Spatial spillovers of violent conflict amplify the impacts of climate variability on malaria risk in sub-Saharan Africa.

Africa carries a disproportionately high share of the global malaria burden, accounting for 94% of malaria cases and deaths worldwide in 2019. It is also a politically unstable region and the most vulnerable continent to climate change in recent decades. Knowledge about the modifying impacts of violent conflict on climate-malaria relationships remains limited. Here, we quantify the associations between violent conflict, climate variability, and malaria risk in sub-Saharan Africa using health surveys from 128,326 individuals, historical climate data, and 17,429 recorded violent conflicts from 2006 to 2017. We observe that spatial spillovers of violent conflict (SSVCs) have spatially distant effects on malaria risk. Malaria risk induced by SSVCs within 50 to 100 km from the households gradually increases from 0.1% (not significant, P>0.05) to 6.5% (95% CI: 0 to 13.0%). SSVCs significantly promote malaria risk within the average 20.1 to 26.9 °C range. At the 12-mo mean temperature of 22.5 °C, conflict deaths have the largest impact on malaria risk, with an approximately 5.8% increase (95% CI: 1.0 to 11.0%). Additionally, a pronounced association between SSVCs and malaria risk exists in the regions with 9.2 wet days per month. The results reveal that SSVCs increase population exposure to harsh environments, amplifying the effect of warm temperature and persistent precipitation on malaria transmission. Violent conflict therefore poses a substantial barrier to mosquito control and malaria elimination efforts in sub-Saharan Africa. Our findings support effective targeting of treatment programs and vector control activities in conflict-affected regions with a high malaria risk.

Neuroimmune mechanisms connecting violence with internalizing symptoms: A high-dimensional multimodal mediation analysis.

Violence exposure is associated with worsening anxiety and depression symptoms among adolescents. Mechanistically, social defeat stress models in mice indicate that violence increases peripherally derived macrophages in threat appraisal regions of the brain, which have been causally linked to anxious behavior. In the present study, we investigate if there is a path connecting violence exposure with internalizing symptom severity through peripheral inflammation and amygdala connectivity. Two hundred and thirty-three adolescents, ages 12-15, from the Chicago area completed clinical assessments, immune assays and neuroimaging. A high-dimensional multimodal mediation model was fit, using violence exposure as the predictor, 12 immune variables as the first set of mediators and 288 amygdala connectivity variables as the second set, and internalizing symptoms as the primary outcome measure. 56.2% of the sample had been exposed to violence in their lifetime. Amygdala-hippocampus connectivity mediated the association between violence exposure and internalizing symptoms ( ζ ̂ Hipp π ̂ Hipp = 0.059 $$ {\hat{\zeta}}_{\mathrm{Hipp}}{\hat{\pi}}_{\mathrm{Hipp}}=0.059 $$ , 95 % CI boot = 0.009,0.134 $$ 95\%{\mathrm{CI}}_{\mathrm{boot}}=\left[\mathrm{0.009,0.134}\right] $$ ). There was no evidence that inflammation or inflammation and amygdala connectivity in tandem mediated the association. Considering the amygdala and the hippocampus work together to encode, consolidate, and retrieve contextual fear memories, violence exposure may be associated with greater connectivity between the amygdala and the hippocampus because it could be adaptive for the amygdala and the hippocampus to be in greater communication following violence exposure to facilitate evaluation of contextual threat cues. Therefore, chronic elevations of amygdala-hippocampal connectivity may indicate persistent vigilance that leads to internalizing symptoms.

Sleep Problems Among Black Youth Exposed to Police Violence on Digital Media.

Findings from a recent survey of a community-based sample of Black youth ages 12 through 21 in Baltimore City, Maryland (n = 345) reveal that viewing fatal police violence videos is associated with significant increases in the odds of youth sleep disturbances, and about 30% of this association is attributable to emotional distress after viewing the videos.

Elevations in Blood Pressure Associated with Exposure to Violence are Mitigated by Pro-gun-Carrying Attitudes among Street-Identified Black Males and Females.

