RAND Corporation

About: RAND Corporation is a nonprofit organization based out in Santa Monica, California, United States. It is known for research contribution in the topics: Health care & Population. The organization has 9602 authors who have published 18570 publications receiving 744658 citations.

Diabetes and Incidence of Functional Disability in Older Women

Abstract: OBJECTIVE—To examine the relationship between diabetes and the incidence of functional disability and to determine the predictors of functional disability among older women with diabetes. RESEARCH DESIGN AND METHODS—We analyzed data from 8,344 women enrolled in the Study of Osteoporotic Fractures, a prospective cohort of women aged ≥65 years. Diabetes (n = 527, 6.3% prevalence) and comorbidities (coronary heart disease, stroke, arthritis, depression, and visual impairment) were assessed by questionnaire and physical examination. Incident disability, defined as onset of inability to do one or more major functional tasks (walking 0.25 mile, climbing 10 steps, performing household chores, shopping, and cooking meals), was assessed by questionnaire over 12 years. RESULTS—The yearly incidence of any functional disability was 9.8% among women with diabetes and 4.8% among women without diabetes. The age-adjusted hazard rate ratio (HRR) of disability for specific tasks associated with diabetes ranged from 2.12 (1.82–2.48) for doing housework to 2.50 (2.05–3.04) for walking two to three blocks. After adjustment for potential confounders at baseline (BMI, physical activity, estrogen use, baseline functional status, visual impairment, and marital status) and comorbidities (heart disease, stroke, depression, and arthritis), diabetes remained associated with a 42% increased risk of any incident disability and a 53–98% increased risk of disability for specific tasks. Among women with diabetes, older age, higher BMI, coronary heart disease, arthritis, physical inactivity, and severe visual impairment at baseline were each independently associated with disability. CONCLUSIONS—Diabetes is associated with an increased incidence of functional disability, which is likely to further erode health status and quality of life.

Defining and measuring quality of care: a perspective from US researchers.

Abstract: The modern quality field in medicine is about one-third of a century old. The purpose of this paper is to summarize what we know about quality of care and indicate what we can do to improve quality of care in the next century. We assert that quality can be measured, that quality of care varies enormously, that improving quality of care is difficult, that financial incentives directed at the health system level have little effect on quality, and that we lack a publicly available tool kit to assess quality. To improve quality of care we will need adequate data and that will require patients to provide information about what happened to them and to allow people to abstract their medical records. It also will require that physicians provide patient information when asked. We also need a strategy to measure quality and then report the results and we need to place in the public domain tool kits that can be used by physicians, administrators, and patient groups to assess and improve quality. Each country should have a national quality report, based on standardized comprehensive and scientifically valid measures, which describes the country's progress in improving quality of care. We can act now. For the 70-100 procedures that dominate what physicians do, we should have a computer-based, prospective system to ensure that physicians ask patients the questions required to decide whether to do the procedure. The patient should verify the responses. Answers from patients should be combined with test results and other information obtained from the patient's physician to produce an assessment of the procedure's appropriateness and necessity. Advanced tools to assess quality, based on data from the patient and medical records, are also currently being developed. These tools could be used to comprehensively assess the quality of primary care across multiple conditions at the country, regional, and medical group level.

Does alcohol advertising promote adolescent drinking? Results from a longitudinal assessment

Abstract: Aims To examine the relationship between exposure to different forms of alcohol advertising and subsequent drinking among US adolescents and assess whether exposure to an alcohol and drug prevention program mitigates any such relationship. Design Regression models with multiple control variables examined the relationship between exposure to alcohol advertising in grade 8 and grade 9 drinking for two groups of South Dakotan adolescents: (1) seventh-grade non-drinkers (n = 1206) and (2) seventh-grade drinkers (n = 1905). Interactions between the intervention program and the significant advertising predictors were tested. Setting Forty-one middle schools in South Dakota, USA. Participants A total of 3111 seventh-graders followed through grade 9. Measurements Advertising variables were constructed for four types of alcohol advertising—television, in-store displays, magazines and concession stands. Other predictors tested included measures tapping social influences, social bonds, problem behavior, alcohol beliefs, television exposure and demographics. Findings For seventh-grade non-drinkers, exposure to in-store beer displays predicted drinking onset by grade 9; for seventh-grade drinkers, exposure to magazines with alcohol advertisements and to beer concession stands at sports or music events predicted frequency of grade 9 drinking. Although exposure to television beer advertising had a significant bivariate relationship with alcohol use for grade 7 non-drinkers, it was not a significant predictor of drinking for either group in multivariate analyses. Participation in the prevention program, ALERT Plus, reduced future drinking for both groups and counteracted the effect of in-store beer displays. Conclusions Several forms of alcohol advertising predict adolescent drinking; which sources dominate depends on the child's prior experience with alcohol. Alcohol prevention programs and policies should help children counter alcohol advertising from multiple sources and limit exposure to these sources.

Bilingualism and cognitive development.

Abstract: IANCO-WORRALL, ANITA D. Bilingualism and Cognitive Development. CHILD DEVELOPMENT, 1972, 43, 1390-1400. Limited to one definition of bilingualism, namely, dual-language acquisition, in a one-person, one-language home environment, experiments were designed to test Leopold's observations on the earlier separation of word sound from word meaning by bilingual compared to matched unilingual children. Attention to meaning or to sound of words was tested with the semantic and phonetic preference test, a two-choice test in which similarity between words could be interpreted on the basis of shared meaning or shared acoustic properties. The notion that bilingualism leads to the earlier realization of the arbitrary nature of name-object relationship was tested with the questioning technique described by Vygotsky. This called for the explanation of names, whether names can be interchanged and, when names are interchanged in play, whether the attributes of the objects change along with their names. The results support Leopold's observation on the earlier separation of sound and meaning by bilingual children.

Serving Patients Who May Die Soon and Their Families The Role of Hospice and Other Services

Abstract: The case story of a 47-year-old man with advanced rectal carcinoma illustrates the professional services and care system strategies available to help clinicians serve patients coming to the end of life. For this patient, who understands his prognosis, primary care physician services include (1) prevention and relief of symptoms, (2) assessment of each treatment before and during implementation, (3) ensuring that the patient designates a surrogate decision-maker and makes advance plans, and (4) preparation of patient and family for the time near death. Good care may entail enduring unavoidably difficult times with patients and their families.Enrollment in a hospice program requires that decision-makers confront the prognosis and their uncertainties about it, consider the desirability of other services, recognize variations among available hospice programs, address financial issues, and weigh the distress of patients and loved ones at being labeled as "dying." Hospice provides competent, continuous, and reasonably comprehensive care, but it has some constraints.Function and symptoms for those living with serious chronic illness at the end of life generally follow 1 of 3 trajectories: (a) a short period of obvious decline at the end, which is typical of cancer; (b) long-term disability, with periodic exacerbations, and unpredictable timing of death, which characterizes dying with chronic organ system failures; or (c) self-care deficits and a slowly dwindling course to death, which usually results from frailty or dementia. Effective and reliable care for persons coming to the end of life will require changes in the organization and financing of care to match these trajectories, as well as compassionate and skillful clinicians.