Posttraumatic stress disorder and treatment seeking in a nationally representative Canadian military sample

The pillars of health: influence of multiple lifestyle behaviors on body mass index and depressive symptoms in adult twins

BACKGROUND

Guidelines promoting healthy lifestyles are cornerstones of chronic disease prevention and treatment. The purpose of this study is to investigate independent and joint associations of five key health behaviors with health outcomes (body mass index (BMI kg/m2) and depressive symptoms) in adult twins.

METHODS

We included 6,048 twin pairs from a community-based registry. Five key health behaviors were: (1) ≥ 8 h of sleep per night, (2) ≥ 5 servings of fruits and vegetables daily, (3) ≤ 2 h sedentary time per day, (4) ≥ 150 min of moderate-to-vigorous physical activity (MVPA) per week, and (5) no smoking. We analyzed phenotypic associations between behaviors and outcomes; whether phenotypic associations were confounded by additive genetic and shared environmental factors within twin pairs ("quasi-causal" associations); and which behaviors, considered simultaneously, had the largest associations with outcomes.

RESULTS

We found negative phenotypic associations between number of behaviors achieved with BMI and depressive symptoms score (ps < 0.05). Associations remained significant, though attenuated, when controlling for genetic and shared environmental factors, and demographics, for depressive symptoms score but not BMI (p < 0.05). Quantitative variable importance measures derived from regression tree models showed sedentary time and MVPA were the most important variables in partitioning twins with different BMI, and smoking and sedentary time for partitioning twins with different depressive symptoms score.

CONCLUSIONS

Achievement of commonly endorsed health behaviors is associated with lower BMI (especially sedentary and MVPA targets) and depressive symptoms score (especially sedentary and smoking targets). This provides further support of health behavior promotion to improve health outcomes.

Changes in perceived social support and PTSD symptomatology among Danish army military personnel

PURPOSE

Previous research has identified social support to be associated with risk of posttraumatic stress disorder (PTSD) symptoms among military personnel. While the lack of social support influences PTSD symptomatology, it is unknown how changes in perceived social support affect the PTSD symptom level in the aftermath of deployment. Furthermore, the influence of specific sources of social support from pre- to post-deployment on level of PTSD symptoms is unknown. We aim to examine how changes in perceived social support (overall and from specific sources) from pre- to 2.5 year post-deployment are associated with the level of post-deployment PTSD symptoms.

METHODS

Danish army military personnel deployed to Afghanistan in 2009 and 2013 completed questionnaires at pre-deployment and at 2.5 year post-deployment measuring perceived social support and PTSD symptomatology and sample characteristics of the two cohorts. Data were analyzed using univariate and multivariate nominal logistic regression.

RESULTS

Negative changes in perceived social support from pre- to post-deployment were associated with both moderate (OR 1.99, CI 1.51-2.57) and high levels (OR 2.71, CI 1.94-3.78) of PTSD symptoms 2.5 year post-deployment (adjusted analysis). Broadly, the same direction was found for specific sources of social support and level of PTSD symptoms. In the adjusted analyses, pre-deployment perceived social support and military rank moderated the associations.

CONCLUSIONS

Deterioration in perceived social support (overall and specific sources) from pre- to 2.5 year post-deployment increases the risk of an elevated level of PTSD symptoms 2.5 year post-deployment.

Mental health services use among Canadian Armed Forces members and Veterans: Data from the 2018 Canadian Armed Forces members and Veterans mental health follow-up survey (CAFMVHS)

Background

Differences in healthcare delivery systems and pathways to mental healthcare for Canadian Armed Forces (CAF) members and Veterans may contribute to variations in mental health services use (MHSU) and the factors associated with it. We: (1) estimated the prevalence of past 12-month MHSU (≥1 visit with a medical or mental health professional); and (2) identified sociodemographic, military-, trauma-, and health-related variables associated with MHSU among CAF members and Veterans.

Methods

The current study used data from the 2018 CAF Members and Veterans Mental Health Follow-Up Survey (CAFVMHS). Model variables were selected a priori, and their respective associations with MHSU were estimated among (1) CAF members and (2) Veterans using separate multivariable logistic regression models.

Results

Similar proportions of CAF members and Veterans reported past 12-month MHSU (26.9 vs. 27.5%, respectively). For both CAF members and Veterans, meeting criteria for at least one past 12-month MH disorder was associated with past 12-month MHSU [adjusted odds ratio (AOR) = 7.80, 95% confidence interval (CI) = 7.18-8.46; and AOR = 11.82, 95% CI: 11.07-12.61, respectively). Past-year suicide ideation, a history of sexual trauma, and endorsement of adverse childhood experiences were also significantly associated with MHSU among CAF members and Veterans.

