What characteristics of primary anxiety disorders predict subsequent major depressive disorder?

OBJECTIVE: The goal of this study was to examine the associations between specific anxiety disorders and the risk of major depressive disorder and to explore the role of various clinical characteristics of anxiety disorders in these relationships using a prospective, longitudinal design. METHOD: The data are from a 4-year prospective, longitudinal community study, which included both baseline and follow-up survey data on 2548 adolescents and young adults aged 14 to 24 years at baseline. DSM-IV diagnoses were made using the Munich-Composite International Diagnostic Interview. RESULTS: The presence at baseline of any anxiety disorder (odds ratio [OR] = 2.2 [95% CI = 1.6 to 3.2]) and each of the anxiety disorders (specific phobia, OR = 1.9 [95% CI = 1.3 to 2.8]; social phobia, OR = 2.9 [95% CI = 1.7 to 4.8]; agoraphobia, OR = 3.1 [95% CI = 1.4 to 6.7]; panic disorder, OR = 3.4 [95% CI = 1.2 to 9.0]; generalized anxiety disorder, OR = 4.5 [95% CI = 1.9 to 10.3]) was associated with a significantly (p <.05) increased risk of first onset of major depressive disorder. These associations remained significant after we adjusted for mental disorders occurring prior to the onset of the anxiety disorder, with the exception of the panic disorder association. The following clinical characteristics of anxiety disorders were associated with a significantly (p <.05) increased risk of developing major depressive disorder: more than 1 anxiety disorder, severe impairment due to the anxiety disorder, and comorbid panic attacks. In the final model, which included all clinical characteristics, severe impairment remained the only clinical characteristic that was an independent predictor of the development of major depressive disorder (OR = 2.2 [95% CI = 1.0 to 4.4]). CONCLUSION: Our findings suggest that anxiety disorders are risk factors for the first onset of major depressive disorder. Although a number of clinical characteristics of anxiety disorders appear to play a role in the association between anxiety disorders and depression, severe impairment is the strongest predictor of major depressive disorder.     

Mental disorders among adults with asthma: results from the World Mental Health Survey

OBJECTIVE: Our objectives were (a) to determine which common mental disorders are associated with asthma in the general population after controlling for age and sex, and (b) to assess whether the associations of mental disorders with asthma are consistent across diverse countries. METHOD: Eighteen population surveys of household-residing adults were carried out in 17 countries (N=85,088). Mental disorders were assessed with the Composite International Diagnostic Interview 3.0, a fully structured diagnostic interview. The disorders considered here are 12-month anxiety disorders (generalized anxiety disorder, panic disorder/agoraphobia, posttraumatic stress disorder and social phobia), depressive disorders (dysthymia and major depressive disorder) and alcohol use disorders (abuse and dependence). Asthma was ascertained by self-reports of lifetime diagnosis among a subsample (n=42,697). RESULTS: Pooled estimates of age-adjusted and sex-adjusted odds of mental disorders among persons with asthma relative to those without asthma were 1.6 [95% confidence interval (95% CI)=1.4, 1.8] for depressive disorders, 1.5 (95% CI=1.4, 1.7) for anxiety disorders and 1.7 (95% CI=1.4, 2.1) for alcohol use disorders. CONCLUSION: This first cross-national study of the relationship between asthma and mental disorders confirms that a range of common mental disorders occurs with greater frequency among persons with asthma. These results attest to the importance of clinicians in diverse settings being alert to the co-occurrence of these conditions.     

