Relative effect sizes for measures of risk

Effect sizes are an important component of experimental design, data analysis, and interpretation of statistical results. In some situations, an effect size of clinical or practical importance may be unknown to the researcher. In other situations, the researcher may be interested in comparing observed effect sizes to known standards to quantify clinical importance. In these cases, the notion of relative effect sizes (small, medium, large) can be useful as benchmarks. Although there is generally an extensive literature on relative effect sizes for continuous data, little of this research has focused on relative effect sizes for measures of risk that are common in epidemiological or biomedical studies. The aim of this paper, therefore, is to extend existing relative effect sizes to the relative risk, odds ratio, hazard ratio, rate ratio, and Mantel–Haenszel odds ratio for related samples. In most scenarios with equal group allocation, effect sizes of 1.22, 1.86, and 3.00 can be taken as small, medium, and large, respectively. The odds ratio for a non rare event is a notable exception and modified relative effect sizes are 1.32, 2.38, and 4.70 in that situation.     

Risky Sexual Behaviors and Pregnancy Outcomes in Young Adulthood Following Substantiated Childhood Maltreatment: Findings From a Prospective Birth Cohort Study

Childhood maltreatment is associated with a range of adverse mental and physical health outcomes, including increased rates of sexually transmitted infections (STIs) later in life. However, the impact on risky sexual behaviors and pregnancy outcomes has not been adequately studied. This is particularly true for physical abuse, emotional abuse, and neglect. We examined associations between prospectively substantiated childhood maltreatment and reports of risky sexual behaviors by men and women, as well as selected pregnancy outcomes in women. We followed up 3,081 (45.7% female) participants from the Mater-University of Queensland Study of Pregnancy, a prospective Australian birth cohort study. Using logistic regression, we examined the association between substantiated childhood maltreatment from birth to 14 years, and self-reported risky sexual behaviors and youth pregnancy outcomes at the 21-year follow-up. In adjusted analyses, children who had experienced multiple childhood maltreatment exhibited more risky sexual behaviors than their nonmaltreated counterparts. In specific models, those exposed to each form of childhood maltreatment, independent of co-occurring forms of childhood maltreatment, had an increased likelihood of risky sexual behaviors, particularly an early sexual debut and, for women, youth pregnancy. Neglect was also associated with multiple sexual partners, and emotional abuse with higher rates of miscarriage. There was no difference between men and women in how different forms of childhood maltreatment predicted risky sexual behaviors in young adulthood. All forms of substantiated childhood maltreatment, including multiple substantiations, were associated with risky sexual behavior in both sexes as well as higher rates of youth pregnancy in women. Moreover, emotional abuse persistently predicted miscarriages in young adult women. Understanding the association between childhood maltreatment and risky sexual behaviors and youth pregnancy outcomes may help suggest preventive strategies.     

The rich and exacting role of the social worker in family foster care

This article is about the role of the professional social worker in a child placing agency. It emphasizes the worker's central role in coordinating or managing the various facets of family foster care.Many aspects of family foster care are discussed, with emphasis upon permanence and the tasks of the social worker with the respective participants. The article briefly examines these activities, such as working with the child, the birth parents and the foster parents, within the contexts of the primary mission which is to restore family relationships or to help the child to find and build new ones.Mr. Terpstra is employed by the U.S. Children's Bureau where he serves as a specialist in family foster care, child care insittutions and licensing of children's services.     

Impacts of privatization: Use of multimodal survey

Given current local government fiscal stress, the privatization of public services has been considered as a way to balance local government budgets and improve community service efficiencies. However, along with economic efficiency, the social efficiency of the privatization should be considered. Social efficiency not only incorporates economic efficiency but also includes accountability and equity. In this study, the economic and social impact of the potential privatization of a local utility (Churchill County Communications) is estimated. A web-based questionnaire was employed to collect data quickly and efficiently from CC Communication's employees and employ the questionnaire results in the analysis. Using and augmented input–output model of Churchill County, the analysis showed that privatization would reduce Churchill County employment by 279 jobs and reduce county household income by $36.171 million. In addition, the county could lose up to 14,735 hr of volunteer time and $85,233 in charitable donations if CC Communications were privatized.     