Significance

Similar to previous research, meeting screening criteria for a past 12-month MH disorder was strongly associated with MHSU among both samples. This study extends our existing knowledge about factors associated with MHSU among CAF members and Veterans, and offers direction for future research to increase MHSU.

Are Individuals Always Aware of Their Trauma-Related Intrusive Thoughts? A Study of Meta-Awareness

Individuals are not always aware of their mental content. We tested whether lack of awareness occurs in those who have experienced trauma, with and without posttraumatic stress disorder (PTSD). We also examined the role of proposed cognitive mechanisms (working memory and inhibition) in explaining unnoticed intrusions. Individuals with PTSD (n = 44), and varying levels of symptoms (high posttraumatic stress [PTS]: n = 24; low PTS: n = 37) reported on intrusive thoughts throughout a reading task. Intermittently, participants responded to probes about whether their thoughts were trauma related. Participants were "caught" engaging in unreported trauma-related thoughts (unnoticed intrusions) for between 24 and 27% of the probes in the PTSD and high PTS groups, compared with 15% of occasions in the low PTS group. For trauma-related intrusions only, participants lacked meta-awareness for almost 40% of probes in the PTSD group, which was significantly less than that observed in the other groups (∼60%). Contrary to predictions, working memory and response inhibition did not predict unnoticed intrusions. The results suggest that individuals who have experienced significant trauma can lack awareness about the frequency of their trauma-related thoughts. Further research is warranted to identify the mechanisms underpinning the occurrence of unnoticed intrusions.

Determinants of mental and physical health treatment-seeking among military personnel

BACKGROUND

Although research has documented factors influencing whether military personnel seek treatment for mental health problems, less research has focused on determinants of treatment-seeking for physical health problems.

AIMS

To explicitly compare the barriers and facilitators of treatment-seeking for mental and physical health problems.

METHOD

US soldiers (n = 2048) completed a survey with measures of barriers and facilitators of treatment-seeking for mental and physical health problems as well as measures of somatic symptoms and mental health.

RESULTS

The top barrier for both mental and physical health treatment-seeking was a preference for handling problems oneself. The top facilitators for both symptom types were related to treatment improving quality of life. Differential endorsement of barriers occurred for treatment of mental versus physical health symptoms. In contrast, facilitators were endorsed more for physical than for mental health treatment. While there were few gender differences, officers reported more barriers and facilitators than did enlisted personnel. Screening positive for mental or physical health problems was associated with greater endorsement of both barriers and facilitators for physical and mental health treatment, respectively.

CONCLUSIONS

The leading barriers and facilitators for seeking treatment for mental health and physical problems are relatively similar, suggesting that health education should consider decision-making in seeking both mental and physical healthcare. Interventions should be tailored to reduce barriers for officers and improve facilitators for junior enlisted personnel, and address barriers and facilitators for service members screening positive for a mental or physical health problem.

Barriers and Facilitators to Help-Seeking for Individuals With Posttraumatic Stress Disorder: A Systematic Review

Posttraumatic stress disorder (PTSD) brings with it diagnostic symptoms that can be debilitating and persist for years. Left untreated, PTSD can have far-reaching and damaging consequences for the individual, families, communities, and society at large. Although early detection and intervention are recognized as key to the effective treatment of PTSD, many individuals who suffer from PTSD do not seek essential health services. The aim of the present study was to identify the barriers and facilitators to help-seeking for individuals with PTSD, based on existing literature. A systematic review, modeled on the Joanna Briggs Institute methodology for systematic reviews, examined studies cited in PsycINFO, Medline, Embase, CINAHL, and PILOTS published from January 1980 to January 2019. Eligible studies measured barriers and facilitators to help-seeking for adults with PTSD. Two reviewers independently screened citations, and double data extraction was exercised. Of 2,391 potentially relevant citations, 21 studies, published between 1989 and 2018 and based in six countries, were included. Seventeen studies focused on military as a target population. We identified 10 principal barrier and facilitator themes: trauma-related; treatment; therapist or provider; knowledge; access; health care system; sociocultural environment; values, beliefs, and priorities; past experiences; and medical care needs and illness burden. In identifying prominent barriers and facilitators to help-seeking for individuals with PTSD, this review highlights opportunities to inform policies and programs that promote PTSD knowledge and recognition, reduce public and personal stigma, improve access and quality of care, and encourage support for patients and families living with PTSD.

