Influence of salt concentration on the cellular fatty acid composition of the moderately halophilic bacterium Halomonas salina

CONTEXT: Little is known about the problems physicians may be encountering in gaining access to managed care networks and whether the process used by managed care plans to select physicians is discriminatory. OBJECTIVE: To investigate the incidence and predictors of denials or terminations of physicians' managed care contracts and the impact these denials and terminations had on primary care physicians' involvement with managed care. DESIGN: Cross-sectional mail survey of a probability sample of primary care physicians. SETTING: A total of 13 large urban counties in California. PARTICIPANTS: Primary care physicians (family practice, internal medicine, obstetrics and gynecology, or pediatrics) who work in office-based practice. MAIN OUTCOME MEASURES: Denial or termination from a contract with an independent practice association (IPA) or health maintenance organization (HMO) and managed care contracts. RESULTS: Of the 947 respondents (response rate, 71%), 520 were involved in office-based primary care. After adjusting for sampling and response rate, 22% of primary care physicians had been denied or terminated from a contract with an IPA or HMO, but 87% of office-based primary care physicians had at least 1 IPA or direct HMO contract. Solo practice was the strongest predictor of having experienced a denial or termination and of having neither an IPA nor a direct HMO contract. Physician age, sex, and race did not predict the level of involvement with managed care. However, physicians' patient demographics were associated with managed care participation; physicians in managed care had significantly lower percentages of uninsured and nonwhite patients in their practices. Physicians experiencing a denial or termination had fewer capitated patients in their practice. CONCLUSIONS: Denials and terminations, although relatively common, do not preclude most primary care physicians from participating in managed care. Managed care selective contracting does not appear to be systematically discriminatory based on physician characteristics, but it may be biased against physicians who provide greater amounts of care to the underserved.     

The measurement of constitutive and facultative skin pigmentation and estimation of sun exposure in Caucasians with basal cell carcinoma and cutaneous malignant melanoma

OBJECTIVES: The purpose of this study was to examine the dimensions of physician work satisfaction across a variety of medical specialties and practice settings. METHODS: A modified version of the Scheckler et al survey instrument was mailed to all physicians in Marion County, Indiana. Forty-two percent (777) of the eligible physicians responded. Exploratory factor analysis and internal consistency measures were used to assess the instrument's validity and reliability. Multivariable linear regression was used to predict global and summary scale scores. RESULTS: Four dimensions of physician work satisfaction were identified: relationships with patients (k = 6, alpha = 0.81), autonomy in clinical decision-making (k = 8, alpha = 0.81), office resources (k = 7, alpha = 0.87), and professional relationships (k = 5, alpha = 0.82). Most (73%) of the physicians were satisfied with their overall practice, and the majority were also satisfied with their income. Significant differences were observed in the sources and magnitude of physician work satisfaction across medical specialty, practice setting, and financial arrangement. Physicians in private practice were most satisfied with their overall practice and office resources, whereas physicians in health maintenance organizations (HMOs) were most satisfied with their autonomy in clinical decision-making. Physicians not working in HMOs but having a large percentage of patients with capitated reimbursement were not enthusiastic about the effect of managed care on their medical practice. Among primary care physicians, family practitioners and general internists were generally less satisfied, and general pediatricians were generally more satisfied with most aspects of their medical practices. CONCLUSIONS: The modified version of the Scheckler et al instrument is a reliable and valid measure of physician work satisfaction. Increases in the market share of managed care have differentially affected the work satisfaction of physicians based on their medical specialty, practice setting, and financial arrangements.     

