OBJECTIVES To identify injuries that elderly sustain during high-energy trauma and determine which are associated with mortality. DESIGN Retrospective review of prospectively collected database. SETTING Academic trauma center. PATIENTS Patients selected from database of all trauma admissions from January 2004 through June 2009. Study population consisted of patients directly admitted from...

The social connections people form online affect the quality of information they receive and their online experience. Although a host of socioeconomic and cognitive factors were implicated in the formation of offline social ties, few of them have been empirically validated, particularly in an online setting. In this study, we analyze a large corpus of georeferenced messages, or tweets, posted b...

Introduction The Affordable Care Act (ACA) was promoted with two goals: expanding health insurance coverage and reducing healthcare costs. Expanded coverage is expected to partially reduce costs. Emergency department (ED) visits are costlier than comparable primary care physician visits. If uninsured patients use the local ED more often than insured patients with comparable conditions, insuring...

Every second, the thoughts and feelings of millions of people across the world are recorded in the form of 140-character tweets using Twitter. However, despite the enormous potential presented by this remarkable data source, we still do not have an understanding of the Twitter population itself: Who are the Twitter users? How representative of the overall population are they? In this paper, we ...

CrossFit® is an increasingly popular exercise modality that uses high intensity power training. The literature to date regarding CrossFit® has focused on its benefits to VO2 Max, body composition and the motivational variables of participants of CrossFit®. A computerized survey was distributed to CrossFit® instructors using Survey Monkey® (Palo Alto, CA, USA). One hundred and ninety-three Cross...

This is a questionnaire based study of 501 women enquiring about anonymous oocyte donation at a private in-vitro fertilization (IVF) unit, investigating the demographic characteristics and logistic issues involved in ovum donation. The 501 women were made up of 356 women who did not donate ('non-donors') and 145 women who eventually donated their oocytes ('donors'). Although there was a majorit...

Online survey data were collected from 30,000 users of Massively Multi-User Online RolePlaying Games (MMORPGs) over a three year period to explore users’ demographics, motivations and derived experiences. Not only do MMORPGs appeal to a broad age range (Mage= 26.57, range = 11-68), but the appeal is strong (on average 22 hours of usage per week) across users of all ages (r = -.04). An explorato...