scholarly journals Forensic Behavioral Science of Serial and Mass Murder with an Addition of Leisure Research: A Descriptive Synthesis

2021 ◽  
Vol 1 (1) ◽  
pp. 16-24
Author(s):  
D J Williams

Prevalence rates of multiple homicide are statistically rare and vary across nations, yet such cases create substantial suffering for victims and can generate widespread fear among the general population. Despite extreme rarity, it remains important for forensic experts and professionals to be prepared when extremely violent events occur. This review summarizes contemporary behavioral science of serial and mass murder, then highlights the application of recent leisure research to add new motivational and behavioral insights. Research on the application of leisure science to homicide research is in its infancy, yet in conjunction with other related behavioral science disciplines, appears to hold promise in understanding, and perhaps helping to prevent, future violence.

Author(s):  
Süheyla Seker ◽  
Cyril Boonmann ◽  
Heike Gerger ◽  
Lena Jäggi ◽  
Delfine d’Huart ◽  
...  

AbstractWhile children and adolescents placed in child welfare or juvenile justice out-of-home care show higher prevalence rates of mental disorders compared to the general population, it remains unclear whether this pattern persists into adulthood. A quantitative synthesis of existing studies is lacking. The aim of this meta-analysis was to estimate the prevalence rates for mental disorders among adults with a foster or residential child welfare or juvenile justice care history, comparing them where possible to rates among the general population. PubMed, PsycInfo, EMBASE, and Web of Science were systematically searched for epidemiological studies published up to 28 October 2020. Nineteen studies, totaling 604,257 participants, met our inclusion criteria. Random-effects models were used for prevalence rates and odds ratios (OR) of mental disorders, and study quality was rated. A prevalence rate of 30% [95% CI (23.36, 37.36)] for any mental disorder in adults with a child welfare care history was found (3–17% for specific disorders). A prevalence rate of 45% [95% CI (42.38, 47.38)] for any mental disorder was found in adults with a juvenile justice care history (6–66% for specific disorders). For out-of-home placement history, adult mental disorders were significantly higher than in the general population (OR = 1.33–2.76). Studies differed in terms of methodology and the disorder groups considered, so heterogeneity between effect sizes ranged from low to high. Our findings suggest that the high risk that mental health issues will persist in adults with an out-of-home placement history needs to be taken seriously in the transition from adolescence to adulthood. The care systems involved need to collaborate and to be aware of these risks.


2021 ◽  
Author(s):  
Richard Z. Chen ◽  
Stephen X. Zhang ◽  
Wen Xu ◽  
Allen Yin ◽  
Rebecca Kechen Dong ◽  
...  

AbstractObjectiveThis paper systematically reviews and assesses the prevalence of anxiety, depression, and insomnia symptoms in the general population, frontline healthcare workers (HCWs), and adult students in Spain during the COVID-19 crisis.Data sourcesArticles in PubMed, Embase, Web of Science, PsycINFO, and medRxiv from March 2020 to February 6, 2021.ResultsThe pooled prevalence of anxiety symptoms in 23 studies comprising a total sample of 85,560 was 20% (95% CI: 15% - 25%, I2 = 99.9%), that of depression symptoms in 23 articles with a total sample comprising of 86,469 individuals was 23% (95% CI: 18% - 28%, I2 = 99.8%), and that of insomnia symptoms in 4 articles with a total sample of 915 were 52% (95% CI: 42-64%, I2 = 88.9%). The overall prevalence of mental illness symptoms in frontline HCWs, general population, and students in Spain are 42%, 19%, and 50%, respectively.DiscussionThe accumulative evidence from the meta-analysis reveals that adults in Spain suffered higher prevalence rates of mental illness symptoms during the COVID-19 crisis with a significantly higher rate relative to other countries such as China. Our synthesis reveals high heterogeneity, varying prevalence rates and a relative lack of studies in frontline and general HCWs in Spain, calling future research and interventions to pay attention to those gaps to help inform evidence-based mental health policymaking and practice in Spain during the continuing COVID-19 crisis. The high prevalence rates call for preventative and prioritization measures of the mental illness symptoms during the Covid-19 pandemic.


