilian samples. The present study investigated relations between the symptoms of panic, agoraphobia, depression, and suicidal ideation in 58 veterans diagnosed with panic disorder via correlations, hierarchical regression, and exploratory path analyses. Multiple models were investigated based on prior research. The final path model demonstrated that symptoms of panic disorder predicted agoraphobia symptoms, with agoraphobia predicting symptoms of depression. Symptoms of depression, then, predicted suicidal ideation. Discussion of the findings related to comorbid depressive symptoms highlight considerations for the assessment and treatment practices for panic disorder, with a particular focus on veterans receiving care within Veterans Affairs Healthcare System.

Functional and structural social support in DSM-5 mood and anxiety disorders: A population-based study

BACKGROUND

Social support has been found to be a key correlate of many psychiatric disorders including several mood and anxiety disorders. However, research on social support is largely investigated in individual disorders, despite the high co-occurrence of these diagnoses, and has typically relied on pre-DSM-5 diagnostic criteria. Additionally, differences in structural and functional social support are rarely explored. Thus, the present study investigated the unique association between these two aspects of social support and past-year DSM-5 mood and anxiety disorders while adjusting for comorbidity and socio-demographic variables.

METHODS

Multivariate regression and relative weights analyses were conducted to determine the association of functional and structural social support with these disorders in the National Epidemiologic Survey on Alcohol and Related Conditions consisting of 36,309 participants.

RESULTS

Results indicated depression, bipolar I, social anxiety, generalized anxiety, and posttraumatic stress disorder were significantly associated with functional support, while depression and agoraphobia were uniquely associated with structural support. Major depression and persistent depression were the two most important predictors of functional social support.

LIMITATIONS

The current study utilized cross-sectional data and does not allow for causal or directional conclusions. Further, additional studies with diverse samples are needed to determine the generalizability of the current results.

CONCLUSIONS

This study highlights differences in functional and structural social support in various disorders and explores how this varies when accounting for comorbidity. A deeper understanding of how specific aspects of social support relate to individual psychiatric disorders could inform future prevention and treatment efforts.

A comprehensive model of predictors of suicide attempt in individuals with panic disorder: Results from a national 3-year prospective study

OBJECTIVE

People with panic disorder are at increased risk of suicide. Multiple factors influence their risk suggesting a need to combine them into an integrative model to develop more effective suicide prevention strategies for this population. In this report, we sought to build a comprehensive model of the 3-year risk of suicide attempt in individuals with panic disorder using a longitudinal nationally representative study, the National Epidemiologic Survey on Alcohol and Related Conditions (NESARC; wave 1, 2001-2002; wave 2, 2004-2005).

METHOD

We used structural equation modeling to simultaneously examine effects of six broad groups of clinical factors previously identified as potential predictors of suicide attempt in adults with panic disorder: 1) severity of panic disorder, 2) severity of comorbidity, 3) prior history of suicide attempt, 4) family history of psychiatric disorders, 5) sociodemographic characteristics and 6) treatment-seeking behavior.

RESULTS

The 3-year prevalence rate of suicide attempt was 4.6%. A general psychopathology factor, lower physical health-related quality of life, prior suicide attempt and a greater number of stressful life events at baseline significantly and independently predicted suicide attempt between the two waves (p < .05). R-square of the models ranged from 0.47 to 0.50.

CONCLUSION

This model may help inform future research and identify high-risk individuals among adults with panic disorder.

Sex differences in the association between marital status and the risk of cardiovascular, cancer, and all-cause mortality: a systematic review and meta-analysis of 7,881,040 individuals

Purpose

To ascertain whether sex differences exist in the relationship between marital status and cardiovascular diseases (CVD), coronary heart disease (CHD), cancer and all-cause mortality in the general population and to explore the potential effect of age, location, the duration of follow-up and publication years on these outcomes.

Methods

A systematic search was performed in PubMed and EMBASE from inception through to April 2018 and review of references to obtain sex-specific relative risks and their 95% confidence intervals. These were used to derive the women-to-men ratio of RRs (RRR) and 95% CI for each study. RRs and RRRs for each outcome were then pooled using random effects inverse-variance weighted meta-analysis.