Panic attacks and psychopathology among youth

OBJECTIVE: To determine the association between panic attacks and mental disorders among youth in the community. METHOD: Data were drawn from the Methods for the Epidemiology of Child and Adolescent Mental Disorders study (n = 1285), a community-based sample of youth aged 9-17. Multiple logistic regression analyses were used to determine the association between panic attacks and the range of mental disorders, diagnosed with the Diagnostic Interview Schedule for Children 2.3. RESULTS: Panic attacks were prevalent among 3.3% of the sample. Panic attacks were associated with an increased likelihood of any anxiety disorders [OR = 4.6 (2.5, 8.5)] and any affective disorder [OR = 5.8 (2.8, 11.7)], as well as social phobia [OR = 2.3 (1.0, 5.4)], specific phobia [OR = 3.4 (1.1, 10.1)], agoraphobia [OR = 2.9 (1.1, 7.6)], generalized anxiety disorder [OR = 4.8 (1.9, 12.1)], separation anxiety disorder [OR = 3.1 (1.3, 7.7)], major depression [OR = 3.6 (1.6, 8.3)], dysthymia [OR = 6.7 (2.9, 15.5)], and hypomania [OR = 26.1 (5.5, 124.1)]. CONCLUSION: These data are consistent with, and extend, previous clinical findings by showing that panic attacks are associated with increased likelihood of a range of affective and anxiety disorders, but not substance use disorders, among youth in the community. The use of longitudinal study designs in future investigations may be useful in increasing our understanding of the mechanisms underlying these associations.     

Prevalence,correlates, and comorbidities of four DSM-IV specific phobia subtypes: Results from the Korean Epidemiological Catchment Area study

Although several studies have detected differences in clinical features among specific phobias, there is a shortage of detailed national data on the on the DSM-IV SP subtypes, particularly in the Asian population. To examine the prevalence, demographic and other correlates, and co-morbidities of DSM-IV SP subtypes in a nationwide sample of Korean adults. We recruited 6510 participants aged 18–64 years for this study. Lay interviewers used the Composite International Diagnostic Interview to assess participants. We analyzed socio-demographics, health-related correlates and frequencies of comorbid mental disorders among participants with SP and each subtypes compared to unaffected adults. The prevalence of lifetime DSM-IV SP was 3.8%, and animal phobias were the most prevalent type of SP. Blood–injection–injury phobia was negatively associated with education, whereas situational phobia was positively associated with education. The strongest mental disorder comorbidity was associated with situational phobia; there is a higher probability of comorbid mood (OR=5.73, 95% CI=2.09–15.73), anxiety (OR=7.54, 95% CI=2.34–24.28), and somatoform disorders (OR=7.61, 95% CI=1.64–35.22) with this subtype. Blood–injection–injury phobia was highly associated with alcohol dependence (OR=9.02, 95% CI=3.54–23.02). Specific phobias are heterogeneous with respect to socio-demographic characteristics and comorbidity pattern. Implications of the usefulness of current subtype categories should continue to be investigated.     

Panic attack as a risk factor for severe psychopathology

OBJECTIVE: The purpose of the study was to examine the relationship between panic attack and the onset of specific mental disorders and severe psychopathology across the diagnostic spectrum among adolescents and young adults. METHOD: Data were drawn from the Early Developmental Stages of Psychopathology Study (N=3,021), a 5-year prospective longitudinal study of psychopathology among youths ages 14-24 years at baseline in the community. Multiple logistic regression analyses were used to examine the associations between panic attacks at baseline, comorbid mental disorders in adolescence, and the risk of mental disorders across the diagnostic spectrum at follow-up. RESULTS: The large majority of subjects with panic attacks at baseline developed at least one DSM-IV mental disorder at baseline (89.4% versus 52.8% of subjects without panic attacks). Subjects with panic attacks at baseline had significantly higher baseline levels of any anxiety disorder (54.6% versus 25.0%), any mood disorder (42.7% versus 15.5%), and any substance use disorder (60.4% versus 27.5%), compared to subjects without panic attacks at baseline. Preexisting panic attacks significantly increased the risk of onset of any anxiety disorder, social phobia, specific phobia, generalized anxiety disorder, any substance use disorder, and any alcohol use disorder at follow-up in young adulthood, and these associations persisted after adjustment for all comorbid mental disorders assessed at baseline. More than one-third (37.6% versus 9.8%) of the subjects with panic attack at baseline met the criteria for at least three mental disorders at follow-up during young adulthood. CONCLUSIONS: Panic attacks are associated with significantly increased odds of mental disorders across the diagnostic spectrum among young persons and appear to be a risk factor for the onset of specific anxiety and substance use disorders. Investigation of key family, environmental, and individual factors associated with the onset of panic attacks, especially in youth, may be an important direction for future research.     

