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Urban adolescents are exposed to a substantial amount of community violence which has the potential to influence psychological functioning. To examine the relationship between community violence exposure and mental health symptoms in urban adolescents, a literature review using MEDLINE, CINAHL, PubMed, PsycINFO, CSA Social Services, and CSA Sociological Abstracts was conducted. Search terms included adolescent/adolescence, violence, urban, mental health, well-being, emotional distress, depression, anxiety, posttraumatic stress disorder, and aggression. Twenty six empirical research articles from 1997–2007 met inclusion criteria for review. Findings indicate an influence of community violence exposure on mental health symptoms, particularly posttraumatic stress and aggression. Mediators and moderators for community violence exposure and mental health symptoms help explain relationships. Limitations in the literature are the lack of consistency in measurement and analysis of community violence exposure, including assessment of proximity and time frame of exposure, and in analysis of victimization and witnessing of community violence. Knowledge about identification of urban adolescents exposed to chronic community violence and who experience mental health symptoms is critical to mental health nursing practice and research.
Urban adolescents report very high rates of community violence exposure (CVE); more than 85% witness some form of violence in their lifetime (Farrell & Bruce, 1997; Overstreet & Braun, 2000; Mazza & Reynolds, 1999; Pastore, Fisher, & Friedman, 1996) and as many as 69% report direct victimization (Duckworth, Hale, Clair, & Adams, 2000; Howard, Feigelman, Li, Cross, & Rachuba, 2002; Overstreet & Braun, 2000). These rates make it important to examine the effects of CVE on the psychological well-being of urban adolescents. For this paper, CVE is considered to be “deliberate acts intended to cause harm against a person or persons in the community” (Cooley, Turner, & Beidel, 1995, p. 202). CVE encompasses direct victimization and witnessing violence against others.
Depression, anxiety, posttraumatic stress disorder (PTSD), and aggression have negative associations with CVE in urban adolescents (Cooley-Quille, Boyd, Frantz, & Walsh, 2001; Foster, Kuperminc & Price, 2004; Gorman-Smith & Tolan, 1998; Mazza & Reynolds, 1999). These relationships between CVE and mental health, however, are not always consistent, and the impact of CVE on urban adolescents’ psychological functioning is not clearly established (Farrell & Bruce, 1997; White, Bruce, Farrell, & Kliewer, 1998). Some investigators discuss desensitization, where adolescents adapt by having lower than expected mental health symptoms in response to CVE (McCart et al., 2007; Ng-Mak, Salzinger, Feldman, & Stueve, 2004). These discrepancies call for a better understanding of the correlates between CVE and mental health.
The purpose of this article is to examine the research on the relationships between CVE and mental health symptoms in urban adolescents, identify major findings, and discuss gaps for future exploration. This integrative analysis aims to garner a better understanding of the effects of CVE on mental health and help to provide direction for nursing research and practice. This information can provide mental health nurses crucial information to aid in caring for the mental health needs of vulnerable and often disadvantaged adolescents.
A literature search in MEDLINE, CINAHL, PubMed, PsycINFO, CSA Social Services Abstracts, and CSA Sociological Abstracts was conducted. In the first search, keywords included: adolescent/adolescence, violence, urban, mental health, well-being, and emotional distress. The additional key terms of depression, anxiety, PTSD, and aggression were then used to target these four mental health symptoms as primary variables of interest as identified from the initial search. In order to analyze the most current literature, included in analysis were peer-reviewed, English-language journal articles on human research from 1997–2007. Empirical studies on the relationship between CVE and mental health variables were included. To be included, studies had to capture at least one of the core characteristics of CVE: direct victimization or witnessing violence in the community. Samples of adolescents in these studies had to be within the age range of 10–19 years, recruited via school or community settings, and living in or attending school in urban areas in the United States (Center for Disease Control, 2007; World Health Organization, 2004). Selecting community based samples of adolescents draws from the implication that findings from clinically referred samples may not be as generalizable as non-referred samples (Ozer, 2005; Ozer & McDonald, 2006; Ozer & Weinstein, 2004).
