Biomedical subjects

P J Clayton

Publications and source records attributed to P J Clayton.

At least 19 recordsLinked to original sources

PubMed2002

Mortality of patients with mood disorders: follow-up over 34-38 years.

BACKGROUND: All follow-up studies of causes of death in affective disordered patients have found they have markedly elevated suicide rates and a less reproducible increased mortality from other causes. The reported rates by gender, disorder type and treatment are more variable. METHODS: Hospitalised affective disordered patients (n=406) were followed prospectively for 22 years or more. Later, mortality was assessed for 99% of them at which time 76% had died. RESULTS: Standardised Mortality Rates (observed deaths/expected deaths) for patients were elevated especially for suicide and circulatory disorders in both men and women. Women actually had higher suicide rates but that did not take into account the twofold increase in general population rates for men. Unipolar patients had significantly higher rates of suicide than bipolar Is or IIs. In all groups long term medication treatment with antidepressants alone or with a neuroleptic, or with lithium in combination with antidepressants and/or neuroleptics significantly lowered suicide rates even though the treated were more severely ill. Although at the age of onset the suicide rates were most elevated, from ages 30 to 70 the rates were remarkably constant despite the different courses of illness. LIMITATIONS: The patients were identified as inpatients and followed prospectively. The treatments were uncontrolled and are not quantifiable but were documented during the follow-up. CONCLUSIONS: Men and women hospitalised for affective disorders have elevated mortality rates from suicide and circulatory disorders. Unipolars have higher suicide rates than bipolar Is or IIs. Long term medication treatment lowers the suicide rates, despite the fact that it was the more severely ill who were treated.

Aged↗

PubMed2000

Diagnosis of posttraumatic stress disorder with the MMPI: PK scale scores in somatization disorder.

Clinic patients with diagnoses of either major depression or somatization disorder were given the MMPI. Women with somatization disorder had high scores on Keane's MMPI scale (PK) for posttraumatic stress disorder. Following the procedure for the MMPI-2 (46 of the 49 PK items and MMPI-2 norms), 59% of the women with somatization disorder and 21% of the women with major depression would have T scores > or = 65 on the MMPI-2 scale although none of them were known to have developed psychiatric disorder after exposure to a life threatening event. The PK scale has little use in the differential diagnosis of women patients with somatization disorder.

Diagnosis, Differential↗

PubMed1999

MMPI screening scales for somatization disorder.

44 items on the MMPI were identified which appear to correspond to some of the symptoms in nine of the 10 groups on the Perley-Guze checklist for somatization disorder (hysteria). This list was organized into two scales, one reflecting the total number of symptoms endorsed and the other the number of organ systems with at least one endorsed symptom. Full MMPIs were then obtained from 29 women with primary affective disorder and 37 women with somatization disorder as part of a follow-up study of a consecutive series of 500 psychiatric clinic patients seen at Washington University. Women with the diagnosis of somatization disorder scored significantly higher on the somatization disorder scales created from the 44 items than did women with only major depression. These new scales appeared to be slightly more effective in identifying somatization disorder than the use of the standard MMPI scales for hypochondriasis and hysteria. Further development is needed.

Adult↗

PubMed1998

Personality, smoking and suicide: a prospective study.

From a random sample of Swiss army conscripts, 28 cases of suicide, 36 deaths due to accident and 2754 controls were analyzed for social and psychological features, in particular for personality factors at age 19 years; further information was collected during a follow-up study to age 36 years. Among the subjects who committed suicide low school achievement, smoking, and psychiatric disorders were overrepresented. In both groups of deaths aggressiveness (excitability, reactive aggression, spontaneous aggression) and depression scores were higher than among controls. The findings are compatible with those of other studies and biological theories about the role of impulsiveness in suicide.

Adult↗

PubMed1998

Depression subtyping: treatment implications.

The complexity of subtyping depression and the implications that such subtyping has on treatment choices are discussed in this article. The most recent edition of the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition (DSM-IV) directs clinicians to classify the mood disorders in depressed patients as unipolar, bipolar, due to a general medical condition, or due to substance abuse. The focus of this article is unipolar (major depression and dysthymia) and bipolar I and II disorders with and without feature specifiers for atypical depression, seasonal affective disorder, psychotic depression, and postpartum depression. Anxious depression, which is not a DSM-IV classification, is also reviewed.

Antidepressive Agents↗

PubMed1995

CRH challenge test in anxious depression.

Recently, renewed interest has developed in the concept of anxious depression. Using an operational definition of "anxious depression" based on the SADS interview, 25 patients with major depressive disorder were separated into anxious (n = 14) and nonanxious (n = 11) subtypes. These two patient groups and normal control subjects received an intravenous corticotropin-releasing hormone challenge test. Adrenocorticotropic hormone (ACTH) and cortisol responses were compared among the three groups. Patients with anxious depression had significant attenuation of ACTH response when compared to nonanxious patients and normal control subjects.

Adrenocorticotropic Hormone↗

PubMed1994

Premorbid personality traits of men who develop unipolar or bipolar disorders.