“Anxietas Tibiarum”

Abstract Background Symptoms of anxiety and depression in patients with restless legs syndrome (RLS) have been observed. However, it is unclear whether rates of threshold depression and anxiety disorders according to DSM-IV criteria in such patients are also elevated. Methods 238 RLS patients were assessed with a standardized diagnostic interview (Munich-Composite International Diagnostic Interview for DSM-IV) validated for subjects aged 18–65 years. Rates of anxiety and depressive disorders were compared between 130 RLS patients within this age range and 2265 community respondents from a nationally representative sample with somatic morbidity of other types. Results RLS patients revealed an increased risk of having 12-month anxiety and depressive disorders with particularly strong associations with panic disorder (OR=4.7; 95% CI=2.1–10.1), generalized anxiety disorder (OR=3.5; 95% CI= 1.7–7.1), and major depression (OR=2.6; 95% CI=1.5–4.4). In addition, lifetime rates of panic disorder and most depressive disorders as well as comorbid depression and anxiety disorders were considerably increased among RLS patients compared with controls. Conclusions The results suggest that RLS patients are at increased risk of having specific anxiety and depressive disorders. Causal attributions of patients suggest that a considerable proportion of the excess morbidity for depression and panic disorder might be due to RLS symptomatology.     

Parental psychopathology, parenting styles, and the risk of social phobia in offspring: a prospective-longitudinal community study

BACKGROUND: This article examines the associations between DSM-IV social phobia and parental psychopathology, parenting style, and characteristics of family functioning in a representative community sample of adolescents. METHODS: Findings are based on baseline and first follow-up data of 1047 adolescents aged 14 to 17 years at baseline (response rate, 74.3%), and independent diagnostic interviews with one of their parents. Diagnostic assessments in parents and adolescents were based on the DSM-IV algorithms of the Munich-Composite International Diagnostic Interview. Parenting style (rejection, emotional warmth, and overprotection) was assessed by the Questionnaire of Recalled Parental Rearing Behavior, and family functioning (problem solving, communication, roles, affective responsiveness, affective involvement, and behavioral control) was assessed by the McMaster Family Assessment Device. RESULTS: There was a strong association between parental social phobia and social phobia among offspring (odds ratio [OR], 4.7; 95% confidence interval [CI], 1.6-13.5). Other forms of parental psychopathology also were associated with social phobia in adolescents (depression: OR, 3.6; 95% CI, 1.4-9.1; any anxiety disorder other than social phobia: OR, 3.5; 95% CI, 1.4-8.8; and any alcohol use disorder: OR, 3.0; 95% CI, 1.1-7.8). Parenting style, specifically parental overprotection (OR, 1.4; 95% CI, 1.0-1.9) and rejection (OR, 1.4; 95% CI, 1.1-1.9), was found to be associated with social phobia in respondents. Family functioning was not associated with respondents' social phobia. CONCLUSIONS: Data suggest that parental psychopathology, particularly social phobia and depression, and perceived parenting style (overprotection and rejection) are both associated with the development of social phobia in youth.     

Comorbid anxiety disorders alter the association between cardiovascular diseases and depression: the German National Health Interview and Examination Survey

Purpose

This study aims to examine whether specific anxiety disorder comorbidity alters the purported association between depression and specific cardiovascular diseases (CVDs).

Methods

In 4,181 representative German participants of the general population, 12-month prevalence of psychiatric disorders was assessed through the Composite International Diagnostic Interview and CVDs by physician verified diagnosis. Adjusting for conventional risk factors logistic regression analyzed the association between CVDs (peripheral vascular disease (PVD), hypertension, cerebrovascular disease and heart disease) and combinations of comorbidity between depression and anxiety disorder types (panic disorder, specific phobia, social phobia and generalized anxiety).