Living in neighborhoods with elevated rates of violent crime, such as in many poor Black American communities, is a risk factor for a range of physical and mental health challenges. However, the individual different factors that influence health outcomes in these stressful environments remain poorly understood. This study examined relations between exposure to violence, gun-carrying attitudes, and blood pressure in a community sample of street-identified Black American boys/men and girls/women. Survey data and blood pressure were collected from 329 participants (ages 16-54; 57.1% male) recruited from two small urban neighborhoods with high rates of violence using street participatory action research methodology. Results revealed that systolic blood pressure was elevated in the sample as was exposure to severe forms of direct and vicarious violence (e.g., shootings, assault). Attitudes about carrying guns moderated associations between the degree of violence exposure endorsed by participants and both systolic and diastolic blood pressure. Specifically, the positive association between exposure to violence and both systolic and diastolic blood pressure at low levels of pro-gun-carrying attitudes was no longer apparent at high levels of pro-gun attitudes. Furthermore, pro-gun attitudes appeared to moderate the association between exposure to violence and systolic pressure for older participants but not younger participants. Results suggest that positive attitudes about carrying guns (presumably indicative of pro-gun-carrying behavior) weakened the link between violence exposure and blood pressure. These novel findings suggest that carrying a gun may protect against the harmful effects of chronic stress from violence exposure on physical health outcomes (i.e., hypertension) among street-identified Black Americans.

Cash Transfers and After-School Programs: A Randomized Controlled Trial for Young Men at Risk of Violence Exposure in Wilmington, Delaware.

We conducted a randomized controlled trial to determine whether an after-school program paired with a cash transfer (a conditional cash transfer) or a cash transfer alone (an unconditional cash transfer) can help improve health and economic outcomes for young men between the ages of 14 and 17 whose parents have low incomes and who live in neighborhoods with high crime rates. We find that receiving the cash transfer alone was associated with an increase in healthy behaviors (one of our primary outcome composite measures) and that the cash transfer paired with after-school programming was associated with an improvement in the financial health of participants (one of our secondary outcome composite measures). We find no differences in spending on alcohol, marijuana, cigarettes, or other drugs between either the treatment group and the control group. Neither the cash transfer alone nor the programming plus cash transfer had statistically significant effects on our other primary composite measures (physical and mental health or school attendance and disciplinary actions), or our other secondary composite measures (criminal justice engagement or social supports) but in most cases, confidence intervals were too large to rule out meaningful effects. Results suggest that cash transfers hold promise to improve the health of youth without any indication of any adverse effects.

Firearm Violence Exposure and Functional Disability among Black Men and Women in the United States.

This study investigates the relationship between firearm violence exposure and functional health among Black adults in the United States (US). We examined associations between different forms of firearm violence exposure (direct, indirect, and community) and functional health with particular attention to differences across sex groups. We used survey data from a nationally representative sample of 3015 Black adult Americans to analyze associations between types of firearm violence exposure and four aspects of functional disability including: the ability to concentrate, walk/use stairs, dress/bathe, and run errands among males and females. The findings indicate notable disparities in exposure and health outcomes based on the exposure type and cumulative exposure to violence. Among males, functional disability was associated most closely with community violence exposure, while direct threats of firearm violence were most consequential for functional health among females. High cumulative exposure to firearm violence was linked to significant risks to functional health, particularly among females. The results shed light on sex differences in the repercussions of firearm violence exposure and emphasize its implications for daily functioning and health. This study contributes to the understanding of the multifaceted impacts of firearm violence on functional well-being and highlights the need for inclusive and culturally sensitive healing approaches based in community settings. There is a critical need for heightened awareness and strategies to enhance the well-being of those disproportionately affected by firearm violence in the US.

Associations between experiencing violence, owning a firearm for protection and firearm storage: a nationally representative analysis of US caregivers of teens.

