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The validity and clinical use of a recently developed instrument to assess health care needs of patients with a physical illness, called INTERMED, is investigated. The INTERMED combines data reflecting patients' biological, psychological, and social characteristics with information on health care utilization characteristics. An example of a patient population in which such an integral assessment can contribute to the appropriateness of care, are patients with low back pain of degenerative or unknown origin. It supports the validity and the clinical usefulness of the INTERMED when clinically relevant subgroups in this heterogeneous population can be identified and described based on their INTERMED scores. The INTERMED was utilized in a group of patients (N = 108) having low back pain who vary on the chronicity of complaints, functional status, and associated disability. All patients underwent a medical examination and responded to a battery of validated questionnaires assessing biological, psychological, and social aspects of their life. In addition, the patients were assessed by the INTERMED. It was studied whether it proved to be possible to form clinically meaningful groups of patients based on their INTERMED scores; for this, a hierarchical cluster analysis was performed. In order to clinically describe them, the groups of patients were compared with the data from the questionnaires. The cluster analysis on the INTERMED scores revealed three distinguishable groups of patients. Comparison with the questionnaires assessing biological, psychological, and social aspects of disease showed that one group can be characterized as complex patients with chronic complaints and reduced capacity to work who apply for a disability compensation. The other groups differed explicitly with regard to chronicity, but also on other variables. By means of the INTERMED, clinically relevant groups of patients can be identified, which supports its use in clinical practice and its use as a method to describe case mix for scientific or health care policy purposes. In addition, the INTERMED is easy to implement in daily clinical practice and can be of help to ease the operationalization of the biopychosocial model of disease. More information on its validity in different patient populations is necessary.

The purpose of this paper is to describe the development and to test the reliability of a new method called INTERMED, for health service needs assessment. The INTERMED integrates the biopsychosocial aspects of disease and the relationship between patient and health care system in a comprehensive scheme and reflects an operationalized conceptual approach to case mix or case complexity. The method is developed to enhance interdisciplinary communication between (para-) medical specialists and to provide a method to describe case complexity for clinical, scientific, and educational purposes. First, a feasibility study (N = 21 patients) was conducted which included double scoring and discussion of the results. This led to a version of the instrument on which two interrater reliability studies were performed. In study 1, the INTERMED was double scored for 14 patients admitted to an internal ward by a psychiatrist and an internist on the basis of a joint interview conducted by both. In study 2, on the basis of medical charts, two clinicians separately double scored the INTERMED in 16 patients referred to the outpatient psychiatric consultation service. Averaged over both studies, in 94.2% of all ratings there was no important difference between the raters (more than 1 point difference). As a research interview, it takes about 20 minutes; as part of the whole process of history taking it takes about 15 minutes. In both studies, improvements were suggested by the results. Analyses of study 1 revealed that on most items there was considerable agreement; some items were improved. Also, the reference point for the prognoses was changed so that it reflected both short- and long-term prognoses. Analyses of study 2 showed that in this setting, less agreement between the raters was obtained due to the fact that the raters were less experienced and the scoring procedure was more susceptible to differences. Some improvements--mainly of the anchor points--were specified which may further enhance interrater reliability. The INTERMED proves to be a reliable method for classifying patients' care needs, especially when used by experienced raters scoring by patient interview. It can be a useful tool in assessing patients' care needs, as well as the level of needed adjustment between general and mental health service delivery. The INTERMED is easily applicable in the clinical setting at low time-costs.

The legal criteria for civil commitment dictates that individuals must be mentally ill, and either a danger to themselves, a danger to others, or substantially impaired in their ability to provide for their basic needs. These criteria, which have been adopted as medical necessity criteria by managed care programs, may result in a change in the clinical mix of the psychiatric inpatient population. The present study assesses the incidence of dangerousness among psychiatric inpatients and compares dangerous and nondangerous patients in terms of characteristics and treatment outcomes. The results indicate that for a large regional managed care program, 30% of psychiatric inpatients have a history of dangerousness in the past year. Patients who are rated as dangerous to others during admission have higher rates of complications for treatment and psychiatric disorders such as residential and vocational instability, family disruption, and higher premorbid dysfunction. They are also more likely to engage in disruptive and aggressive behavior during their hospital stays. Despite the higher incidence of acute and long-term dysfunction for dangerous patients, their hospitalization length of stay was comparable to that of patients not rated as dangerous.

A study of 316 consultation cases was undertaken to examine the concordance between the psychiatric consultants' recommendations and the consultees' follow-through. Using a model of case concordance (defined as the proportion of all recommendations followed on each case), it was demonstrated that process variables, including who (the referring doctor p < or = 0.07) recommended what (psychosocial ward management p < 0.01, psychosocial diagnostic action p < 0.01, biological diagnostic action p < 0.01, aftercare p < or = 0.02, and number of recommendations p < or = 0.03), and when (timing of consultation p < or = 0.02), were the significant predictors of case concordance rather than clinical or demographic variables.

A series of 511 consultations to a psychiatric consultation-liaison service was studied. Patients diagnosed with substance abuse disorders were found more likely to be younger, male, and nonwhite. Payer status was not significantly different. Psychiatric consultants' recommendations for substance abuse patients more often consisted of aftercare referral, with less utilization of nonmedical consultations, environmental manipulations, social support, and psychological testing. Further, nonsubstance abusers received more and longer follow-up visits. Overall length of stay was shorter for substance-abuse cases, and for nonabusing cases earlier consultation was associated with briefer hospital stay. The authors discuss factors that may explain these findings, and urge psychiatric consultants to rethink their approach to these patients. A thorough, thoughtful diagnostic evaluation and consideration of a variety of interventions is always indicated.

