Thomas L. Schwenk

Physical activity and mental health: current concepts.

AbstractPhysical activity may play an important role in the management of mild-to-moderate mental health diseases, especially depression and anxiety. Although people with depression tend to be less physically active than non-depressed individuals, increased aerobic exercise or strength training has been shown to reduce depressive symptoms significantly. However, habitual physical activity has not been shown to prevent the onset of depression. Anxiety symptoms and panic disorder also improve with regular exercise, and beneficial effects appear to equal meditation or relaxation. In general, acute anxiety responds better to exercise than chronic anxiety. Studies of older adults and adolescents with depression or anxiety have been limited, but physical activity appears beneficial to these populations as well. Excessive physical activity may lead to overtraining and generate psychological symptoms that mimic depression. Several differing psychological and physiological mechanisms have been proposed to explain the effect of physical activity on mental health disorders. Well controlled studies are needed to clarify the mental health benefits of exercise among various populations and to address directly processes underlying the benefits of exercise on mental health.

Prevalence, nature, and comorbidity of depressive disorders in primary care

This article examines the prevalence, nature, and comorbidity of depressive disorders using DSM-III-R criteria among patients recruited from the waiting rooms of family physicians. A total of 1928 family practice patients completed a screening form including the Center for Epidemiologic Studies-Depression Scale (CES-D), and patients with elevated CES-D scores were oversampled for possible interviews using the Structured Clinical Interview for the DSM-III-R (SCID). In the resulting weighted sample of 425, a prevalence of 13.5% was obtained for major depression and 22.6% for all depressive disorders. Over 40% of the patients with major depressive disorder (MDD) were only mildly depressed. Gender and other demographic variables failed to distinguish depressed patients, but a variety of self-ratings did. Depression was associated with comorbid anxiety disorders and substance abuse. Results are discussed in terms of the implications of depression in primary care as a public health problem, but also in terms of some diagnostic issues, particularly the use of an impairment criterion for major depression.

Adherence to Maintenance-Phase Antidepressant Medication as a Function of Patient Beliefs About Medication

PURPOSE This study aimed to identify the demographic, psychiatric, and attitudinal predictors of treatment adherence during the maintenance phase of antidepressant treatment, ie, after symptoms and regimen are stabilized. METHODS We surveyed 81 primary care patients given maintenance antidepressant medications regarding general adherence, recent missed doses, depression and treatment features, medication beliefs (necessity, concerns, harmfulness, and overprescription), and other variables. Additional data were collected from medical and payer records. RESULTS Median treatment duration was 75 weeks. Adherence and beliefs were broadly dispersed and unrelated to treatment duration and type, physical functioning, and demographics. Multivariate analysis adjusting for social desirability, depression severity, and treatment duration indicated that an antidepressant-specific “necessity-minus-concerns” composite was strongly associated with both adherence outcomes. Specifically, adherence was highest when necessity exceeded concerns and lowest when concerns exceeded necessity. We crossed these 2 dimensions to characterize 4 patient attitudes toward antidepressants: skepticism, indifference, ambivalence, and acceptance. CONCLUSIONS Patients given maintenance antidepressants vary widely in adherence. This variation is primarily explained by the balance between their perceptions of need and harmfulness of antidepressant medication, in that adherence is lowest when perceived harm exceeds perceived need, and highest when perceived need exceeds perceived harm. We speculate on ways to tailor adherence strategies to patient beliefs. Subsequent research should determine whether patients’ perceptions about medication predict depression outcomes, can be used to improve clinical management, and respond to behavioral intervention.

Hospital Care for Parents After Perinatal Death

OBJECTIVE: To systematically review parent experiences with hospital care after perinatal death. DATA SOURCES: An evaluation of more than 1,100 articles from 1966 to 2006 was performed to identify studies of fetal death in the second or third trimester and neonatal death in the first month of life. METHODS OF STUDY SELECTION: Studies were limited to those that were in English, evaluated care in U.S. hospitals, and contained direct parent data or opinions. TABULATION, INTEGRATION, AND RESULTS: Results were compiled on five aspects of recommended care: 1) obtaining photographs and memorabilia of the deceased infant, 2) seeing and holding the infant, 3) labor and delivery of the child, 4) autopsies, and 5) options for funerals or memorial services. Sixty eligible studies with over 6,200 patients were reviewed. In general, parents reported appreciating time and contact with their deceased infant, being given options about labor, delivery, and burial, receiving photographs and memorabilia, and having appropriate hospital follow-up after autopsy. CONCLUSION: Although care after perinatal death often adheres to published guidelines, substantial room for improvement is apparent. Parents with perinatal losses report few choices during labor and delivery and inadequate communication about burial options and autopsy results. Hospitals, nurses, and doctors should increase parental choice about timing and location of delivery and postpartum care, encourage parental contact with the deceased infant, and facilitate provision of photos and memorabilia.

Differences between detected and undetected patients in primary care and depressed psychiatric patients

The aim of this study was to explore differences between primary care and tertiary psychiatry patients meeting DSM-III-R criteria for depressive disorders in terms of a wide range of demographic and clinical variables including psychiatric comorbidity. A weighted sample of 153 depressed primary care patients was obtained from the waiting rooms of family physicians using a two-stage selection and assessment procedure including the Structured Clinical Interview for the DSM-III-R (SCID). A measure of physician detection was also obtained. The 123 depressed psychiatric patients were seeking evaluation and treatment at a university-based depression program, and DSM-III-R diagnoses were also obtained using the SCID. Overall, fewer depressed primary care patients met criteria for major depressive disorder, and more of those who did were only midly depressed. Depressed primary care patients were more likely to be women, older, and had less education, less past treatment, and greater lifetime comorbidity. Clinical differences were greatest for the depressed patients who had gone undetected by their physicians: they were higher functioning, less distressed, and more mildly depressed. Findings are discussed in terms of the validity and acceptability of practice guidelines for depression in primary care.