OBJECTIVE: To study the interaction between violence exposure and motivations for firearm ownership in their associations with firearm storage among caregivers of teens in the United States. METHODS: In June-July 2020, we conducted a national survey of 2924 caregivers of US teens. We estimated multivariable logistic regressions among caregivers who owned a firearm (n=1095) to evaluate associations between the exposures of community violence, interpersonal violence, and firearm ownership motivations (protection motivations vs non-protection motivations) and the outcome of firearm storage patterns (locked and unloaded vs unlocked and/or loaded). We assessed for a potential interaction between violence exposures and motivations for firearm ownership in their associations with firearm storage. RESULTS: We observed no associations between community (adjusted OR [aOR]: 0.86; 95% CI [0.55 to 1.36]) or interpersonal violence exposure (aOR: 0.60; 95% CI [0.22 to 1.65]) and firearm storage behaviours, and these associations did not vary according to firearm ownership motivations (relative excess risk due to interaction: -0.09 [-1.90 to 1.73]; -2.04 [-6.00 to 1.92]). Owning a firearm for protection was associated with increased odds of storing at least one firearm unlocked and/or loaded (aOR: 3.48; 95% CI [2.11 to 5.75]), and this association persisted across all strata of violence exposures (aORs: 1.51-3.98; 95% CIs [0.52 to 8.31]-[1.96 to 8.08]). CONCLUSIONS: The motivation to own a firearm for protection was associated with storing a firearm unlocked and/or loaded. The results suggest the associations between violence exposure and firearm storage are more complicated than anticipated because (1) exposure to violence was not associated with firearm storage practices and (2) motivations for firearm ownership do not appear to explain why people differ in firearm storage following violence exposure.

Highly public anti-Black violence is associated with poor mental health days for Black Americans.

Highly public anti-Black violence in the United States may cause widely experienced distress for Black Americans. This study identifies 49 publicized incidents of racial violence and quantifies national interest based on Google searches; incidents include police killings of Black individuals, decisions not to indict or convict the officer involved, and hate crime murders. Weekly time series of population mental health are produced for 2012 through 2017 using two sources: 1) Google Trends as national search volume for psychological distress terms and 2) the Behavioral Risk Factor Surveillance System (BRFSS) as average poor mental health days in the past 30 d among Black respondents (mean weekly sample size of 696). Autoregressive moving average (ARMA) models accounted for autocorrelation, monthly unemployment, season and year effects, 52-wk lags, news-related searches for suicide (for Google Trends), and depression prevalence and percent female (for BRFSS). National search interest varied more than 100-fold between racial violence incidents. Black BRFSS respondents reported 0.26 more poor mental health days during weeks with two or more racial incidents relative to none, and 0.13 more days with each log10 increase in national interest. Estimates were robust to sensitivity tests, including controlling for monthly number of Black homicide victims and weekly search interest in riots. As expected, racial incidents did not predict average poor mental health days among White BRFSS respondents. Results with national psychological distress from Google Trends were mixed but generally unsupportive of hypotheses. Reducing anti-Black violence may benefit Black Americans' mental health nationally.

Adolescent civic engagement: Lessons from Black Lives Matter.

In 2020, individuals of all ages engaged in demonstrations condemning police brutality and supporting the Black Lives Matter (BLM) movement. Research that used parent reports and trends commented on in popular media suggested that adolescents under 18 had become increasingly involved in this movement. In the first large-scale quantitative survey of adolescents' exposure to BLM demonstrations, 4,970 youth (meanage = 12.88 y) across the United States highlighted that they were highly engaged, particularly with media, and experienced positive emotions when exposed to the BLM movement. In addition to reporting strong engagement and positive emotions related to BLM demonstrations, Black adolescents in particular reported higher negative emotions when engaging with different types of media and more exposure to violence during in-person BLM demonstrations. Appreciating youth civic engagement, while also providing support for processing complex experiences and feelings, is important for the health and welfare of young people and society.

Understanding adverse childhood experiences and the call for trauma-informed healthcare system in Turkey: a review.