Results

Twenty-one studies with 7,891,623 individuals and 1,888,752 deaths were included in the meta-analysis. Compared with married individuals, being unmarried was significantly associated with all-cause, cancer, CVD and coronary heart disease mortalities for both sexes. However, the association with CVD and all-cause mortality was stronger in men. Being divorced/separated was associated with a higher risk of all-cause mortality in men and a stronger risk of cancer and CVD mortality. The pooled ratio for women versus men showed 31 and 9% greater risk of stroke mortality and all-cause mortality associated with never married in men than in women.

Conclusions

Being unmarried conferred higher risk of stroke and all-cause mortality for men than women. Moreover, divorced/separated men had higher risk of cancer mortality and CVD mortality. Further studies are warranted to clarify the biological, behavioral, and/or social mechanisms involved in sex differences by these associations.

Predictors of Passive and Active Suicidal Ideation and Suicide Attempt Among Older People: A Study in Tertiary Care Settings in Thailand

PURPOSE

This study compared predictors of passive suicidal ideation (SI), active SI, and suicide attempt (SA) among elderly Thai patients in tertiary care settings.

PATIENTS AND METHODS

Psychiatric diagnoses and suicidality of 803 older people were assessed using the Mini-International Neuropsychiatric Interview and the Structured Clinical Interview for DSM-IV-TR. All participants completed the Montreal Cognitive Assessment, multidimensional scale of perceived social support (MSPSS), 15-item Thai geriatric depression scale (TGDS-15), 10-item perceived social scale and the Core Symptoms Index. The chi-square test, t-test and ANOVA were used for bivariate analysis of predictors of specific suicidality types. Multiple logistic regression was used to determine the predictors for each type of suicidality.

RESULTS

The patients' mean age was 69.24 ± 6.90 years, and the majority were female (69.74%). Passive SI, active SI and SA were found among 20.42%, 3.74% and 2.37%, respectively, of the patients. Major depressive disorder (MDD) was a predictor of both passive and active SI (OR = 2.06 and 3.74, respectively). Other predictors of passive SI included hypomania (OR = 8.27) and positive score on the TGDS-15 (OR = 1.29). Predictors of active SI included agoraphobia (OR = 6.84) and hypomania (OR = 7.10). Predictors of SA included a family history of alcohol dependence (OR = 14.16), a history of depression (OR = 4.78) and agoraphobia (OR = 19.89). Surprisingly, hypertension and self-reported anxiety symptoms were protective factors for passive SI (OR = 0.51 and 0.85, respectively). Likewise, MSPSS was a protective factor for SA (OR = 0.90).

CONCLUSION

Predictors of each type of suicidality differed. MDD was the main predictor for SI; however, agoraphobia and poor perceived social support were more pronounced among individuals with SA. Further investigation, especially in longitudinal fashion, should be warranted.

Bipolar disorder comorbidity in patients with obsessive-compulsive disorder: Prevalence and predictors

BACKGROUND

Patients with obsessive-compulsive disorder (OCD) often present with comorbidities, mainly anxiety and affective disorders, which may influence OCD course, help-seeking and treatment response. Some authors have studied bipolar disorder (BD) comorbidity in patients with OCD, but usually in small samples. The objective was to estimate the lifetime prevalence of BD in a large clinical sample of OCD patients, and to compare demographic and clinical features of patients with and without BD comorbidity.

METHOD

This cross-sectional study with 955 adult OCD patients from the Brazilian Research Consortium on Obsessive-Compulsive Spectrum Disorders (C-TOC) used several assessment instruments, including the Yale-Brown Obsessive-Compulsive Scale, the Dimensional Yale-Brown Obsessive-Compulsive Scale, the Beck Depression and Anxiety Inventories, and the Structured Clinical Interview for DSM-IV Axis I Disorders. Descriptive and bivariate analyses were followed by logistic regression.

RESULTS

The lifetime prevalence of BD was 7.75% (N = 74). The variables that were independently associated with BD comorbidity were: panic disorder with agoraphobia, impulse control disorders, and suicide attempts.

LIMITATIONS

The cross-sectional design does not permit causal inferences; the external validity may be limited, as the participants were from tertiary services. Despite the large sample size, some analyses may have been underpowered due to the relatively low prevalence of the outcome and of some explanatory variables.

CONCLUSIONS

Patients with OCD comorbid with BD have some clinical features indicative of greater severity, including higher suicide risk, and require a careful therapeutic approach for the appropriate treatment of both disorders.

