Learn More
The Five Factor Model of personality has been used extensively in the management and psychology fields to predict attitudes and behaviors. Only recently have researchers begun to examine the role of psychological factors in influencing an individual’s use of technology platforms, such as Facebook. This study uses both a survey of Facebook users and actual(More)
Covariate adjustment using linear models for continuous outcomes in randomized trials has been shown to increase efficiency and power over the unadjusted method in estimating the marginal effect of treatment. However, for binary outcomes, investigators generally rely on the unadjusted estimate as the literature indicates that covariate-adjusted estimates(More)
In theories of social movements, the structural models of the last thirty years may have reached the limits of their utility. Future breakthroughs are likely to arise from attention to the microfoundations of political action. The study of strategic choices may be one fruitful new path of research, especially if sociologists can develop an approach to(More)
OBJECTIVES To determine patterns of co-occurring diseases in older adults and the extent to which these patterns vary between the young-old and the old-old. DESIGN Observational study. SETTING Department of Veterans Affairs. PARTICIPANTS Veterans aged 65 years and older (1.9 million male, mean age 76 ± 7; 39,000 female, mean age 77 ± 8) with two or(More)
BACKGROUND Rates of sepsis exceeding 50% in a neonatal intensive care unit (NICU) in Cairo, Egypt, were not controlled by routine antimicrobial therapy. We investigated these conditions in September 2001. METHODS Case series and retrospective cohort studies were conducted on 2 groups of NICU infants admitted to an academic medical center between February(More)
CONTEXT The Indian Health Service (IHS), whose per capita expenditure for American Indian and Alaska Native (AI/AN) health services is about half that of the US civilian population, is the only source of health care funding for many rural AI/ANs. Specialty services, largely funded through contracts with outside practitioners, may be limited by low IHS(More)
Health services research consistently confirms the benefit of insurance coverage on the use of health services sought in the USA. However, few studies have simultaneously addressed the multitude of competing and unmet needs specifically among unstably housed persons. Moreover, few have accounted for the fact that hospitalization may lead to obtaining(More)
Linezolid was approved in 2000 for treatment of gram-positive coccal infections. We performed a case-control study during a hospital outbreak of linezolid-resistant enterococci (LRE) infections, comparing cases of LRE infection (cases) with linezolid-sensitive enterococci infections (controls). Nasal and perirectal swab samples were obtained from all(More)
OBJECTIVES To investigate patterns in prevalences of chronic medical conditions over the age span of long-term stay nursing home residents and between the sexes with data from the 2004 National Nursing Home Survey (NNHS). DESIGN Retrospective, cross-sectional study. SETTING U.S. nursing homes. PARTICIPANTS Nationally representative sample comprising(More)
BACKGROUND Asthma is the most important chronic disease of childhood. The U.S. Environmental Protection Agency has concluded that children with asthma continue to be susceptible to ozone-associated adverse effects on their disease. OBJECTIVES This study was designed to evaluate time trends in associations between declining warm-season O(3) concentrations(More)