New approaches to model-free dimension reduction for bivariate regression

Dimension reduction with bivariate responses, especially a mix of a continuous and categorical responses, can be of special interest. One immediate application is to regressions with censoring. In this paper, we propose two novel methods to reduce the dimension of the covariates of a bivariate regression via a model-free approach. Both methods enjoy a simple asymptotic chi-squared distribution for testing the dimension of the regression, and also allow us to test the contributions of the covariates easily without pre-specifying a parametric model. The new methods outperform the current one both in simulations and in analysis of a real data. The well-known PBC data are used to illustrate the application of our method to censored regression.     

Fingerprint-based background checks for personal care workers: Stakeholder views of policy criteria

Decision makers face difficult choices when tasked with identifying and implementing appropriate mechanisms for protecting the elderly and other vulnerable adults from abuse. A pilot project involving fingerprint-based criminal history background checks for personal care workers in Michigan has supplied an opportunity to examine one such mechanism. In conjunction with the pilot project, we have conducted a stakeholder analysis with the aim of informing decision makers about stakeholder perceptions of standard policy criteria like effectiveness, efficiency, and equity. We employed focus groups and a Web-based survey to collect data from stakeholders. While stakeholders generally see fingerprint-based background checks for personal care workers as potentially effective and as a net benefit, they also point to a variety of contingencies. They also recognize difficulties and constraints for government involvement. This preliminary analysis provides solid foundational information for decision makers and for more extensive benefit–cost analysis.     

Extended household transitions, race/ethnicity, and early childhood cognitive outcomes

Beyond mothers’ union status transitions, other adults’ transitions into and out of the household contribute to family instability, particularly in early childhood. Using the Early Childhood Longitudinal Study-Birth Cohort (N ≅ 8550), this study examines associations between extended household transitions and age 2 cognitive development. A substantial minority of toddlers experiences these transitions, and their consequences vary by household member type, entry versus exit, and race/ethnicity. Extended household transitions predict lower cognitive scores for white children, but the selection of low-socioeconomic status families into extended households explains these disparities. Grandparent transitions predict significantly higher cognitive scores for African American and Latino children than whites, and some “other adult” transitions predict higher scores for Latinos than African Americans and whites. Extended household transitions’ consequences are independent of co-occurring residential moves and partner transitions. Findings suggest that studying extended household transitions is useful for understanding children’s early development, and their consequences vary by race/ethnicity.     

Homelessness and Children's Use of Mental Health Services: A Population-Based Study

This study examined whether children who become homeless differ from other low-income children in their mental health service use before and after their first homeless episode, and to what extent homelessness is associated with an increased likelihood of mental health service use. Differences between children with and without new onset of sheltered homelessness in the use of mental health services emerged following homelessness and widened over time. Sheltered homelessness and foster care placement history were associated with increased odds of receiving inpatient and ambulatory mental health services. Findings underscore the importance of collaborations between homeless assistance, foster care, and mental healthcare in efforts to mitigate family homelessness and collateral needs among homeless children.     

Suicide intervention training for college staff: Program evaluation and intervention skill measurement

Objective: Suicide remains a pressing issue for college communities. Consequently, gatekeeper trainings are often provided for staff. This study examines the effect of one such program, Applied Suicide Intervention Skills Training (ASIST). Participants: 51 college employees received ASIST in August of 2014 and were compared to 30 wait-list control participants. Methods: Repeated Measures ANOVA were used to analyze pre- and post-training: (a) skills at responding to students-at-risk; (b) attitudes toward suicide; (c) knowledge about suicide; and (d) comfort/competence/confidence at helping a student-at-risk. Results: Significant positive training effects were observed for ASIST on self-report measures and also for objectively assessed skill at responding, after adjusting for a potential scoring limitation of the Suicide Intervention Response Inventory, Revised (SIRI-2). Conclusions: ASIST improved the self-perception of college staff at working with students-at-risk of suicide and also their skills at performing an intervention. Further, analysis of SIRI-2 data provides support for a potential instrument revision.     