In 1972, all Swiss males in the Canton of Zurich who reported for a compulsory medical examination for selection for military service were given the Freiburg Personality Inventory. This was repeated in half the sample on three subsequent occasions. From 1983 to 1988, an effort was made to identify all male psychiatric cases. There were 99 unipolars and 26 bipolars. The unipolars who had their age of onset after the personality testing displayed elevated scores on a constellation of symptoms labelled autonomic lability which consisted of items that correlated highly with neuroticism. The trait endured even when it was retested at age 36 years. The bipolars did not differ from the controls in any respect on any occasion.

Adult↗

PubMed1992

Unipolar depression: diagnostic inconsistency and its implications.

Major depressive disorder using Feighner et al. (Arch. Gen. Psychiatry 26, 57-63, 1972) and DSM-III or DSM-III-R criteria has proven to be a heterogeneous diagnosis. It apparently includes a wide variety of clinical conditions. This report, based upon the results of a multi-year blind follow-up of 500 randomly selected psychiatric outpatients focuses on certain problems associated with the diagnosis of primary unipolar affective disorders. At index, 141 patients received diagnoses of primary unipolar depression. At follow-up, only 62 (44%) of these received the same diagnosis, with an additional 14 (10%) receiving a diagnosis of undiagnosed: questionable primary unipolar depression, and 5 (4%) a diagnosis of bipolar disorder. Thus, about 43% received other diagnoses at follow-up: 35 (25%) diagnoses of secondary depression and 25 (18%) other diagnoses without indication of an affective component. Bipolar patients' stability was significantly better for those who were manic at intake.

Adult↗

PubMed1991

Heterogeneity in the inheritance of alcoholism. A study of male and female twins.

Genetic influence on risk for alcoholism was examined in a US treatment sample of 50 monozygotic (MZ) and 64 dizygotic (DZ) male and 31 MZ and 24 DZ female same-sex twin pairs. For the DSM-III composite diagnosis of Alcohol Abuse and/or Dependence, statistically significant MZ/DZ differences in concordance were found with male, but not female, twins. For specific diagnoses, MZ/DZ differences were found in male subjects for both Alcohol Abuse and Alcohol Dependence, while MZ/DZ differences in female subjects were found only for Alcohol Dependence. The male MZ/DZ concordance difference for composite diagnosis but not for Alcohol Dependence could be accounted for statistically by differences in age of onset between MZ and DZ probands. As with alcohol, differences in MZ/DZ concordance were found for DSM-III composite diagnoses of Other Substance Abuse and/or Dependence with male, but not female, twins. Using Epidemiological Catchment Area data to estimate the population base rates of both alcohol and other substance use disorders allowed for heritability analyses that showed genetic factors to have only a modest influence on overall risk in both sexes (heritability estimates of approximately 0.35 for male subjects and 0.24 for female subjects). However, evidence for heterogeneity in the pattern of inheritance was also found, suggesting forms of alcoholism that may be moderately to highly heritable.

Age Factors↗

PubMed1991

Follow-up and family study of anxious depression.

OBJECTIVE: The failure of the concept of anxious depression to find its way into DSM-III-R led the authors to conclude that a further report on the occurrence of anxiety symptoms in depressed subjects is indicated. METHOD: The subjects were 327 consecutively evaluated inpatients and outpatients with primary unipolar depressive disorder at five university medical centers participating in the National Institute of Mental Health Collaborative Program on the Psychobiology of Depression--Clinical Studies. The authors restricted their sample selection to patients with primary depressive disorder so that patients with other preexisting psychiatric disorders, especially anxiety disorders, would not contaminate the symptom picture, family studies, or follow-up. The examined six anxiety symptoms and derived a new anxiety summary score to show the effect of anxiety in depression on family data and 5-year outcome. RESULTS: Depressed subjects with higher ratings for anxiety took longer to recover. There was also a significant relationship between anxiety in depressed probands and the risk for primary unipolar depressive disorder, but not anxiety disorders or alcoholism, among 832 blindly interviewed first-degree relatives. CONCLUSIONS: These data confirm the usefulness of subdividing depressed patients according to anxiety symptoms: psychic and somatic symptoms of anxiety, taken together, significantly predict family illness and course. The data also emphasize the wisdom of requiring that generalized anxiety disorder not be diagnosed in the presence of a mood disorder. Clearly, symptoms of anxiety coexist with depression and need to be recognized for the effective treatment of the underlying depressive disorder.

Ambulatory Care↗

PubMed1990

Bereavement and depression.

Bereavement is the reaction to the loss of a loved one by death and usually occurs in three stages: numbness, depression, and recovery. The length of time it takes for bereavement to resolve varies from person to person. During the depression stage, the bereaved person may experience all the symptoms of the typical depressed patient, with the exception of retardation. However, a depressed patient has more symptoms than a bereaved person and reports feeling changed, not his or her usual self, whereas the bereaved person expects to have such symptoms. The essence of the morbidity of bereavement is the increased use of alcohol, tranquilizers, hypnotics, cigarettes, and other substances during this stressful time. Increased mortality occurs in men aged 75 years or younger in the first year of bereavement, but mortality does not increase in women or parents during that first year. Pathologic grief, defined as a continued depressive symptom, occurs in about 15% of bereaved persons when they are initially widowed. Treatment for the bereaved person should be that which is given to any depressed patient.