Relationship between substance use and attitudes towards seeking professional psychological help among veterans filing PTSD claims

INTRODUCTION

Veterans in distress often do not seek mental health treatment, even when such services are available. Substance use may further undermine treatment-seeking, given its association with negative treatment views. This study examined attitudes towards seeking psychological help in a sample of veterans diagnosed with posttraumatic stress disorder (PTSD), with and without co-occurring substance use disorders (SUD).

METHODS

Altogether, 143 male OEF/OIF veterans filing service-connected benefits claims for PTSD completed the Attitudes Towards Seeking Professional Psychological Help-Short Form (ATSPPH-SF) and other baseline assessments. Treatment attitudes were compared among veterans with (n=34) and without (n=109) SUD using ANCOVA, controlling for demographic covariates. Post-hoc ANCOVA compared means on the two ATSPPH-SF subscales: Openness to Seeking Treatment, and Value/Need in Seeking Treatment.

RESULTS

Overall, ATSPPH-SF scores were similar to those reported in other samples of young men. Controlling for demographic covariates, veterans with co-occurring SUD held significantly less favorable attitudes towards seeking help than veterans without comorbid SUD. In subscale analyses, valuation of treatment was significantly lower among veterans with SUDs, but openness towards treatment was not.

CONCLUSIONS

Substance-using veterans' lower valuation of treatment may reflect opinions that problems resolve on their own, psychotherapy is ineffective, or concerns that SUDs complicate treatment. Thus an approach towards engaging these veterans in treatment that addresses a general skepticism towards the value of psychological help is warranted.

Posttraumatic symptoms among maltreated youth using classification and regression tree analysis

Individual psychological factors have been shown to exacerbate risk for posttraumatic stress disorder (PTSD) symptoms in youth following maltreatment, but the novel contribution of the present study includes a focus on interactive relationships between these factors on specific PTSD symptom clusters. This study identified maltreated youth at highest risk for re-experiencing, avoidance, and hyperarousal symptom clusters via cognitive, affective, and demographic variables. Participants (n=400) included ethnically diverse maltreated youth. Classification and regression tree (CART) analysis, a form of binary recursive partitioning (BRP), identified subgroups of maltreated youth at highest risk for three core PTSD symptom clusters. Posttraumatic cognitions, anhedonia, negative mood, processing speed, and ethnicity best predicted re-experiencing symptoms. Depersonalization/derealization, verbal comprehension, sexual maltreatment, and age best predicted avoidance symptoms. Negative cognitions about self, IQ, dissociation, working memory, and posttraumatic cognitions best predicted hyperarousal symptoms. Core PTSD symptom clusters may thus be associated with unique collections of risk factors for maltreated youth. Clinical protocols for this population could be recalibrated to be more sensitive to specific profiles that more accurately identify highest risk maltreated youth and better inform evidence-based treatment practices.

A systematic review of help-seeking and mental health service utilization among military service members

Research has demonstrated that military service members are at elevated risk for a range of psychiatric problems, and mental health services use is a conduit to symptom reduction and remission. Nonetheless, there is a notable underutilization of mental health services in this population. This systematic review aimed to identify and critically examine: (1) rates of service use; (2) barriers and facilitators to care; and (3) programs and interventions designed to enhance willingness to seek care and increase help-seeking behaviors among current military personnel (e.g., active duty, National Guard, Reserve). Overall, 111 peer-reviewed articles were identified for inclusion. Across studies, the rate of past-year service use among service members with mental health problems during the same time frame was 29.3% based on weighted averages. Studies identified common barriers to care (e.g., concerns regarding stigma, career impact) and facilitators to care (e.g., positive attitudes toward treatment, family/friend support, military leadership support) among this population. Although programs (e.g., screening, gatekeeper training) have been developed to reduce these barriers, leverage facilitators, and encourage service use, further research is needed to empirically test the effectiveness of these interventions in increasing rates of service utilization. Critical areas for future research on treatment engagement among this high-risk population are discussed.

