Sex and ethnic differences in past aggressive behaviors

To investigate gender and ethnic differences in experiences of violence, 415 Black and White males and females were asked about some of their aggressive behaviors in the past. In their most aggressive encounters, males were more likely than females to have received and instigated physical violence and females to have experienced violence in a sexual context; same-sex aggression was more common than cross-sex violence. More males than females had urged or screamed at others to be more aggressive, with males more likely to incite other males and females to urge other females to be aggressive. Males were more likely than females to have last been angry with a male, and a number of sex differences were found in the behaviors exhibited when last angry. Although positive consequences of aggression did not differ significantly by sex, females were more likely to have experienced negative interpersonal effects of behaving aggressively and males to have suffered physical harm or legal troubles. Relatively few differences between Black and White subjects were found, but Black males were more likely than Whites to keep their anger to themselves and to get the target in trouble; White males were more likely to yell at the target and tell the target of their anger. White females were more likely than Blacks to get the target in trouble. In general, the results are consistent with sex role stereotypes and suggest that the experiences of aggression and responses to anger may be substantially different for males and females.     

Third molar development in a London population of White British and Black British or other Black ethnicity

Population differences in dental development between Black and White ethnic groups have been debated but not previously studied in the UK. Using inappropriate data for dental age estimation (DAE) could lead to erroneous results and injustice. Data were collected from dental panoramic radiographs of 5590 subjects aged 6–24 years in a teaching hospital archive. Demirjian stages were determined for left-sided teeth and third molars and data collected regarding hypodontia and third molar agenesis. Third molar development in self-assigned Black British, including other self-assigned Black ethnicity, was compared with that of self-assigned White British subjects. Data were compared for males and females in the two ethnic groups using T-tests for Demirjian Stages A–G of third molar development and Mann-Whitney tests for Stage H once a cut-off age at the maximum age for Stage G had been imposed. Third molar development occurred earlier in subjects of Black ancestry compared to those of White ancestry. While both ethnic groups showed large age ranges for every third molar stage, in female subjects these generally occurred at least 1.5 years earlier, and in males at least one year earlier. Hypodontia and third molar agenesis were more prevalent in White British, but the ethnic difference in third molar development persisted in subjects with complete dentitions. This is a large study that confirms ethnic differences in a London population, emphasises the difficulties of establishing the 18-year-old threshold using DAE, and confirms the risk of overestimating the age of individuals of Black ethnicity using White ethnic reference data.     

Estimating sex of the human skeleton based on metrics of the sternum

Estimating the sex of skeletal remains is critical in creating the biological profile of an adult individual. Previous research has shown that analyzing the sternum may lead to an accurate estimation of sex based on studies performed on various populations around the globe, such as Indian, European, African, Canadian and North American. The motivation of the current study is to develop classification functions and sectioning points for use in forensic investigations in the United States. The majority of previously published methods are population specific, meaning the data would not prove useful in the United States. For this study, sternal measurements were collected from the William M. Bass Donated Skeletal Collection located at The University of Tennessee, Knoxville following the metric definitions provided by Schwartz and Bass. This collection consists of recent skeletal remains with known age at death, ancestry and sex. Material for the present study consisted of 410 human sterna: 285 male (256 American White/29 American Black) and 125 female (120 American White/5 American Black). Previous studies analyze the applicability of Hyrtl's law in the estimation of sex. This law follows that the mesosternum is greater than twice the length of the manubrium in males and in females the length of the manubrium is greater than half the length of the mesosternum. In this study, comparisons of the proportion of the length of the manubrium to the length of the mesosternum were performed to determine if Hrytl's law is applicable in an American population. Comparisons of these measurements between individuals identified as American Black and American White were analyzed to determine whether this method could be used on both population groups. Further, discriminant function analysis was used to estimate sex and provide a population specific classification function for use in the United States. The discriminate function analysis produced an overall cross-validation classification rate of 84.12% for sex estimation. The cross-validation classification rate for males and females was 80.00% and 88.24%, respectively.     

Suicide on Death Row

Despite the level of supervision of inmates on death row, their suicide rate is higher than both the male prison population in the United States and the population of males over the age of 14 in free society. This study presents suicide data for death row inmates from 1978 through 2010. For the years 1978 through 2010, suicide rates on death row were higher than that for the general population of males over the age of 15 and for state prisons for all but 2 years.     

