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Biomedical subjects

S C Zweig

Publications and source records attributed to S C Zweig.

17 recordsLinked to original sources
PubMed2001

Predicting mortality in nursing home residents with lower respiratory tract infection: The Missouri LRI Study.

CONTEXT: Lower respiratory tract infection (LRI) is a leading cause of mortality and hospitalization in nursing home residents. Treatment decisions may be aided by a clinical prediction rule that identifies residents at low and high risk of mortality. OBJECTIVE: To identify patient characteristics predictive of 30-day mortality in nursing home residents with an LRI. DESIGN, SETTING, AND PATIENTS: Prospective cohort study of 1406 episodes of LRI in 1044 residents of 36 nursing homes in central Missouri and the St Louis, Mo, area between August 15, 1995, and September 30, 1998. MAIN OUTCOME MEASURE: Thirty-day all-cause mortality. RESULTS: Thirty-day mortality was 14.7% (n = 207). In a logistic analysis, using generalized estimating equations to adjust for clustering, we developed an 8-variable model to predict 30-day mortality, including serum urea nitrogen, white blood cell count, body mass index, pulse rate, activities of daily living status, absolute lymphocyte count of less than 800/microL (0.8 x 10(9)/L), male sex, and deterioration in mood over 90 days. In validation testing, the model exhibited reasonable discrimination (c =.76) and calibration (nonsignificant Hosmer-Lemeshow goodness-of-fit statistic, P =.54). A point score based on this model's variables fit to the entire data set closely matched observed mortality. Fifty-two percent of residents had low (score of 0-4) or relatively low (score of 5-6) predicted 30-day mortality, with 2.2% and 6.2% actual mortality, respectively. CONCLUSIONS: Our model distinguishes nursing home residents at relatively low risk for mortality due to LRI. If independently validated, our findings could help physicians identify nursing home residents in need of different therapeutic approaches for LRI.

Aged↗
PubMed2001

Clinical findings associated with radiographic pneumonia in nursing home residents.

OBJECTIVE: Subtle presentation and the frequent lack of on-site physicians complicate the diagnosis of pneumonia in nursing home residents. We sought to identify clinical findings (signs, symptoms, and simple laboratory studies) associated with radiographic pneumonia in sick nursing home residents. STUDY DESIGN: This was a prospective cohort study. POPULATION: The residents of 36 nursing homes in central Missouri and the St. Louis area with signs or symptoms suggesting a lower respiratory infection were included. OUTCOME MEASURED: We compared evaluation findings by project nurses with findings reported from chest radiographs. RESULTS: Among 2334 episodes of illness in 1474 nursing home residents, 45% of the radiograph reports suggested pneumonia (possible=12%; probable or definite = 33%). In 80% of pneumonia episodes, subjects had 3 or fewer respiratory or general symptoms. Eight variables were significant independent predictors of pneumonia (increased pulse, respiratory rate =30, temperature =38 degrees C, somnolence or decreased alertness, presence of acute confusion, lung crackles on auscultation, absence of wheezes, and increased white blood count). A simple score (range = -1 to 8) on the basis of these variables identified 33% of subjects (score > or =3) with more than 50% probability of pneumonia and an additional 24% (score of 2) with 44% probability of pneumonia. CONCLUSIONS: Pneumonia in nursing home residents is usually associated with few symptoms. Nonetheless, a simple clinical prediction rule can identify residents at very high risk of pneumonia. If validated in other studies, physicians could consider treating such residents without obtaining a chest radiograph.

Activities of Daily Living↗
PubMed1998

Type 2 diabetes: causes, complications, and new screening recommendations. I.

Type 2 diabetes mellitus, one of the most prevalent and disruptive diseases in our older population, occurs in approximately 10% of persons over age 65. Its cause is usually a combination of deficient insulin production and resistance to insulin. In approximately one-half of those with diabetes, symptoms occur slowly over time and escape diagnosis. Complications include cardiovascular disease with myocardial infarction and stroke, nephropathy, retinopathy, peripheral neuropathy, and sexual dysfunction. Risk factors include age, family history, obesity, and sedentary lifestyle. Screening and early diagnosis are important secondary means of prevention, but physicians should also think about primary prevention based on family history, diet, and physical activity.