Perceived barriers and facilitators of mental health service utilization in adult trauma survivors: A systematic review

Many trauma survivors seem to be reluctant to seek professional help. The aim of the current review was to synthesize relevant literature, and to systematically classify trauma survivors' perceived barriers and facilitators regarding mental health service utilization. The systematic search identified 19 studies addressing military personnel and 17 studies with trauma survivors of the general population. The data analysis revealed that the most prominent barriers included concerns related to stigma, shame and rejection, low mental health literacy, lack of knowledge and treatment-related doubts, fear of negative social consequences, limited resources, time, and expenses. Perceived facilitators lack attention in research, but can be influential in understanding mental health service use. Another prominent finding was that trauma survivors face specific trauma-related barriers to mental health service use, especially concerns about re-experiencing the traumatic events. Many trauma survivors avoid traumatic reminders and are therefore concerned about dealing with certain memories in treatment. These perceived barriers and facilitators were discussed regarding future research and practical implications in order to facilitate mental health service use among trauma survivors.

Delay to mental healthcare in a cohort of Canadian Armed Forces personnel with deployment-related mental disorders, 2002-2011: a retrospective cohort study

OBJECTIVE

To assess whether the delay to care among Canadian Armed Forces (CAF) personnel who sought care for a mental disorder changed over time and in association with CAF mental health system augmentations.

DESIGN

A stratified, random sample (n=2014) was selected for study from an Afghanistan-deployed cohort (N=30 513) and the 415 (weighted N=4108) individuals diagnosed with an Afghanistan service-related mental disorder were further assessed. Diagnosis-related data were abstracted from medical records (22 June 2010 to 30 May 2011). Other data were extracted from administrative databases. Delay to care was assessed across five mental health system eras: 2002/2004, 2005/2006, 2007, 2008 and 2009/2010. Weighted Cox proportional hazards regression assessed the association between era, handled as a time-dependent covariate, and the outcome while controlling for a broad range of potential confounders (ie, sociodemographic, military and clinical characteristics). Taylor series linearisation methods and sample design weights were applied in generating descriptive and regression analysis statistics.

PRIMARY OUTCOME

The outcome was the delay to mental healthcare, defined as the latency from most recent Afghanistan deployment return date to diagnosis date, among individuals with an Afghanistan service-related mental disorder diagnosis.

RESULTS

Mean delay to care was 551 days (95% CI 501 to 602); the median was 400 days. Delay to care decreased in subsequent eras relative to 2002/2004; however, only the most recent era (2009/2010) was statistically significant (adjusted HR (aHR): 3.01 (95% CI 1.91 to 4.73)). Men, operations support occupations, higher ranks, non-musculoskeletal comorbidities and fewer years of military service were also independently associated with longer delays to care.

CONCLUSIONS

CAF mental health system changes were associated with reduced delays to mental healthcare. Further evaluation research is needed to identify the key system changes that were most impactful.

Mechanistic Role of Emotion Regulation in the PTSD and Alcohol Association

OBJECTIVE

Posttraumatic Stress Disorder (PTSD) has been linked to problematic alcohol use. Those with PTSD have greater difficulty regulating emotions, which may help to explain the PTSD-drinking co-occurrence. However, emotion regulation as a mediator of PTSD-alcohol associations has been limited. In the present study, we examined this association.

METHOD

College students (N = 466, M_age = 19.5, 53% female) were assessed for PTSD by structured clinical interview, and were categorized into three groups: those who had not experienced a significant trauma (No Trauma, n = 182), those who had experienced a significant trauma but did not have current PTSD symptoms (Trauma Only, n = 171), and those with significant trauma and with current PTSD (partial or full; PTSD, n = 113). Alcohol use over the past six months and emotion regulation were assessed via self-report (DDQ; Collins, Parks, & Marlatt, 1985; DERS; Gratz & Roemer, 2004).

RESULTS

Findings revealed that those with trauma and clinically significant PTSD reported greater difficulty with emotion regulation than those who had not been exposed to trauma, which in turn significantly predicted alcohol use. This mediating effect was not found in those with trauma exposure alone, suggesting an important role for PTSD in this pathway. Findings also indicated that the ability to control emotion-based impulses is a particularly relevant mediating facet of emotion regulation.

CONCLUSION

These results implicate emotion regulation as a potential explanatory link between PTSD and alcohol use, lending further support to the inclusion of emotion regulation training in PTSD treatment.

The 2013 Canadian Forces Mental Health Survey: Background and Methods

OBJECTIVE

The 2013 Canadian Forces Mental Health Survey (CFMHS) collected detailed information on mental health problems, their impacts, occupational and nonoccupational determinants of mental health, and the use of mental health services from a random sample of 8200 serving personnel. The objective of this article is to provide a firm scientific foundation for understanding and interpreting the CFMHS findings.

