37 research outputs found

    The status of the world's land and marine mammals: diversity, threat, and knowledge

    Get PDF
    Knowledge of mammalian diversity is still surprisingly disparate, both regionally and taxonomically. Here, we present a comprehensive assessment of the conservation status and distribution of the world's mammals. Data, compiled by 1700+ experts, cover all 5487 species, including marine mammals. Global macroecological patterns are very different for land and marine species but suggest common mechanisms driving diversity and endemism across systems. Compared with land species, threat levels are higher among marine mammals, driven by different processes (accidental mortality and pollution, rather than habitat loss), and are spatially distinct (peaking in northern oceans, rather than in Southeast Asia). Marine mammals are also disproportionately poorly known. These data are made freely available to support further scientific developments and conservation action

    New genetic loci link adipose and insulin biology to body fat distribution.

    Get PDF
    Body fat distribution is a heritable trait and a well-established predictor of adverse metabolic outcomes, independent of overall adiposity. To increase our understanding of the genetic basis of body fat distribution and its molecular links to cardiometabolic traits, here we conduct genome-wide association meta-analyses of traits related to waist and hip circumferences in up to 224,459 individuals. We identify 49 loci (33 new) associated with waist-to-hip ratio adjusted for body mass index (BMI), and an additional 19 loci newly associated with related waist and hip circumference measures (P < 5 × 10(-8)). In total, 20 of the 49 waist-to-hip ratio adjusted for BMI loci show significant sexual dimorphism, 19 of which display a stronger effect in women. The identified loci were enriched for genes expressed in adipose tissue and for putative regulatory elements in adipocytes. Pathway analyses implicated adipogenesis, angiogenesis, transcriptional regulation and insulin resistance as processes affecting fat distribution, providing insight into potential pathophysiological mechanisms

    Cost-effectiveness of electronic training in domestic violence risk assessment: ODARA 101

    No full text
    The need for domestic violence training has increased with the development of evidence-based risk assessment tools, which must be scored correctly for valid application. Emerging research indicates that training in domestic violence risk assessment can increase scoring accuracy, but despite the increasing popularity of electronic training, it is not yet known whether it can be an effective method of risk assessment training. In the present study, 87 assessors from various professions had training in the Ontario Domestic Assault Risk Assessment either face-to-face or using an electronic training program. The two conditions were equally effective, as measured by performance on a post-training skill acquisition test. Completion rates were 100% for face-to-face and 86% for electronic training, an improvement over a previously evaluated manual-only condition. The estimated per-trainee cost of electronic training was one third that of face-to-face training and expected to decrease. More rigorous evaluations of electronic training for risk assessment are recommended

    Non-Specialization of Criminal Careers Among Intimate Partner Violence Offenders

    No full text
    Many men arrested for intimate partner violence (IPV) commit other types of criminal offenses as well. We examined IPV offenders’ general offending in more detail than previous studies, and tested the ability of criminal career trajectory and an IPV-specific risk assessment (the Ontario Domestic Assault Risk Assessment; ODARA) to predict post-index recidivism. We retrieved police reports and criminal records of 93 men shortly after an IPV index assault and again 7.5 years later. Most (71%) had pre-index criminal charges, and most (62%) had post-index criminal recidivism although fewer (24%) committed post-index IPV. Pre-index criminal career (defined as none, non-violent, violent, IPV) did not predict post-index IPV whereas the ODARA predicted post-index IPV, AUC = .67, as well as other offenses with a moderate or large effect size, including stalking (AUC = .78), sexual assault (AUC = .67), and nonviolent offenses (AUC = .74). In line with prior research findings, we conclude that many men arrested for IPV do not specialize in their criminal careers and that risk assessment in these cases should include risk of both IPV and other offenses; furthermore, an existing IPV risk assessment tool, the ODARA, holds promise for assessing general risk of recidivism among IPV offenders

    Co-Occurring Substance Use, PTSD, and IPV Victimization: Implications for Female Offender Services

    No full text
    The co-occurrence of substance use disorders (SUDs) and post-traumatic stress disorder (PTSD) among women who have been the victims of intimate partner violence (IPV) is complex and causal associations cannot be assumed. Although the presence of co-occurring disorders among IPV victims is a well-established research finding, there is a need for improved understanding of their prevalence and related mental health treatment requirements among female offenders. We review research indicating that service providers working with IPV victims can expect to encounter women with extensive concurrent problems and examine evidence for integrated treatment for SUD, PTSD, and IPV. We propose an outline for assessing and treating SUD and PTSD among female offenders who have experienced IPV victimization. We intend this review to build on previous calls in the co-occurring disorders literature and help integrate the research and treatment evaluation literatures in a way that points to practical implications for policy and practice in female offender services

    Psychiatric Hospital Workers' Exposure to Disturbing Patient Behavior and Its Relation to Post-Traumatic Stress Disorder Symptoms

