Growth of single-specialty medical groups

Using site-visit data from the Community Tracking Study, we show that specialists are increasingly forming large single-specialty medical groups, particularly in orthopedics and cardiology, where new technologies have increased the number of diagnostic imaging and surgical services that can be provided in outpatient settings. Specialists are also forming large groups to gain negotiating leverage with health plans; the decline of managed care and the fading of the perception of a specialist surplus has made single- rather than multispecialty groups an attractive means to gain leverage. We explore possible consequences of this shift in physician practice organization and its policy implications.     

Mutations of the D310 mitochondrial mononucleotide repeat in primary tumors and cytological specimens

A mononucleotide repeat (D310) in mitochondrial DNA has been recently identified as a mutational hot spot in primary tumors. We analyzed 56 tumors for insertion/deletion mutations in the D310 repeat. A total of 13 mutations were detected. The highest frequency of mutations was found for cervical cancer, followed by bladder tumors, breast cancer and endometrial neoplasia. No alterations were observed in four patients suspected of malignancy but without evidence of malignant tumor. We detected identical changes in four of four urine sediments from patients with bladder cancer and in three of three fine needle aspirates of patients with breast cancer. Our results indicate that D310 abnormalities are detectable in cytology specimens from patients with cancer and support the notion that D310 analysis may represent a new molecular tool for cancer detection.     

Obstructive jaundice secondary to benign hepatic cyst

A case of hepatic cyst causing obstructive jaundice is presented. Following percutaneous aspiration of the cyst, the jaundice was relieved. Modern interventional radiologic techniques can provide prompt diagnosis and treatment, thus avoiding major surgery and prolonged hospitalization.     

The alignment and blending of payment incentives within physician organizations

OBJECTIVE: To analyze the blend of retrospective (fee-for-service, productivity-based salary) and prospective (capitation, nonproductivity-based salary) methods for compensating individual physicians within medical groups and independent practice associations (IPAs) and the influence of managed care on the compensation blend used by these physician organizations. DATA SOURCES: Of the 1,587 medical groups and IPAs with 20 or more physicians in the United States, 1,104 responded to a one-hour telephone survey, with 627 providing detailed information on physician payment methods. STUDY DESIGN: We calculated the distribution of compensation methods for primary care and specialty physicians, separately, in both medical groups and IPAs. Multivariate regression methods were used to analyze the influence of market and organizational factors on the payment method developed by physician organizations for individual physicians. PRINCIPAL FINDINGS: Within physician organizations, approximately one-quarter of physicians are paid on a purely retrospective (fee-for-service) basis, approximately one-quarter are paid on a purely prospective (capitation, nonproductivity-based salary) basis, and approximately one-half on blends of retrospective and prospective methods. Medical groups and IPAs in heavily penetrated managed care markets are significantly less likely to pay their individual physicians based on fee-for-service than are organizations in less heavily penetrated markets. CONCLUSIONS: Physician organizations rely on a wide range of prospective, retrospective, and blended payment methods and seek to align the incentives faced by individual physicians with the market incentives faced by the physician organization.     

Physician Practice Participation in Accountable Care Organizations: The Emergence of the Unicorn

Objective

To provide the first nationally based information on physician practice involvement in ACOs.

Data Sources/Study Setting

Primary data from the third National Survey of Physician Organizations (January 2012–May 2013).

Study Design

We conducted a 40-minute phone survey in a sample of physician practices. A nationally representative sample of practices was surveyed in order to provide estimates of organizational characteristics, care management processes, ACO participation, and related variables for four major chronic illnesses.

Data Collection/Extraction Methods

We evaluated the associations between ACO participation, organizational characteristics, and a 25-point index of patient-centered medical home processes.

Principal Findings

We found that 23.7 percent of physician practices (n = 280) reported joining an ACO; 15.7 percent (n = 186) were planning to become involved within the next 12 months and 60.6 percent (n = 717) reported no involvement and no plans to become involved. Larger practices, those receiving patients from an IPA and/or PHO, those that were physician-owned versus hospital/health system-owned, those located in New England, and those with greater patient-centered medical home (PCMH) care management processes were more likely to have joined an ACO.

Conclusions

Physician practices that are currently participating in ACOs appear to be relatively large, or to be members of an IPA or PHO, are less likely to be hospital-owned and are more likely to use more care management processes than nonparticipating practices.     

Comparison of Substance Use and Risky Sexual Behavior Among a Diverse Sample of Urban,HIV-Positive Men Who Have Sex with Men

ABSTRACT

The purpose of this study was to examine substance use among a racially and ethnically diverse group of HIV-positive men who have sex with men (MSM) living in six U.S. cities, model associations between drug use and serodiscordant unprotected anal intercourse (SDUAI), and characterize users of the substances strongly associated with risky sexual behavior. Baseline questionnaire data from 675 participants of the Positive Connections intervention trial were analyzed. Overall, substance use was common; however, the highest percentage of stimulant (30%), methamphetamine (27%), and popper (i.e., amyl nitrite) (46%) use was reported among white MSM and crack/cocaine (38%) use was highest among African American MSM. Popper use versus non-use (odds ratio = 2.46; 95% confidence interval = 1.55–3.94) and condom self-efficacy (1 standard deviation (sd) increase on scale; odds ratio = .58; 95% confidence interval = .46–.73) were significantly associated with SDUAI after adjusting for key demographic and psychosocial factors. These results highlight the importance of addressing drug use in the context of sex for possible HIV transmission risk.     

Alternative models of hospital-physician affiliation as the United States moves away from tight managed care

Using concepts from organizational economics and sociology, this article compares the medical staff, hospital-owned physician practice, and hybrid models of hospital-physician coordination, as well as the pressures for affiliation during the premanaged care, tight managed care, and loose managed care eras. Case studies of two hospital systems in New York City and two in San Diego illustrate the concepts. Although pressures for tighter hospital-physician affiliation now are weaker than during the era of tight managed care, they are greater than they were before managed care. Hospitals are not reverting to exclusive use of the medical staff model of affiliation but rather are maintaining a mix of medical staff, owned physician practice, and hybrid models. Hospitals probably will continue to seek tighter affiliations with physicians to increase coordination, enhance negotiating leverage with health plans, and gain admissions.