Physicians'' experiences and beliefs regarding informal consultation

CONTEXT: Efforts to control medical expenses by emphasizing primary care and limiting specialty care may influence how physicians use informal or "curbside" consultation. OBJECTIVE: To understand physicians' use of and beliefs about informal consultation. DESIGN: Survey mailed in July 1997. PARTICIPANTS: Of a random sample of Massachusetts general internists, pediatricians, cardiologists, orthopedic surgeons (n=300 each), and infectious disease specialists (n=200) surveyed, 1225 were eligible and 705 (58%) responded. MAIN OUTCOME MEASURES: Self-reported use of and beliefs about informal consultation. RESULTS: Generalist physicians requested more informal consultations than specialists (median, 3 vs 1 per week; P<.001) and were asked to provide fewer (2 vs 5 per week; P<.001). In multivariate analyses, physicians in a health maintenance organization, multispecialty group, or single-specialty group requested more informal consultations than those in solo practice (82%, 40%, and 28% more, respectively; all P<.001) and were more often asked to provide them (43%, 63%, and 14% more, respectively; all P<.05). Physicians with at least 30% of their income from capitation requested 38% more and were asked to provide 46% more informal consultations than those with little or no income from capitation (both P<.001). Generalists' overall approval of informal consultation was greater than specialists' (mean 5.9 vs 5.1 on a 7-point Likert scale; P<.001), and approval was strongly associated with beliefs about how informal consultation affects quality of care (P<.001). CONCLUSIONS: Use of informal consultation is common, varies by specialty, practice setting, and capitation, and therefore may increase with current trends toward group practice and managed care. Because overall approval of informal consultation is strongly associated with beliefs about how it affects quality of care, this issue should be carefully considered by physicians who participate in informal consultation.     

Capitated reimbursement for medical services returns control of the patient to the surgeon

Limiting the spending on healthcare services is a societal necessity, whether externally budget-driven with reduced fee for service or salary, or internally controlled through prospective payment capitation. No reimbursement system is inherently good or bad. Ethical physicians will place patient well-being first and focus on the delivery of quality care, regardless of the payment method. There are several methods for the distribution of capitation payments to physicians, each with different levels of financial incentive to provide services. In one fully evolved embodiment of capitation, a payer carves out the entire orthopedic disease segment and contracts with an orthopedic organization for all musculoskeletal services within a defined geographic region. This form of capitation offers the advantage of returning control of patient care to the orthopedic surgeon.     

Outcome for people with schizophrenia before and after Medicaid capitation at a community agency in Colorado

OBJECTIVE: To investigate the effect of a capitated funding mechanism for the psychiatric care of Medicaid recipients, a study of outcome, satisfaction, and service utilization among adults with schizophrenia and schizoaffective disorder was conducted at a Colorado agency before and after the introduction of the new funding mechanism. METHODS: Two random samples of 100 clients each were selected, one a year before capitation was introduced and one a year after. Subjects were interviewed about their quality of life, needs, and service satisfaction. Psychopathology and service utilization were also measured. RESULTS: Psychopathology was lower after capitation in most dimensions. The number of subjects admitted to the hospital during a six-month period beginning a year after capitation was 57 percent lower than in the equivalent period before capitation, with no increase in the amount of outpatient treatment provided. Subjects reported improved quality of life in the domains of work, finances, and social relations. Significant changes in needs or service satisfaction were not detected. CONCLUSIONS: No evidence was found that Medicaid capitation had an adverse effect on the client population after one year. Findings suggested that capitation led to an efficient use of treatment resources.     

Comparison of patient satisfaction with ambulatory visits in competing health care delivery settings in Geneva, Switzerland

OBJECTIVES: To measure satisfaction with medical visits in various health care settings and to assess the extent to which differences in satisfaction scores between health care settings can be attributed to patients' characteristics. DESIGN: This was a cross sectional survey to measure seven dimensions of patient satisfaction. SETTINGS: Ambulatory visits to 'gatekeepers' or specialists in a newly established managed care organisation, a private group practice, or a university hospital outpatient clinic in Geneva, Switzerland. PATIENTS: There were altogether 1027 adult patients (81% participation rate). RESULTS: Patients who consulted physicians in the private group practice reported higher levels of satisfaction (overall mean 83.2 on a scale between 0 and 100) than university clinic patients (79.7), patients of independent specialists within the managed plan (78.5), and patients of managed plan gatekeepers (69.8, intergroup differences p < 0.001). Differences between settings were reduced after adjustment for sex, age, country of origin, general practitioner versus specialist visit, and scheduled versus urgent visit (adjusted scores: 80.8, 78.8, 77.6, and 72.7 in the four settings, p < 0.001). Intergroup differences were largest for general satisfaction, but small and non-significant for satisfaction with explanations given by the physician and for time spent with the patient. CONCLUSIONS: Patient satisfaction varied widely between health care settings. Differences in satisfaction ratings could be ascribed only partly to disparities in patient populations. Patients of managed plan gatekeepers were least satisfied, presumably because they could not choose their physician freely. Comparison of patient satisfaction across health care settings can provide a basis for targeted quality improvement initiatives.     