Results

There were 770 cases of hypertension (18.4 %), 763 cases of cerebrovascular disease (18.2 %), 748 cases of PVD (17.9 %), and 1,087 cases of CVD (26.0 %). In adjusted analyses phobia comorbid with depression was associated with cerebrovascular disease (odds ratio (OR) 1.61; 95 % confidence interval (CI) 1.04–2.50) as was panic disorder (OR 2.89; 95 % CI 1.47–5.69). PVD was significantly associated with panic disorder (adjusted OR 2.97; 95 % CI 1.55–5.69). Panic disorder was associated with CVDs (adjusted OR 2.28; 95 % CI 1.09–4.77) as was phobia (adjusted OR 1.35; 95 % CI 1.04–1.78).

Conclusions

Classification of anxiety and depression according to comorbidity groups showed discrete effects for panic disorder and specific phobia with CVDs, independent from covariates and depression.     

Increased risk of mental disorders among lifetime victims of stalking--findings from a community study.

PURPOSE: Population-based studies on the relationship between stalking and mental health outcomes in victims are scarce. The aim of the present study was to assess associations between stalking victimization and specific DSM-IV mental disorders in a community sample. METHOD: A postal survey was conducted in a middle-sized German city (sample size=675). Lifetime stalking victims and non-victims were compared regarding rates of any mental disorder, comorbid mental disorders, and specific disorders assessed by the Patient Health Questionnaire (PHQ). RESULTS: Victims had a higher incidence of mental disorders and comorbid mental disorders. Sex- and age-adjusted rates of specific disorders were increased, with the most robust associations identified for major depression (OR 4.8, 95% CI 1.8-12.8) and panic disorder (OR 4.1, 95% CI 1.1-14.9). Victims also reported higher current use of psychotropic medication (20.8% versus 5.6%). CONCLUSIONS: Our study indicates substantial associations between stalking victimization and impaired mental health that can be quantified at diagnostic levels in the general population. To confirm these findings, larger community studies are needed, which also include an assessment of lifetime psychopathology and of factors potentially mediating the associations between stalking victimization and mental health.     

Differential patterns of lifetime multiple anxiety disorder comorbidity between Latino adults with bipolar I and major depressive disorders

BACKGROUND: To determine the lifetime rates of panic disorder, obsessive-compulsive disorder (OCD), social phobia, and posttraumatic stress disorder (PTSD) among adult Latino patients with major depressive disorder (MDD) and bipolar disorder (BPD), and whether there are dose-response relationships between loading for comorbid anxiety disorders, the probability of having BPD, and attributes of severity of illness. METHODS: In a public sector clinic for the indigent located in a semiclosed rural community, 187 consecutively presenting affectively ill Latino patients were evaluated by use of the Structured Clinical Interview for DSM-IV. Polarity and the lifetime prevalence of panic disorder, OCD, social phobia, and PTSD were determined. Logistic regression was used to test associations. Trends in positive predictive values (PPVs) and likelihood ratios were assessed to determine whether dose-response relationships existed between loading for comorbid anxiety disorders and the likelihood of having BPD as opposed to MDD, psychosis, suicidal ideation, and suicide attempts. Results: Of 187 subjects, 118 (63.1%) had MDD and 69 (36.9%) had BPD. The odds ratio of a patient with BPD, relative to MDD, of having panic disorder was 4.6 (p< .0001), OCD 7.6 (p< .0001), social phobia 6.0 (p< .0001) and PTSD 5.3 (p< .0001). The PPV of having BPD was 91.3% and of having psychotic features 83.0% if one had all four anxiety disorders. There was a dose-response relationship between loading for comorbid anxiety disorders and the likelihood of having had a suicide attempt (but not suicidal ideation). CONCLUSIONS: As previously reported by us for juvenile patients, Latino adults with BPD had a remarkably high risk of having each anxiety disorder relative to patients with MDD. The results indicate that the risk of having BPD, having a psychosis, and making a suicide attempt becomes increasingly great as the number of comorbid anxiety disorders increases. These data, which are consistent with the notion of anxious bipolarity, provide further support for a possible anxious diathesis in bipolar disorder.     

