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.

Pregnancy and Fertility Following Bariatric Surgery: A Systematic Review

Abstract: Context Use of bariatric surgery has increased dramatically during the past 10 years, particularly among women of reproductive age. Objectives To estimate bariatric surgery rates among women aged 18 to 45 years and to assess the published literature on pregnancy outcomes and fertility after surgery. Evidence Acquisition Search of the Nationwide Inpatient Sample (1998-2005) and multiple electronic databases (Medline, EMBASE, Controlled Clinical Trials Register Database, and the Cochrane Database of Reviews of Effectiveness) to identify articles published between 1985 and February 2008 on bariatric surgery among women of reproductive age. Search terms included bariatric procedures, fertility, contraception, pregnancy, and nutritional deficiencies. Information was abstracted about study design, fertility, and nutritional, neonatal, and pregnancy outcomes after surgery. Evidence Synthesis Of 260 screened articles, 75 were included. Women aged 18 to 45 years accounted for 49% of all patients undergoing bariatric surgery (>50 000 cases annually for the 3 most recent years). Three matched cohort studies showed lower maternal complication rates after bariatric surgery than in obese women without bariatric surgery, or rates approaching those of nonobese controls. In 1 matched cohort study that compared maternal complication rates in women after laparoscopic adjustable gastric band surgery with obese women without surgery, rates of gestational diabetes (0% vs 22.1%, P Conclusion Rates of many adverse maternal and neonatal outcomes may be lower in women who become pregnant after having had bariatric surgery compared with rates in pregnant women who are obese; however, further data are needed from rigorously designed studies.

Understanding the Impact of Parent School Involvement on Children's Educational Outcomes

Abstract: Parent school involvement in children's education is associated with positive educational outcomes. This association has prompted efforts to increase such involvement through formal programs. However, among the few programs that have been rigorously evaluated, most do not appear to improve child outcomes. Using data from a study of 193 Los Angeles area 2nd- and 5th-grade children and their mothers, the authors attempted to confirm the relationship between parent involvement and child outcomes and understand what underlies it. The findings indicate that parent school involvement contributes to positive child outcomes. However, such involvement appears to be a manifestation of parental enthusiasm and positive parenting style. Parent-involvement programs might be more effective if they focused on such underlying constructs.

Many Emergency Department Visits Could Be Managed At Urgent Care Centers And Retail Clinics

Abstract: Americans seek a large amount of nonemergency care in emergency departments, where they often encounter long waits to be seen. Urgent care centers and retail clinics have emerged as alternatives to the emergency department for nonemergency care. We estimate that 13.7-27.1 percent of all emergency department visits could take place at one of these alternative sites, with a potential cost savings of approximately $4.4 billion annually. The primary conditions that could be treated at these sites include minor acute illnesses, strains, and fractures. There is some evidence that patients can safely direct themselves to these alternative sites. However, more research is needed to ensure that care of equivalent quality is provided at urgent care centers and retail clinics compared to emergency departments.

The Reproducibility of a Method to Identify the Overuse and Underuse of Medical Procedures

Abstract: Background To assess the overuse and underuse of medical procedures, various methods have been developed, but their reproducibility has not been evaluated. This study estimates the reproducibility of one commonly used method. Methods We performed a parallel, three-way replication of the RAND–University of California at Los Angeles appropriateness method as applied to two medical procedures, coronary revascularization and hysterectomy. Three nine-member multidisciplinary panels of experts were composed for each procedure by stratified random sampling from a list of experts nominated by the relevant specialty societies. Each panel independently rated the same set of clinical scenarios in terms of the appropriateness of the relevant procedure on a risk–benefit scale ranging from 1 to 9. Final ratings were used to classify the procedure in each scenario as necessary or not necessary (to evaluate underuse) and inappropriate or not inappropriate (to evaluate overuse). Reproducibility was measured by overall agr...