Over the past four decades, research has underscored the significance of approaching and preventing trauma from a systemic standpoint. Trauma-informed care (TIC) methodologies offer a structure for healthcare practices, striving to convert organizations into trauma-informed systems that employ trauma-specific interventions. This review employs epidemiological and household data from Turkey to underscore the importance of integrating trauma-informed care as a means of prevention and intervention. Through a desk review, the study examines the role of adverse childhood experiences (ACEs), delving into their origin from family dynamics, migration, violence, exposure to violence, juvenile delinquency, and child maltreatment. The research highlights innovative healthcare approaches that leverage data to address complex patient health issues while considering mental health needs. In contemporary times, healthcare organizations acknowledge the value of a data-driven approach to make informed clinical decisions, enhance treatment procedures, and improve overall healthcare outcomes. The reviewed research and empirical data furnish proof of the importance of effective and efficient treatment methods that prioritize trauma prevention and treatment, integrating the role of ACEs. This paper seeks to contribute to discussions on transforming the healthcare system to meet the healthcare needs of Turkish households, all the while taking into account the evolving sociopolitical factors that shape Turkey's population characteristics.

Adolescents' exposure to community violence and associations with after-school activities across two samples.

INTRODUCTION: Exposure to community violence (ECV) continues to be a major public health problem among urban adolescents in the United States. We sought to identify subgroups of adolescents' ECV and examine how after-school activities are related to exposure subgroups across two samples. METHODS: In Study 1 there were 1432 adolescents (Cohort 9 n = 717, Mage = 11, and Cohort 12 n = 715, Mage = 14; 52% boys) from the Project on Human Development in Chicago Neighborhoods (1994-2002). Study 2 had a more recent sample of 537 adolescents (Mage = 16 years; 54% girls) from the After-School Activity Study (ASAS; 2015-2017) in Chicago and Detroit. RESULTS: Exploratory latent class analyses yielded a three-class solution for Study 1: a "No ECV" class (44%); a "Low ECV" class (36%); and a "High Exposure" class (14%). In Study 2, a four-class solution was the best fit with a "No ECV" class (33%), a "Moderate Witness/Low Victim" class (36%), a "High Witness/Moderate Victim" class (19%), and a "High ECV" class (11%). Home-based activities appeared to be protective against high ECV for adolescents in Study 2. School-based activities were associated with higher ECV across both samples, but community-based activities were only associated with greater violence exposure in Study 1. Adolescents' unstructured socializing in both studies was associated with higher odds of ECV. CONCLUSIONS: Results indicate that subgroups of adolescents can be identified based on ECV and highlight the complexity of after-school activities as risk and protective factors in both past and more recent contexts.

Understanding the concurrence of environmental characteristics in Latino youth: A person-centered approach.

The current study aimed to identify profiles of youth presenting with a unique combination of environmental characteristics and understand the differential relationship between profile membership, anxiety, and depression symptoms. Data were drawn from 158 Latino youth between the ages of 11 and 13. Youth provided information on community violence exposure, acculturative stress, familial and peer support, and parental supervision. Main analyses included Latent Profile Analysis and Multivariate Analysis of Variance. Support for a four-profile model was found. Profiles are distinguished by mean levels of community violence exposure, acculturative stress, familial and peer support, and parental supervision. Profile membership was significantly associated with anxiety and depression, separately. Those belonging to the profile with the highest levels of environmental risk reported the highest levels of anxiety and depression. Findings contribute to a personalized understanding of risk and protective experiences in the environment for Latino youth.

[Supporting sex workers in dealing with risks and exposure to violence]. / Accompagner les travailleurs du sexe face aux risques et à l'exposition à la violence.

Médecins du Monde France is involved in supporting sex workers in reducing health risks, and has highlighted the fragility of this population with regard to current legislative measures concerning sex work. These multiple constraints have negative repercussions in terms of access to health rights, but also in terms of their work.

Individual and environmental correlates of childhood maltreatment and exposure to community violence: Utilizing a latent profile and a multilevel meta-analytic approach.

