BACKGROUND The rapid growth of eHealth could have the unintended effect of deepening health disparities between population subgroups. Most concerns to date have focused on population differences in access to technology, but differences may also exist in the appropriateness of online health content for diverse populations. OBJECTIVE This paper reports findings from the first descriptive study ...

Survivorship risk is a significant factor in the provision of retirement income. Survivor derivatives are in their early stages and offer potentially significant welfare benefits to society. This article applies the approach developed by Dowd et al. (2006), Olivier and Jeffery (2004), Smith (2005), and Cairns (2007) to derive a consistent framework for pricing a wide range of linear survivor de...

BACKGROUND The purpose of this study was to design a brief questionnaire to measure fears about recurrence and health in cancer survivors. Research involving fear of recurrence has been increasing, indicating that it is an important concern among cancer survivors. METHODS We developed and tested a six-item instrument, the Assessment of Survivor Concerns (ASC). Construct validity was examined ...

We propose an adaptive and parameter-independent per-survivor processing algorithm to improve the receiver performance on time-varying channels. With a variable step size for a plurality of survivor paths, this new method eliminates the dependency of all the survivor paths and improves the convergence rate of channel estimation.

Research has shown that stroke has a significant impact on the stroke survivor’s quality of life (QOL). Less well known is the negative impact on the stroke caregiver’s QOL. Yet, poor QOL in caregivers is associated with rehospitalization of the stroke survivor and increased healthcare costs. Given the severe disability and limitations in activities of daily living present in stroke, caregivers...

The survivor principle holds that the competitive process weeds out inefficient firms, so that hypotheses about efficient behavior can be tested by observing how firms actually behave. This principle underlies a large body of empirical work in strategy, economics, and management. But do competitive markets actually display what is efficient? Is the survivor principle reliable? We evaluate the s...

Observational studies on transfusion in trauma comparing high versus low plasma:erythrocyte ratio were prone to survivor bias because plasma administration typically started later than erythrocytes. Therefore, early deaths were categorized in the low plasma:erythrocyte group, whereas early survivors had a higher chance of receiving a higher ratio. When early deaths were excluded, however, a bia...