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This database contains 244 studies, archived under the term: "Cohort Study"

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The influence of hospice use on nursing home and hospital use in assisted living among dual-eligible enrollees

Objective: This study examined the impact of hospice enrollment on the probabilities of hospital and nursing home admissions among a sample of frail dual-eligible assisted living (AL) residents.; Design: The study used a retrospective cohort design. We estimated bivariate probit models with 2 binary outcome variables: any hospital admissions and any nursing home admissions after […]

CD4 nadir is a predictor of HIV neurocognitive impairment in the era of combination antiretroviral therapy

Objective: Despite immune recovery in individuals on combination antiretroviral therapy (CART), the frequency of HIV-associated neurocognitive disorders (HANDs) remains high. Immune recovery is typically achieved after initiation of ART from the nadir, or the lowest historical CD4. The present study evaluated the probability of neuropsychological impairment (NPI) and HAND as a function of CD4 nadir […]

Comparisons of plasma/serum micronutrients between Okinawan and Oregonian elders: a pilot study

Certain micronutrients are protective against cognitive decline. We examined whether there is any uniform pattern of circulating micronutrients cross-culturally that are associated with successful cognitive aging. For the U.S. sample, we used the stored serum/plasma of 115 participants, collected in Oregon, USA. The Okinawa sample consisted of 49 participants selected using similar inclusion criteria as […]

Development and validation of the Memory Orientation Screening Test (MOST™): A better screening test for dementia

Objectives: Accurate, economical identification of cognitive impairment would increase dementia detection and improve care of older patients.; Design: Analysis of archival neuropsychological data combined 3-word recall, time orientation, list memory, and clock drawing into the Memory Orientation Screening Test (MOST ™). The MOST was compared with Folstein Mini Mental State Examination (MMSE) and Mini-Cog to […]

The association of statin use and statin type and cognitive performance: analysis of the reasons for geographic and racial differences in stroke (REGARDS) study

Background: Statin use and type have been variably associated with impaired or improved cognitive performance.; Hypothesis: To assess the association of statin use and type (lipophilic vs hydrophilic) and cognitive impairment.; Methods: Cross-sectional analysis of 24 595 participants (7191 statin users and 17 404 nonusers) age > or = 45 years, from a population-based national […]

A subacute model of geriatric care for frail older persons: the Tan Tock Seng Hospital experience

Introduction: The subacute care unit in Tan Tock Seng Hospital (TTSH) was set up in May 2009. We examined its impact on the transitions at the nexus between hospital and community sectors, patients’ discharge destination and functional performance.; Materials and Methods: We studied patients admitted during the initial 6-month period (May to October 2009). Differences […]

Longer duration of hormonal contraceptive use predicts better cognitive outcomes later in life

Background: The cognitive effects of postmenopausal hormone therapy (HT) have been studied extensively, but little is known about the relationship between premenopausal hormone use and cognition. Hormonal contraceptive use vs. nonuse may be a potential factor influencing cognitive processes in midlife. The aim of this study is to explore the effect of modification of hormone […]

Extended results of the Alzheimer’s disease anti-inflammatory prevention trial

Background: Epidemiologic evidence suggests that nonsteroidal anti-inflammatory drugs (NSAIDs) delay onset of Alzheimer’s dementia (AD), but randomized trials show no benefit from NSAIDs in patients with symptomatic AD. The Alzheimer’s Disease Anti-inflammatory Prevention Trial (ADAPT) randomized 2,528 elderly persons to naproxen or celecoxib versus placebo for 2 years (standard deviation = 11 months) before treatments […]

Donepezil provides greater benefits in mild compared to moderate Alzheimer’s disease: implications for early diagnosis and treatment

We assessed the cognitive and functional outcomes of donepezil treatment in mild versus moderate Alzheimer’s disease (AD) patients. We performed a 6-month prospective, observational, multicenter study of the progression of cognitive and functionality abilities in a large sample patients with AD who initiated treatment with donepezil in monotherapy. According to baseline mini mental state examination […]

Effects of rivastigmine on common symptomatology of Alzheimer’s disease (EXPLORE)

Objective: To evaluate, in a real-world clinical setting, the efficacy of rivastigmine in the management of six symptoms commonly associated with Alzheimer’s disease (AD).; Methods: This was a naturalistic, prospective, open-label, multi-centre, post-marketing, observational study. Data were collected by the participating study physicians at their practices across Canada. Subjects had a clinical diagnosis of mild-to-moderate […]

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