Lien A Quach

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BACKGROUND Delirium is common after cardiac surgery and may be associated with long-term changes in cognitive function. We examined postoperative delirium and the cognitive trajectory during the first year after cardiac surgery. METHODS We enrolled 225 patients 60 years of age or older who were planning to undergo coronary-artery bypass grafting or valve(More)
OBJECTIVES To investigate the relationships between uncontrolled and controlled hypertension, orthostatic hypotension (OH), and falls in participants of the Maintenance of Balance, Independent Living, Intellect, and Zest in the Elderly of Boston Study (N=722, mean age 78.1). DESIGN Prospective population-based study. SETTING Community. PARTICIPANTS(More)
OBJECTIVES To examine the relationship between gait speed and falls risk. DESIGN Longitudinal analysis of the association between gait speed and subsequent falls and analysis of gait speed decline as a predictor of future falls. SETTING Population-based cohort study. PARTICIPANTS Seven hundred sixty-three community-dwelling older adults underwent(More)
OBJECTIVES To identify risk factors for indoor and outdoor falls. DESIGN Prospective cohort study. SETTING The MOBILIZE Boston Study, a study of falls etiology in community-dwelling older individuals. PARTICIPANTS Seven hundred sixty-five women and men, mainly aged 70 and older, from randomly sampled households in the Boston, Massachusetts, area. (More)
OBJECTIVE HIV-infected patients are at increased risk for cardiovascular disease, which may be mediated in part by inflammation. Surrogate marker studies suggest an increased prevalence of vascular abnormalities in HIV infection. We examined the association of all-cause mortality in HIV-infected patients with carotid artery intima-media thickness (cIMT) and(More)
Health care providers in Vietnam have been facing an increase in the number of HIV patients. However, little is known about physicians' knowledge, attitudes, and practices about HIV/AIDS and their correlates. A cross-sectional survey was conducted in 2003 with 151 physicians who had some contact with HIV-infected people. Anonymous data was collected by(More)
BACKGROUND Our objective was to investigate the association between hypertension and concurrent impairments in mobility, cognition, and mood; the role of brain white matter hyperintensities in mediating this association; and the impact of these impairments on disability and mortality in elderly hypertensive individuals. METHODS AND RESULTS -Blood(More)
UNLABELLED Dairy foods are a complex source of essential nutrients. In this study, fluid dairy intake, specifically milk, and yogurt intakes were associated with hip but not spine bone mineral density (BMD), while cream may adversely influence BMD, suggesting that not all dairy products are equally beneficial for the skeleton. PURPOSE This study seeks to(More)
PURPOSE We sought to determine the incidence and risks for severe thrombocytopenia (platelets < 50,000/μL) in United States Veteran patients treated with pegylated interferon (PEG-IFN) plus ribavirin for hepatitis C virus-positive (HCV) chronic liver disease (CLD). METHODS Using a retrospective, observational cohort study design to analyze databases from(More)
Background Peripheral neuropathy (PN) is often associated with specific diseases; however, research suggests that idiopathic PN is prevalent in older adult populations [1]. Foot ulceration is the traditional medical concern with PN, but people with PN may also have disproportionately more falls [2]. Therefore, our objective was to evaluate associations(More)