The relationship between impulsivity and panic disorder-agoraphobia: The role of affective temperament

There are opinions regarding that impulsivity may play a role in the pathogenesis of neuropsychiatric disorders. The aim of this study was to investigate the relationship between impulsivity and panic disorder (PD) in the patient group, to compare impulsivity and affective temperamental traits between patients and healthy controls and to investigate whether there is a relationship between impulsivity and affective temperamental traits. Participants comprised 70 patients with PD and 58 healthy volunteers. The Panic Agoraphobia Scale (PAS), the Barratt Impulsiveness Scale (BIS-11) and the Temperament Evaluation of Memphis, Pisa, Paris, San Diego Autoquestionnaire (TEMPS-A) were applied. Patients have significantly higher scores in affective temperament (except hyperthymic) and attentional impulsiveness subscales than the healthy controls. Positive and negative correlations were found between some PAS and BIS-11 scores as well as correlations between especially cyclothymic, hyperthymic, irritable and anxious subscale scores of the TEMPS-A and the BIS-11 scores in the patient group. The results of this study indicate a relationship between impulsivity and PD. The correlations found between affective temperament dimensions and impulsivity suggest how affective temperamental traits may influence different impulsivity dimensions.

Prevalence and Correlates of Suicidal Thoughts and Behaviors among North Korean Defectors

OBJECTIVE

Despite the increasing number of North Korean defectors, research on their mental health conditions and suicidal thoughts and behaviors has not been conducted systematically. We examined the prevalence and risk factors of suicidal thoughts and behaviors in North Korean defectors.

METHODS

This study focused on 300 North Korean defectors recruited from regional resettlement centers in South Korea. In-person interviews based on the North Korean version of the Composite International Diagnostic Interview were conducted to diagnose mental disorders and assess suicidal thoughts and behaviors. Logistic regression analyses were performed to evaluate the association between suicidal thoughts and behaviors and socio-demographic variables, and DSM-IV mental disorders.

RESULTS

Lifetime prevalence of suicidal ideation, plans, and attempts were 28.3, 13.3, and 17.3%, respectively. Female sex (OR: 2.0, 95% CI: 1.0-3.9), presence of health problems in the past year (2.6, 95% CI: 1.4-4.6), and absence of both South Korean acquaintances (1.9, 95% CI: 1.0-3.4) and North Korean family (1.7, 95% CI: 1.0-2.9) were associated with higher odds of suicidal thoughts and behaviors, after adjusting for participant age, sex, and education. Presence of a mental disorder was associated with a significantly increased odd of suicide ideation, plan, and attempt. Of all mental disorder categories, agoraphobia had the strongest association with suicidal ideation (6.5, 95% CI: 2.0-21.6), plans (7.7, 95% CI: 2.5-23.2) and attempts (12.0, 95% CI: 3.5-40.8).

CONCLUSION

Suicidal thoughts and behaviors among North Korean defectors are higher than the general population in South Korea, especially show high rates in transit countries. Further study should focus on the changes in suicidal thoughts and behaviors according to the settlement process and early prevention.

Suicidality in Subjects With Anxiety or Obsessive-Compulsive and Related Disorders: Recent Advances

PURPOSE OF REVIEW

Historically, anxiety disorders have not been considered as important determinants of suicide, but in the last years, many works have challenged this assumption. Here, we will review the available evidence on the relationship between suicide and anxiety disorders (e.g., obsessive-compulsive disorder, post-traumatic stress disorder, generalized anxiety disorder, panic disorder, and body dysmorphic disorder), with special emphasis on findings published in the last years.

RECENT FINDINGS

Overall, anxiety disorders increase the risk of suicide. Specifically, 16% of patients with social anxiety disorder reported suicidal ideation in the previous month, and 18% of them had a history of suicide attempts. Similarly, in patients with panic disorder, suicidal ideation prevalence ranged between 17 and 32%, and 33% of them had a history of suicide attempts. Generalized anxiety disorder (GAD) was the most frequent anxiety disorder in completed suicides (present in 3% of people who committed suicide) and also subthreshold GAD was clearly linked to suicide ideation. Post-traumatic stress disorder was positively associated with suicidal ideation, and in patients with obsessive-compulsive disorder, suicide ideation rates ranged from 10 to 53% and suicide attempts from 1 to 46%. Body dysmorphic disorders presented a suicide ideation prevalence of about 80%. Suicide risk is increased in subjects with anxiety disorder. This risk is higher in the presence of comorbidities, but it is not clear whether it is independent from such comorbidities in some disorders.

