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J Angst

Publications and source records attributed to J Angst.

At least 73 records · Page 4Linked to original sources
PubMed1994

Psychopathology and headache syndromes in the community.

The present study investigated the association between psychopathology and headache in a prospective longitudinal epidemiologic study of a cohort of 19- and 20-year-olds in Zurich, Switzerland. Prevalence rates of psychopathology by headache subtype were examined both cross-sectionally and longitudinally. Psychiatric disorders were evaluated using a direct interview administered by experienced clinicians. Personality was assessed using the Freiburg Personality Inventory and the Symptom Checklist 90. In general, subjects with migraine had more affective and anxiety disorders and exhibited elevated rates of neuroticism and somatization compared to nonmigraine subjects. When examined by headache subtype, migraineurs with aura exhibited greater rates of psychopathology and more personality abnormalities than any of the other headache subtypes or controls. In contrast to clinical wisdom, subjects with tension-type headache did not differ from controls in rates of psychopathology or on any of the personality or symptom factors.

Adolescent↗
PubMed1994

Heterogeneity of depression. Classification of depressive subtypes by longitudinal course.

This paper describes the application of prospective longitudinal data from an epidemiological sample of young adults to define subtypes of major depression. Depression was classified on a spectrum from subthreshold manifestation of symptoms and duration at one end, to cases with recurrent episodes of depression meeting duration criteria for major depressive episodes at the other. There was a direct relationship between the severity of depression over the longitudinal course and both duration and recurrence of depressive episodes. The subgroup of depression with recurrence of both brief and longer duration episodes could be discriminated on most of the indicators of validity including symptoms, impairment, family history, and suicide attempts. In light of the young age of this cohort, the strong history of suicide attempts and other complications of depression among the subjects with recurrent depression was striking. These findings underscore the importance of employing course as a classification criterion of depression, and the inclusion of subthreshold episodes of depression in the characterization of course.

Adult↗
PubMed1994

Diagnostic criteria for migraine. A validity study.

To identify the optimum combination of symptoms for the International Headache Society (IHS) diagnostic criteria for migraine, the criteria were systematically assessed for validity using an epidemiologic sample from Zurich, Switzerland. The indicators of validity used included subjective distress, occupational impairment, family history of migraine, and treatment. The symptoms that provided the best discrimination between migraine and other headache subtypes were photophobia, phonophobia, and osmophobia, in combination with gastrointestinal symptoms. The evaluation of the validity of the IHS classification of migraine is impeded by several factors, including: the presence of multiple headache syndromes within an individual, the tendency for headache characteristics to change over a lifetime, the effects of headache treatments in obscuring syndromes, and the lack of generalizability of findings based on clinical samples. The methods used in this study serve as a model for applying statistical techniques for evaluating the validity of diagnostic criteria. The findings, however, should be replicated in additional studies to determine their generalizability to specific demographic and clinical subgroups.

Adult↗
PubMed1994

Recurrent brief depression: the Zurich Study.

The initial conception of manic depressive illness by Kraepelin included short and mild depressive and hypomanic states in the nosologic category of affective illnesses. A longitudinal epidemiologic study in Switzerland (the Zurich Study) identified brief, but recurrent, episodes of depression with severity of symptoms, impairment, and distress equivalent to major depression. The concept of recurrent brief depression was further confirmed in recent community and general practice studies. The diagnostic criteria for recurrent brief depression require the presence of at least five of nine depressive symptoms analogous to the symptoms of major depression, yet a duration of less than 2 weeks (in general 1 to 3 days), a recurrence of at least 12 times a year, and the evidence of work impairment. The 1-year prevalence in the general population is about 5% and the lifetime prevalence 16%. Recurrent brief depression may develop into major depression and vice versa in about the same percentage of cases. It is associated with considerable suicidality and treatment-seeking and is comorbid with anxiety disorders. Patients with combined major and recurrent brief depression are more severely affected, have a higher suicide attempt rate, and have an increased frequency of treatment-seeking than patients with only one condition. Further studies are needed to establish appropriate treatment strategies.

Adult↗
PubMed1993

The Zurich Study. XVII. Sexual abuse in childhood. Frequency and relevance for adult morbidity data of a longitudinal epidemiological study.

In the course of a 10-year longitudinal investigation of young Swiss adults, childhood sexual abuse was assessed at the age of 30 years. It was reported by 11.5% of women and by 3.5% of men; 56% of the females had been abused by relatives (none of the males), 20% by fathers. Abuse cases tended to be more depressed and anxious; they reported more suicide attempts and more sexual problems than controls and also slightly more psychiatric symptoms and neuroticism. Childhood familial risk factors were more frequent for abuse cases than for controls. Depression at adult age was more strongly connected with early familial risk factors than with early sexual abuse.

Adult↗
PubMed1993

The Zurich Study: XXI. Sexual dysfunctions and disturbances in young adults. Data of a longitudinal epidemiological study.

