On the advantages of the non-concave penalized likelihood model selection method with minimum prediction errors in large-scale medical studies

Variable and model selection problems are fundamental to high-dimensional statistical modeling in diverse fields of sciences. Especially in health studies, many potential factors are usually introduced to determine an outcome variable. This paper deals with the problem of high-dimensional statistical modeling through the analysis of the trauma annual data in Greece for 2005. The data set is divided into the experiment and control sets and consists of 6334 observations and 112 factors that include demographic, transport and intrahospital data used to detect possible risk factors of death. In our study, different model selection techniques are applied to the experiment set and the notion of deviance is used on the control set to assess the fit of the overall selected model. The statistical methods employed in this work were the non-concave penalized likelihood methods, smoothly clipped absolute deviation, least absolute shrinkage and selection operator, and Hard, the generalized linear logistic regression, and the best subset variable selection.The way of identifying the significant variables in large medical data sets along with the performance and the pros and cons of the various statistical techniques used are discussed. The performed analysis reveals the distinct advantages of the non-concave penalized likelihood methods over the traditional model selection techniques.     

Korean Survivors of the Japanese “Comfort Women” System: Understanding the Lifelong Consequences of Early Life Trauma

Prior to and during World War II, thousands of girls and young women were abducted from Korea and forced into sexual slavery by the Japanese government. Termed comfort women, these girls and young women suffered extreme sexual, physical, and emotional abuse and trauma. Research on this group is not well-developed and people know little of the impact of this early life trauma on the lives of these women who are now in later life. Using snowball sampling, 16 older adult survivors of the comfort women system participated in semistructured qualitative interviews. Thematic analysis was conducted to gain an understanding of the trauma that these women suffered and how it impacted their lives. Results revealed the depths of the abuse these women suffered, including repeated rapes, physical beatings, humiliation, forced surgery and sterilization, and social exclusion. These early traumatic experiences appeared to reverberate throughout their lives in their family relations, their inability to marry and to conceive children, and their emotional and physical well-being throughout the life course and into later life. The experiences of these survivors illustrate the lasting impact of early-life trauma and can guide interventions with current survivors of sexual abuse or trafficking.     

Intimate partner violence,trauma, and mental health need among female community college students

ABSTRACT

Objective: The impact of interpersonal violence on college students has received considerable attention, yet no studies have been conducted among community college students, who comprise 40% of all American college students, and have unique risk factors and needs. Community College students are more likely to be women, people of color, working, parenting, and first generation college students. Participants: Data were collected from a simple random sample from four community colleges (n=435). Methods: A cross-sectional quantitative survey was used to assess the extent of intimate partner violence, trauma exposure, sexual violence, and associated mental health consequences among female students. Results: Over 27% of participants reported IPV in the past year, while 25% reported sexual assault and 34% reported other uncomfortable sexual experiences in their lifetime. Nearly 20%of participants were currently reporting PTSD symptoms. Conclusions: Community Colleges should work with service providers to build their capacity to respond to students' needs.     

Psychological Distress of Cuban Americans Affected by Restrictive U.S. Travel Policies

We describe the mental health consequences of United States travel policies affecting Cuban Americans (CAs) with relatives in Cuba and discuss these policies in the context of U.S. domestic politics and the Bush administration's desire for regime change in Cuba. Policies put into effect in 2004 restrict CAs from visiting relatives in Cuba more than once every 3 years, narrowly define family whom CAs can legally visit, and limit the assistance they can provide their Cuban relatives. We share case reports based on qualitative interviews with 53 Cuban Americans that illustrate travel-related psychological distress (TRPD) experienced by CAs in response to the restrictions. We note the difficulties CAs experience in coping with TRPD and the need for political and mental health interventions to address this condition. TRPD is directly related to the government's violation of the human and constitutional rights of CAs to travel freely. It is the responsibility of the state to restore those rights. Human services professionals should oppose TRPD as antithetical to family well-being.     