The effect of race and gender on bail outcomes: A test of an interactive model

This paper responds to suggestions that researchers interested in the relationship between defendant race, defendant gender, and criminal justice outcomes broaden their focus to include pretrial decision making. We used data on defendants charged with violent felonies in Detroit Recorder’s Court to analyze the effect of race and gender on the amount of bail imposed by the judge and on the defendant’s pretrial status. We found that judges take gender, but not race, into account in determining the amount of bail for certain types of cases; more specifically, Black females faced lower bail than Black males in less serious cases. In contrast, we found that both race and gender affected the likelihood of pretrial release. White defendants were more likely than black defendants to be released pending trial and females were more likely than males to be released prior to trial. In fact, white females, white males, and black females all were more likely than black males to be released. An earlier version of this mansucript was presented at the annual meeting of the American Society of Criminology, Phoenix, AZ, October, 1993.     

Female suicides in Diyarbakir, Turkey

The aim of this study was to investigate the methods used and demographic data of women suicides by examining postmortem investigation and autopsy reports from the Branch of the Council of Forensic Medicine in Diyarbakir Province, Turkey, between 1996 and 2001. Fifty-eight percent (174/302) of suicides were females and 42% (128/302) were males. The suicide rates were similarly higher for females than for males (2.6 and 1.8 per 10,000 population, respectively). Over half of female suicides (56.3%) occurred in those under 20 years of age. The most common suicide method for women was hanging (32.2%), and for men was firearms (51.7%), but for women younger than 20 years the most frequent method was firearms. Among the female suicides, five (2.8%) were known to have attempted suicide at least once in the past. Twenty-nine women (16.7%) were documented to have any psychiatric illness. None of the women had a history of drug or alcohol abuse. A suicide note was found in only six cases (3.4%). The predominant suicide motive was family problems (in 32% or 56/174). The higher rate of suicide in females than in males, and the absolute female predominance in suicides in Diyarbakir, Turkey, are in contrast to most of the medical literature and statistical information about suicide rates by country, in which suicide rates are usually higher among males.     

Schizophrenia and suicide: a 10-year review of Kentucky medical examiner cases

The risk of suicide is significantly increased in schizophrenics; it is estimated that 10-13% of individuals suffering from schizophrenia commit suicide. Schizophrenia is marked by psychotic exacerbations and remissions, with persistent deterioration in baseline functioning with each relapse. We present a 10-year (1993-2002) retrospective review of Medical Examiners' cases of suicide of schizophrenic victims. Twenty-nine cases were between the ages of 20 and 75 (mean age of 41.6 years). The majority of victims were male (62.1%) and Caucasian (86.2%). The leading method of suicide for both males and females was firearm injury (48.3%) mostly of the head, followed by overdose (20.7%), and hanging (13.8%). A comprehensive investigation of the biopsychosocial factors is warranted in cases of schizophrenics who commit suicide. This study offers an insightful analysis pertaining to the determination of intent in formulating the manner of death in this unique population.     

Victimization, Parenting, and Externalizing Behavior Among Latino and White Adolescents

Given the large number of adolescents who have externalizing behavior problems and the increasing ethnic heterogeneity in many societies, it is important to examine whether the mechanisms underlying externalizing behavior are different among diverse groups. We specified separate models for ethnic groups and tested whether gender moderated the effect of victimization experiences and parent–child characteristics on externalizing behavior. The sample included 167 Latino and 625 White adolescents ages 10–17. For Latino adolescents, parental physical assault was related to more externalizing behavior for males and for females. More parental conflict and more criticism were related to less externalizing behavior for Latino females but not for Latino males. For White adolescents, all types of victimization (by parents, by siblings, by peers, witnessing domestic assault) and more parental conflict were related to more externalizing for males and for females. More monitoring was related to less externalizing behavior for White males but not for White females or for Latino adolescents. The intersection of ethnicity and gender may be important when examining adolescents’ externalizing behavior.     