Internalizing disorder in adopted versus non-adopted adults: A NESARC based study

The objective of the study consisted of comparing lifetime prevalence rates and odds ratios of anxiety, mood, and psychotic disorders in adopted-versus-non-adopted people in a nationally representative sample. The data were drawn from the National Epidemiological Survey on Alcohol and Related Conditions (NESARC). The main outcome measure was the prevalence of lifetime internalizing psychiatric disorders in adopted (n = 378) versus non-adopted (n = 42,503) individuals. Adoptees and non-adoptees were compared to estimate the odds of lifetime internalizing disorders using logistic regression analyses. Adoptees had higher prevalence rates of several lifetime mood and anxiety disorders compared with non-adoptees, with a 1.61-fold increase (95% CI 1.29–2.02) in the odds of any mood disorder and a 1.49-fold increase (95% CI 1.18–1.89) in the odds of any anxiety disorder compared with non-adoptees. Regarding specific mood and anxiety disorders, adoptees had increased odds of major depressive disorder, bipolar I disorder, panic disorder without agoraphobia, specific phobia, and generalized anxiety disorder. Disorders not differing between adoptees and non-adoptees included dysthymia, bipolar II disorder, panic disorder with agoraphobia, social phobia, and psychotic disorder. One adoption-specific risk factor was associated with lifetime mood disorder (i.e., Asian/Pacific Island). In conclusion, adoptees in a large sample from the general population had higher rates of mood and anxiety disorders compared to non-adoptees.     

Association between obesity and psychiatric disorders in the US adult population

BACKGROUND: Epidemiologic data suggest an association between obesity and depression, but findings vary across studies and suggest a stronger relationship in women than men. OBJECTIVE: To evaluate the relationship between obesity and a range of mood, anxiety, and substance use disorders in the US general population. DESIGN: Cross-sectional epidemiologic survey. SETTING: Nationally representative sample of US adults. PARTICIPANTS: A total of 9125 respondents who provided complete data on psychiatric disorder, height, and weight. Response rate was 70.9%. MAIN OUTCOME MEASURES: Participants completed an in-person interview, including assessment of a range of mental disorders (assessed using the World Health Organization Composite International Diagnostic Interview) and height and weight (by self-report). RESULTS: Obesity (defined as body mass index [calculated as weight in kilograms divided by the square of height in meters] of > or =30) was associated with significant increases in lifetime diagnosis of major depression (odds ratio [OR], 1.21; 95% confidence interval [CI], 1.09-1.35), bipolar disorder (OR, 1.47; 95% CI, 1.12-1.93), and panic disorder or agoraphobia (OR, 1.27; 95% CI, 1.01-1.60). Obesity was associated with significantly lower lifetime risk of substance use disorder (OR, 0.78; 95% CI, 0.65-0.93). Subgroup analyses found no difference in these associations between men and women, but the association between obesity and mood disorder was strongest in non-Hispanic whites (OR, 1.38; 95% CI, 1.20-1.59) and college graduates (OR, 1.44; 95% CI, 1.14-1.81). CONCLUSIONS: Obesity is associated with an approximately 25% increase in odds of mood and anxiety disorders and an approximately 25% decrease in odds of substance use disorders. Variation across demographic groups suggests that social or cultural factors may moderate or mediate the association between obesity and mood disorder.     