Excluded from analysis were studies including both urban and suburban samples; studies with urban and suburban participants do not always distinguish between settings when analyzing the relationship between CVE and mental health (e.g. Flannery, Singer, & Wester, 2003; O’Keefe, 1997). Studies with samples of refugee and homeless adolescents were excluded. Refugees may experience multiple traumas and losses, often related to war, and present with a unique set of mental health problems (Ehnholt & Yule, 2006). Homeless adolescents are particularly vulnerable to victimization in their settings and are at great risk for mental health problems (Stewart et al., 2004). Studies examining substance abuse did not fit inclusion criteria or were excluded because it was often treated as a risk behavior, not in the same context as other mental health symptoms (e.g. Albus, Weist & Perez-Smith, 2004). Twenty six articles met criteria for analysis and were examined through study sample and design, measurement of key variables, and key findings on the relationship between CVE and mental health symptoms (see Table 1).
An integrative review of the 26 articles produced seven longitudinal and 19 cross-sectional designs. No papers had a lead investigator who was a nurse and only one nurse scholar was a secondary author among the 26 articles (Davis of McGee et al., 2001). Seventeen studies had samples with greater than 50% African American adolescents and four were predominately Hispanic/Latino populations. Almost all of the studies were conducted with adolescents of disadvantaged socioeconomic status. Eleven different measurements of CVE were used. The time frame for exposure varied, including the prior six months, year, three years, during high school, and over the adolescent’s lifetime. All studies used adolescent self-report measures of CVE and mental health variables. Six studies included parent or teacher report of adolescent behaviors (Gorman-Smith & Tolan, 1998; Ng-Mak et al., 2004; Ozer, 2005; Ozer & McDonald, 2006; Ozer & Weinstein, 2004; Richards et al., 2004). Two studies used experience sampling methods (ESM) to obtain information on daily experiences to supplement self-report data (Hammack, Richards, Luo, Edlynn, & Roy, 2004; Richards et al., 2004).
Parameters of CVE differed across studies. Investigators measured a combination of victimization, witnessing, and/or hearing about violence in the community – either in isolation or together. Of the 24 studies assessing both victimization and witnessing, 11 statistically examined the relationship of victimization and witnessing with adolescent mental health symptoms separately (Cooley-Quille et al., 2001; Duckworth et al., 2000; Foster, et al., 2004; Hammack et al., 2004; Howard et al., 2002; Richards et al., 2004; Rosenthal, 2000; Rosenthal & Hutton, 2001; Rosenthal & Wilson, 2003; Ruchkin, Henrich, Jones, Vermeiren, & Schwab-Stone, 2007; Schwab-Stone et al., 1999). Two assessed witnessing only (Farrell & Bruce, 1997; White et al., 1998). All others assessed CVE as a composite of witnessing and victimization. Three explicitly stated that sexual assault was included in their measurement of CVE (Duckworth et al., 2000; Moses, 1999; Ng-Mak et al., 2004). Many used a modified version of established instruments, with specific modifications, deletions or additions not always explicit. Only one study did not use an established instrument (Moses, 1999). All but three studies used CVE instruments developed in low-income neighborhoods with minority children and adolescents (Gorman-Smith & Tolan, 1998; McCart et al., 2007; Self-Brown et al., 2006).
Twenty-seven different instruments were used to assess depressive symptoms, PTSD symptoms, anxiety, distress, aggression, and suicidal ideation. In all studies, analysis of the relationships between CVE and mental health correlates were based on symptom severity through correlation, regression, and structural equation modeling (SEM). Some reported descriptive statistics of scores indicative of clinical significance, but these were not used in analysis of relationships (Duckworth et al., 2000; Foster et al., 2004; Mazza & Reynolds, 1999; McCart et al., 2007; Overstreet, Dempsey, Graham, & Moely, 1999; Rosenthal & Wilson, 2003; Self-Brown et al., 2006).
Although there was a substantial amount of investigation into anxiety and depressive symptoms as unique symptoms, the discussion of depressive symptoms and anxiety at times overlapped with the terms internalizing symptoms, emotional distress, and anxiety/depression. Studies did not specify that these were synonymous, but acknowledged that the two were related or measured together (Gorman-Smith et al., 1998; Schwab-Stone et al., 1999). Strengths of correlations between CVE and depressive symptoms ranged from r=.11 to r=.51 and for CVE and anxiety from r=.20 to r=.50 (Cooley-Quille et al., 2001; Dempsey, 2002; Foster et al., 2004; Hammack et al., 2004; Mazza & Reynolds; 1999; Moses, 1999; Ozer, 2005; Ozer & McDonald, 2006; Ozer & Weinstein, 2004; Rosenthal, 2000; Ruchkin et al., 2007; Self-Brown et al., 2006).
