Estimation under Cox proportional hazards model with covariates missing not at random

This paper considers likelihood-based estimation under the Cox proportional hazards model in the situations where some covariate entries are missing not at random. Assuming the conditional distribution of the missing entries is known, we demonstrate the existence of the semiparametric maximum likelihood estimator of the model parameters, establish the consistency and weak convergence. By simulation, we examine the finite-sample performance of the estimation procedure, and compare the SPMLE with the one resulted from using an estimated conditional distribution of the missing entries. We analyze the data from a tuberculosis (TB) study applying the proposed approach for illustration.     

Does the Village Model Help to Foster Age-Friendly Communities?

This article explores the potential role of the Village model, a social initiative that emphasizes member involvement and service access, in helping communities to become more age-friendly. A survey of 86.3% of operational Villages examined activities designed to help members access a variety of supports and services consistent with the World Health Organization's (WHO) Global Network of Age-Friendly Cities and Communities program model, as well as other potential contributions to community age friendliness. Analysis revealed that 85.5% of Villages provided assistance with at least six of the eight WHO domains, but only 10.1% implemented features of all eight; more than one-third were engaged in direct or indirect efforts to improve community physical or social infrastructures or improve community attitudes toward older persons. These findings suggest that Villages and other social organizations may have untapped potential for enhancing their members’ ability to age in place consistent with the goals of age-friendly initiatives while also promoting constructive changes in the overall community.     

A conceptual framework for examining the promise of the NORC program and Village models to promote aging in place

A growing paradigm shift emphasizes efforts to promote aging in place not only by helping aging individuals and families, but also by addressing and engaging communities. This paper explores the idea of developing community supports for aging in place by examining two models that incorporate this approach into practice: Naturally Occurring Retirement Community Supportive Service Programs (NORC programs) and Villages. Drawing on research regarding social–relational aspects of communities and later-life health and well-being, we present an integrative conceptual framework positing three categories of activities and services (civic engagement and empowerment activities; social relationship building activities; services to enhance access to resources)–as well as the initial outcomes and intermediate outcomes–through which the NORC program and Village models potentially achieve their long-term goal of promoting aging in place. Based on this framework, we conclude with directions for future research on community initiatives that support aging in place.     

Sustaining Low Pay in Aged Care Work

This article examines the ways in which employers in the Australian aged care sector justify and sustain low pay for work that is both highly skilled and in high demand. We build on a large body of feminist research that analyses why care work is devalued by showing how such devaluing is produced at the level of the organization. To do so we examine some of the specific discursive mechanisms that sustain low pay. We show that aged care employers actively reproduce a familial logic of care that represents paid aged care work as unskilled and natural for women and therefore not deserving of higher pay. We argue that in order to achieve their goals employers must develop and sustain an opposition between care as love‐centred and work as money‐centred, while upholding the notion that they provide quality care for care recipients.     

Is Executive Cognitive Function Associated with Youth Gambling?

Our objectives for this report were to identify trajectories of youth gambling behavior, and to examine their relation to executive cognitive function (ECF) and associated problem behaviors. Philadelphia school children, enrolled at ages 10–12 years (n = 387; 49% male), completed three annual assessments of risk behaviors, ECF, impulsivity, problem behaviors and demographics. Across ages 10–15 years, using methods from Nagin et al., two groups were identified: Early Gamblers (n = 111) initiated early and continued in later assessments, and Later Gamblers (n = 276) initiated at later ages and gambled less. Betting money on cards and sports were the most frequently reported gambling behaviors. Using gambling group as outcome, final backward selection logistic regression model showed Early Gamblers are more likely male (P = 0.001), report more active coping (P = 0.042), impulsive behaviors (P ≤ 0.008), and have friends who gamble (P = 0.001). Groups were similar in ECF, parental monitoring, marital status, SES, and race. Early Gamblers had higher incidence of problem behaviors and drug use (all P ≤ 0.006). Two gambling groups were identified in early adolescence with Early Gamblers showing higher levels of impulsivity and comorbid problems but similar levels of ECF compared to Late Gamblers. As more gambling groups are identified through later adolescence, ECF may emerge as a relevant precursor of problem gambling at this later time.     

Voluntary After‐School Alcohol and Drug Programs for Middle School Youth: If You Build it Right,They Will Come

Few after‐school programs target alcohol and other drug (AOD) use because it is difficult to encourage a diverse group of youth to voluntarily attend. The current study describes CHOICE, a voluntary after‐school program which targeted AOD use among middle school students. Over 4,000 students across eight schools completed surveys and 15% participated in CHOICE. Analyses indicated that there were some differences between CHOICE participants and nonparticipants. For example, African American and multiethnic students were more likely to attend. Past month alcohol users were more likely to initially attend, and marijuana users were more likely to continue attendance. Thus, CHOICE reached students of different racial and ethnic groups and attracted higher risk youth who may not typically obtain prevention services.     

Diversity Regimes in Worker Cooperatives: Workplace Inequality under Conditions of Worker Control

Two major shifts in contemporary work organizations—“employee participation” and “diversity management”—have typically been studied in isolation from one another. Building on theoretical work by Acker (2006a,b), we ask how the interaction of these two constructs has affected the pursuit of workplace democracy at two worker cooperatives in Northern California. Using qualitative methods, we find that distinct “diversity regimes” have emerged at these establishments, substantially affecting the configurations of inequality that evolved. We distinguish two types of diversity regimes—“utilitarian” and “communitarian”—which operate either to obscure the workings of inequality or to foster attention to their presence. Our results suggest that how sociodemographic differences are managed has material consequences for the development of egalitarian structures at work.     

The 2011 Industrial Relations Reform and Nominal Wage Adjustments in Greece

This study investigates nominal contractual base-wage adjustments in Greece associated with the 2011 industrial relations reform which re-defined the limits within which base wages could oscillate and allowed workers’ associations to negotiate for wages at the firm level. The assessment covers the period 2010–2013 and is based on information extracted from the universe of firm-level contracts signed in this period. We found that firm-level contracts increased dramatically shortly after the reform, now covering a larger pool of workers, especially in larger firms, and are associated with higher base-wage reductions in the post-reform period. At the firm level, wage reductions are higher when workers are represented by a workers’ association rather than a typical trade union. In addition, a heterogeneous effect is uncovered regarding the factors that shape base-wage adjustments (firm size, profitability, structure of bargaining body and aggregate unemployment) between new and traditional forms of workers’ representation in collective bargaining.     

The Motherhood Penalty at Midlife: Long‐Term Effects of Children on Women's Careers

The authors build on prior research on the motherhood wage penalty to examine whether the career penalties faced by mothers change over the life course. They broaden the focus beyond wages to also consider labor force participation and occupational status and use data from the National Longitudinal Survey of Young Women to model the changing impact of motherhood as women age from their 20s to their 50s (n = 4,730). They found that motherhood is “costly” to women's careers, but the effects on all 3 labor force outcomes attenuate at older ages. Children reduce women's labor force participation, but this effect is strongest when women are younger and is eliminated by the 40s and 50s. Mothers also seem able to regain ground in terms of occupational status. The wage penalty for having children varies by parity, persisting across the life course only for women who have 3 or more children.