Experience of Racism as a Correlate of Developmental and Health Outcomes Among Urban Adolescent Mental Health Clients

Summary

Correlates of race/ethnicity and perceived racism among 760 urban, predominantly Hispanic/Latino and African-American, adolescent mental health clients were investigated using an exploratory, clinical data-mining approach. All racial/ethnic groups reported substantial rates of racism, ranging from 80.0% for Asian/Pacific Islanders to 32.4% for Hispanic/Latinos. Racism was associated with significantly elevated environmental risk (e.g., violence, sexual abuse or assault, exposure to drug use), behavioral risk (e.g., drug use) and worry (e.g., worry about hurting self or others, worry about doing dangerous things). Overall, racism was significantly associated with more negative health and well-being outcomes than ability to get a gun, sexual orientation, and being enrolled in school. The authors conclude that experience of racism should be routinely assessed at intake to mental health services along with traumatic experiences such as physical or sexual abuse.     

Educator Sexual Abuse: Two Case Reports

Sexual abuse by educators has become an increasingly noted type of sexual abuse, especially among adolescents, for two reasons. First, there is a potential for these cases to be silent and prolonged and second, when disclosed, the forensic implications usually include both criminal and/or civil sanctions. For forensic case evaluations, developmental traumatology, or the intersection of the traumatic event(s) at a particular age of the student, is often the evaluating framework. We report on two forensic cases of a female student and a male student to emphasize the dynamics of adolescent sexual victimization, its impact on adolescent development, and evidence-based practice for symptom identification and treatment.     

A Short Form of the Trauma Symptom Checklist for Young Children

A short form of the Trauma Symptom Checklist for Young Children was derived from the original 90 items. An exploratory factor analysis of each factor identified the four items from each of the original factors with the highest eigenvalues. These items were subjected to confirmatory factor analysis. The best fit was obtained for an 8-factor, 32-item model. The short form evidenced good convergent validity with parent ratings obtained from the Child Behavior Checklist, the Child Sexual Behavior Inventory, and the University of California at Los Angeles Post-traumatic Stress Disorder Reaction Index (UCLA PTSD RI). Norms (t-scores and percentiles based on raw scores) were calculated by age and by gender. The short form has promise as a screening measure with parents in settings like a child advocacy center.     

The Dialectic of Chaos and Control in the Experience of Therapists Who Work With Sexually Abused Children

The aim of this study is to contribute to the understanding the interaction between the emotionally destructive intensity of the trauma and forces that foster growth in therapists who treat sexually abused children. Data were collected through in-depth semistructured interviews with 14 experienced social workers. Content analysis reveals two emotional poles. At one pole, the dominant experiences are anxiety, turmoil, and intrusion that disrupted the order in the interviewee’s secure world. At the opposing pole, the dominant experiences are positive, such as hope and faith. These formed the basis of empowering meaning construction that engendered a sense of control, enabling the therapists to trust the value of intervention with sexually abused children. The discussion uses a dialectical perspective to examine how interaction between these two poles enhances our understanding of the emotional and existential threats inherent in working with children who have experienced sexual abuse and on the potential for positive change.     

Gender Differences in the Characteristics and Outcomes of Sexually Abused Preschoolers

ABSTRACT

This study examined whether sexually abused preschool boys and girls (ages 2–5) differed in terms of abuse characteristics or psychological outcomes. A retrospective chart review of 74 cases of sexually abused children (29 boys and 45 girls) treated at an urban mental health clinic in Maryland was conducted. Information was collected on: (1) demographics; (2) abuse characteristics (victim's age, type of sexual abuse, relationship to perpetrator); (3) abuse discovery pattern (accidental vs. purposeful); (4) children's symptomatology; and (5) child and familial factors. No differences were found between boys and girls in terms of the victim's age at the time of abuse, perpetrator's age, or the identity of the perpetrator. However, boys and girls experienced different forms of abuse; boys were more likely to experience fondling, oral and anal intercourse. The majority of boys and girls were abused by males, typically someone they knew (biological parent/parent figure or relative). No differences were evident in the type of disclosure; however, older children were more likely to self-disclose than younger children. Results indicated that boys exhibited more developmental delays and aggressive symptoms than girls. Clinical implications of these findings are discussed as well as recommendations for future research.