One study indicated a moderate association between CVE and suicidal ideation for both males and females (Mazza & Reynolds, 1999). Two found no significant relationship between CVE and depressive symptoms (Cooley-Quille et al., 2001; Overstreet et al., 1999); one found no significant relationship between CVE and emotional distress (measured as depression and anxiety) (Farrell & Bruce, 1997); and one found no relationship between CVE and anxiety in males (White et al., 1998). Two reported significant small to moderate correlations with symptoms of anxiety and depression combined as one variable (Gorman-Smith & Tolan, 1998; Schwab-Stone et al., 1999). Overall, a majority indicated a relationship between CVE and depressive symptoms and anxiety.
Regression analyses occasionally revealed a different relationship between CVE and depression from simple correlation. Controlling most often for age and gender, studies specified that CVE accounted for 7–11% of the variance in depressive symptoms and anxiety (Dempsey, 2002; Foster et al., 2004; Overstreet et al., 1999). Even though there was a significant positive moderate correlation between CVE and depressive symptoms, when PTS and suicidal ideation were controlled for, the relationship lost significance (Mazza & Reynolds, 1999). Similarly, CVE and suicidal ideation had a moderate association, but lost significance when depressive symptoms and PTS were controlled for (Mazza & Reynolds, 1999). Controlling for the other mental health variables was not a consistent step in the studies analyzing CVE and depressive symptoms and anxiety, but proved to be an important strategy in determining the strength of variation accounted for by a single variable. In addition, when controlling for previous symptom levels, CVE still accounted for a small amount of the variance in changes of anxiety/depression (Gorman-Smith & Tolan, 1998) and intrusive symptoms (Ozer, 2005).
Three studies used SEM to assess the relationship between CVE and depressive and anxiety symptoms. Schwab-Stone et al. (1999) pointed to the strengths of SEM, in which data on multiple measurements of well-being could be aggregated into latent constructs and measurement error is incorporated to reflect a more accurate picture of the relationship between CVE and mental health symptoms. Indeed, studies using SEM provided new and more refined information about CVE and mental health. Using emotional distress as an inferred latent variable for anxiety and depression, no relationship was found with CVE (Farrell and Bruce, 1997). CVE was associated only with internalizing symptoms (anxiety and depression) in younger adolescents, and was not related to changes in emotional distress (anxiety/depression) over time (Farrell & Bruce, 1997; Schwab-Stone et al., 1999).
The relationship of PTSD, the symptom clustering of intrusive recollections, avoidant/numbing symptoms, and hyper-arousal symptoms, and CVE was unique (American Psychiatric Association, 2000). The terms distress, PTS, and PTSD were used to describe some of the symptoms associated with PTSD in this sample. No study used the clinical diagnosis of PTSD. Thus, the term PTS will be used to discuss the findings associated with distress, PTS, and PTSD symptoms.
Positive correlations between PTS and CVE were generally significant with small to moderate effect sizes (r=.19-r=62) (Cooley-Quille et al., 2001; Dempsey, 2002; Duckworth et al., 2000; Foster et al., 2004; Mazza & Reynolds, 1999; McCart et al., 2007; Overstreet & Braun, 2000; Overstreet et al., 1999; Ozer & Weinstein, 2004; Rosenthal & Wilson, 2003; Self-Brown et al., 2006). Regression analysis also supported a relationship, with CVE predicting 3–19% of the variance of PTS (Cooley-Quille et al., 2001; Dempsey, 2002; Duckworth et al., 2000; Foster et al., 2004; Howard et al., 2002; McCart et a., 2007; Ng-Mak et al., 2004; Ozer & Weinstein, 2004). When controlling for depression and suicidal ideation, Mazza and Reynolds (1999) still found CVE to be a predictor of PTS. In regression analysis, victimization and witnessing separately were not as strong predictors of PTS as when they co-existed. Ozer and McDonald (2006) found that daily hassles and CVE were powerful predictors, together accounting for 42% of the variance in PTS. One study used SEM to assess CVE and PTS, indicating a moderate relationship between CVE and the latent variable of stress (Richards et al., 2004).