Aged↗

PubMed1990

The comorbidity factor: establishing the primary diagnosis in patients with mixed symptoms of anxiety and depression.

Accurate diagnosis is the key to effective treatment and long-term management of anxiety and depressive disorders. Numerous studies, however, have established a high incidence of depressive symptoms among patients with anxiety disorders and likewise a significant incidence of anxiety symptoms among patients with unipolar or bipolar disorders. These patients with mixed symptoms will experience a more severe illness, with generally poorer outcome. Careful assessment of the patient's predominant mood, sleep patterns, psychomotor signs, age of onset, family history, pattern of substance use, response to exercise, and extent of psychosocial contact can assist the clinician in making an accurate primary diagnosis.

Anxiety Disorders↗

PubMed1988

Depression and panic attacks: the significance of overlap as reflected in follow-up and family study data.

Ninety-one patients with panic attacks limited historically to depressive episodes had more severe depressive symptoms and were less likely to recover during a 2-year follow-up than 417 depressed patients who did not have panic attacks. Family study data clearly distinguished another 15 patients with panic disorder and secondary depression; interviewed relatives of panic disorder patients were significantly less likely to have primary depression and significantly more likely to have various anxiety disorders. These data support the hierarchical system by which many of the contemporary diagnostic systems separate panic disorder and major depression.

Anxiety Disorders↗

PubMed1986

Differential outcome of pure manic, mixed/cycling, and pure depressive episodes in patients with bipolar illness.

We found significant differences in time to recovery and rates of chronicity in 155 patients with bipolar illness when the episodes were subtyped into those with manic symptoms alone (pure manic), depressive symptoms alone (pure depressed), or symptoms of depression and mania (mixed or cycling) up to the time of entry into a clinical research study. Most of the patients in all three groups who did not recover received levels of somatotherapy that were generally consistent with current recommendations for intensity of treatment appropriate to each condition. Based on a median follow-up of 18 months, the life-table estimate of the probability of remaining ill for at least one year was 7% for the pure manic patients compared with 32% in patients who entered the study with episodes that were mixed or cycling. Purely depressed patients had a 22% probability of remaining ill, approximating rates found in patients without bipolar illness who have episodes of depression. Different clinical variables were found to predict time to recovery in each of these groups. We propose that this subtyping of episodes may be a clinically useful part of the classification of bipolar disorders.

Adult↗

PubMed1986

Immigration and major affective disorder.

We studied bipolar (ever manic; n = 297) primary unipolar (never secondary; n = 328), and secondary unipolar (n = 241) RDC major affective disorder patients in the NIMH--CRB Collaborative Study of the Psychobiology of Depression--Clinical. We examined rates of immigration, for patients and their parents, in these three diagnostic groups. Primary patients had a twofold increase in the odds in favor of immigration, compared to secondary patients. The difference persisted when proband age was statistically controlled, and could not be accounted for by any difference in sex ratios between groups. Previous findings of an increased rate of immigration in bipolar patients could not be replicated.

Age Factors↗

PubMed1986

A prospective follow-up and family study of somatization in men and women.

The authors evaluated alternative criteria for somatization disorder in 277 female and 129 male psychiatric outpatients. In women, the diagnosis of somatization disorder based on DSM-III criteria was highly concordant with the diagnosis of Briquet's syndrome based on Guze's original criteria. There was familial aggregation for Briquet's syndrome in women but none among individuals of either sex who had somatization disorder without the full Briquet's syndrome. In men, the diagnosis of somatization disorder was rarer and less stable than in women. The findings show that somatization usually has a different clinical picture and different familial antecedents in men than in women.

Ambulatory Care↗

PubMed1986

Psycho-social predictors of chronicity in depressed patients.

Nineteen patients with an episode of major depressive disorder who did not recover within two years of prospective follow-up were compared with an equal number who recovered within a year of the initial evaluation and remained well through the two-year follow-up date. The groups were individually matched for age, sex, primary/secondary status, and prior duration of episode. The only psycho-social variable that predicted chronicity was increased neuroticism on self-report personality inventories administered during the index evaluation. Early loss, recent life events, and recent social supports were not predictive of outcome.

Adult↗

PubMed1986

A follow-up and family study of Briquet's syndrome.

The study began with the systematic clinical evaluation of a cross-section of 500 of the clinic's patients. This was followed by a 'blind' follow-up of the index subjects and a 'blind' study of first-degree relatives. The present report deals with the diagnosis of Briquet's syndrome (hysteria, somatisation disorder) at index, at follow-up, and among first-degree relatives. The data indicate that the criteria used for the diagnosis of Briquet's syndrome select patients who show a high degree of diagnostic consistency over many years, although not all patients who meet these criteria at follow-up receive the diagnosis of Briquet's syndrome initially. Most importantly, the diagnostic criteria select cases associated with a strong familial increase in the risk of Briquet's syndrome and in the risk of antisocial personality. Both are increased among first-degree female relatives, while only antisocial personality is increased among first-degree male relatives.

Antisocial Personality Disorder↗