Family-of-origin and service-member resilience

ABSTRACT

Military research on family resilience has not examined the contribution of family-of-origin to resilience of service-members. In this study, researchers investigated the extent to which predeployed service-members’ perception of resilience was related to characteristics of family-of-origin. The sample consisted of 344 U.S. Army soldiers within 6 months of deployment to Afghanistan, contacted through their units and invited to participate. Soldiers completed a survey of perceived resilience, family-of-origin and immediate family variables, and social support. Data were also collected on age, income, ethnicity, number of deployments, and relationship status. Regression analyses were conducted to explain variation in service-member resilience scores. Sample demographics were compared with the active duty soldier population and correlations among the key family-of-origin and social support variables were reported. Family-of-origin satisfaction was moderately related to service-member resilience for the full sample (β = .176, p = .001) and married sample (β = .260, p = .000). It was weakly related in the unmarried sample (β = .147, p = .226). Family social support explained the most variation in resilience across all samples. Study limitations and guidelines and resources for social work practice, education, and research to strengthen family-of-origin and service-member resilience are provided.     

Approximate tests for the equality of two cumulative incidence functions of a competing risk

In the context of a competing risks set-up, we discuss different inference procedures for testing equality of two cumulative incidence functions, where the data may be subject to independent right-censoring or left-truncation. To this end, we compare two-sample Kolmogorov–Smirnov- and Cramér–von Mises-type test statistics. Since, in general, their corresponding asymptotic limit distributions depend on unknown quantities, we utilize wild bootstrap resampling as well as approximation techniques to construct adequate test decisions. Here, the latter procedures are motivated from tests for heteroscedastic factorial designs but have not yet been proposed in the survival context. A simulation study shows the performance of all considered tests under various settings and finally a real data example about bloodstream infection during neutropenia is used to illustrate their application.     

Childhood adversity,adult homelessness and the intergenerational transmission of risk: a population‐representative study of individuals in households with children

This study tested for associations between childhood adversity, adult homelessness and contexts of developmental risk in households with children. Data were drawn from the 2010 Washington State Behavioral Risk Factor Surveillance System, representative of the population of Washington State residents. Considering adults in households with children, those who experienced higher levels of childhood adversity were more likely to have experienced homelessness in adulthood. Meanwhile, a 10‐factor index of cumulative developmental risk was independently associated with childhood adversity and with adult homelessness. Adult homelessness appears to represent a circumstance through which past childhood adversities are brought forward and associated with contexts of developmental risk for subsequent generations of children.     

A Comparative Analysis of VHA,Non-VHA,and Overall Outpatient Treatment Use Intensity Among Older U.S. Veterans Denied or Awarded VA Service-Connected Disability Compensation

Poorer health is often associated with greater healthcare use among the general population. In contrast, while many veterans denied VA disability compensation ("denied applicants") are as impaired as those awarded VA disability compensation ("awarded applicants"), studies suggest that these veterans may nevertheless utilize less VHA healthcare. Whether they concurrently utilize less non-VHA, and overall healthcare, however, remains a critical, unresolved issue. The 2001 National Survey of Veterans was used to examine VHA, non-VHA, and overall outpatient healthcare treatment use intensity during the previous 12 months among veterans denied or awarded VA disability compensation. Results: Denied applicants were significantly more likely than those awarded to have not used any VHA outpatient healthcare during the previous 12 months (OR=2.45, 95% CI: 1.24, 4.81). Moreover, while not statistically significant, point estimates consistently suggested that denied may have concurrently used more non-VHA, and overall outpatient healthcare than awarded. It appears veterans denied VA disability compensation are forgoing VHA outpatient healthcare services, perhaps in favor of non-VHA outpatient healthcare services. While this result may be consistent with the intent of VA service-connected disability policy, further analysis is necessary to confirm adequate access to healthcare for denied veterans.