The Comorbidity of Anxiety and Depression

1997 ◽  
Vol 31 (5) ◽  
pp. 700-703 ◽  
Author(s):  
James Rodney ◽  
Nigel Prior ◽  
Betty Cooper ◽  
Mike Theodoros ◽  
Joanne Browning ◽  
...  

Objective: This study explored the effect of comohid anxiety disorders in patients admitted to an inpatient specialist Mood Disorders Unit for the treatment of a primary major depressive episode. Method: Subjects were assessed on admission and discharge. DSM-Ill-R diagnoses for major depression and anxiety disorders were established using CIDI-Auto; cornorbid anxiety disorders were coexistent in time with the major depression, with both conditions meeting diagnostic criteria at the time of assessment. Severity of illness was assessed using the Hamilton DepressiodMelancholia Scale, the revised Hamilton Anxiety Scale and the revised Beck Depression Inventory. Results: For the analysis, the study cohort was divided into three groups: depression alone (n = 33), one comorbid anxiety disorder (n = 15), and two or more comorbid anxiety disorders (n = 24). No particular anxiety disorder predominated. Interestingly, the presence or absence of comorbid anxiety with severe major depression made no significant difference to treatment choice or outcome results. Specifically, there was no significant difference between the three groups in the utilisation of electroconvulsive therapy and pharmacotherapy (including antidepres-sants, benzodiazepines and neuroleptics); all subjects improved significantly on both depression and anxiety ratings, and length of inpatient stay did not vary significantly between the three groups. Conclusions: The existence of comorbid anxiety disorders in those patients who presented for treatment of a primary major depressive episode did not significantly effect choice of treatment or treatment outcome, suggesting that there is a close interrelationship between the two conditions.

Crisis ◽  
2003 ◽  
Vol 24 (3) ◽  
pp. 105-112 ◽  
Author(s):  
Andrea P. Chioqueta ◽  
Tore C. Stiles

Summary: The present study examined the relationships between specific anxiety, mood disorders, levels of hopelessness, and suicide ideation. The sample consisted of 606 outpatients recruited from several psychiatric settings. It was found that dysthymia was significantly associated with hopelessness. Patients presenting major depressive episode with higher anxiety symptoms had significantly increased scores on the hopelessness scale. Major depressive episode and bipolar disorder, but not dysthymia, were significantly associated with higher levels of suicide ideation. Increased levels of anxiety symptoms in patients with dysthymia were associated with increased levels of suicide ideation, while increased depressive symptoms in patients with specific phobia and generalized anxiety disorder were associated with significantly lower levels of suicide ideation. The findings suggest that depressive disorders, but not anxiety disorders, constitute risk for suicide. Moreover, the differentiation between a depressive and an anxiety disorder as the principal diagnosis, as well as the assessment of anxiety-level symptoms in patients with major depressive episode and dysthymia, seems of special relevance when assessing suicide risk.


2004 ◽  
Vol 35 (6) ◽  
pp. 865-871 ◽  
Author(s):  
JIANLI WANG

Background. Major depression is a prevalent mental disorder in the general population, with a multi-factorial etiology. However, work stress as a risk factor for major depression has not been well studied.Method. Using a longitudinal study design, this analysis investigated the association between the levels of work stress and major depressive episode(s) in the Canadian working population, aged 18 to 64 years. Data from the longitudinal cohort of the Canadian National Population Health Survey (NPHS) were used (n=6663). The NPHS participants who did not have major depressive episodes (MDE) at baseline (1994–1995 NPHS) were classified into four groups by the quartile values of the baseline work stress scores. The proportion of MDE of each group was calculated using the 1996–1997 NPHS data.Results. The first three quartile groups had a similar risk of MDE. Those who had a work stress score above the 75th percentile had an elevated risk of MDE (7·1%). Using the 75th percentile as a cut-off, work stress was significantly associated with the risk of MDE in multivariate analysis (odds ratio=2·35, 95% confidence interval 1·54–3·77). Other factors associated with MDE in multivariate analysis included educational level, number of chronic medical illnesses and child and adulthood traumatic events. There was no evidence of effect modification between work stress and selected sociodemographic, clinical and psychosocial variables.Conclusions. Work stress is an independent risk factor for the development of MDE in the working population. Strategies to improve working environment are needed to keep workers mentally healthy and productive.


