Archaeology: progress and pitfalls in radiocarbon dating.
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Biomedical subjects
Publications and source records attributed to Richard G Roberts.
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Patient perceptions of overactive bladder (OAB) symptoms, expectations for treatment benefit, and overall treatment satisfaction share complex relations. Multiple studies have demonstrated associations between factors, such as age, sex, and ethnicity, and patient perceptions of OAB symptoms, especially urgency urinary incontinence. Perceptions of OAB are also shaped by symptom severity and impact on health-related quality of life, as well as by perceptions of family members, caregivers, and clinicians. The literature further suggests discrepancies in the reporting among patients, physicians, and family members/caregivers of the impact that urinary symptoms have on patients' emotional well-being, productivity, and daily life. Understanding the factors that affect patients' perceptions is important because these perceptions affect treatment expectations, which may predict treatment outcomes. Studies designed to evaluate the relations between expectations for OAB treatment and patient satisfaction have not been performed to date, but studies in other patient populations suggest that expectations of positive outcomes are associated with greater treatment satisfaction. We emphasize that patient satisfaction with treatment is directly related to fulfillment of positive expectations, and that patient expectations should be realistic and agreed on by patient and physician. We also discuss strategies that may be used by physicians managing patients with OAB to develop stronger patient-physician partnerships, including the effective communication required to make treatment decisions and set realistic expectations.
This article evaluates the safety and tolerability of tolterodine for the treatment of overactive bladder (OAB), which is defined as urinary urgency with or without urgency incontinence, usually with frequency and nocturia, but without infection or pathology. OAB affects tens of millions of people worldwide. Data are summarized from clinical trials and from postmarketing surveillance studies.
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Australia's oldest human remains, found at Lake Mungo, include the world's oldest ritual ochre burial (Mungo III) and the first recorded cremation (Mungo I). Until now, the importance of these finds has been constrained by limited chronologies and palaeoenvironmental information. Mungo III, the source of the world's oldest human mitochondrial DNA, has been variously estimated at 30 thousand years (kyr) old, 42-45 kyr old and 62 +/- 6 kyr old, while radiocarbon estimates placed the Mungo I cremation near 20-26 kyr ago. Here we report a new series of 25 optical ages showing that both burials occurred at 40 +/- 2 kyr ago and that humans were present at Lake Mungo by 50-46 kyr ago, synchronously with, or soon after, initial occupation of northern and western Australia. Stratigraphic evidence indicates fluctuations between lake-full and drier conditions from 50 to 40 kyr ago, simultaneously with increased dust deposition, human arrival and continent-wide extinction of the megafauna. This was followed by sustained aridity between 40 and 30 kyr ago. This new chronology corrects previous estimates for human burials at this important site and provides a new picture of Homo sapiens adapting to deteriorating climate in the world's driest inhabited continent.
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Since family practice was first recognized as a specialty in the late 1960s, considerable intellectual and organizational change has occurred in medicine, especially during the 1990s. To reflect on and reconsider the role of family practice in US health care, this article reviews the development of family practice as a specialty, provides a current assessment of the status of family medicine in the United States, and comments on issues that are of ongoing importance to family practice.
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Overactive bladder (OAB)--a syndrome characterized by urinary urgency, with or without urge incontinence, urinary frequency and nocturia--is estimated to affect 10% to 20% of the US and European populations. This study was carried out to validate a patient-administered screening awareness tool to identify patients with bothersome OAB symptoms. Patients were recruited from 12 primary care and 1 gynecology practice during regularly scheduled appointments. Enrollees completed an 8-item questionnaire assessing the amount of "bother" they associated with OAB symptoms. Clinicians then asked the patients 4 questions regarding urinary frequency, urgency, nocturia, and incontinence. If the screening was positive for symptoms of OAB or if the patient provided positive responses to the urinary symptom questions, the clinician asked additional questions regarding lifestyle and coping behaviors. The clinician then diagnosed the patient, placing him or her in the "No OAB," "Possible OAB," or "Probable OAB" category. Multivariable logistic regressions controlling for age and sex were performed to assess the applicability of the tool for identifying patients with OAB. A total of 1,299 patients were enrolled, and 1,260 provided complete data. Patients were aged 51.6+/-17.0 years, 62% were female, most (89%) were Caucasian, 22% experienced urinary urgency, and 18% experienced urge incontinence. The prevalence of Probable OAB was 12%. The c-index of the model identifying patients with a diagnosis of Probable OAB was 0.96, with a sensitivity and specificity of 98.0 and 82.7. For OAB-V8 scores >or=8, the odds ratio for Probable OAB was 95.7 (95% CI: 29.3; 312.4). The OAB-V8 performed well in helping clinicians identify patients with bothersome OAB symptoms in a primary care setting and will assist clinicians in identifying patients who may benefit from treatment.
BACKGROUND: Recognizing fundamental flaws in the fragmented US health care systems and the potential of an integrative, generalist approach, the leadership of 7 national family medicine organizations initiated the Future of Family Medicine (FFM) project in 2002. The goal of the project was to develop a strategy to transform and renew the discipline of family medicine to meet the needs of patients in a changing health care environment. METHODS: A national research study was conducted by independent research firms. Interviews and focus groups identified key issues for diverse constituencies, including patients, payers, residents, students, family physicians, and other clinicians. Subsequently, interviews were conducted with nationally representative samples of 9 key constituencies. Based in part on these data, 5 task forces addressed key issues to meet the project goal. A Project Leadership Committee synthesized the task force reports into the report presented here. RESULTS: The project identified core values, a New Model of practice, and a process for development, research, education, partnership, and change with great potential to transform the ability of family medicine to improve the health and health care of the nation. The proposed New Model of practice has the following characteristics: a patient-centered team approach; elimination of barriers to access; advanced information systems, including an electronic health record; redesigned, more functional offices; a focus on quality and outcomes; and enhanced practice finance. A unified communications strategy will be developed to promote the New Model of family medicine to multiple audiences. The study concluded that the discipline needs to oversee the training of family physicians who are committed to excellence, steeped in the core values of the discipline, competent to provide family medicine's basket of services within the New Model, and capable of adapting to varying patient needs and changing care technologies. Family medicine education must continue to include training in maternity care, the care of hospitalized patients, community and population health, and culturally effective and proficient care. A comprehensive lifelong learning program for each family physician will support continuous personal, professional, and clinical practice assessment and improvement. Ultimately, systemwide changes will be needed to ensure high-quality health care for all Americans. Such changes include taking steps to ensure that every American has a personal medical home, promoting the use and reporting of quality measures to improve performance and service, advocating that every American have health care coverage for basic services and protection against extraordinary health care costs, advancing research that supports the clinical decision making of family physicians and other primary care clinicians, and developing reimbursement models to sustain family medicine and primary care practices. CONCLUSIONS: The leadership of US family medicine organizations is committed to a transformative process. In partnership with others, this process has the potential to integrate health care to improve the health of all Americans.