METHODS

This narrative review first provides a snapshot of the Canadian Armed Forces (CAF), focusing on 2 key determinants of mental health: the deployment of more than 40,000 personnel in support of the mission in Afghanistan and the extensive renewal of the CAF mental health system. The findings of recent population-based CAF mental health research are reviewed, with a focus on findings from the very similar mental health survey done in 2002. Finally, key aspects of the methods of the 2013 CFMHS are presented.

RESULTS

The findings of 20 peer-reviewed publications using the 2002 mental health survey data are reviewed, along with those of 25 publications from other major CAF mental health research projects executed over the past decade.

CONCLUSIONS

More than a decade of population-based mental health research in the CAF has provided a detailed picture of its mental health and use of mental health services. This knowledge base and the homology of the 2013 survey with the 2002 CAF survey and general population surveys in 2002 and 2012 will provide an unusual opportunity to use the CFMHS to situate mental health in the CAF in a historical and societal perspective.

Stigma as a barrier to seeking health care among military personnel with mental health problems

Approximately 60% of military personnel who experience mental health problems do not seek help, yet many of them could benefit from professional treatment. Across military studies, one of the most frequently reported barriers to help-seeking for mental health problems is concerns about stigma. It is, however, less clear how stigma influences mental health service utilization. This review will synthesize existing research on stigma, focusing on those in the military with mental health problems. We conducted a systematic review and meta-analysis of studies between 2001 and 2014 to examine the prevalence of stigma for seeking help for a mental health problem and its association with help-seeking intentions/mental health service utilization. Twenty papers met the search criteria. Weighted prevalence estimates for the 2 most endorsed stigma concerns were 44.2% (95% confidence interval: 37.1, 51.4) for "My unit leadership might treat me differently" and 42.9% (95% confidence interval: 36.8, 49.0) for "I would be seen as weak." Nine studies found no association between anticipated stigma and help-seeking intentions/mental health service use and 4 studies found a positive association. One study found a negative association between self-stigma and intentions to seek help. Counterintuitively, those that endorsed high anticipated stigma still utilized mental health services or were interested in seeking help. We propose that these findings may be related to intention-behavior gaps or methodological issues in the measurement of stigma. Positive associations may be influenced by modified labeling theory. Additionally, other factors such as self-stigma and negative attitudes toward mental health care may be worth further attention in future investigation.

Social support and mental health treatment among persons with PTSD: results of a nationally representative survey

OBJECTIVE

Despite continued outreach efforts, levels of mental health care utilization for posttraumatic stress disorder (PTSD) remain low. As such, it is important to identify factors that may promote or discourage treatment engagement. This study was designed to examine the association between perceived social support and utilization of several types of PTSD services.

METHODS

Data came from wave 2 of the National Epidemiologic Survey on Alcohol and Related Conditions, which was administered between 2004 and 2005. PTSD was assessed via structured interview, and perceived social support was assessed via the Interpersonal Support Evaluation List-12. Participants were asked about receipt of four modalities of PTSD-specific treatment: outpatient, hospitalization, emergency department visits, and psychiatric medication prescriptions. Weighted logistic regression modeling was performed to examine associations between social support scores and the odds of receiving treatment for PTSD, and the analyses were adjusted for sociodemographic characteristics and PTSD severity.

RESULTS

The final sample consisted of 2,811 individuals with PTSD. Social support was not associated with the odds of receiving any type of PTSD treatment.

CONCLUSIONS

Among individuals in the general population with PTSD, perceived social support may not be related to PTSD treatment utilization. Other factors, such as sociodemographic characteristics and symptom severity, may be more important predictors of receipt of PTSD-specific treatment.

Predictors of treatment interest and treatment initiation in a VA outpatient trauma services program providing evidence-based care

The present study explored interest in treatment and treatment initiation patterns among veterans presenting at a VA posttraumatic stress disorder (PTSD) clinic. U.S. veterans who were referred for treatment of posttraumatic stress symptoms (N = 476) attended a 2-session psychoeducation and orientation class where they completed measures of demographic variables, PTSD and depression symptom severity, and interest in treatment. Consistent with previous literature and our hypotheses, Vietnam (OR = 1.78) and Persian Gulf veterans (OR = 2.05) were more likely than Iraq and Afghanistan veterans to initiate treatment. Veterans reporting more severe PTSD and depression symptoms were more likely to initiate treatment than not (OR for PTSD = 1.02, OR for depression = 1.02). Interest in treatment emerged as a strong predictor of treatment initiation. Specifically, interest in trauma-focused treatment showed a significant independent predictive effect on initiation such that veterans who expressed interest in trauma-focused treatment were significantly more likely to initiate treatment than those who did not express interest (OR = 2.13). Building interest in trauma-focused treatment may be a vital component for engaging veterans in evidence-based trauma-focused therapy.