BACKGROUND: Childhood maltreatment (CM) and exposure to community violence (ETV) are correlated with physical/mental health and psychosocial problems. Typically, CM and ETV are examined separately, by subtypes within category, or collapsed across both into one category of adversity. Consequently, research is limited in identifying subgroups of individuals with different amounts of exposure to both CM and ETV. Accordingly, we lack sufficient understanding of the extent to which problems associated with CM and ETV vary based on the amount (i.e. dose) of exposure to both of these experiences. METHODS: We used 20 samples (28,300 individuals) to estimate person-centered profiles of CM and ETV occurrence and co-occurrence within each sample. An individual data multilevel meta-analytic framework was used to determine the average effect size across samples for different profiles and conditional probability correlations within sociodemographic, neighborhood, health, mental health, and psychosocial domains. RESULTS: The profile characterized by high levels of CM and high levels of ETV correlated with stressful life events, depression and anxiety symptoms, and general indicators of externalizing behaviors. CM predominant profiles were associated with mental health diagnoses and treatment. ETV predominant profiles associated with risk-taking/violent behavior and neighborhood-level disadvantage. However, nuance based on the dose of CM or ETV was evident. CONCLUSIONS: It is important to identify subgroups based on the amount of exposure to CM and ETV. These subgroups have differential relationships with correlates across domains. Greater delineation and description of the lived experience will allow for more precision in addressing the burden of childhood adversity.

Warmth and reciprocity with mothers, and young children's resilience to exposure to community violence in Colombia: findings from the La Sabana Parent-Child Study.

BACKGROUND: Exposure to community violence is common worldwide and is associated with emotional and behavioural problems in children. Little is known about sources of resilience. Building on our previous work on the contribution of callous-unemotional (CU) traits to child aggression in Colombia, we examined whether positive parenting is protective for children whose families are exposed to community violence. METHODS: Families were recruited from three demographically contrasting regions of Colombia. The sample comprised 235 children aged 3.5 years and their mothers, of whom 220 (93%) were followed up at age 5.0 years. Positive parenting was assessed as the average of maternal warmth and reciprocity, and as praise, and negative parenting as the average of negative affect and conflict seen in video recordings of standardized procedures. CU traits and oppositional defiant disorder were assessed by maternal report at ages 3.5 and 5.0 years, and mothers reported exposure to community violence over the 18 months between assessments. A range of potential confounds was included in adjusted analyses. RESULTS: In the families who were exposed to community violence, but not in the unexposed, maternal warmth and reciprocity were associated prospectively with lower CU traits (interaction, p = .007). In the exposed group maternal warmth and reciprocity explained 10% of the variance (ß = -.34, p = .001). Maternal praise was not associated with CU traits. Maternal negative parenting predicted higher CU traits as the main effect but not in interaction with community violence exposure. CONCLUSIONS: Maternal warmth and reciprocity with young children may promote resilience in the face of community violence. Programmes to enhance these protective processes may be needed especially where prospects for reducing community violence are limited. The centrality of parents for these children highlights the plight of those exposed to community violence, and also either separated from parents or orphaned.

Perceived sleep quality predicts aggressive offending in adolescence and young adulthood.

BACKGROUND: There are profound consequences when developing youth do not get adequate sleep. Adolescents who experience poor sleep may be more likely to engage in offending behavior. While there is a documented association between the number of hours youth sleep and their likelihood of offending, it is unclear how youths' perceptions of their sleep quality contribute to offending. Further, scholars have yet to rigorously examine the relation between sleep problems and offending in young adulthood, a developmental stage, which is both critical for desistance and in which sleep may play an important role. METHODS: Using a sample of 1,216 justice-involved male youth, this study uses within-individual longitudinal methods (fixed-effects Poisson regression models) to examine the relation between changes in perceptions of sleep quality and changes in offending behavior from ages 13 to 24. RESULTS: Increases in sleep problems are associated with increases in offending, particularly aggressive/person-related offenses, for both adolescents and young adults. This holds true even after controlling for time-varying anxiety, substance use, and violence exposure. CONCLUSIONS: Improving sleep quality may be critical for reducing aggressive behavior in at-risk adolescents and young adults. Interventions that address sleep quality, and not just quantity, may be particularly beneficial.

Exposure to Violence in Social Unrest, Resilience, and Mental Health of Older People in Hong Kong.

