OBJECTIVE: This study compared the hypertension prevalence, awareness, treatment and control in Chicago, Illinois and Detroit, Michigan to that of the general United States population (aged > or = 25 years) for the period 2001-2003. We examined whether and how much 1) urban populations have less favorable hypertension-related outcomes and 2) the rates of racial/ethnic… Continue reading Variations in hypertension-related outcomes among Blacks, Whites and Hispanics in two large urban areas and in the United States
Keyword: PST - Ppublish
A functional multiple imputation approach to incomplete longitudinal data
In designed longitudinal studies, information from the same set of subjects are collected repeatedly over time. The longitudinal measurements are often subject to missing data which impose an analytic challenge. We propose a functional multiple imputation approach modeling longitudinal response profiles as smooth curves of time under a functional mixed effects model. We develop a… Continue reading A functional multiple imputation approach to incomplete longitudinal data
Predictors of self-report of heart failure in a population-based survey of older adults
BACKGROUND: Little research has been conducted on the predictors of self-report or patient awareness of heart failure (HF) in a population-based survey. The objective of this study was to (1) test the agreement between Medicare administrative and Health and Retirement Study (HRS) survey data and (2) determine predictors associated with self-report of HF, using a… Continue reading Predictors of self-report of heart failure in a population-based survey of older adults
On using summary statistics from an external calibration sample to correct for covariate measurement error
BACKGROUND: Covariate measurement error is common in epidemiologic studies. Current methods for correcting measurement error with information from external calibration samples are insufficient to provide valid adjusted inferences. We consider the problem of estimating the regression of an outcome Y on covariates X and Z, where Y and Z are observed, X is unobserved, but… Continue reading On using summary statistics from an external calibration sample to correct for covariate measurement error
Multilevel factorial experiments for developing behavioral interventions: power, sample size, and resource considerations
Factorial experimental designs have many potential advantages for behavioral scientists. For example, such designs may be useful in building more potent interventions by helping investigators to screen several candidate intervention components simultaneously and to decide which are likely to offer greater benefit before evaluating the intervention as a whole. However, sample size and power considerations… Continue reading Multilevel factorial experiments for developing behavioral interventions: power, sample size, and resource considerations
Depressive symptoms in spouses of older patients with severe sepsis
OBJECTIVE: To examine whether spouses of patients with severe sepsis are at increased risk for depression independent of the spouse's presepsis history, whether this risk differs by sex, and is associated with a sepsis patient's disability after hospitalization. DESIGN: Prospective longitudinal cohort study. SETTING: Population-based cohort of U.S. adults over 50 yrs old interviewed as… Continue reading Depressive symptoms in spouses of older patients with severe sepsis
State-based estimates of mammography screening rates based on information from two health surveys
OBJECTIVES: We compared national and state-based estimates for the prevalence of mammography screening from the National Health Interview Survey (NHIS), the Behavioral Risk Factor Surveillance System (BRFSS), and a model-based approach that combines information from the two surveys. METHODS: At the state and national levels, we compared the three estimates of prevalence for two time… Continue reading State-based estimates of mammography screening rates based on information from two health surveys
Diabetes-related change in physical disability from midlife to older adulthood: evidence from 1996-2003 Survey of Health and Living Status of the Elderly in Taiwan
One in five older adults in Taiwan have been diagnosed with diabetes. This study drew on disability data for 5121 nationally representative middle-aged and older adults from the 1996-2003 Survey of Health and Living Status of the Elderly in Taiwan (SHLSET). By employing cohort sequential design and multilevel models, it combined cross-sectional and longitudinal evidence… Continue reading Diabetes-related change in physical disability from midlife to older adulthood: evidence from 1996-2003 Survey of Health and Living Status of the Elderly in Taiwan
Tests and expenditures in the initial evaluation of peripheral neuropathy
BACKGROUND: Peripheral neuropathy is a common disorder in which an extensive evaluation is often unrevealing. METHODS: We sought to define diagnostic practice patterns as an early step in identifying opportunities to improve efficiency of care. The 1996-2007 Health and Retirement Study Medicare claims-linked database was used to identify individuals with an incident diagnosis of peripheral… Continue reading Tests and expenditures in the initial evaluation of peripheral neuropathy