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PubMed1998

Type 2 diabetes: treatment goals and pharmaceutical therapies. 2.

The most important treatments for type 2 diabetes remain weight reduction and physical activity, but an increasing armamentarium of drug therapies has much improved our ability to control blood glucose levels. Each of the known metabolic defects in type 2 diabetes can now be treated by different classes of drugs. Although the side effects of these drug therapies are relatively mild and infrequent, physicians need to be on guard for possible problems. Primary care physicians can manage most patients with type 2 diabetes. Specialists in endocrinology, ophthalmology, and podiatry are valuable resources.

Blood Glucose↗
PubMed1998

Type 2 diabetes: patient education and home blood glucose monitoring. 3.

Successful treatment of type 2 diabetes requires the interaction of the patient, his or her family, and a variety of healthcare professionals. Education is the most powerful tool doctors have to convince patients, especially those who are asymptomatic, of the serious complications that can result from uncontrolled diabetes. Home blood glucose monitoring is a key to the doctor-patient partnership. Physicians may have to consider a patient's cultural and dietary customs in developing a manageable program of weight loss, diet, and physical activity, the most effective forms of treatment. Referrals should be made to local diabetes organizations with patient support programs, when available. Patient empowerment and education are key to effective management.

Aged↗
PubMed1998

Mortality from lower respiratory infection in nursing home residents. A pilot prospective community-based study.

BACKGROUND: Lower respiratory infections (LRI) are an important cause of morbidity, mortality, and hospitalization of nursing home residents, yet treatment recommendations have primarily been based on the minority who are hospitalized. We sought to prospectively evaluate risk factors for mortality from LRI in community nursing home residents. METHODS: We studied residents of 10 central Missouri nursing homes (910 beds) from January 1994 to September 1994. Attending physicians authorized nurse evaluations of ill residents who showed symptoms of an LRI. Those residents who met the study definition of LRI received a more detailed assessment and follow ups at 30 and 90 days. RESULTS: The 231 evaluations identified 141 LRIs in 121 individuals. Sixteen (11%) residents died within 30 days of evaluation. The most important univariate predictor of 30-day mortality was severe activities of daily living (ADL) dependency (relative risk = 8.8, 95% confidence interval, 2.55-30.1). Several other clinical and laboratory findings were also significant predictors. In multivariable logistic regression, ADL dependency, respiratory rate, and pneumonia on chest radiograph independently predicted mortality; the model showed good discriminating ability (c = .83). CONCLUSIONS: For nursing home residents with LRI, ADL dependency is an important mortality predictor. Further research with a larger sample should lead to a useful prediction rule for outcome from nursing home-acquired LRI.

Activities of Daily Living↗
PubMed1997

Resident partnerships: an effective strategy for training in primary care.

BACKGROUND AND OBJECTIVES: To facilitate resident training in the ambulatory setting, a few family practice residency programs use a partnership system to train residents. Partnerships are pairs of residents from the same year that rotate together on inpatient services. We identified and characterized the advantages and disadvantages of partnership programs in family practice residencies. METHODS: We conducted a national survey of family practice residencies, followed by phone interviews with residency directors of programs with partnerships. RESULTS: A total of 305 of 407 (75%) residencies responded; 10 programs fit our definition of partnership. Program directors were positive about resident partnerships. Benefits included improved outpatient continuity, enhanced medical communication skills, and emotional and intellectual support. Disadvantages were decreased inpatient exposure and difficulty coordinating residents' schedules. CONCLUSIONS: Directors were favorable about partnerships, which seem to be an underutilized technique to improve residency training.

Family Practice↗
PubMed1993

Who cares for Missouri's Medicaid nursing home residents? Characteristics of attending physicians.