Social Support and Symptom Severity Among Patients With Obsessive-Compulsive Disorder or Panic Disorder With Agoraphobia: A Systematic Review

Panic disorder with or without agoraphobia (PD/A) and obsessive-compulsive disorder (OCD) are characterized by major behavioral dysruptions that may affect patients’ social and marital functioning. The disorders’ impact on interpersonal relationships may also affect the quality of support patients receive from their social network. The main goal of this systematic review is to determine the association between social or marital support and symptom severity among adults with PD/A or OCD. A systematic search of databases was executed and provided 35 eligible articles. Results from OCD studies indicated a negative association between marital adjustment and symptom severity, and a positive association between accommodation from relatives and symptom severity. However, results were inconclusive for negative forms of social support (e.g. criticism, hostility). Results from PD/A studies indicated a negative association between perceived social support and symptom severity. Also, results from studies using an observational measure of marital adjustment indicated a negative association between quality of support from the spouse and PD/A severity. However, results were inconclusive for perceived marital adjustment and symptom severity. In conclusion, this systematic review generally suggests a major role of social and marital support in PD/A and OCD symptomatology. However, given diversity of results and methods used in studies, more are needed to clarify the links between support and symptom severity among patients with PD/A and OCD.

A discussion of various aspects of panic disorder depending on presence or absence of agoraphobia

OBJECTIVE

The quality of life of individuals with panic disorder and agoraphobia can be improved by the alleviation of agoraphobia. In other words, examining panic disorder in terms of whether agoraphobia is present is crucial. The current study examined panic disorder from this perspective.

METHODS

Subjects were 253 patients who met the diagnostic criteria for panic disorder (lifetime) according to the Mini International Neuropsychiatric Interview (MINI). Of those patients, 179 had agoraphobia and 74 did not. Statistical analysis was used to examine gender differences in the presence (or absence) of agoraphobia, comorbidities, and the effects of the presence of agoraphobia (severity, assessment of depression, assessment of anxiety, and personality) in these patients.

RESULTS

Results indicated gender differences in the presence (or absence) of agoraphobia. Compared to patients without agoraphobia, significantly more patients with agoraphobia were female (p<.001), and had a higher prevalence of comorbidities. Patients with agoraphobia had a higher suicide risk (p<.05), more hypomanic episodes (current) (p<.05), and more frequent episodes of social phobia (p<.05). In addition, patients with agoraphobia had more severe panic disorder and a higher level of neuroticism, sensitivity to anxiety, and trait anxiety [PDSS-J, P&A, NEO-N: p<.01, ASI, STAI (Trait Anxiety): p<.05].

CONCLUSIONS

The current findings suggest that when treating a panic disorder, diagnosing the presence of agoraphobia is extremely important.

Impulsivity in patients with panic disorder-agoraphobia: the role of cyclothymia

The relationship between Panic Disorder (PD) and impulsivity is not well explored. The present investigation aims to compare impulsivity, measured by different rating tools, in PD patients vs. healthy controls and to explore the influence of co-morbid Cyclothymic Disorder (CD) on the relationship between PD and impulsivity. Sixty-four subjects with PD and 44 matched controls underwent a diagnostic and symptomatological evaluations by the Mini Neuropsychiatric Interview (M.I.N.I) Plus 5.0; the Bech-Rafaelsen Depression and Mania Scale (BRDMS), the State-Trait Anxiety Inventory (STAI), the Hypomania Check List (HCL-32) and the Clinical Global Impression (CGI); the Questionnaire for the Affective and Anxious Temperament Evaluation of Memphis, Pisa, Paris and San Diego-Modified (TEMPS-M), the Separation Anxiety Sensitivity Index (SASI), the Interpersonal Sensitivity Symptoms Inventory (ISSI). Finally, psychometric and neurocognitive evaluations of impulsivity was carried out using the Barratt Impulsiveness Scale (BIS-11) and the Immediate and Delayed Memory Task (IMT/DMT). Subjects with PD were more impulsive than the controls in all the explored measures, reporting higher scores in symptomatological and temperamental scales. The comparison between PD patients with (Cyclo+) and without (Cyclo-) comorbid CD and controls showed that Cyclo+ are the most impulsive subjects in all the investigated measures and are characterized by the greatest symptomatological impairment, the highest scores in temperamental scales, and the highest levels of interpersonal sensitivity and separation anxiety. In our patients with PD, without lifetime comorbidity with major mood episodes, trait and state impulsivity may be related to the presence of comorbid cyclothymic mood instability.