Systemic pharmacologic therapy of ARDS

OBJECTIVE: Amid growing consumer demand and professional society recommendations for more information on early childhood development, current practices of pediatricians in regard to children's development remain largely unknown. We investigate whether there are differences in provider practices and satisfaction with regard to children's development (based on length of time in practice). DESIGN: A self-reported survey was conducted of physicians at 30 pediatric practices participating in the Healthy Steps for Young Children Program. Healthy Steps is a national program to enhance the developmental potential of young children. Comparisons were made among physicians categorized as in training (n = 88), recently in practice (completing residency from 1984 to 1996, n = 69), or more experienced (completing residency prior to 1984, n = 52). PRINCIPAL FINDINGS: Relative to those recently in practice and in training, more experienced pediatricians spend less time in well-baby visits in the first 2 months of life. One-third of physicians conduct family risk assessments, half complete routine developmental screening, and over half do safety risk assessments in the first 2 months of life. There were few differences by provider experience in the topics covered under anticipatory guidance for new parents. Nearly all discussed infant car seats, sleep position, feeding practices, and temperament, but less than half routinely discussed domestic violence, and between half and three-quarters discussed infant bathing, maternal depression, and appropriate discipline practices. While all three groups of physicians were satisfied with the amount of time to discuss growth and development and parenting issues, more experienced physicians were more satisfied with their own and their staff's abilities to meet new parents' needs on these issues. Factors that over one-third of physicians reported affected their ability to deliver the best-quality care were shortage of support staff, limited referral sources, managed-care restrictions on referrals for special services, excessive paperwork, and lack of time for follow up, teaching parents, and answering questions. Physicians in recent practice were more likely than more experienced physicians to cite reimbursement concerns and limited staff to address the needs of parents regarding development. CONCLUSIONS: Most pediatricians do not conduct routine developmental screening in the first 2 months of life, and most discuss safety, as opposed to developmental and mental health, concerns with parents of newborns. Pediatricians with more experience believe they are better meeting new parents' needs and are less likely to cite systems and organizational factors as limiting their ability to deliver high-quality care.     

Length of stay for specialized pediatric urologic care

BACKGROUND: Pediatric urologic specialists have been excluded from many recent managed care contracts because they are believed to be more expensive and of no better quality than general urologists in managing common urologic problems in children. We believed this to be inaccurate. OBJECTIVES: To compare the length of stay at the University of California, San Francisco Medical Center for 2 common pediatric urologic operative procedures with data from other northern California hospitals and to document our results and patient satisfaction. DESIGN: Retrospective analysis of HCIA statewide database (HCIA Inc, Orange, Conn). SETTING: Northern California, 1995. SUBJECTS: Children younger than 12 years undergoing surgery for repair of an obstruction of the ureteropelvic junction or vesicoureteral reflux. MAIN OUTCOME MEASURE: Length of stay. RESULTS: The length of stay in our hospital was similar to that observed in other hospitals in which other full-time pediatric urologic specialists practiced and was significantly less than that observed in other northern California hospitals, even when adjusted for risk. In fact, a savings of 279 hospital days would have been realized if all patients had the same length of stay as that achieved at University of California, San Francisco Medical Center. In the 38 patients operated on at our center, there was uniform surgical success. Of the parents, 92% (11/ 12) were satisfied with their child's care and 92% (11/ 12) believed they received enough information to know what to expect and how to care for their child at home. There were no data available evaluating quality from other northern California hospitals for comparison. CONCLUSIONS: Our finding that actual and risk-adjusted length of stay were shorter when patients were treated by full-time pediatric urologists, while excellent quality was maintained, suggests that these specialists achieve their results with more efficiency and lower resource utilization than do general urologists. The implication of these results is that exclusive contracting that prevents patients from receiving care from full-time specialists results in overuse of valuable resources and possibly reduced quality. If our results are generalizable, they have important implications for health care reform in the United States.     