OBJECTIVE: To describe the characteristics of physicians attending Medicaid recipients in Missouri's certified nursing homes (NH). DESIGN: Retrospective survey of multiple data sources. SETTING: Missouri's certified nursing homes. PARTICIPANTS: 1,339 physicians attending 22,452 Medicaid recipients. MEASUREMENTS: Physician characteristics were determined by reviewing a roster of medical directors of NHs compiled by the Missouri Department of Social Services' Division of Aging and physician directories compiled by the Missouri State Board of Registration for the Healing Arts, the AMA, the AOA, the ABFP, and the ABIM. Physician clinical activity was determined by examining NH inspection of care reports compiled by the Missouri Department of Social Services' Division of Aging. RESULTS: Each physician attended a mean of 16.8 and a median of six Medicaid recipients in the nursing home. The skewed distribution is reflected by 426 (31.8%) of the physicians attending only one or two residents, and 28 (2.1%) of the physicians attending 100 or more residents. Twenty-seven percent of the state's licensed osteopaths (DOs, 362) attended nursing home patients, compared with 11% of allopathic physicians (MDs, 977). Significantly more DOs than MDs attended more than the median number of patients (57% vs 45%, P < 0.001). Half were attended by the 605 (45%) physicians without board certification. Of those who were board certified, family physicians were more likely to include Medicaid nursing home patients in their practices than internists (43% vs 18%, P < 0.001). Physicians licensed for 11 to 20 years and rural physicians had the heaviest patient loads. CONCLUSIONS: Many doctors are caring for very few nursing home residents while a few doctors may be caring for too many patients. In addition, half the Medicaid recipients residing in Missouri's nursing homes in 1988 were attended by physicians without board certification, and almost one-third were attended by physicians who may be retiring between 2000 and 2010.

Aged↗
PubMed1989

Analysis of resident and attending physician interactions in family medicine.

Clinical teaching does not fit neatly into traditional teaching-learning models. The interaction between a resident and an attending physician is of particular interest because it has several functions including education, supervision, socialization, and quality control. The purpose of this study was to observe, classify, and record verbal teaching and learning behaviors in the resident-attending physician interaction. During a 12-month period, 125 observations of resident-attending physician interactions were recorded; the average length of the interactions was 4.27 minutes. The six most frequent resident verbal behaviors compared by postgraduate year level did not vary significantly. Only one of the six most frequent attending physician verbal behaviors varied significantly. In the average interaction of about 4 minutes, three fourths of the interaction was on patient care issues, leaving little time for teaching. There are many unanswered questions about the resident-attending physician interaction and its contribution to the training of a physician.

Family Practice↗
PubMed1987

A randomized controlled evaluation of an educational program in adults with high psychosocial risk of morbidity.

This clinical trial tested the efficacy of a psychosocial intervention in a panel of white adults with a high level of recent stressful life changes and weak social supports. One hundred seventy users of three family practices were randomly assigned to receive a six-month educational program provided by a nurse practitioner or to a control group. Outcome variables were assessed over a 12-month follow-up period by mailed questionnaires and validated when possible by review of medical records. During the six months immediately following the intervention, recipients had a lower rate of restricted-activity days than controls. During the follow-up period, symptom experience, physical function, social function, and emotional function were similar in the two groups. While the overall improvement in social supports was not significantly better at the completion of the intervention for recipients than for controls, those recipients who developed strong supports had fewer restricted-activity days than those who continued to have weak supports. This educational program may provide temporary benefit to adults with high psychosocial risk for health impairment.

Adult↗
PubMed1986

Evaluation of a health status measure in adults with high psychosocial risk.

The 63-item Duke UNC Health Profile assesses four dimensions of health status: presence of symptoms, physical function, social function, and emotional function. This instrument was developed for use in primary care research. We have tested its value in a primary care setting among individuals with suspected increased risk of health problems. In a group of 65 white adults with high life changes and weak social supports, this scale produced relatively stable functional status scores over fifteen months. In addition, functional status scores derived from this instrument were strongly correlated with cumulative six-month self-reported morbidity. These findings suggest that the Duke-UNC Health Profile is an acceptably reliable and valid measure of health status for adults with high psychosocial risk of health impairment.

