Erica Crome

Social Phobia: Further Evidence of Dimensional Structure:

Objective: Social phobia is a common mental disorder associated with significant impairment. Current research and treatment models of social phobia rely on categorical diagnostic conceptualizations lacking empirical support. This study aims to further research exploring whether social phobia is best conceptualized as a dimension or a discrete categorical disorder. Methods: This study used three distinct taxometric techniques (mean above minus below a cut, maximum Eigen value and latent mode) to explore the latent structure of social phobia in two large epidemiological samples, using indicators derived from diagnostic criteria and associated avoidant personality traits. Results: Overall, outcomes from multiple taxometric analyses supported dimensional structure. This is consistent with conceptualizations of social phobia as lying on a continuum with avoidant personality traits. Conclusions: Support for the dimensionality of social phobia has important implications for future research, assessment, treatment, and public policy.

DSM-IV and DSM-5 social anxiety disorder in the Australian community

Objective: Current and accurate estimates of prevalence, correlates, comorbid concerns and treatment-seeking behaviours associated with disorders are essential for informing policy, clinical practice and research. The most recent snapshot of social anxiety disorder in Australia was published more than a decade ago, with significant changes to the accessibility of mental health treatment services and diagnostic measures occurring during this period. This paper aims to (i) update the understanding of social anxiety disorder, its associations and patterns of treatment-seeking behaviours in the Australian population, and (ii) explore the impact of revised diagnostic criteria detailed in the Fifth Edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-5) on prevalence estimates. Methods: The National Survey of Mental Health and Wellbeing (NSMHWB) was conducted by the Australian Bureau of Statistics in 2007, collecting information from a nationally representative random sample of 8841 Australians aged 16–85 years. The presence of social anxiety disorder diagnostic criteria and related disorders were assessed over 12 months and lifetime periods using the World Mental Health Composite International Diagnostic Interview. Results: Profiles of social anxiety disorder were consistent with previous estimates, with higher prevalence in females and younger age groups. Of the 8.4% of Australians meeting criteria for social anxiety disorder at some point in their lifetime (12-month prevalence 4.2%), a majority also experienced comorbid mental health concerns (70%). The revised performance-only specifier included in the DSM-5 was applicable to only 0.3% of lifetime cases. Just over 20% of people reporting social anxiety disorder as their primary concern sought treatment, most commonly through general practitioners. Conclusions: Social anxiety disorder continues to be prevalent in the Australian population and highly related to other disorders, yet few people experiencing social anxiety disorder seek treatment

Some new directions for research on psychological interventions for comorbid anxiety and substance use disorders

ISSUES Comorbidity between anxiety and substance use disorders is common, yet it is poorly understood and poorly treated. APPROACH Narrative literature review. PsycINFO and Medline databases were searched for clinical trials of anxiety and substance use disorders using clinical queries for 2005-2009. KEY FINDINGS There are few well-conducted treatment outcome trials for comorbid anxiety and substance use disorders. Some recent (2005-2009) outcome literature has focused on specific mechanisms (anxiety sensitivity and tension reduction alcohol expectancies) that may underlie comorbidity between anxiety and substance use disorders and may lead to more targeted intervention. IMPLICATIONS AND CONCLUSION: The research base for understanding and treating comorbid anxiety and substance use disorders needs to be broadened. In particular research is needed with a focus on: (i) specifying particular comorbid relationships between anxiety and substance use disorders; (ii) the mechanisms that may underlie and maintain those relationships; and (iii) well-conducted evaluations of treatments that target those mechanisms.

Smoking, posttraumatic stress disorder, and alcohol use disorders in a nationally representative sample of Australian men and women

BACKGROUND Posttraumatic stress disorder (PTSD) and alcohol use disorders (AUDs) often co-occur with smoking and tobacco use disorders. Each of these disorders is known to have negative health consequences and impairment independently, but little is known about the impact of their co-occurrence. The aim of the present study is to examine the prevalence, correlates, order of onset, and impact of co-occurring daily smoking, PTSD, and AUDs. METHOD The 2007 Australian National Survey of Mental Health and Wellbeing (2007 NSMHWB) was a nationally representative survey of 8841 Australians. The survey assessed for 12-month DSM-IV mental disorders; the age respondents first started smoking daily, experienced a traumatic event, or developed problems with alcohol; and self-reported mental and physical health and impairment. RESULTS There were systematic patterns of co-occurrence between daily smoking, PTSD, and AUDs. Daily smoking and problems with alcohol use tended to develop after first trauma exposure, which is broadly consistent with the self-medication hypothesis. Daily smoking, PTSD, and AUDs were also associated with additive negative effects on mental and physical health and functioning, after controlling for demographics. CONCLUSIONS Smoking, PTSD, and AUDs commonly co-occur in this nationally representative sample of Australian men and women, and this comorbidity was associated with greater severity of mental and physical health problems and impairment in several areas of functioning. This study highlights the importance of identifying and eliminating these patterns of co-occurrence, potentially through integrated interventions.