The Joint Effects of Gender and Race/Ethnicity on Sentencing Outcomes in Federal Courts

Using data from the U.S. Sentencing Commission, the present study examines the interaction effects of gender and race/ethnicity on sentencing outcomes of male and female offenders in federal courts. Findings indicate that female offenders in all racial/ethnic categories receive less severe sentence outcomes than male offenders in the same categories, even after legal, extralegal, and contextual factors are controlled. In addition, racial/ethnic differences are found within gender groups, such that Hispanic males are more likely to be incarcerated and Black males receive longer sentence terms compared to White male offenders. However, contrary to expectations, the analysis indicates that White females are more likely to be incarcerated than Black and Hispanic females and receive longer sentence terms than Hispanic females. Gender and racial/ethnic interactions are also explored across offense type (drug vs. non-drug) and type of sentencing departure (no departure, downward, or substantial assistance). Implications for future research are also discussed.     

Age and sex related measurement of craniofacial soft tissue thickness and nasal profile in the Chinese population

The purpose of this study was to acquire accurate data of craniofacial soft tissue thickness (CFSTT) and nasal profile in Chinese people of Han population. A total of 31 anatomical landmarks and 4 nasal profile parameters were determined using magnetic resonance imaging (MRI) in 425 subjects (233 males and 192 females). In the present study, the mean CFSTT values of male subjects exceeded those of female subjects at most anatomical landmarks except at seven (22.58%) and 6 out of the 7 landmarks were bilateral anatomical landmark points. The age-related and sex × age interactions were found to be statistically significant at all landmarks. Significant differences were found in the nasal profile data of males and females, and 15 out of 20 different groups had significant differences between sexes, and the mean values of nasal length, nasal height, nasal depth and nasal breadth in males were all greater than those in females. Furthermore, both CFSTT and nasal profile showed good correlation with age. The thickest CFSTT of male and female were found at the respective ages of 45-59 and 35-44, and the nasal profile becomes more constant after 24 years of age. CFSTT of the lower part of the face shows greater variation compared to the upper part, so special care needs to be applied when reconstructing the lower portion of the face. Our data on CFSTT and nasal profile for the Chinese Xi'an Han population is important in understanding craniofacial characteristics of the Chinese population and might be potentially helpful in forensic identification.     

Sex differences in the likelihood of arrest

Using data from the new National Incident-Based Reporting System (NIBRS), this study analyzed the impact of a criminal offender's sex on the likelihood of arrest for 555,752 incidents of kidnapping, forcible rape, forcible fondling, robbery, aggravated assault, simple assault, and intimidation in nineteen states and the District of Columbia during 2000. The data used in this study advanced the literature by enabling the authors to determine the likelihood of arrest for males and females based on sex-specific offending as reported by crime victims. Controlling for offense seriousness and a variety of other factors, logistic regression results showed that the probability of arrest for females was 28 percent lower for kidnapping, 48 percent lower for forcible fondling, 9 percent lower for simple assault, and 27 percent lower for intimidation than for males. A supplemental analysis also revealed that Black females had a higher probability of arrest than did White females for aggravated and simple assault. No discernable impact of an offender's sex on the prospect of arrest was noted for the crimes of forcible rape and robbery. Overall, these findings suggest that the lower arrest rate for females is partly the result of leniency shown women by law enforcement personnel.     

Suicidal Decapitation by Hanging—A Population‐based Study

A prospective study was undertaken at Forensic Science SA over a 15‐year period from July 2002 to June 2017 for all cases of adult (>18 years) suicidal hangings with decapitation. A total of 1446 cases of suicidal hangings were identified from a general population of approximately 1.5 million (1206 males—age range 18–97 years, average 42.6; and 240 females—age range 18–96 years, average 40.1). Only three cases of decapitation were found, all from long‐drop hangings; these consisted of three males (ages 32–55 years; average 45 years). Spinal transections had occurred between the first and second, second and third, and third and fourth cervical vertebrae, respectively. In this study, the number of suicidal hangings with decapitation represented only 0.2% of the total number of hangings. These events are therefore extremely rare, most likely due to most suicidal hangings occurring from relatively low levels in a domestic environment.     

Radiographic survey of third molar development in relation to chronological age among Japanese juveniles

The aim of the present study was to establish Japanese reference material on the third molar development of Japanese juveniles for forensic application. Observations were performed on the orthopantomograms of 1282 Japanese patients between the ages of 14.0 and 24.0 years. Demirjian formation stages of the maxillary and mandibular third molars were recorded for chronological evaluation of wisdom teeth and applied for further statistical analysis. Statistically significant differences were noted between the upper and lower jaws and genders. Accordingly, males achieved root developmental grades earlier than females. We assessed the mean ages for all formation grades and predicted the probability that a Japanese juvenile would be older than the relevant ages of 14, 16, and 20 as defined by Japanese Juvenile Law. We determined the likelihood that a Japanese youth is older than the relevant age of 18 as defined by legislation in the United States.     