Mental health service use among trauma-exposed adults: a mixed-methods study

Research findings indicate that many urban trauma-exposed individuals do not access needed mental health care; therefore, it is critical to identify factors associated with the use of mental health services for this group. This study used a mixed-methods approach to examine predictors of mental health service use and barriers to care. Quantitative findings showed that significantly more adults who were male and black with a lower education and income did not report current mental health service use. After controlling for covariates, individuals with lower trauma exposure (odds ratio [OR], 0.7; 95% confidence interval [CI], 0.5-0.9) and higher depression symptom scores (OR, 1.0; 95% CI, 1.0-1.1) were significantly more likely to report current mental health service use. Qualitative findings indicated that fear, low mental health literacy, helplessness, and psychosocial issues were identified as barriers to mental health treatment. Implications for treatment and future research are discussed.

The process leading to help seeking following childhood trauma

In this article we explore the process leading to help seeking following childhood trauma among women who were currently in treatment. We interviewed 13 participants from six treatment groups for clients exposed to human-inflicted traumas. Transcripts were analyzed using a hermeneutical-phenomenological approach. Help seeking was initiated after a prolonged period of time (13 to 58 years after first trauma exposure), during which participants relied heavily on a strategy of managing on their own. Self-management contributed to delays in help seeking, but was also an important resource. High levels of distress were reported prior to help seeking, often without help seeking being considered as an option. The participants sought help when encountering situational demands exceeding available resources, resulting in experiences of exhaustion and loss of control. We present a model of the help-seeking process, underlining the importance of respecting and exploring the individual process of seeking help when offering trauma-specific treatment.

Posttraumatic stress disorder and suicide risk among veterans: a literature review

Posttraumatic stress disorder (PTSD) is frequently associated with suicidal ideation and suicide attempts. Suicide is an important cause of death in veterans, and the risk for intentional death continues to be high many years after service. The aim of the present study was to investigate whether there is a relationship between PTSD and suicidal behavior among veterans. We also discussed the risk factors of suicide among war veterans with PTSD. A systematic review was conducted focusing on war-related PTSD and suicidal behavior. A total of 80 articles from peer-reviewed journals were identified, 34 were assessed for eligibility, and 16 were included. Having a history of PTSD is associated with higher rates of morbidity and mortality and increased the risk for suicidal behavior. The association between PTSD and suicidal behavior was confirmed by the presence of other risk factors and high rates of comorbidity. Current suicidal behavior should be adequately assessed in war veterans.

Symptoms of posttraumatic stress disorder and depression in relation to alcohol-use and alcohol-related problems among Canadian forces veterans

OBJECTIVE

Alcohol misuse is common among military veterans affected by posttraumatic stress disorder (PTSD) and depression; however, research to date has provided mixed evidence concerning differential associations among PTSD and depressive symptoms in relation to alcohol misuse. Further, most available studies have examined primarily male samples or have dichotomously grouped participants as either having or not having an alcohol use disorder. Our study sought to explore relations among 2 aspects of alcohol misuse (that is, alcohol-related problems, and quantity or frequency of alcohol use) and symptoms of PTSD and depression in independent samples of female and male military veterans.

METHOD

Canadian military veterans (1271 men and 72 women) completed a battery of self-report questionnaires as part of a broader health status assessment conducted by Veterans Affairs Canada.

RESULTS

Linear regression analyses suggested depressive symptoms accounted for unique variance in reported alcohol-related problems and quantity or frequency of alcohol use among male veterans. Additionally, PTSD hyperarousal symptoms accounted for unique variance in reported alcohol-related problems. In contrast, among female veterans neither PTSD nor depressive symptoms were found to account for significant variance in measures of alcohol-related problems or quantity or frequency of alcohol use.

CONCLUSIONS

Findings suggest differing mechanisms are involved in influencing alcohol misuse among male and female veterans. Accordingly, female veterans may benefit from specialized assessment and intervention approaches to prevent and treat alcohol-related disorders, rather than applying the same strategies commonly used with male veterans. Comprehensive results, implications, and directions for future research are discussed.