Suicidal ideation and risk factors in primary care patients with anxiety disorders

The presence of an anxiety disorder is associated with greater frequency of suicidal thoughts and behaviors. Given the high personal and societal costs of suicidal behaviors, suicide prevention is a priority. Understanding factors present within individuals with anxiety disorders that increase suicide risk may inform prevention efforts. The aims of the present study were to examine the prevalence of suicidal ideation and behaviors, as well as factors associated with suicide risk in patients with anxiety disorders in primary care. Data from a large scale randomized controlled study were analyzed to assess prevalence of suicidal thoughts and behaviors, as well as factors associated with suicide risk. Results revealed that suicidal ideation and behaviors were relatively common in this group. When examining mental and physical health factors jointly, presence of depression, mental health-related impairment, and social support each uniquely accounted for variance in suicide risk score. Methodological limitations include cross-sectional data collection and lack of information on comorbid personality disorders. Moreover, patients included were from a clinical trial with exclusion criteria that may limit generalizability. Results highlight the complex determinants of suicidal behavior and the need for more nuanced suicide assessment in this population, including evaluation of comorbidity and general functioning.

Alexithymia, suicide risk and serum lipid levels among adult outpatients with panic disorder

To elucidate the relationships between alexithymia, suicide ideation and serum lipid levels in drug-naïve adult outpatients with a DSM-IV diagnosis of Panic Disorder (PD), 72 patients were evaluated. Measures were the Panic Attack and Anticipatory Anxiety Scale, the Toronto Alexithymia Scale (TAS-20), the Scale of Suicide Ideation (SSI) and the Montgomery Åsberg Depression Rating Scale (MADRS). Alexithymic patients showed higher scores on all rating scales and altered serum lipid levels than non-alexithymics. In the hierarchical regression model, the presence of lower HDL-C and higher VLDL-C levels and Difficulty in Identifying Feelings dimension of TAS-20 were associated with higher suicide ideation. In conclusion, alexithymic individuals with PD may show a cholesterol dysregulation that may be linked to suicide ideation. The authors discuss study limitations and future research needs.

Suicidal ideation among Métis adult men and women--associated risk and protective factors: findings from a nationally representative survey

Objective

To determine the prevalence of suicidal ideation among Métis men and women (20–59 years) and identify its associated risk and protective factors using data from the nationally representative Aboriginal Peoples Survey (2006).

Study design

Secondary analysis of previously collected data from a nationally representative cross-sectional survey.

Results

Across Canada, lifetime suicidal ideation was reported by an estimated 13.3% (or an estimated 34,517 individuals) of the total population of 20-to-59-year-old Métis. Of those who ideated, 46.2% reported a lifetime suicide attempt and 6.0% indicated that they had attempted suicide in the previous 12 months. Prevalence of suicidal ideation was higher among Métis men than in men who did not report Aboriginal identity in examined jurisdictions. Métis women were more likely to report suicidal ideation compared with Métis men (14.9% vs. 11.5%, respectively). Métis women and men had some common associated risk and protective factors such as major depressive episode, history of self-injury, perceived Aboriginal-specific community issues, divorced status, high mobility, self-rated thriving health, high self-esteem and positive coping ability. However, in Métis women alone, heavy frequent drinking, history of foster care experience and lower levels of social support were significant associated risk factors of suicidal ideation. Furthermore, a significant interaction was observed between social support and major depressive episode. Among Métis men, history of ever smoking was the sole unique associated risk factor.

Conclusion

The higher prevalence of suicidal ideation among Métis women compared with Métis men and the observed gender differences in associations with some associated risk and protective factors suggest the need for gender-responsive programming to address suicidal ideation.

Treatment of comorbid substance use and anxiety disorders: a case study

This case study of combined anxiety with both alcohol and benzodiazepine dependence illustrates key issues in presentation, differential diagnosis and management. The case is discussed from a biopsychosocial perspective with each of the discussants focusing on their particular area of experience and expertise, then the treatment package is presented in an integrated fashion. Of particular interest is how social anxiety disorder may become a significant barrier to engagement and retention, and thus outcome in persons presenting for addiction treatment, and how a treatment plan for such patients can be built.