The suicide mortality rates between 1997-1998 and 2000-2001 in Nantou County of Taiwan following the earthquake of September 21 in 1999.

The paper aims to show the different suicide mortality rate between 1997-1998 and 2000-2001 in Nantou County of Taiwan with earthquake on September 21 (often referred to as the "9-21 earthquake") in 1999. In additional, it also identifies the preventive strategies for the high-risk suicide population. The age-standardized mortality rates for suicide in Nantou County were calculated for the years 1997-1998 and 2000-2001. The suicide standardized mortality ratio (SMR for townships in Nantou were calculated by "type of township" as the standard rate). There is a statistically significant difference in male suicide rates for the years prior to the earthquake (1997-1998) when pooled and compared to the suicide rates for the years after the earthquake (2000-2001). The rate for four age groups (under 25, 25-44, 45-64, 65 and above) all increased, yet all but one (the group of age 45-64) was not statistically significant. The male SMR has slightly increased after the 9-21 earthquake. Yet there are no statistical significances in most townships, except in Kaohsiung and Puli after the 9-21 earthquake. The Kaohsiung SMRs were 1.36 (95% CI: 0.54-2.80) before the earthquake (1997-1998) and 2.01 (95% CI: 1.04-3.52) after the earthquake (2000-2001). The SMRs before and after the earthquake in the Puli Township were 1.51 (95% CI: 0.95-2.29) to 1.56 (95% CI: 1.03-2.27). This study suggests that monitoring high-risk population, especially males or 45-64 years of age who experienced the highest statistically significant suicide rate in this study. The study provides support for providing both the psychological restoration program and, to the extent feasible, financial support for the unemployed as useful public health strategies for suicide prevention in Taiwan.     

Child and adolescent suicide in a large, urban area: psychological, demographic, and situational factors.

We examined all completed suicides by children and adolescents in Los Angeles County who died during 1996 and 1997. There were 46 subjects, aged 11 through 16. The majority of the decedents were males and over age 14. The predominant racial group was Hispanic. There was an almost even split between firearms and hanging as the means of death. Females had a statistically significantly higher rate of prior suicide attempts than males. Over one-third left a suicide note, almost one-half were noted to be depressed, and 22% tested positive for alcohol or illicit drugs. Less than one-quarter were in mental health treatment. Eighty-seven percent had difficulty transitioning to or during adolescence; e.g., problems at home, legal and school difficulties, and relationship losses. These findings are discussed in terms of Eriksonian developmental theory. We offer recommendations for intervention and prevention of suicide.     

Epidemiological characteristics of male sexual assault in a criminological database

Sexual assault among males, compared with females, is understudied, and may also be significantly underreported. Past studies have relied primarily on population-based survey data to estimate the prevalence of sexual assault and associated health outcomes. However, survey-based studies rely primarily on self-reports of victimization and may not accurately estimate the true prevalence of male sexual assault victimization. In order to obtain a detailed assessment of sexual assault among males, criminological databases like the National Incident Based Reporting System (NIBRS) may provide an important and unique source of information. The objective of the current study was to use data from the 2001-2005 NIBRS to construct an epidemiological profile of sexual assault among males. Our results suggest that the incidence of sexual assault was higher among young males (less than 19 years of age), with approximately 90% of all cases being reported among members of this age group. Among males of all ages, forcible fondling and sodomy were the most prevalent forms of sexual assault. Results from additional analyses include age- and race-specific rates of male sexual assault, the prevalence and severity of injury, and time trends detailing incidence by time of the day and location of the incident. Our analyses show that sexual assault is experienced by males of all age groups. However, the rate of sexual assault is higher among younger males. Despite some limitations, results from this study suggest that NIBRS data may provide a important complement to survey data for understanding breadth and consequences of male sexual assault.     