Smoking increases the risk of panic: findings from a prospective community study

BACKGROUND: We examined prospectively determined bidirectional associations between smoking and panic and other anxiety disorders and their temporal ordering of onset in a representative community sample of adolescents and young adults. METHODS: Baseline and 4-year follow-up data were used from the Early Developmental Stages of Psychopathology Study, a prospective longitudinal study of adolescents and young adults in Munich, Germany. We assessed smoking (occasional and regular), nicotine dependence, panic attacks, panic disorder, other anxiety disorders, and other mental disorders using the Munich-Composite International Diagnostic Interview. RESULTS: At baseline, panic attacks and panic disorder were strongly associated with occasional and regular smoking and nicotine dependence (odds ratio [OR] range, 3.0-28.0). In the prospective analyses, we found increased risk for new onset of panic attacks with prior regular smoking (OR, 2.9; 95% confidence interval [CI], 1.0-8.4) and nicotine dependence (OR, 3.6; 95% CI, 1.2-10.5). Prior nicotine dependence increased also the risk for onset of panic disorder (OR, 3.3; 95% CI, 1.0-10.5), whereas preexisting panic was not associated with subsequent smoking or nicotine dependence. When using Cox regression with time-dependent covariates, prior nicotine dependence was confirmed to be related to subsequent panic attacks (hazard ratio, 2.7; 95% CI, 1.7-4.2), but not panic disorder (hazard ratio, 1.7; 95% CI, 0.7-3.9). Rather, we found indications that prior panic attacks/disorder might also have an effect on secondary development of nicotine dependence. CONCLUSIONS: In young adults, prospective analyses revealed a fairly unique and specific, unidirectional relationship between prior smoking and increased risk for subsequent panic attacks/disorder. However, we could not exclude the existence of a second, less frequent, reverse pathway of prior panic and secondary nicotine dependence.     

Pharmacogenomics and therapeutic prospects in dementia

OBJECTIVE: To describe the prevalence and correlates of post-traumatic stress disorder (PTSD), depressive and anxiety disorders, or any other mental disorder among adult victims treated in a hospital at different points in time after the 11 March 2004 terrorist attacks in Madrid. DESIGN, SETTING, AND PARTICIPANTS: A random sample of 56 individuals injured in the attacks was interviewed in person at one, six, and twelve months after the attacks. MAIN OUTCOME MEASURES: Current DSM-IV mental disorders: depressive disorders and anxiety disorders (PTSD, generalised anxiety, agoraphobia, social phobia, and panic disorder) were assessed with the Spanish version of the MINI (Mini International Neuropsychiatric Interview), a structured, lay-administered psychiatric interview. RESULTS: PTSD was the most prevalent psychiatric disorder (35.7% at month 1, 34.1% at month 6, and 28.6% at month 12), followed by major depression (28.6%, 22.7%, and 28.6%, respectively). Others relevant conditions were suicide risk, generalised anxiety disorder (GAD), agoraphobia, and panic disorder. No significant differences in the prevalence of the disorders were found between the different assessment times. Patients with a psychiatric history prior to 11 March had a higher prevalence of PTSD, major depression, GAD, and panic disorder at month 1. Females had higher prevalence of PTSD, agoraphobia, and panic disorder at month 1. The only predictive factor for PTSD at month 12 was PTSD at month 6 (OR = 14.007). The only predictive factor for major depression at month 12 was major depression at month 6 (OR = 15.847). CONCLUSION: The prevalence of PTSD and major depression was high and remained stable between month 1, month 6, and month 12. The only predictive factor for PTSD at month 12 was PTSD at month 6.     

Panic disorder in patients with chronic heart failure

OBJECTIVE: Our objective was to assess the prevalence of panic disorder, its influence on quality of life (QoL), and the presence of further anxiety and depressive comorbid disorders in outpatients with chronic heart failure (CHF). METHODS: In a cross-sectional study, anxiety and depressive disorders were diagnosed according to Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition diagnostic criteria in patients with CHF who were aged > or =18 years and had New York Heart Association (NYHA) Functional Classes I-IV, using the Patient Health Questionnaire. Health-related QoL was evaluated using the Short-Form 36 Health Survey (SF-36). RESULTS: Of the 258 participating patients, 24 (9.3%) fulfilled diagnostic criteria for panic disorder. Seven of these (29.2%) were diagnosed with comorbid anxiety disorders, 11 (47.3%) were diagnosed with comorbid depressive disorder, and 5 (20.8%) were diagnosed with other anxiety disorders and any depressive disorder. Female gender [odds ratio (OR)=3.1; 95% confidence interval (95% CI)=1.2-7.8; P=.02] and a lower level of education (OR=0.3; 95% CI=0.1-0.9; P=.04) were associated with the presence of panic disorder. In patients with panic disorder, QoL was significantly more restricted on all subscales of the SF-36 as compared to those without panic disorder, even when age, gender, and NYHA functional class were controlled for (P=.05 to <.01). CONCLUSION: Approximately 1 of 10 patients with CHF suffers from panic disorder, many of whom also have additional anxiety or depressive comorbid disorders. Female gender and a low level of education are positively associated with the presence of panic disorder. QoL is severely limited by the presence of panic disorder. Diagnosis of mental disorders and treatment offers for affected patients should be available in patient care.     