OBJECTIVE: Older adults are prone to the negative effects of exposure to violence on their mental health. This study aimed to examine the impact of exposure to violence during social unrest and the role of resilience in the mental health of older people. DESIGN: A total of 1,203 people aged 65 years or older were randomly selected for a telephone survey using the random digit dialing numbering method in Hong Kong. MEASUREMENTS: A 13-item scale was developed to measure exposure to violence. The Chinese versions of the Connor-Davidson Resilience Scale and the Startle, Physiological Arousal, Anger, and Numbness scales for measuring mental health status were adopted in the survey. RESULTS: The results showed that the more frequently older people were exposed to information, the more negative mental health status they had. However, exposure to witnessing and experiencing violence was not significantly associated with mental health status. Older adults' level of resilience had a moderating effect between exposure to information and mental health, whereas the effect of exposure to information on mental health was stronger for respondents with lower resilience. CONCLUSION: This study showed that emotional problems caused by exposure to related information among older people should be properly addressed during massive social unrest and conflict. Their resilience capacity is an important moderating factor. Future interventions and support services should focus on enhancing the resilience of older people to better equip them with overcoming problems related to macro-social issues.

Reciprocal Neighborhood Dynamics in Gun Violence Exposure, Community Health, and Concentrated Disadvantage in One Hundred US Cities.

Gun violence imparts a tremendous human and financial toll on local communities. Researchers have documented extensive mental and physical health consequences of generalized violence exposure but few studies have analyzed the particular impacts of gun violence on community well-being using nationally comprehensive data. We leverage a unique database of almost 16,000 neighborhoods in 100 US cities (2014-2019) to examine how year-over-year rates of gun violence correspond to overall neighborhood well-being and three aspects of community health: (1) health behaviors, (2) physical and mental health status, and (3) health prevention efforts. We simultaneously consider the reciprocal influence of neighborhood well-being on subsequent gun violence while accounting for concentrated disadvantage in communities. The results demonstrate that gun violence is associated with poorer community health in subsequent years, particularly health behaviors and mental/physical health status. Furthermore, we find substantial reciprocal effects for both gun violence and community health in their relationship to neighborhood concentrated disadvantage. These findings highlight the consequential role of gun violence in perpetuating cycles of harm in local communities.

Reviewing the Literature on the Impact of Gun Violence on Early Childhood Development.

PURPOSE OF REVIEW: To examine the impacts of gun violence on early childhood development including early childhood mental health, cognitive development, and the assessment and treatment of survivors. RECENT FINDINGS: The literature reflects that gun violence exposure is often associated with significant mental health outcomes including anxiety, post-traumatic stress, and depression in older youth. Historically, studies have focused on adolescents and their exposures to gun violence through proximity to gun violence within their communities, neighborhoods, and schools. However, the impacts of gun violence on young children are less known. Gun violence has significant impacts on mental health outcomes of youth aged 0-18. Few studies focus specifically on how gun violence impacts early childhood development. In light of the increase in youth gun violence over the past three decades with a significant uptick since the onset of the COVID-19 pandemic, continued efforts are needed to better understand how gun violence impacts early childhood development.

Longitudinal Patterns of Multidimensional Violence Exposure and Adolescent Early Sexual Initiation.

Early sexual intercourse is associated with sexually transmitted infections, pregnancy, and depressive symptoms, and delay of intercourse allows adolescents opportunities to practice relationship skills (Coker et al., 1994; Harden, 2012; Kugler et al., 2017; Spriggs & Halpern, 2008). Thus, understanding predictors of early sexual intercourse is crucial. Prior research has suggested that violence exposure is associated with early initiation of sexual intercourse in adolescence (Abajobir et al., 2018; Orihuela et al., 2020). However, most studies have looked only at a single type of violence exposure. In addition, little research has examined longitudinal patterns of violence exposure in order to determine whether there are particular periods when the violence exposure may have the strongest impact on sexual behavior. Guided by life history and cumulative disadvantage theories, we use longitudinal latent class analysis and data from the Future of Families and Child Well-being Study (N = 3,396; 51.1% female, 48.9% male) to examine how longitudinal patterns of multiple types of violence exposures across ages 3 to 15 are associated with early sexual initiation in adolescence. Findings suggest that experiencing persistent physical and emotional abuse across childhood was associated with the greatest prevalence of early sexual initiation. Early exposure to violence was not consistently associated with greater likelihood of sexual initiation; instead, early abuse was more strongly associated with sexual initiation for boys, while late childhood abuse was more strongly associated for girls. These findings suggest that gender-sensitive programs are highly needed to address unique risk factors for boys' and girls' sexual behaviors.