Gender differences in satisfaction with primary care physicians in a managed care health plan

This study examines whether the formation of satisfaction with primary care physicians in a managed health care plan differs for men and women. Findings indicate that there are significant differences in the formation of satisfaction. For both men and women, the probability that an individual is satisfied is influenced by the type of plan enrolled in, number of problems experienced and beliefs about the quality of and access to benefits. Income and additional insurance coverage affects the probability of satisfaction for women only. Simulation analysis shows how satisfaction changes as individual characteristics and experience with managed care change.     

Capitation. Theory, practice, and evaluating rates for gastroenterology

Capitation risk contracting has the potential to combine insurance functions with medical care functions. Success depends on a careful consideration of the capitation rate and a thorough understanding of all capitation contract issues. Proper incentives to physicians in a specialty network stimulate a major reengineering effort to squeeze the inefficiency out of the system. Within the network, true peer review can effectively diminish variability in medical care. Such variability leads to increased cost without benefit to health status. The superior medical management of a capitated specialty network can create added value by coordinating more cost-effective and appropriate evaluation and therapy.     

Isolation and properties of extracellular alkaline phosphatase from Bacillus intermedius

Patients with chronic disease may be excluded from capitated managed care plans due to higher than average expected costs. In an attempt to remedy this inequity, one type of risk adjustment technique proposes to set separate capitation rates for certain chronic illnesses, including coronary artery disease (CAD). Cardiologists, who increasingly are requested to accept capitation, will benefit from understanding the impact of using clinical factors as opposed to using demographic factors to set capitation rates. Using a 5% national random sample of the 1992 Medicare population, we determined mean annual expenditures and variation in expenditures of individuals with CAD. We compared the use of 2 demographic factors currently used for capitation rate adjustment (age and gender) with 2 factors not currently used--3-digit International Classification of Disease (ICD-9) code (a measure for severity) and Charlson index (a measure for comorbidity). Mean annual expenditures for individuals with CAD were more than double mean annual expenditures for the general Medicare population ($6,944 vs $3,247). Among individuals with CAD, mean expenditures of subgroups defined by both age and gender ranged from $6,205 to $7,724. In comparison, stratifying by measures of severity and comorbidity identified subgroups with lower and higher mean expenditures, producing a range of $1,702 to $19,959. Substantial variation of expenditures for individuals within subgroups defined by severity and comorbidity remained, with few patients having substantially higher expenditures than the rest. When capitation rates are set with the use of demographic factors alone, patients may be subjected to risk selection and physicians to financial loss. Using clinical measures may decrease the incentive for patient risk selection, but substantial financial risk to physicians would remain, because of a relatively few patients with high expenditures (or costs).     

Asian blepharoplasty with a short-pulsed contact Nd-Yag laser: limited-incision resectable laser double fold with internal medial and lateral functional epicanthoplasty