The Suicide Mortality Rates between 1997–1998 and 2000–2001 in Nantou County of Taiwan Following the Earthquake of September 21 in 1999

Abstract:  The paper aims to show the different suicide mortality rate between 1997–1998 and 2000–2001 in Nantou County of Taiwan with earthquake on September 21 (often referred to as the "9-21 earthquake") in 1999. In additional, it also identifies the preventive strategies for the high-risk suicide population. The age-standardized mortality rates for suicide in Nantou County were calculated for the years 1997–1998 and 2000–2001. The suicide standardized mortality ratio (SMR for townships in Nantou were calculated by "type of township" as the standard rate). There is a statistically significant difference in male suicide rates for the years prior to the earthquake (1997–1998) when pooled and compared to the suicide rates for the years after the earthquake (2000–2001). The rate for four age groups (under 25, 25–44, 45–64, 65 and above) all increased, yet all but one (the group of age 45–64) was not statistically significant. The male SMR has slightly increased after the 9-21 earthquake. Yet there are no statistical significances in most townships, except in Kaohsiung and Puli after the 9-21 earthquake. The Kaohsiung SMRs were 1.36 (95% CI: 0.54–2.80) before the earthquake (1997–1998) and 2.01 (95% CI: 1.04–3.52) after the earthquake (2000–2001). The SMRs before and after the earthquake in the Puli Township were 1.51 (95% CI: 0.95–2.29) to 1.56 (95% CI: 1.03–2.27). This study suggests that monitoring high-risk population, especially males or 45–64 years of age who experienced the highest statistically significant suicide rate in this study. The study provides support for providing both the psychological restoration program and, to the extent feasible, financial support for the unemployed as useful public health strategies for suicide prevention in Taiwan.     

Influences on Detention Decisions in the Juvenile Justice System

This paper examines the pretrial detention of juveniles in County X located in a northeastern state. The sample (N=642) included Black, White, and Hispanic males and females adjudicated delinquent in the summer of 2000. The following independent variables were analyzed with respect to the dependent variable of pretrial detention: age, sex, address, race, current offense (misdemeanors, violent misdemeanors, felonies, violent felonies, and probation violations), prior offense (misdemeanors, violent misdemeanors, felonies, and violent felonies), and previous dispositions (community or placement). Several variables were found to be significant in increasing the odds of pretrial detention: probation violations, prior misdemeanors, prior residential placements, prior community interventions, age, sex, urban address, felonies, prior violent misdemeanors, and prior violent felonies. It was expected that minority youths would be more likely to be detained, but race was only significant in the absence of the variable of address. Urban youths were more likely to be detained resulting in an over‐representation of minorities in detention, since most of the minority population resides in the urban area. Also included is supplemental material based on interviews with defense lawyers, judges, masters, and juvenile probation officers.     

Application of the Optimized Summed Scored Attributes Method to Sex Estimation in Asian Crania

The optimized summed scored attributes (OSSA) method was recently introduced and validated for nonmetric ancestry estimation between American Black and White individuals. The method proceeds by scoring, dichotomizing, and subsequently summing ordinal morphoscopic trait scores to maximize between‐group differences. This study tests the applicability of the OSSA method for sex estimation using five cranial traits given the methodological similarities between classifying sex and ancestry. A large sample of documented crania from Japan and Thailand (n = 744 males, 320 females) are used to develop a heuristically selected OSSA sectioning point of ≤1 separating males and females. This sectioning point is validated using a holdout sample of Japanese, Thai, and Filipino (n = 178 males, 82 females) individuals. The results indicate a general correct classification rate of 82% using all five traits, and 81% when excluding the mental eminence. Designating an OSSA score of 2 as indeterminate is recommended.     

Toxicology and Circumstances of Completed Suicide by Means Other than Overdose*

Abstract: To determine the prevalence and circumstances of psychoactive substances amongst nonoverdose completed suicide, 1436 consecutive cases autopsied at the NSW Department of Forensic Medicine over the period 1/1/1997–12/31/2006 were analyzed. Substances were detected in 67.2% of cases, and illicit drugs in 20.1%. Alcohol was present in 40.6% of cases. Males were more likely to be positive for alcohol, cannabis, and psychostimulants, and females for pharmaceuticals. Illicits were associated with younger age. Alcohol was most prominent amongst toxicity cases, as were opioids, psychostimulants amongst gunshot cases, and pharmaceuticals amongst drownings. Cases in which drug and alcohol histories were noted were more likely to have a substance detected. Alcohol was more common where a suicide note was left and where relationship problems were involved. Pharmaceuticals were more common where a previous attempt was noted. Licit and illicit substances are strongly associated with suicide, even when the method does not involve drug overdose.