1994 ◽  
Vol 9 (6) ◽  
pp. 307-308
Author(s):  
F Okada ◽  
M Daiguji

Keller and Shapiro (1982) reported that 26% of the first 101 patients who entered the National Institute of Mental Health (NIMH)-Clinical Research Branch Collaborative Program on the Psychobiology of Depression (Katz and Klerman, 1979; Katz et al, 1979) with a major depressive episode were found to have a pre-existing chronic minor depression of at least 2 years’ duration. They labeled this Phenomenon “double depression„ (Keller and Shapiro, 1982). Furthermore, patients with panic disorder almost universally suffer from major depression at some time in the course of their disorder (Coryell et al, 1988; Stein and Uhde, 1988; Vollrath et al, 1990). “Double diagnosis„, or identification of psychotic or related syndromes, co-existing with personality disorders, have received much attention in the literature in recent years (Sanderson et al, 1990; Torgersen, 1990; Barsky et al, 1992). Much of the research on comorbidity between depressive and anxiety disorders has been summarized in two edited volumes (Kendall and Watson, 1989; Maser and Cloninger, 1990).


1995 ◽  
Vol 25 (6) ◽  
pp. 1269-1280 ◽  
Author(s):  
Lorna Peters ◽  
Gavin Andrews

SynopsisThe procedural validity of the computerized version of the Composite International Diagnostic Interview (CIDI-Auto) was examined against the consensus diagnoses of two clinicians for six anxiety disorders (agoraphobia, panic disorder (±agoraphobia), social phobia, simple phobia, obsessive compulsive disorder (OCD), generalized anxiety disorder (GAD) and major depressive episode (MDE)). Clinicians had available to them all data obtained over a 2- to 10-month period. Subjects were 98 patients accepted for treatment at an Anxiety Disorders Clinic, thus, all subjects had at least one of the diagnoses being examined. While the CIDI-Auto detected 88·2% of the clinician diagnoses, it identified twice as many diagnoses as did the clinicians. The sensitivity of the CIDI-Auto was above 0·85 except for GAD, which had a sensitivity of 0·29. The specificity of the CIDI-Auto was lower (range: 0·47–0·99). The agreement between the CIDI-Auto and the clinician diagnoses, as measured by intraclass kappas, ranged from poor (k = 0·02; GAD) to excellent (k = 0·81; OCD), with a fair level of agreement overall (k = 0·40). Canonical correlation analysis suggested that the discrepancies between the CIDI-Auto and clinicians were not due to different diagnostic distinctions being made. It is suggested that the CIDI-Auto may have a lower threshold for diagnosing anxiety disorders than do experienced clinicians. It is concluded that, in a sample where all subjects have at least one anxiety disorder diagnosis, the CIDI-Auto has acceptable validity.


2006 ◽  
Vol 47 (2) ◽  
pp. 91-98 ◽  
Author(s):  
Nathalie T. Godart ◽  
Fabienne Perdereau ◽  
Florence Curt ◽  
Zoé Rein ◽  
François Lang ◽  
...  

2011 ◽  
Vol 26 (S2) ◽  
pp. 2025-2025
Author(s):  
Z. Rihmer

Antidepressant-resistant major depression (AD-RD) is a great challenge for the treating clinician. The most widely accepted definition of AD-RD refers that the depressed patient does not show a clinically significant response after at least two adequate trials of different classes of antidepressants. In spite of the fact that there are several causes of AD-RD in general, there is increasing evidence that one of the most common sources of it is the unrecognized bipolar nature of the “unipolar” major depressive episode, when the patients receive antidepressant monotherapy - unprotected by mood stabilizers/atypical antipsychotics. While it is well documented that the optimal clinical response to antidepressants is much rare in bipolar I and II than in unipolar major depression, only the most recent clinical studies have focused on the boundaries between treatment-resistant unipolar major depressive disorder and bipolar disorder. The most widely noted conclusion of the prior studies on AD-RD is that if noncompliance, hypothyreosis, use of “depressiogenic” drugs and pharmacokinetic causes etc, can be excluded, antidepressant-resistance reflects the heterogeneity of depressive disorders and different subgroups of depressed patients respond (or do not respond) to different drugs. However, current psychopathological research on the complex relationship between unipolar depression and bipolar disorders show that the most common source of antidepressant-resistance in DSM-IV diagnosed unipolar major depression is the result of the subthreshold or unrecognized bipolar nature of the depressive episode and antidepressant-induced (hypo)manic switches, antidepressant-resistance and “suicide-inducing” potential of antidepressants seem to be related to the underlying bipolarity of the major depressive episode.


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