Psychopathological sequelae of the 11 March terrorist attacks in Madrid

Objective To describe the prevalence and correlates of post-traumatic stress disorder (PTSD), depressive and anxiety disorders, or any other mental disorder among adult victims treated in a hospital at different points in time after the 11 March 2004 terrorist attacks in Madrid. Design, Setting, and Participants A random sample of 56 individuals injured in the attacks was interviewed in person at one, six, and twelve months after the attacks. Main Outcome Measures Current DSM-IV mental disorders: depressive disorders and anxiety disorders (PTSD, generalised anxiety, agoraphobia, social phobia, and panic disorder) were assessed with the Spanish version of the MINI (Mini International Neuropsychiatric Interview), a structured, lay-administered psychiatric interview. Results PTSD was the most prevalent psychiatric disorder (35.7% at month 1, 34.1% at month 6, and 28.6% at month 12), followed by major depression (28.6%, 22.7%, and 28.6%, respectively). Others relevant conditions were suicide risk, generalised anxiety disorder (GAD), agoraphobia, and panic disorder. No significant differences in the prevalence of the disorders were found between the different assessment times. Patients with a psychiatric history prior to 11 March had a higher prevalence of PTSD, major depression, GAD, and panic disorder at month 1. Females had higher prevalence of PTSD, agoraphobia, and panic disorder at month 1. The only predictive factor for PTSD at month 12 was PTSD at month 6 (OR = 14.007). The only predictive factor for major depression at month 12 was major depression at month 6 (OR = 15.847). Conclusion The prevalence of PTSD and major depression was high and remained stable between month 1, month 6, and month 12. The only predictive factor for PTSD at month 12 was PTSD at month 6.     

Anxiety disorders and risk for suicidal ideation and suicide attempts: a population-based longitudinal study of adults

CONTEXT: Controversy exists whether anxiety disorders are independently associated (ie, after adjusting for comorbid mental disorders) with suicidal ideation and suicide attempts. OBJECTIVE: To examine whether anxiety disorders are risk factors for suicidal ideation and suicide attempts in a large population-based longitudinal study. METHODS: Data come from the Netherlands Mental Health Survey and Incidence Study, a prospective population-based survey with a baseline and 2 follow-up assessments over a 3-year period. The Composite International Diagnostic Interview was used to assess DSM-III-R mental disorders. Lifetime diagnoses of anxiety disorders (social phobia, simple phobia, generalized anxiety disorder, panic disorder, agoraphobia, obsessive-compulsive disorder) were assessed at baseline. Multiple logistic regression analyses were used to examine whether anxiety disorders were associated with suicidal ideation and attempts at baseline (n = 7076) and whether anxiety disorders were risk factors for subsequent onset of suicidal ideation and attempts (n = 4796). RESULTS: After adjusting for sociodemographic factors and all other mental disorders assessed in the survey, baseline presence of any anxiety disorder was significantly associated with suicidal ideation and suicide attempts in both the cross-sectional analysis (adjusted odds ratio for suicidal ideation, 2.29; 95% confidence interval, 1.85-2.82; adjusted odds ratio for suicidal attempts, 2.48; 95% confidence interval, 1.70-3.62) and longitudinal analysis (adjusted odds ratio for suicidal ideation, 2.32; 95% confidence interval, 1.31-4.11; adjusted odds ratio for suicide attempts, 3.64; 95% confidence interval, 1.70-7.83). Further analyses demonstrated that the presence of any anxiety disorder in combination with a mood disorder was associated with a higher likelihood of suicide attempts in comparison with a mood disorder alone. CONCLUSIONS: This is the first study to demonstrate that a preexisting anxiety disorder is an independent risk factor for subsequent onset of suicidal ideation and attempts. Moreover, the data clearly demonstrate that comorbid anxiety disorders amplify the risk of suicide attempts in persons with mood disorders. Clinicians and policymakers need to be aware of these findings, and further research is required to delineate whether treatment of anxiety disorders reduces the risk of subsequent suicidal behavior.     