In a cohort of young Swiss adults, sexual disturbances and dysfunctions were assessed by interview four times between ages 20 and 30 years. Over 10 years almost every second female and every third male subject reported disturbances. In females at age 30 years, the prevalence of orgasmic difficulties and of dyspareunia corresponded to non-clinical samples of other studies. Also, in accordance with the literature, impaired interest was much more prevalent in females. In males and females, sexual disturbances were to some extent associated with anxiety and depression; in addition, in women, they were also associated with social phobia and eating disorders. With regard to neuroticism, negative affect and reports of an unsatisfactory childhood, subjects with temporary disturbances resembled more strongly those with chronic problems than controls. Compared with the controls, women's sexual disturbances were more chronic and more strongly associated with minor psychiatric symptoms and personality deviance; this finding was less pronounced in men.

Adult↗
PubMed1993

The Zurich Study. XVIII. Obsessive-compulsive disorders and syndromes in the general population.

The cross-sectional and longitudinal association between obsessive-compulsive syndrome (OCS) and other psychiatric problems and the course over 11 years was examined in a Swiss cohort of young adults. As the prevalence of obsessive-compulsive disorders, defined according to the DSM-III was very low (n = 5), we applied a lower diagnostic threshold based on obsessive-compulsive symptoms and social impairment, to define an OCS. The weighted lifetime prevalence rate for OCS at age 30 years was 5.5%. The mean age of onset was 17.1 +/- 4.9 years for males, and 19.1 +/- 5.1 year for females. OCS was associated with all subtypes of depressive disorders as well as with social phobia and agoraphobia. Although the longitudinal analysis showed no stability at the diagnostical level, there was some stability on the symptom level. Perhaps subjects with OCS learned in time to cope and to live with their symptoms without suffering.

Adaptation, Psychological↗
PubMed1993

The Zurich Study. XIX. Patterns of menstrual disturbances in the community: results of the Zurich Cohort Study.

This paper reports on the prevalence of emotional and somatic symptoms of the pre- and peri-menstrual phases of the female reproductive cycle among women who participated in a 10-year prospective epidemiologic cohort study of young adults in Zurich, Switzerland. The association between menstrual syndrome and sociodemographic features, personal habits, and psychopathology is investigated. The findings confirm those of previous studies, which have shown that symptoms of menstrual syndrome are quite common in non-clinical samples in the community, and increase with age. Women with menstrual problems could be distinguished from other women in a number of domains, including demographic characteristics such as nulliparity, higher educational level, distressing life events, lack of oral contraceptive use, psychiatric disorders, and personality traits. The combined evidence for a strong association between menstrual syndrome and anxiety, both in the subjects and their relatives, suggests that menstrual problems may represent a manifestation of underlying anxiety disorders rather than strictly affective disorders as traditionally believed.

Adult↗
PubMed1993

The Zurich study. XX. Social phobia and agoraphobia.

The problems in association with agoraphobia and social phobia were examined in an 11-year prospective longitudinal study of a Swiss cohort of young adults. The weighted prevalence rates according to DSM-III were 2.9% for agoraphobia and 3.8% for social phobia. Although the problem of agoraphobia was greater in females, an equal sex ratio was observed for social phobia. There was a significant degree of comorbidity between the two subtypes of phobia, with females exhibiting a significantly greater frequency of co-occurrence of both disorders than males. The course of the two disorders was quite similar. In general, subjects with both disorders reported a more severe course. Assessment of comorbidity of phobias and other disorders revealed that agoraphobia was most significantly associated with extended neurasthenia, sexual problems, and the consumption of cannabis. On the other hand, social phobia was associated with other disorders than agoraphobia, with the strongest associations emerging for simple phobia, extended insomnia, and alcohol abuse. These findings support the validity of the distinction between different subtypes of phobia. The longitudinal analysis revealed that also phobia in general was not stable at the diagnostic level phobic symptoms were quite persistent across time.

Adolescent↗
PubMed1993

Time course of improvement under antidepressant treatment: a survival-analytical approach.

A meta-analysis of an earlier multicenter, double-blind efficacy study comparing placebo, oxaprotiline and amitriptyline was performed in order to test the survival-analytical approach in modelling the onset of improvement and response to treatment with antidepressants. The sample consisted of moderately depressed male (n = 154) and female (n = 275) patients (aged 17-73), diagnosed according to DSM-III criteria for major depression. Of these, 120 were treated with oxaprotiline, 120 with amitriptyline and 189 with placebo. Efficacy criteria were Hamilton Depression (HAMD) and Anxiety (HAMA) and Zung Self-Rating scales. Up to eight ratings over a period of 40 days were available for analysis. The results showed that the sensitivity in discriminating between groups was substantially enhanced through the inclusion of drop-outs and consideration of the effect of time to withdrawal from the study due to lack of improvement. Withdrawal from the trial due to inefficacy occurred earliest under placebo (50% within the first 8 days), whereas less than 40% dropped out within the first 12 days under active treatments. The most interesting and unexpected finding of the analysis was that the time course of improvement among responders was independent of the treatment modality, and thus identical in all three groups. Specifically, the efficacy of any of the given treatments was reflected only by the total number of responders or nonresponders. Once triggered, the time course of recovery from illness becomes identical to that of spontaneous remissions as observed, for example, under placebo.(ABSTRACT TRUNCATED AT 250 WORDS)

Adolescent↗
PubMed1993

Current concepts of the classification of affective disorders.