Macroergonomic aspects in the design of development programs in IDCs

This paper revisits three reports on ergonomic aspects of development initiatives taking place in Industrially Developing Countries (IDCs). These include a macro-ergonomics intervention in a habitation community in Cape Verde (aimed at designing solutions contributing to sustainable development), the evolution of poultry growers' control strategies as an integrative broiler operation is introduced in Mozambique, and a set of macro-ergonomic considerations related to the Agro Forestry Village Project in Mozambique. The paper seeks to set the reviewed development endeavors against the backdrop of the goals of ergonomics interventions. This reflection may inform development agents in future processes of design and implementation of integrated community and work systems transformation.     

The pains of immigrant imprisonment

The immigrant detention system in the United States is civil, rather than criminal, and therefore nonpunitive. However, in practice, detained immigrants lacking many basic constitutional protections find themselves in facilities that are often indistinguishable from prisons and jails. In this paper, we explore the crisis of immigrant imprisonment at the affective level, focusing on the painful experiences of immigrant detainees, while also emphasizing its systemic and racialized nature. Specifically, we place a review of a growing body of research that draws connections between immigrant detention and mass imprisonment alongside the findings from numerous reports issued by human rights organizations on the conditions of confinement within immigrant detention facilities. Using a “pains of imprisonment” framework, we highlight four particularly prominent “pains”: containment, exploitation, coercion, and legal violence. We suggest the infliction of such pain, especially when contextualized within a broader history of Latina/o oppression, demonstrates that immigration prisons are in fact punitive, “lawless spaces” where penal oppression is exercised. We conclude with a call for sociologists to become more attentive to this crisis, and to appreciate the similarities between immigration detention and other forms of racialized social control—namely, mass incarceration.     

Economic Determinants of Voting in an Era of Union Decline*

Objective. The objective of this article is to test competing hypotheses regarding union vote effects by economic sector. Overlooked in existing research on political participation and the labor movement is de‐unionization's sectoral dimension: declining union rolls is a private‐sector phenomenon. The sectoral dimension of union decline carries important political consequences if the influence of unions on voter turnout varies by sector. Method. Using Current Population Survey (CPS) November Voting and Registration Supplements for all national elections between 1984 and 2006, I estimate union vote effects for public‐ and private‐sector employees. Results. The results of the analyses reveal that while union members continue to vote at higher rates than otherwise similar nonmembers, the union effect is nearly three times as large for private‐sector members: private‐sector unionists have a predicted probability of voting 6.7 points higher than nonmembers, while public‐sector members have a predicted probability of voting only 2.4 points higher than nonmembers. Conclusions. Given the small fraction of private‐sector workers now in labor unions, recent fluctuations in the unionization rate have little aggregate affect on turnout. Given that private‐sector union members tend to be less educated and earn less than their public‐sector counterparts, the near disappearance of private‐sector unions from the economic landscape removes an important institutional buffer against political inequality in the United States.     

The Cost Effectiveness of Hepatitis Immunization for US College Students

Abstract

Hepatitis B immunization is recommended for all American children, and hepatitis A immunization is recommended for children who live in areas with elevated disease rates. Because hepatitis A and B occur most commonly in young adults, the authors examined the cost effectiveness of college-based vaccination. They developed epidemiologic models to consider infection risks and disease progression and then compared the cost of vaccination with economic, longevity, and quality of life benefits. Immunization of 100,000 students would prevent 1,403 acute cases of hepatitis A, 929 cases of hepatitis B, and 144 cases of chronic hepatitis B. Hepatitis B vaccination would cost the health system $7,600 per quality-adjusted life year (QALY) gained but would reduce societal costs by 6%. Hepatitis A/B vaccination would cost the health system $8,500 per QALY but would reduce societal costs by 12%. Until childhood and adolescent vaccination can produce immune cohorts of young adults, college-based hepatitis immunization can reduce disease transmission in a cost-effective manner.