The relationship between anxiety disorders and suicide attempts: findings from the National Epidemiologic Survey on Alcohol and Related Conditions

Background: Previous work has suggested that anxiety disorders are associated with suicide attempts. However, many studies have been limited by lack of accounting for factors that could influence this relationship, notably personality disorders. This study aims to examine the relationship between anxiety disorders and suicide attempts, accounting for important comorbidities, in a large nationally representative sample. Methods: Data came from the National Epidemiologic Survey on Alcohol and Related Conditions Wave 2. Face‐to‐face interviews were conducted with 34,653 adults between 2004 and 2005 in the United States. The relationship between suicide attempts and anxiety disorders (panic disorder, agoraphobia, social phobia, specific phobia, generalized anxiety disorder, posttraumatic stress disorder (PTSD)) was explored using multivariate regression models controlling for sociodemographics, Axis I and Axis II disorders. Results: Among individuals reporting a lifetime history of suicide attempt, over 70% had an anxiety disorder. Even after adjusting for sociodemographic factors, Axis I and Axis II disorders, the presence of an anxiety disorder was significantly associated with having made a suicide attempt (AOR=1.70, 95% confidence interval (CI): 1.40–2.08). Panic disorder (AOR=1.31, 95% CI: 1.06–1.61) and PTSD (AOR=1.81, 95% CI: 1.45–2.26) were independently associated with suicide attempts in multivariate models. Comorbidity of personality disorders with panic disorder (AOR=5.76, 95% CI: 4.58–7.25) and with PTSD (AOR=6.90, 95% CI: 5.41–8.79) demonstrated much stronger associations with suicide attempts over either disorder alone. Conclusion: Anxiety disorders, especially panic disorder and PTSD, are independently associated with suicide attempts. Clinicians need to assess suicidal behavior among patients presenting with anxiety problems. Depression and Anxiety, 2010. © 2010 Wiley‐Liss, Inc.     

Stress and mental disorders in female military personnel: comparisons between the sexes in a male dominated profession

The proportion of women in militaries is growing; however, many studies in the area of military mental health have been conducted with majority male samples. The present study examined sex differences in trauma exposure, work stress, and mental disorders in the Canadian Community Health Survey - Canadian Forces Supplement, a representative sample of 5155 regular force personnel and 3286 reservists ages 16-54. Past-year DSM-IV mental disorders (depression, generalized anxiety disorder, panic disorder, social phobia, PTSD, and alcohol dependence), lifetime exposure to 28 traumatic events, and work stress were assessed. Regular and reserve female personnel were less likely than males to experience deployment-related traumas, accidents, and several events involving violence (adjusted odds ratio [AOR] range 0.10-0.62). Women were more likely to endorse sexual trauma, partner abuse, and being stalked (AOR range 3.60-13.63). For work stress, regular force women reported higher levels of job demand and stress around social support than men, whereas regular and reserve force women reported less physical exertion. After adjusting for a range of covariates, regular female personnel were more likely than males to have PTSD (AOR 1.88, 99% CI 1.01-3.50), while reservist women were more likely than men to have depression, panic disorder, and any mood or anxiety disorder (AOR range 1.87-6.98). Both regular and reservist women had lower rates of alcohol dependence (AOR range 0.30-0.34). Clinicians working with female personnel should screen for trauma/stressors and mental disorders that are particularly common in this population.