Adult↗
PubMedDate not supplied

Community attitudes and knowledge about advance care directives.

BACKGROUND: Patients and their physicians are increasingly being encouraged to discuss end-of-life decisions. The purpose of this study was to enhance understanding of the public's attitudes and knowledge about medical decision making and advance care directives. METHODS: Eight focus groups of community members discussed their understanding of and attitudes about advance care directives. Transcripts of these discussions were analyzed using coding categories created from the transcripts. RESULTS: Eighty-three people attended the focus groups. Most discussions of advance care directives involved family members in the setting of family or personal illness. Elderly persons commonly confused wills with living wills. Most who had given advance directives did so either to make others follow their wishes or to ease family burdens. Among the great variety of reasons for not using advance directives was a perceived lack of personal relevance, as well as conceptual, moral, and practical difficulties. Participants were divided about whether it was appropriate for physicians to initiate discussions about life-sustaining care with their patients. We discerned three themes affecting individuals' opinions about personal decision making about advance directives: (1) trust in family and the medical system, (2) need for control, and (3) knowledge about advance directives. CONCLUSIONS: Although living wills are advocated by many authorities, and many of our participants endorsed their use, our participants also cited numerous cautions and impediments to their use. As the role of advance care directives changes, physicians will need to be aware of their patients' perceptions, as well as the legalities of these documents.

Adult↗
PubMedDate not supplied

A process evaluation of a required primary care clerkship.

A process evaluation was implemented to guide faculty in developing a new required primary care clerkship. During the first eight months of the clerkship, 23 medical students were observed in a time and motion analysis and a study of the verbal content of the precepting interactions as students presented their patients to a preceptor. Students spent an average of 44% of their clinic time in examination rooms with patients, 21% interacting with preceptors and 13% waiting without interaction. The verbal behaviors accounting for 80% of the student-preceptor interaction time were case presentations (50%), direct or indirect questioning (16%), and making recommendations for management (13%).

Ambulatory Care↗
PubMedDate not supplied

Activities of the attending physician in the ambulatory setting: what part is teaching?

The attending physician is a valuable resource in the ambulatory care teaching setting. To describe the nature of attending physician activities, seven faculty physicians were observed during 214 three-hour clinic sessions at two sites of a family medicine training program. Only 53% of attending physician time involved clinical teaching activities, with only half of this portion spent in consultation with or seeing the patients of trainees. The patient volume of the clinic session did not affect total time spent in consultation, but the rate at which trainees consulted attending physicians decreased during busier sessions. This study represents a first step toward understanding the educational, organizational, and economic implications of attending physician activities in the ambulatory setting.

Ambulatory Care Facilities↗
PubMedDate not supplied

Epidemiologic inquiry: observational studies.

A major objective of epidemiologic investigation is to determine whether or not an association between an exposure and a condition exists in a human population. The presence of such an association cna be explored using three distinct strategies, the cohort, the case-control, and the cross-sectional approaches. This paper describes each of these research designs and discusses their advantages and disadvantages.

Epidemiologic Methods↗
PubMedDate not supplied

Resident partnerships: a tool for enhancing ambulatory training.

BACKGROUND AND OBJECTIVES: This study examined resident partnerships and their effect on graduates' practice patterns. METHODS: The study authors surveyed graduates from a residency program that used resident partnerships. We also surveyed the graduates' current practice partners, and they served as a comparison group. RESULTS: The graduates' response rate was 86%, and their current practice partners' response rate was 61%. Graduates from a partnership program rated themselves better trained for outpatient medicine and more comfortable communicating with other physicians and working within a patient care team; they were also slightly less likely to practice inpatient medicine. Reported benefits during residency included enhanced availability for continuity clinics, more emotional and intellectual support, and more flexible work schedules. CONCLUSIONS: Graduates valued partnerships during their training and reported being better prepared to work with other physicians in ambulatory settings.

Adult↗