The introduction of the Diagnostic and Statistical Manual of Mental Disorders (DSM-III), which uses a descriptive approach to operational definitions of psychiatric diagnostic groups, is an important step forward. Still the present classification systems of DSM or the International Classification of Diseases (ICD) are preliminary. A systematic descriptive approach based on data collection as a foundation for diagnostic definitions is strongly recommended. Data-based definitions have a good change of surviving later changes of diagnostic fashion. Treatment studies will be more valuable when the course of a disorder is included in its definition. The diagnosis of depression has to include operationalized subthreshold syndromes, such as minor depression and recurrent brief depression. In the face of the elementary importance of the distinction between uni- and bipolar disorders, a development of the definition of hypomania is proposed. Based on this definition, bipolar disorders are more prevalent in the normal population than is commonly assumed. Most diagnostic subgroups of depression are artificial. They are not diagnostic entities, but subtypes of the same spectrum disorder. During his/her lifetime, a patient may therefore receive two or more diagnoses, but still suffer from a single disorder. Dual diagnoses, such as double depression and combined depression, define more severely affected patients with major depression, characterized by higher suicide attempt rates. Thus the differentiation of subgroups is more than an academic exercise but has a practical use.

Bipolar Disorder↗
PubMed1993

Comorbidity of anxiety, phobia, compulsion and depression.

The longitudinal association of several syndromal diagnoses is very frequently a direct consequence of modern descriptive diagnosis. Comorbidity in this sense is clinically relevant. Comorbid cases are more severe, are more amenable to treatment and are more frequently suicidal. The level of association between psychiatric syndromes can lead to nosologic hypotheses that can be further examined by independent investigations, and especially by means of family studies. Generalized anxiety disorders are very closely associated with the affective disorders, particularly with depressions and suicide attempts, but also with hypomania. There is no close relationship with panic disorder. Social phobias are highly associated with agoraphobia, but also with simple phobia; also with panic, obsessive-compulsive syndromes and substance abuse. The prevalence of obsessive-compulsive syndromes depends to an exceptional degree on the definition. Syndromes below the diagnostic threshold of DSM-III are extremely frequent, and longitudinally a fluctuation about this threshold is apparent. OCS are especially found to be associated with social phobia and agoraphobia as well as with dysthymia and recurrent brief depression, but less with major depression.

Adult↗
PubMed1993

Coping and illness behavior among young adults with panic.

The present study investigated illness behavior and coping strategies among young adults with panic (N = 21), with other anxiety disorders (N = 27), and without anxiety disorders (controls; N = 296). The sample represented a cross-section of 29- to 30-year-old adults from the canton of Zurich in Switzerland. Coping was defined as the ways in which subjects react to life stress. Illness behavior was defined as use of medical care and substance consumption. Subjects with panic differed significantly from subjects with other anxiety disorders and controls in their coping strategies by seeking social support, using cognitive avoidance, and using rumination more frequently. Cognitive avoidance and rumination, however, are ineffective and maladaptive ways of dealing with stress. With respect to illness behavior, we found fewer differences. Subjects with panic had more psychiatric consultations and more days off from work than controls, but otherwise, they did not use medical care excessively. Also, their consumption of psychoactive substances was minimal, with the exception of tranquilizers. There was no indication of excessive use of nonpsychiatric medical care. The possible implications of these findings for psychotherapy and diagnostics are discussed.

Adaptation, Psychological↗
PubMed1993

Validation of diagnostic criteria for migraine in the Zürich longitudinal cohort study.

This paper reports the results of a systematic assessment of the validity of the specific diagnostic criteria for migraine without aura, as defined by the International Headache Society (IHS), in a longitudinal epidemiologic sample of young adults who were selected from the general population of Zürich, Switzerland. Systematic modification of each of the IHS criteria for migraine without aura yielded one-year weighted prevalence rates ranging from 24% for the unmodified IHS criteria to 9% for the most restrictive definition of migraine. The major implications of the findings for the IHS criteria are: (a) they provide adequate coverage to classify the majority of subjects with headache in the general population; (b) there is little overlap between migraine and tension-type headache, suggesting that the criteria define moderately independent subgroups; (c) the criteria for migraine without aura appear to be too unrestrictive for application in the community, particularly among young adults at the peak period of incidence of migraine; (d) the criteria for "aura" need more precise operationalization; and (e) models of validation of the diagnostic criteria suggest that Criterion D of the IHS criteria for migraine without aura should be modified to require both gastrointestinal symptoms and photophobia and phonophobia.

Adult↗