Quality-adjusted life years (QALYs) associated with limitations in activities of daily living (ADL) in a large longitudinal sample of the U.S. community-dwelling older population.

Background: The staging method for activities of daily living (ADLs) limitations developed by Stineman and colleagues that classifies people into five stages can reflect severity of activity limitations.

Objective: To assess the impact of stages of limitations in ADLs on quality-adjusted life years (QALYs) and the relative severity of each ADL limitation for a large, nationally-representative sample of the U.S.

Prevalence, risk factors, and burden of disease for falls and balance or walking problems among older adults in the U.S.

This study assesses the prevalence of falls, factors predicting future falls, and health impacts of falls and balance or walking problems for U.S. older adults.

Comparing the Performance of 2 Health Utility Measures in the Medicare Health Outcome Survey (HOS).

Background: The Medicare Health Outcomes Survey (HOS), a nationwide annual survey of Medicare beneficiaries, includes the Centers for Disease Control and Prevention's HRQOL-4 questionnaire and Veterans RAND 12-item Health Survey (VR-12). This study compared EQ-5D scores derived from the HRQOL-4 (dEQ-5D) to SF-6D scores derived from VR-12.

Methods: Data were from Medicare HOS Cohort 15 (2012 baseline; 2014 follow-up).

Quality-adjusted Life Years (QALY) for 15 Chronic Conditions and Combinations of Conditions Among US Adults Aged 65 and Older.

Background: Although the life expectancy for the US population has increased, a high proportion of this population has lived with ≥1 chronic conditions. We have quantified the burden of disease associated with 15 chronic conditions and combinations of conditions by estimating quality-adjusted life years (QALYs) for older US adults.

Research Design: Data were from the Medicare Health Outcomes Survey Cohort 15 (baseline survey in 2012, follow-up survey 2014, with mortality follow-up through January 31, 2015).