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.

Human Capital and the Productivity of Suicide Bombers

Abstract: The authors' empirical analysis suggests that older and more educated suicide bombers are being assigned by their terror organization to more important targets. They find that more educated and older suicide bombers are less likely to fail in their mission and are more likely to cause increased casualties when they attack.

Principles of survey research part 6: data analysis

Abstract: This article is the last of our series of articles on survey research. In it, we discuss how to analyze survey data. We provide examples of correct and incorrect analysis techniques used in software engineering surveys.

A model for a smallpox-vaccination policy.

Abstract: background The new reality of biologic terrorism and warfare has ignited a debate about whether to reintroduce smallpox vaccination. methods We developed scenarios of smallpox attacks and built a stochastic model of outcomes under various control policies. We conducted a systematic literature review and estimated model parameters on the basis of European and North American outbreaks since World War II. We assessed the trade-offs between vaccine-related harms and benefits. results Nations or terrorists possessing a smallpox weapon could feasibly mount attacks that vary with respect to tactical complexity and target size, and patterns of spread can be expected to vary according to whether index patients are hospitalized early. For acceptable results, vaccination of contacts must be accompanied by effective isolation. Vaccination of contacts plus isolation is expected to result in 7 deaths (from vaccine or smallpox) in a scenario involving the release of variola virus from a laboratory, 19 deaths in a human-vector scenario, 300 deaths in a building-attack scenario, 2735 deaths in a scenario involving a low-impact airport attack, and 54,728 deaths in a scenario involving a high-impact airport attack. Immediate vaccination of the public in an attacked region would provide little additional benefit. Prior vaccination of health care workers, who would be disproportionately affected, would save lives in large local or national attacks but would cause 25 deaths nationally. Prior vaccination of health care workers and the public would save lives in a national attack but would cause 482 deaths nationally. The expected net benefits of vaccination depend on the assessed probability of an attack. Prior vaccination of health care workers would be expected to save lives if the probability of a building attack exceeded 0.22 or if the probability of a high-impact airport attack exceeded 0.002. The probability would have to be much higher to make vaccination of the public life-saving. conclusions The analysis favors prior vaccination of health care workers unless the likelihood of any attack is very low, but it favors vaccination of the public only if the likelihood of a national attack or of multiple attacks is high.

Utilization of anesthesia services during outpatient endoscopies and colonoscopies and associated spending in 2003-2009.

Abstract: Context The frequency with which anesthesiologists or nurse anesthetists provide sedation for gastrointestinal endoscopies, especially for low-risk patients, is poorly understood and controversial. Objective To quantify temporal comparisons and regional variation in the use of and payment for gastroenterology anesthesia services. Design, Setting, and Patients A retrospective analysis of claims data for a 5% representative sample of Medicare fee-for-service patients (1.1 million adults) and a sample of 5.5 million commercially insured patients between 2003 and 2009. Main Outcome Measures Total number of upper gastrointestinal endoscopies and colonoscopies, proportion of gastroenterology procedures with associated anesthesia claims, payments for gastroenterology anesthesia services, and proportion of services and spending for gastroenterology anesthesia delivered to low-risk patients (American Society of Anesthesiologists physical status class 1 or 2). Results The number of gastroenterology procedures per million enrollees remained largely unchanged in Medicare patients (mean, 136 718 procedures), but increased more than 50% in commercially insured patients (from 33 599 in 2003 to 50 816 in 2009). In both populations, the proportion of procedures using anesthesia services increased from approximately 14% in 2003 to more than 30% in 2009, and more than two-thirds of anesthesia services were delivered to low-risk patients. There was substantial regional variation in the proportion of procedures using anesthesia services in both populations (ranging from 13% in the West to 59% in the Northeast). Payments for gastroenterology anesthesia services doubled in Medicare patients and quadrupled in commercially insured patients. Conclusions Between 2003 and 2009, utilization of anesthesia services during gastroenterology procedures increased substantially. Anesthesia services are predominantly used in low-risk patients and show considerable regional variation.

An Evaluation of Collaborative Interventions to Improve Chronic Illness Care Framework and Study Design

Abstract: The authors’dual-purpose evaluation assesses the effectiveness of formal collaboratives in stimulating organizational changes to improve chronic illness care (the chronic care model or CCM). Intervention and comparison sites are compared before and after introduction of the CCM. Multiple data sources are used to measure the degree of implementation, patient-level processes and outcomes, and organizational and team factors associated with success. Despite challenges in timely recruitment of sites and patients, data collection on 37 participating organizations, 22 control sites, and more than 4,000 patients with diabetes, congestive heart failure, asthma, or depression is nearing completion. When analyzed, these data will shed new light on the effectiveness of collaborative improvement methods and the CCM.