1990 ◽  
Vol 84 (7) ◽  
pp. 361-363
Author(s):  
K.M. Naeyaert ◽  
G. Grace

This article presents the findings of the most comprehensive Canadian survey on disabilities, the 1986 postcensus Health and Activity Limitation Survey, which analyzed data on blindness and visual impairment. An examination of vision loss and its prevalence in the general population by age group and within the disabled population uncovered some new variations in statistics on prevalence rates and some new information on age at onset, cause of vision loss, and the severity of visual impairment.


2020 ◽  
Vol 63 (1) ◽  
Author(s):  
Thomas Fovet ◽  
Laurent Plancke ◽  
Alina Amariei ◽  
Imane Benradia ◽  
Fanny Carton ◽  
...  

Abstract Background. The aim of the present study was to estimate prevalence rates of psychiatric and substance use disorders in male and female prisoners on admission to prison in the north of France and compare the frequency of these disorders to the general population. Methods. This cross-sectional survey on Mental Health in the Prison Population (MHPP), conducted between March 2014 and April 2017, interviewed 653 randomly selected men and women who had recently been committed to the French general population prison system in the Nord and Pas-de-Calais departments. For each subject, the Mini International Neuropsychiatric Interview (MINI), a standardized psychiatric interview, was used to screen for psychiatric and substance use disorders. The prevalence rates were then compared with data from the Mental Health in the General Population (MHGP) survey, a general population survey that used the same assessment methodology as MHPP in the Nord and Pas-de-Calais departments. A control sample was taken from the MHGP survey with a ratio of one case (MHPP) to three controls (MHGP) matching on age and sex. Results. The sample was primarily composed of French men, most of them single with low educational levels at the time of imprisonment. The mean age was 31.7 (standard deviation = 9.9; min = 18; max = 67). Most of the subjects included were first-time prisoners. The prevalence of affective disorders among newly incarcerated individuals was 31.2% with higher rates for major depressive disorder (27.2%). The prevalence of anxiety disorders was 44.4% with higher rates for generalized anxiety disorder (25.2%). The prevalence of psychotic syndromes was 6.9%. The prevalence of substance use disorders was 53.5% and a suicide risk was identified in 31.4% of the prisoners interviewed. Higher prevalence rates were found in the MHPP when compared with the MHGP for all psychiatric and substance use disorders assessed except for dysthymia and current isolated psychotic syndrome. Conclusions. Our study shows very high levels of prevalence for psychiatric and substance use disorders in recently committed French prisoners.


2020 ◽  
pp. 194589242094625 ◽  
Author(s):  
Vincent M. Desiato ◽  
Dylan A. Levy ◽  
Young Jae Byun ◽  
Shaun A. Nguyen ◽  
Zachary M. Soler ◽  
...  

Background Olfactory dysfunction (OD) is common and has been reported as an early indicator of COVID-19. However, the reported prevalence of OD in the general population varies widely depending upon the metric used to assess olfaction. Methodology/Principal: To perform a systematic review and meta-analysis of the prevalence of OD in the healthy general population, review the various assessment metrics used, and compare pooled OD prevalence rates. Results A total of 175,073 subjects were identified (mean age 63.5 years, range 18 to 101) with an overall OD prevalence of 22.2% (95% CI 14.8–30.6). OD prevalence was significantly greater using objective olfactory assessments, compared to subjective measures (28.8%, CI 20.3–38.2 versus 9.5%, CI 6.1–13.5, p < 0.001). The prevalence of OD was greater using expanded identification tests (>8 items) compared to brief test with ≤8 items (30.3%, CI 16.2–46.5 versus 21.2%, CI 12.3–31.8). Prevalence was higher in studies with a mean age greater than 55 years compared to those with a mean age of 55 years or less (34.5%, CI 23.4–46.5 versus 7.5%, CI 2.6–14.5, p < 0.001). Conclusions The reported prevalence of OD in the general population depends on the testing method and population age. OD prevalence was greater in studies using objective tests, expanded identification tests, and in those with older subjects.