    No full text
    Background: About 10% of health-care workers experience post-traumatic stress disorder (PTSD); the rate is higher among workers exposed to aggression. Objective: We extended this research by examining PTSD and exposure to violence and other disturbing patient behaviors, among nursing and other staff on inpatient psychiatric units (forensic and nonforensic). Method: Surveys were completed online or in person by 219 respondents (30% response rate). Participants indicated which disturbing behaviors they had been exposed to and ranked the worst three behaviors in each of three categories: most unpleasant to work with, most disruptive to patient care, and most upsetting. Most ( n = 192) also completed the PTSD Checklist (PCL). Results: All but two participants reported exposure to at least one disturbing behavior and ranked violence, feces smearing, and screaming constantly as the worst experiences overall. On the PCL, 24% scored above the cut off for probable PTSD. Nursing staff had the highest scores, with no difference between nursing staff on forensic versus nonforensic units. PCL score showed a small positive correlation with the number of disturbing behaviors experienced. Conclusion: PTSD symptoms are common among psychiatric hospital workers, not only nursing staff. Future research using clinical assessment, longitudinal designs, and measurement of nonviolent disturbing behaviors is recommended

    Adverse Childhood Experiences and Criminal Propensity Among Intimate Partner Violence Offenders

    No full text
    Adverse childhood experiences (ACEs), defined as exposure to abuse and adverse household events, are prevalent among certain offenders including those who commit intimate partner violence (IPV). However, it is not clear how ACEs relate to criminal propensity among IPV offenders, who have been shown to exhibit less antisociality and institutional violence than other offenders. We compared 99 male offenders with a current or previous offense of IPV with 233 non-IPV violent offenders and 103 nonviolent offenders undergoing institutional forensic assessment. This convenience sample allowed for use of extensive psychosocial records as well as study of institutional violence. IPV offenders had the highest mean ACE score and more extensive criminal propensity on some measures (violent and nonviolent criminal history and psychopathy) than both other groups. ACEs were associated with most measures of criminal propensity in the whole sample but with only one (actuarial risk of violent recidivism) in the subsample of IPV offenders. Finding that ACEs are prevalent among IPV offenders even in this sample with extensive mental illness demonstrates the robustness of this phenomenon. IPV offenders, though, are similar to other violent offenders in this respect, and there is insufficient evidence that ACEs represent a criminogenic need among IPV offenders specifically. Further research could draw from the batterer typology literature and attend to IPV offenders’ broader criminal careers

    Assessment of Risk for Seclusion Among Forensic Inpatients: Validation and Modification of the Risk of Administrative Segregation Tool (RAST)

    No full text
    Seclusion is used in psychiatric care to protect patients and staff or to manage aggression but may have adverse effects. The ability to identify at-risk patients could help reduce seclusion. This study tested the Risk of Administrative Segregation Tool’s (RAST) ability to predict any seclusions among 229 male forensic inpatients followed for up to 1 year of hospitalization, and days spent secluded, controlling for length of stay. RAST scores were lower than in correctional samples. The RAST did not predict seclusions in Year 1, but modification of three items to fit the forensic population (RAST-F) offered a small improvement. Among 62 patients hospitalized for more than 1 year, the RAST significantly predicted seclusions in Year 2, and the modifications improved prediction. The present modest findings support the RAST’s potential to help identify patients most in need of clinical efforts to avert seclusion. Replication in larger samples, including female patients, is needed.This research was supported in part by a grant from Public Safety Canada. The views expressed are those of the authors and not necessarily those of Public Safety Canada

    The increasing influence of risk assessment on forensic patient review board decisions

    No full text
    Previous studies of decisions about forensic patients' placement in secure hospitals indicate some changes over time in the use of empirically supported risk factors. Our aim was to investigate whether, in more recent cases, risk assessment instruments were cited by a forensic patient review board or by the clinicians who made recommendations to the board and whether there was evidence of an association between risk assessment results and either dispositions or recommendations. Among review board hearings held in 2009-2012 pertaining to 63 different maximum security patients found not criminally responsible on account of mental disorder in Ontario, Canada, dispositions were most strongly associated with psychiatrists' testimony, consistent with previous studies. However, dispositions were associated with the scores on the Violence Risk Appraisal Guide (VRAG), such that transferred patients had a lower risk of violent recidivism than detained patients. An association between clinical opinions and risk assessment results was also evident and significantly larger than in previous research. There was no evidence that risk assessment was cited selectively in higher risk cases or when scores were concordant with the review board decision. This research may provide a baseline for studies of the effect of 2014 legislation introducing a high-risk designation for forensic patients in Canada. We recommend further efforts to measure the effect of nonpharmacological treatment participation and in-hospital security decisions on forensic decision-making
    corecore