PURPOSE: To determine how often primary care physicians screen adolescents for important risk factors and to determine how rates of screening vary by physicians' specialty and practice setting, patients' age, and type of risk factor. METHODS: A stratified random sample of 343 California physicians who are Board certified in pediatrics, family practice, or internal medicine, and physicians in these specialties who specialized in adolescent medicine were surveyed about their screening practices using a mailed questionnaire. Subjects were asked the percentage of routine comprehensive physical examination during which they personally queried or screened each age group of adolescents (11-14 years old and 15-18 years old) for each of the following risk factors: high blood pressure, alcohol use, cigarette use, sexual activity, and drug use. RESULTS: The frequency with which primary care physicians reported actually screening younger and older adolescents for the various risks were approximately: 93% and 96% for high blood pressure, 70% and 84% for alcohol use, 74% and 82% for drug use, 67% and 83% for sexual activity, and 76% and 86% for smoking, respectively. For all risk factors, providers screened older adolescents more frequently than younger adolescents (p < 0.01). Finally, screening rates varied by specialty (p < 0.01) but not by practice setting. CONCLUSIONS: This study found that California physicians frequently screen adolescents for a variety of risk factors. However, the reported rates may not be consistent with published guidelines. Interventions may need to be developed which focus on improving primary care physicians' adolescent-specific screening practices.     

After-hours telephone calls in a family practice residency: volume, seriousness, and patient satisfaction

BACKGROUND: After-hours calls are common in primary care physicians' practices. Calls may be unnecessary from the physician's perspective, but patients may have a different concept of the importance of reaching their physician immediately. This study's purpose was to compare physician and patient perceptions of the same telephone call episode. METHODS: Family practice residents (n = 19) recorded all patient-initiated after-hours telephone contacts (n = 192) during July 1993. Study personnel then telephoned, within 1 week of their call, the patients who made the calls. Patients were asked about the reason for their call, its seriousness, and their satisfaction with the handling of their problem. RESULTS: During the study month, 1.1 after-hours calls were received for every 10 office visits. A substantial minority of patients (29%) rated their problems in the highest severity category, while physicians assigned only 8% of calls the highest severity rating. The majority of patients (76.7%) were satisfied with how their after-hours calls were handled. CONCLUSIONS: In matched cases, physicians and patients perceive about the same proportion of calls to be routine versus more severe. Although patient satisfaction was high, further research into causes of dissatisfaction is needed.     

Member ratings of health care provided by 48 physician groups

BACKGROUND: Satisfaction with health plan performance has been assessed frequently, but assessment of physician group performance is rare. OBJECTIVE: To present ratings of the care provided by physician groups to enrollees in a variety of capitated health maintenance organization plans. METHODS: A random sample was drawn of adult enrollees receiving managed health care from 48 physician groups in a group practice association. Each individual in the sample was mailed a 12-page questionnaire and 7093 were returned (59% response rate). The mean age of those returning the questionnaire was 51 years; 65% were women. RESULTS: Reliability estimates for 6 multi-item satisfaction scales were excellent, and noteworthy differences in ratings among groups were observed. In particular, ratings of overall quality ranged from a low of 28 to a high of 68 (mean, 50; SD, 10). Average scores for physician groups were strongly correlated across all scales, but no single group scored consistently highest or lowest on the different scales. Negative ratings of care were significantly related to the following: intention to switch to another physician group, difficulty in getting appointments, lengthy waiting periods in the reception area and examination room, the inability to get consistent care from one physician for routine visits, and not being informed by the office staff when there was a delay in seeing the primary care provider. CONCLUSIONS: Monitoring of health care quality at the physician group level is possible, and could be used for benchmarking, internal quality improvement, and for providing information to the public about how these physician groups will meet its needs.     