Mild to severe social fears: Ranking types of feared social situations using item response theory

Social anxiety disorder is one of the most common mental disorders, and is associated with long term impairment, distress and vulnerability to secondary disorders. Certain types of social fears are more common than others, with public speaking fears typically the most prevalent in epidemiological surveys. The distinction between performance- and interaction-based fears has been the focus of long-standing debate in the literature, with evidence performance-based fears may reflect more mild presentations of social anxiety. This study aims to explicitly test whether different types of social fears differ in underlying social anxiety severity using item response theory techniques. Different types of social fears were assessed using items from three different structured diagnostic interviews in four different epidemiological surveys in the United States (n=2261, n=5411) and Australia (n=1845, n=1497); and ranked using 2-parameter logistic item response theory models. Overall, patterns of underlying severity indicated by different fears were consistent across the four samples with items functioning across a range of social anxiety. Public performance fears and speaking at meetings/classes indicated the lowest levels of social anxiety, with increasing severity indicated by situations such as being assertive or attending parties. Fears of using public bathrooms or eating, drinking or writing in public reflected the highest levels of social anxiety. Understanding differences in the underlying severity of different types of social fears has important implications for the underlying structure of social anxiety, and may also enhance the delivery of social anxiety treatment at a population level.

Are male and female responses to social phobia diagnostic criteria comparable

Females typically report higher social phobia levels than males in community samples, and this may be due to sex bias in assessment measures. This study aims to establish whether patterns of responding to social phobia diagnostic criteria in the Composite International Diagnostic Interview (CIDI) are comparable across males and females. A subsample of participants in the Australian National Survey of Mental Health and Wellbeing (1997) reporting at least one social fear were selected (n = 1755). Analyses were conducted using a series of multi‐group confirmatory factor analyses for categorical data, with unique steps to model invariance of residual variances. Partial, but not full, invariance was established, as males and females differed in their responses to items assessing physical anxiety symptoms at low levels of social fear. Whilst these differences were statistically significant, they are likely not to affect clinical practice or rates of social phobia diagnosis. This supports differences on this measure being interpreted as genuine, and strengthens findings females are more vulnerable to social phobia than males. Copyright

Perceived needs for mental health care and barriers to treatment across age groups

ABSTRACT Purpose: This study aimed to assess responses to a structured measure of perceived need for treatment to understand whether differences in treatment uptake across age groups are related to differences in: (1) perceived need for mental health care; (2) perceptions of treatment needs being met; and/or (3) perceived attitudinal and structural treatment barriers. Methods: Data from a nationally representative sample of the Australian population (2007 National Survey of Mental Health and Wellbeing) were analysed using logistic and multinomial regression. All participants potentially benefiting from mental health services were included in analyses; including those reporting symptoms of mental disorders, using mental health services, or self-reporting significant mental health problems in the past 12 months (n = 5733). All regression analyses were adjusted for gender, the presence of chronic physical health conditions, disorder type, and disorder severity. Results: Older adults were the least likely to report any perceived need for mental health care, and specifically reported lower needs for psychotherapy, information about available services, and support improving their ability to work. Older adults perceiving a need for mental health care were also the most likely to report having these needs met. There were no differences in attitudinal and structural barriers to treatment across age groups. Conclusions: These results highlight that age needs to be considered in strategies for improving engagement and efficacy of mental health services, as well as the need for further research to understand what drives age differences in perceived need for mental health care.

Costs and Returns on Training Investment for Empirically Supported Psychological Interventions

Objective Financial costs are a significant barrier to the uptake of empirically supported psychological interventions in clinical settings. Training may be among the largest of these costs; however, the potential magnitude of these costs is unclear. The aim of the present study was to develop a hypothetical model of potential training costs associated with adopting a novel therapy using systematic review of anticipated training durations and publicly available data on workshop costs, training materials and income. Methods Direct and indirect costs were estimated for reference categories being cognitive behavioural therapy for social anxiety disorder delivered by registered psychologists. These were based on averages of 39 workshops and eight treatment manuals available in Australia identified through online searches. Results This model demonstrated that upper cost ranges for training can exceed A

From fear to avoidance: factors associated with the onset of avoidance in people who fear social situations

55000, and even didactic training (reading manuals, attending workshops) may cost up to A

Social anxiety disorder diagnostic criteria perform equally across age, comorbid diagnosis, and performance/interaction subtypes

9000. Indirect costs of forfeited income account for a substantial proportion of these costs. Conclusions This hypothetical model highlights why training costs should be considered in decisions about disseminating and implementing novel empirically supported psychological interventions, particularly within private workforces. In addition, the direct return on training investment for practitioners in private practice is unclear, and may vary based on caseloads and current treatment modalities. Initiatives to track competence, support training and identify novel training solutions may be required to ensure the sustainability of high-quality mental healthcare. What is known about the topic? Financial costs are one of the leading factors determining whether empirically supported mental health treatments are adopted or sustained. Training costs may be one of the largest costs of disseminating and implementing novel psychological therapies within existing workforces, including both direct (e.g. workshop fees) and indirect (e.g. lost income) costs. However, little is understood about the potential magnitude of these costs. What does this paper add? This paper presents a hypothetical modelling of potential costs associated with adopting a novel therapy, with reference categories for an empirically supported treatment (cognitive behaviour therapy) for one mental disorder (social anxiety disorder) for one mental health profession (psychologist). This model was developed and populated using systematic review of anticipated training durations and publicly available data on workshop costs, training materials and income. What are the implications for practitioners? With potential costs for adopting one novel psychological intervention exceeding A