Convincing evidence exists that psychosocial factors have a major impact on both outcome and costs in the medical/surgical services in general hospitals. This paper describes the Human Services Department's impact on social work and consultation-liaison psychiatry, using a data-based management system across five specialties: 1) social work; 2) consultation-liaison psychiatry; 3) supportive care (hospice); 4) home care (home health discharge planning); and 5) pastoral care, which offers opportunities for research and quality assurance monitoring. Time spent in service delivery was used to estimate the cost per hour: 1) pastoral care $96; 2) social work $36; 3) consultation-liaison psychiatry $59; 4) home care $49. Referral to social work was preferred for a range of family and discharge planning services. Consultation-liaison services were preferred for depression, paranoid behavior, and management problems. Referral overlap was noted for "coping with diagnosis" for social work and consultation-liaison psychiatry. Using a computerized data base format for documenting the referral process, work accomplished, and time spent among those services providing mental health care in the general hospital permits the observation of redundancy of services delivered and their costs.

The relationship among recent life stress, social support, a patient's locus of control, and the control of blood glucose is evaluated in persons with diabetes mellitus, using objective measures of these psychosocial variables. Short-term [fasting blood sugar (FBS)] and long-term [glycosylated hemoglobin (Hgb A-1C)] control measures are taken at two points in time in order to evaluate the effects of the psychosocial variables on change in diabetes control. For life events, a significant positive association was found between the number of recent life events and blood glucose control. Decrease in social support predicted a worsening of longer-term (Hgb A-1C) control over time. An external locus of control within the patient was associated both with poor short-term control at time one and prediction of poorer long-term control over time. The implications of these findings are discussed in support of a biopsychosocial approach to the management of diabetes mellitus.

The microcomputer allows for the design of a system that functions integrally with both the day-to-day and long-term needs of a consultation-liaison psychiatric service. This article describes a microcomputer system and data structure that can accomplish many of the same research tasks as a minicomputer system. In addition, the same data item inputs can be used to develop management reports that can facilitate the administrative as well as the pedagogic needs of a consultation-liaison service. Because of the daily availability and review of output reports, supervisors' corrections are made that enhance the reliability of the data. The program format provides 1) an intake form with pertinent identifying demographic data; 2) an activity file that contains every encounter between the consultant and the patient as well as research, supervisory, and liaison activities (which permit cost-effectiveness analysis); 3) a master clinical data base containing 255 variables for each case seen; 4) a computer-generated chart note; 5) letters to referring physicians; 6) clinical activity descriptions for billing; and 7) a file for pertinent literature searches. Since certain analyses may be limited in the microsystem, its interactive capacity with mainframe computers allows for complex functions. The microsystem described presently emphasizes flexibility, accessibility, and step-by-step development of files as needed by a particular consultation-liaison service. Finally, microcomputers are available at a fraction of the cost of the minicomputer or mainframe systems.

This article describes an innovative administrative organization for the delivery of psychologic care in the contemporary teaching hospital that, by combining services under medical leadership, takes an evolutionary beyond multidisciplinary team approaches. The long-range goal of this organization is to provide cost-effective psychosocial services in the general hospital while maintaining the unique role contributions of the participating disciplines. To allow for informed decision making in this process, the initial step has been to establish a collaborative data base for patient and staff tracking, program planning, and evaluation.

This article presents research involving the comparison of levels of occupational stress across multiple units of a large teaching hospital. Using a scale designed to measure a four-component model of occupational stress in medical environments, the results indicated that a significant amount of the variation in this measure was accounted for by the unit on which the respondent worked. There were no significant differences across levels of employment (e.g., housestaff, nurse clinician, registered nurse, licensed practical nurse, clerk).

A strategy of determining the value of psychiatric consultation services in the general hospital is presented. Value analysis, a theoretically driven model for establishing the worth of mental health services from multiple perspectives, is used to propose a value matrix for consultation psychiatry. Based on an integration of decision theory and evaluation science, the goal of value analysis is to establish a range of outcomes that might be viewed as important from various perspectives. This hypothesized matrix of economic and clinical values for patients, families, medical staff, providers, payors, and society provides a framework for evaluating outcomes of psychiatric consultation services.

Three hundred twenty-one patients with traumatic head and spinal cord injuries were studied. Forty-two of these patients (13.1%) received psychiatric consultation services. Two types of consultation patients were identified--one receiving psychiatric consultation services in the acute-care hospital and one receiving psychiatric services in the post-acute care, long-term rehabilitation center. In order to assess the impact of psychiatric co-morbidities on hospital length of stay and charges, 40 consultation patients (23 acute and 17 rehabilitation) were matched to 87 control patients who received no psychiatric services. Matching was done on severity of injury, age, and sex. Psychiatric consultation cases had significantly longer stays than did matched controls. There were no differences on total charges.

Four hundred nineteen consecutive consult cases were studied to determine the relationship of the timing of the consult to hospital length of stay. Results indicated that earlier consultations predicted shorter lengths of stay. Applications of the present methodology to more complex evaluations of psychiatric consultation are discussed.

The present study details the development of a stress scale for medical personnel. The Medical Personnel Stress Scale is a 48-item subjective stress measure capable of assessing both organizational and individual dimensions of stress. It demonstrated both the ability to discriminate between divergent medical emergency room organizations and to predict self reported on-the-job difficulties.

In light of the increasing emphasis on cost-effectiveness evaluations of consultation-liaison interventions, it becomes important for researchers to be cognizant of the available statistical methods. With this in mind, the present article reviews eight strategies of cost-effectiveness research and discusses their relative strengths and liabilities.