The decision to vaccinate or not during the H1N1 pandemic: selecting the lesser of two evils?

BACKGROUND

With the release of the H1N1 vaccine, there was much controversy surrounding its use despite strong encouragements to be vaccinated in the media. Though studies have examined factors influencing people's decision to be vaccinated, few have focused on how general beliefs about the world or where an individual gathers information might influence that decision.

METHODOLOGY/PRINCIPAL FINDINGS

A cross-sectional web-based survey (N = 817) was conducted during the H1N1 outbreak after the vaccine was available. Variables examined included sociodemographic information, health related behaviours, specific beliefs concerning the H1N1 virus and its vaccine, as well as general beliefs, such as fear of contamination, intolerance of uncertainty, emotional states, coping behaviour, and the source of information concerning the virus. Three converging statistical methods were used to examine the associations - analysis of variance, logistic regression, and recursive partition modelling. The most consistent and strongest association was that negative beliefs about the H1N1 vaccine (e.g. fear of its side effects) was related to the decision not to be vaccinated, whereas beliefs about the dangers of the H1N1 virus was related to the decision to be vaccinated. Most notably, having very strong negative beliefs about the vaccine was a more powerful predictor than even strong beliefs about the dangers of the H1N1 virus. Furthermore, obtaining information from the Internet, as compared to more traditional sources of information (e.g., TV, newspapers) was related to the decision not to be vaccinated.

CONCLUSIONS/SIGNIFICANCE

These results are consistent with the Health Belief Model. Importantly they suggest that during future pandemics public health officials should not only discuss the dangers of the pandemic but also (i) take additional steps to reassure the public about the safety of vaccines and (ii) monitor the information disseminated over the Internet rather than strictly relying on the more traditional mass media.

Prevalence, correlates, and clinical features of delayed-onset posttraumatic stress disorder in a nationally representative military sample

PURPOSE

Since its inclusion in the Diagnostic and Statistical Manual of Mental Disorders, there has been skepticism over the validity of delayed-onset posttraumatic stress disorder (PTSD). Paucity of research on the correlates and the clinical consequences of delayed-onset PTSD have historically added to this skepticism. The objective of this study was to address an important gap in the literature by examining the prevalence, the correlates, and the clinical consequences of delayed-onset PTSD using data from a large epidemiological survey.

METHODS

Data were drawn from the Canadian Community Health Survey-Canadian Forces Supplement (N = 8,441), a cross-sectional epidemiological survey of mental health in the Canadian Forces. Logistic regressions were used to identify correlates of delayed onset. Cox regressions were used to examine the impact of delayed onset on symptom duration.

RESULTS

The prevalence of delayed-onset PTSD in this Canadian population was less than 1%. Delayed-onset cases accounted for 8.5% of all PTSD cases. Experiencing trauma in early childhood, experiencing a repeated trauma, and serving in the land troops were all associated with greater likelihood of developing delayed-onset PTSD. Delayed onset, after controlling for important sociodemographic, military, and clinical variables, was associated with greater symptom duration.

CONCLUSIONS

The phenomenon of delayed-onset PTSD, albeit uncommon, does exist. Certain trauma characteristics may increase the risk for developing delayed-onset PTSD. Delayed onset may be associated with more chronic forms of this disorder.

Temporal relationships between Gulf War deployment and subsequent psychological disorders in Royal Australian Navy Gulf War veterans

BACKGROUND

Although much has been published on the effects of the 1990/1991 Gulf War on the psychological health of veterans, few studies have addressed the pattern and timing of post-war development of psychological disorders. Our study aims to identify the most common psychological disorders that first appeared post-Gulf War, the period of peak prevalence and the sequence of multiple psychological disorders.

METHODS

The temporal progression of psychological disorders in male Australian naval Gulf War veterans with no prior psychological disorders was calculated across each year of the post-Gulf War period. DSM-IV diagnoses were obtained using the Composite International Diagnostic Interview.

RESULTS

Psychological disorder rates peaked in the first 2 years (1991-1992) following the Gulf War. Alcohol use disorders were the most likely to appear first. Classification and regression tree analysis found that risk of disorder was exacerbated if veterans had been exposed to a high number of potential psychological stressors during their military service. Lower military rank was associated with increased risk of alcohol disorders, particularly during the first 2 years post-Gulf War. In veterans with two or more disorders, anxiety disorders and alcohol disorders tended to appear before affective disorders.

