Fredric D. Wolinsky

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This study used the standard error of measurement (SEM) to evaluate intra-individual change on both the Chronic Respiratory Disease Questionnaire (CRQ) and the SF-36. After analyzing the reliability and validity of both instruments at baseline among 471 COPD outpatients, the SEM was compared to established minimal clinically important difference (MCID)(More)
OBJECTIVE To compare the standard error of measurement (SEM) with established standards for clinically relevant intra-individual change in an evaluation of health-related quality of life. DESIGN Secondary analysis of data from a randomized controlled trial. SUBJECTS Six hundred and five outpatients with a history of cardiac problems attending the(More)
Older adults are expected and frequently found to report less control than younger adults. In this study, we decompose this negative relationship between age and sense of control using nested multivariable linear regression models that serially introduce sociodemographic characteristics, socioeconomic factors, health status, and subjective religiosity and(More)
Objectives: To establish a link between the minimal important difference (MID) and the standard error of measurement (SEM) for all responsive dimensions of the Asthma Quality of Life Questionnaire (AQLQ). Methods: Secondary data analysis of baseline and follow-up interview data from 198 outpatients with asthma enrolled in a randomized controlled trial and(More)
OBJECTIVE Translation of evidence-based guidelines into clinical practice has been inconsistent. We performed a randomized, controlled trial of guideline-based care suggestions delivered to physicians when writing orders on computer workstations. STUDY SETTING Inner-city academic general internal medicine practice. STUDY DESIGN Randomized, controlled(More)
OBJECTIVES The purpose of this study was to prospectively assess the independent effect of hip fracture on mortalìty, hospitalization, and functional status. METHODS Among 7527 members of the Longitudinal Study of Aging who were over age 70 at baseline, 368 persons with hip fracture occurring between 1984 and 1991 were identified. Median length of(More)
STUDY OBJECTIVE To assess the effects of evidence-based treatment suggestions for hypertension made to physicians and pharmacists using a comprehensive electronic medical record system. DESIGN Randomized controlled trial with a 2 x 2 factorial design of physician and pharmacist interventions, which resulted in four groups of patients: physician(More)
This article examines the effects of the characteristics specified in the behavioral model of health services utilization and measured at baseline on the subsequent risk of nursing home placement and death within four years. Analyses of the 5,151 respondents in the Longitudinal Study on Aging indicate that the risk for nursing home placement is greater for(More)
Although numerous measures have been developed for the evaluation of health-related quality of life (HRQoL), strategies for identifying meaningful intra-individual change in these measures have not kept pace with instrument development. As a result, clinical trial researchers, quality assurance assessment teams and practising clinicians are without(More)
This research examined the effects of changes in functional status on the risks for subsequent nursing home placement and death. Using data on the 3,646 baseline self-respondents to the Longitudinal Study on Aging who were successfully reinterviewed at the first follow-up (1986) and who were not in a nursing home at that time, a two-stage analysis was(More)