Depression in primary care--more like asthma than appendicitis: the Michigan Depression Project.

Objective: To explore the relationships between detection, treatment, and outcome of depression in the primary care setting, based upon results from the Michigan Depression Project (MDP). Methods: A weighted sample of 425 adult family practice patients completed a comprehensive battery of questionnaires exploring stress, social support, overall health, health care utilization, treatment attitudes, self-rated levels of stress and depression, along with the Center for Epidemiologic Studies Depression Scale (CES-D), the Hamilton Rating Scale for Depression (HAM-D), and the Structured Clinical Interview for DSM-III (SCID), which served as the criterion standard for diagnosis. A comparison sample of 123 depressed psychiatric outpatients received the same assessment battery. Family practice patients received repeated assessment of depressive symptoms, stress, social support, and health care utilization over a period of up to 60 months of longitudinal follow-up. Results: The central MDP findings confirm that significant differences in past history, severity, and impairment exist between depressed psychiatric and family practice patients, that detection rates are significantly higher for severely depressed primary care patients, and that clinicians use clinical cues such as past history, distress, and severity of symptoms to “detect” depression in patients at intermediate and mild levels of severity. As well, there is a lack of association between detection and improved outcome in primary care patients. Conclusion: These results call into question the assumption that “depression is depression” irrespective of the setting and physician, and they are consistent with a model of depressive disorder as a subacute or chronic condition characterized by clinical parameters of severity, staging, and comorbidity, similar to asthma. This new model can guide further investigation into the epidemiology and management of mood disorders in the primary care setting.

The nature and prevalence of anxiety disorders in primary care

Primary goals of this study were to 1) establish the prevalence, nature, and correlates of anxiety disorders in primary care, and 2) examine the comorbidity of anxiety disorders with major depressive disorder. A weighted sample of 425 patients drawn from the waiting rooms of primary care physicians was used. Anxiety disorders were highly prevalent, relatively mild, and often comorbid with depression. Anxiety disorders aided physicians in their detection of depression. However, anxiety disorders were also misdiagnosed as depression. Although anxiety disorders are common in primary care, their relative mildness may generally not warrant increased attention by primary care physicians to detection and treatment. Instead, efforts should be focused on the more severe and impairing cases of anxiety disorder.

The relationship of distress to mood disturbance in primary care and psychiatric populations

Disagreement remains as how to interpret elevated scores on measures of self-reported distress. This study compared elevated scores on the Center for Epidemiologic Studies-Depression Scale (CES-D) in 2 samples to mood disturbance as assessed in an interview. In a primary medical care sample, most distressed patients did not have a mood disturbance, and distress without mood disturbance was associated with little impairment. Primary care patients with elevated scores on the CES-D were less distressed and less likely to have mood disturbance, major depression, or impairment than distressed psychiatric patients. Few patients with mood disturbance in either sample failed to meet criteria for major depression. Implications are discussed for research on depression using self-report measures, for generalizations across clinical and nonclinical populations, and for screening for preventive interventions.

Teaching and learning in the ambulatory setting

Changes in how and where health care is delivered have had an adverse effect on the traditional inpatient-based clinical education of medical students. Increasingly, medical educators are turning to ambulatory-based educational experiences as viable and useful adjuncts to the inpatient wards. However, when planning and developing an ambulatory clerkship, careful attention must be paid to the desired outcomes from the experience, the appropriate site, and instructional model to use to best meet the objectives. This report explores (1) the major differences between ambulatory and inpatient educational settings, (2) potential educational outcomes of clinical teaching in the ambulatory setting, (3) instructional models that can be used to meet educational objectives, (4) the potential barriers and critical issues that must be considered when implementing ambulatory educational experiences, and (5) evaluation strategies for measuring the educational outcome.

Physician experience with family presence during cardiopulmonary resuscitation in children.

Objective: Family presence during cardiopulmonary resuscitation in children is an emerging practice. Although many hospitals allow this practice, there is scant research on physician attitudes and opinions and on physician views about training for resident physicians. Design: Survey method. Setting: University and community settings. Patients: We randomly selected 1,200 pediatric critical care and emergency medicine providers from professional association mailing lists. Intervention: The providers were mailed up to two written surveys and two reminder cards. The survey consisted of 40 multiple-choice and short-answer questions about demographics, past experiences, and opinions on pediatric family presence. Measurements and Results: Of 1,200 surveys mailed, 521 were completed (43.4%) and 73 (6.1%) respondents returned the form declining to participate. More than 99% of respondents were physicians. Four hundred and thirty-three respondents (83%) reported participation in pediatric resuscitation with family members present, with a mean of 15 episodes ever and three episodes within the last year. Of those who had ever participated, more than half thought it was helpful for the family, and two thirds believed that parents wanted the option. Ninety-three percent would allow family presence in some situations. Seventy-four percent believed family presence would be stressful for a resident physician, but nearly 80% believed that residents working with children should be educated in this area. Conclusions: Family presence during cardiopulmonary resuscitation in children is not an uncommon experience for health care providers. Most respondents had resuscitated a child with family members present. The majority thought that presence was helpful to parents and that residents should be trained in this practice.