CONCLUSIONS

Our study found that psychological disorders occur in sequence following Gulf War deployment. Our findings may help clinicians to anticipate, and better manage, multiple symptomatology. The findings may also assist veteran and defence organisations in planning effective mental health screening, management and prevention policy.

Help-seeking and receipt of treatment among UK service personnel

BACKGROUND

For armed forces personnel, data on help-seeking behaviour and receipt of treatment for mental disorders are important for both research and policy.

AIMS

To examine mental healthcare service use and receipt of treatment in a sample of the UK military.

METHOD

Participants were drawn from an existing UK military health cohort. The sample was stratified by reserve status and by participation in the main war-fighting period of the Iraq War. Participants completed a telephone-based structured diagnostic interview comprising the Patient Health Questionnaire and Primary Care Post-Traumatic Stress Disorder Screen (PC-PTSD), and a series of questions about service utilisation and treatment receipt.

RESULTS

Only 23% of those with common mental disorders and still serving in the military were receiving any form of medical professional help. Non-medical sources of help such as chaplains were more widely used. Among regular personnel in receipt of professional help, most were seen in primary care (79%) and the most common treatment was medication or counselling/psychotherapy. Few regular personnel were receiving cognitive-behavioural therapy (CBT). These findings are comparable with those reported for the general population.

CONCLUSIONS

In the UK armed forces, the majority of those with mental disorders are not currently seeking medical help for their symptoms. Further work to understand barriers to care is important and timely given that this is a group at risk of occupational psychiatric injury.

Patterns and predictors of treatment delay for mental disorders in a nationally representative, active Canadian military sample

BACKGROUND

Although mental disorders constitute a significant public health problem in military populations, little is known about whether military members seek mental health treatment in a timely manner.

OBJECTIVE

The objective of this study was to examine delays in making the initial treatment contact for various mental disorders in a military population.

DESIGN

A cross-sectional analysis was conducted using data from the Canadian Community Health Survey-Canadian Forces Supplement.

SUBJECTS AND MEASURES

Participants (N = 8441) were assessed for mood and anxiety disorders, using the World Health Organization's Composite International Diagnostic Interview. Those meeting criteria for at least 1 disorder in their lifetime were included in the analyses.

RESULTS

:The majority (82%-100%) of military members with a DSM-IV disorder eventually seek treatment. However, there are significant delays in seeking treatment. Median delays for major depressive disorder, generalized anxiety disorder, posttraumatic stress disorder, panic disorder, and social phobia are 3, 3, 7, 8, and 26 years, respectively. For deployment related posttraumatic stress disorder, longer delays are associated with being in an older age cohort, being male, not having comorbid panic disorder, and shorter military service duration. Across all disorders, longer delays are associated with being in an older age cohort, shorter military service duration, and earlier age of onset.

CONCLUSIONS

Failure to initiate treatment in a timely manner is a major mental health service access issue in the military context. Interventions that aim to shorten treatment delays are needed and should target military members most at risk for delaying treatment.

Twelve month use of mental health services in a nationally representative, active military sample

BACKGROUND

Mental disorders constitute a significant public health problem in active military populations. However, very little is known about patterns of mental health service use in these populations.

OBJECTIVES

The primary objective of this study was to examine the patterns and predictors of mental health service use in active Canadian Force members. Additional objectives included identification of barriers to service use.

DESIGN

A cross-sectional analysis was conducted using data from the Canadian Community Health Survey-Canadian Forces Supplement.

SUBJECTS AND MEASURES

Participants were assessed for mood, anxiety, and substance use disorders using the World Health Organization's Composite International Diagnostic Interview. Those who met criteria for at least 1 disorder in the past year (n = 1220) were included in the analyses.

RESULTS

Of military members with a 12-month diagnosis, 42.6% used services in the past year. Predictors of service use included mental health indicators, gender, marital status, and military rank. Of military members who failed to use services, only a small percentage (3.5-16.0%) acknowledged a need for services. These members perceived a number of barriers to services, foremost among which was lack of trust in military health, administrative, and social services.

CONCLUSIONS

Despite recent efforts to de-stigmatize mental health problems and treatments, unmet need for mental health services remains a significant problem in active militaries. Our findings indicate that military institutions should continue public education campaigns to de-stigmatize mental health problems and should make necessary changes in health delivery systems to gain the trust of military members.