Martin Rudberg

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OBJECTIVES To develop and validate an instrument for stratifying older patients at the time of hospital admission according to their risk of developing new disabilities in activities of daily living (ADL) following acute medical illness and hospitalization. DESIGN Multi-center prospective cohort study. SETTING Four university and two private non-federal(More)
E$cient long-term capacity management is vital to any manufacturing "rm. It has implications on competitive performance in terms of cost, delivery speed, dependability and #exibility. In a manufacturing strategy, capacity is a structural decision category, dealing with dynamic capacity expansion and reduction relative to the long-term changes in demand(More)
BACKGROUND Short-stay hospitalization in older patients is frequently associated with a loss of function, which can lead to a need for postdischarge assistance and longer-term institutionalization. Because little is known about this adverse outcome of hospitalization, this study was conducted to (1) determine the discharge and 3-month postdischarge(More)
BACKGROUND Falls are prevalent in older persons and can have serious consequences. METHODS Data from the Longitudinal Study on Aging were analyzed to study the relationship between falls and both mortality and functional status in 4270 respondents age 70 and over. The effects of demographic traits, chronic conditions, and disability present at baseline(More)
CONTEXT Although the use of feeding tubes among older individuals stirs considerable controversy, population-based descriptive data regarding patient outcomes are scarce. OBJECTIVE To describe hospitalized Medicare beneficiaries having gastrostomies placed and their associated mortality rates. DESIGN Retrospective cohort study. SETTING AND PATIENTS(More)
BACKGROUND Little is known about the relationships of visual impairment and hearing impairments to physical disability. The purpose of this work is to determine if persons 70 years of age and over with these impairments are at risk for increased disability in basic physical activities of daily living (ADLs) compared to persons without these impairments. (More)
OBJECTIVES To determine the presentation, course and duration of delirium in hospitalized older people. DESIGN Observational cohort study. SETTING Inpatient surgical and medical wards at a university hospital. PARTICIPANTS 432 people over the age of 65. MEASUREMENTS All participants were screened daily for confusion and, in those who were confused,(More)
BACKGROUND It has long been thought that individual activities of daily living (ADLs) can be combined to form a hierarchy or Guttman scale. The purpose of this study is to determine if ADLs fit into a single hierarchical structure, and to examine how such a hierarchy should be evaluated. METHODS We use data from the baseline year of the Longitudinal Study(More)
The focus of this article is to determine the probability of making transitions through various ADL limitation levels, controlling for gender, age, and baseline ADL level, and using death as a competing outcome. We use the four waves of the Longitudinal Study of Aging and categorical data techniques to model the probability of these transitions. We find(More)
OBJECTIVE The purpose of this study was fourfold; to determine the rate of delirium among hospitalized older persons, to contrast the clinical outcomes of patients with and without delirium, to identify clinical predictors of delirium, and to validate the predictive model in an independent sample of patients. DESIGN Two prospective cohort studies (More)