Is gatekeeping better than traditional care? A survey of physicians' attitudes

CONTEXT: Nearly all managed care plans rely on a physician "gatekeeper" to control use of specialty, hospital, and other expensive services. Gatekeeping is intended to reduce costs while maintaining or improving quality of care by increasing coordination and prevention and reducing duplicative or inappropriate care. Whether gatekeeping achieves these goals remains largely unproven. OBJECTIVE: To assess physicians' attitudes about the effects of gatekeeping compared with traditional care on administrative work, quality of patient care, appropriateness of resource use, and cost. DESIGN: Cross-sectional survey of primary care physicians SETTING: Outpatient facilities in metropolitan Boston, Mass. PARTICIPANTS: All physicians who served as both primary care gatekeepers and traditional Blue Cross/Blue Shield providers for the employees of Massachusetts General Hospital, Boston. Of the 330 physicians surveyed, 202 (61%) responded. OUTCOMES MEASURES: Physician ratings of the effects of gatekeeping on 21 aspects of care, including administrative work, physician-patient interactions, decision making, appropriateness of resource use, cost, and quality of care. RESULTS: Physicians reported that gatekeeping (compared with traditional care) had a positive effect on control of costs, frequency, and appropriateness of preventive services and knowledge of a patient's overall care (P<.001). They also felt that gatekeeping increased paperwork and telephone calls and negatively affected the overall quality of care, access to specialists, ability to order expensive tests and procedures, freedom in clinical decisions, time spent with patients, physician-patient relationships, and appropriate use of hospitalizations and laboratory tests (P<.001). Overall, 32% of physicians rated gatekeeping as better than traditional care, 40% the same, 21% gatekeeping as worse, and 7% were of mixed opinion. Positive ratings of gatekeeping were associated with fewer years in clinical practice, generalist training, and experience with gatekeeping and health maintenance organization plans. CONCLUSIONS: Physicians identified both positive and negative effects of gate-keeping. Overall, 72% of physicians thought gatekeeping was better than or comparable to traditional care arrangements.     

Medical reference databases used by Army primary care physicians in field environments

A cross-sectional survey of U.S. Army primary care physicians was done to answer two questions: (1) which medical reference materials are Army primary care physicians currently using when deployed to a field environment? and (2) what would they like to have for medical reference in a field environment? Of 740 surveys delivered to their intended recipients, 445 (60%) were returned. Currently, 96% of primary care physicians use books, 37% use journals, and 11% use computer software in their medical reference database. Of those now using books, 72% were satisfied with them, compared with 61% of those using journals and 45% of those using software. The most common book used was the Merck Manual. The most important characteristics desired in a field medical database were broad coverage, ease of use, and light weight. The majority of respondents believe that a good medial reference database is important but that current medical databases limit the quality of the medicine they practice in the field.     

Guidelines as a strategy for preserving professional autonomy

Practice guidelines are often perceived as a threat to physician autonomy. However, the true challenge to physician autonomy is the rising costs of health care, which in turn is the result of continued progress in medical research. Since, inevitably, choices must be made about how our limited resources are expended, an increasing number of physicians are concluding that health care providers should assume financial risk for providing care--so that providers can make the decisions about which interventions are used for which patients. In this context, groups of physicians are adopting practice guidelines as an important strategy for providing high quality and efficient care under capitation. At least in some areas, practice guidelines are emerging as a critical tool for physicians to assume financial risk, and thereby protect professional autonomy.     

Stroke services in general practice--are they satisfactory?

BACKGROUND: The contribution of general practice and primary care teams to stroke care has received surprisingly little attention despite research evidence on the importance of coordinated care. AIM: To determine general practitioners' (GPs') and their patients' satisfaction with hospital and community services for stroke patients in Grampian Region, Scotland. METHOD: A questionnaire survey of 138 stroke patients and their GPs was carried out six weeks after each patient was discharged home between June 1995 and January 1996. Outcomes measured were GP and patient satisfaction with services, Barthel Index, Hospital Anxiety and Depression scores, London Handicap Score, and Homsat and Hospsat scores (satisfaction with stroke services). RESULTS: Response rates of 95% (131) for GPs and 91% (125) for patients were obtained. GPs and patients were generally satisfied with services. Stroke patients were more likely to have had contact with their GP than with any other service. Adverse comments from GPs focused on problems with hospital discharge letters. At six weeks, patients received an average of 2.5 community services and 1.5 hospital services, but there was wide variation across disability groups. CONCLUSIONS: Levels of satisfaction were high, but the wide range and variation in services used by patients emphasized the complexity of the primary care of stroke patients; the need for coordination, review and effective links with hospital; and the key role of the GP.