2013 ◽  
Vol 28 (5) ◽  
pp. 302-307 ◽  
Author(s):  
W. Rössler ◽  
M.P. Hengartner ◽  
V. Ajdacic-Gross ◽  
H. Haker ◽  
J. Angst

AbstractBackground:Estimation of prevalence rates of sub-clinical psychosis symptoms can vary considerably depending on the methodology used. Furthermore, discussions are ongoing how prevalence rates may differ across various syndromes.Method:We analyzed data from the prospective Zurich Study, assessing sub-clinical psychosis with a semi-structured clinical interview in a community cohort of 50 years old individuals. The higher-order factors of psychosis symptoms were analyzed with confirmatory factor analysis to validate the a priori specified symptom-structure. Further associations were examined with contingency tables and logistic regressions.Results:The confirmatory factor analysis was consistent with a structure with four higher-order syndromes. Those different syndromes were labeled “thought disorder” (lifetime prevalence = 10.6%), “ego disorder” (4.8%), “hallucination” (9.7%), and “schizotypy” (28.2%). A strong discrepancy was noted between the 12-month prevalence of any symptoms and those considered to be severe. Twelve-month prevalence rates of distressful syndromes ranged from 0.1% for hallucinations up to 6.6% for schizotypy. The most strongly interrelated syndromes were thought disorder and ego disorder (OR = 12.4).Conclusion:Our findings indicate a continuity of sub-clinical psychosis within the general population even though only a small proportion suffers from distressing symptoms. Our analyses showed that the syndromes identified here are similar to those found in full-blown schizophrenia, albeit in an attenuated form.


2021 ◽  
Author(s):  
Supanat Thitipatarakorn ◽  
Tanat Chinbunchorn ◽  
Jitsupa Peelay ◽  
Pich Seekaew ◽  
Sorawit Amatavete ◽  
...  

Abstract Background Viral hepatitis is highly prevalent among people living with HIV (PLHIV) and can lead to chronic liver complications. Thailand started universal hepatitis B vaccination at birth in 1992. We explored prevalence rates of hepatitis B and C and associated factors among PLHIV from same-day antiretroviral therapy (SDART) service at the Thai Red Cross Anonymous Clinic, Bangkok, Thailand. Methods We collected baseline characteristics from PLHIV enrolled in the SDART service between July 2017 and November 2019. Multivariate logistic regression was carried out to determine factors associated with positive hepatitis B surface antigen (HBsAg) and hepatitis C antibody (anti-HCV). Results We included a total of 4,011 newly diagnosed PLHIV who had HBsAg or anti-HCV results at baseline. Included were 2,941 men who have sex with men (MSM; 73.3%), 851 general population (21.2%), 215 transgender women (TGW; 5.4%), and 4 transgender men (0.1%). Median age was 27 years. Overall seroprevalence of HBsAg and anti-HCV were 6.0% and 4.1%, respectively. Subgroup prevalence rates were 6.2% and 4.7% among MSM, 4.6% and 2.4% among general population, and 9.3% and 3.7% among TGW. Factors associated with HBsAg positivity were being MSM (adjusted odds ratio [aOR] 1.64, 95% confidence interval [CI] 1.13 to 2.40), being TGW (aOR 2.87, 95% CI 1.60 to 5.17), birth year before 1992 (aOR 2.32, 95% CI 1.69 to 3.16), CD4 count < 200 cells/mm3 (aOR 1.38, 95% CI 1.03, 1.86), and alanine aminotransferase ≥ 62.5 U/L (aOR 2.39, 95% CI 1.66 to 3.43). Factors associated with anti-HCV positivity were being MSM (aOR 2.11, 95% CI 1.26 to 3.55), age > 30 years (aOR 1.54, 95% CI 1.10 to 2.17), alanine aminotransferase ≥ 62.5 U/L (aOR 7.74, 95% CI 5.48 to 10.9), creatinine clearance < 60 ml/min (aOR 5.58, 95% CI 1.95 to 16.0), and having syphilis (aOR 1.95, 95% CI 1.36 to 2.78). Conclusions Around 5–10% of newly diagnosed PLHIV in Bangkok had hepatitis B infection after 25 years of universal vaccination. Anti-HCV positivity was found in 4–5% of PLHIV who were MSM and TGW. Every PLHIV should be routinely tested for hepatitis B and C and immediately linked to appropriate prevention and treatment interventions.


1998 ◽  
Vol 23 ◽  
pp. 407-455 ◽  
Author(s):  
James Alan Fox ◽  
Jack Levin

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