Aggression is defined as hostile or violent behavior or attitudes (Soanes & Stevenson, 2006). Aggression in adolescents was referred to by a variety of terms, including externalizing behavior, delinquency, perpetration of violence, antisocial behavior, hostility, anger, and aggressive behavior. These terms are not interchangeable, but measurements of these variables were used to reflect aggression in adolescents. Thus, the term aggression will be used as an indicator of these terms. Aggression had moderate to strong relationships with CVE, both in correlation and regression analysis. Correlation strength measured r=.14 for a single description of CVE (being beaten up/jumped) (Moses, 1999) and r=.30 to r=.75 for CVE as summed by the instrument (Farrell & Bruce, 1997; Foster et al., 2004; Gorman-Smith & Tolan, 1998; McCart et al., 2007; Ozer, 2005; Ozer & McDonald, 2006; Ruchkin et al., 2007; Schwab-Stone et al., 1999). Overall, these correlations were stronger than those associated with PTS, depressive symptoms, or anxiety.
In regression analysis, CVE accounted for 5–37% of the variance in aggression (Duckworth et al., 2000; Foster et al., 2004; Gorman-Smith & Tolan, 1998; McCart et al., 2007; Ng-Mak et al., 2004; Ozer, 2005; Ozer & McDonald, 2006; Rosenthal, 2000). A strong association between CVE and aggression remained when using SEM, and CVE was predictive of aggression in females (Farrell & Bruce, 1997; Richards et al., 2004; Ruchkin et al., 2007; Schwab-Stone et al., 1999). Ozer and McDonald (2006) found that CVE and daily hassles were powerful predictors of aggression (total R2=.34).
Not all studies distinguished victimization and witnessing of violence. Yet studies that did make this distinction found differential impact of CVE on mental health. Rosenthal (2000) found that victimization and witnessing CVE were independently related to various distress symptoms. Victimization had a slightly stronger association with depression, and witnessing had a slightly stronger association with anger, though both had small to moderate relationships and predicted a small amount of the variance. Overall, there was no consistency in the outcomes of victimization and witnessing. Rosenthal (2000) concluded that in order to assess the full impact of CVE, as well as their overlapping relationship, victimization and witnessing must be considered together.
Some investigators measured and analyzed victimization and witnessing separately and found that they were highly correlated (r=.50) and showed similar relationship to symptoms (both r=.26 with PTSD symptoms) (Ozer & Weinstein, 2004). Even though victimization and witnessing were correlated, Hammack et al. (2004) (r=.60, p<.001) and Howard et al. (2002) (r=.66, p<.000), both analyzed each independently, citing that the two were not mutually exclusive experiences. Findings indicated that mental health symptoms associated with the predictive model of victimization (despondency and lack of belongingness) were different than that of witnessing (intrusive thoughts, vigilance/avoidance, and distraction) (Howard et al., 2002). Other investigators also found differences in these relationships (e.g. Cooley-Quille et al., 2001; Foster et al., 2004). Failure to identify consistent findings associated with victimization and witnessing CVE may be due to the implausibility of finding an adolescent in an urban setting who has not experienced one without the other (Overstreet et al., 1999).
Few studies discussed the impact of specific events of CVE. Moses (1999) focused on six single items, assessing the impact of a major traumatic event, such as being shot at or witnessing violence against family. Witnessing violence against family had small, but significant relationships with depression and aggression; being shot/stabbed was also correlated with aggression. Though data were not collected from a standardized instrument, the unique and specific information from these items helped to identify key characteristics of CVE that may be more detrimental to mental health. Three studies included items on sexual assault in the measurement of CVE, all indicating correlations between CVE and distress or depression (Duckworth et al., 2000; Moses, 1999; Ng-Mak et al., 2004). This specific victimization experience may also have a unique impact on mental health symptomatology.
A moderator is a variable that “affects the direction and/or strength of the relation between the independent or predictor variable and the dependent or criterion variable” (Baron & Kenny, 1986, p. 1174). Nine studies examined moderators for CVE and mental health symptoms in urban adolescents, including gender (Foster et al., 2004; Schwab-Stone et al., 1999), family relationship characteristics (Gorman-Smith & Tolan, 1998; Hammack et al., 2004; Overstreet et al., 1999; Ozer, 2005; Ozer & Weinstein, 2004; White et al., 1998), school connectedness (Ozer, 2005), parental mental health (Self-Brown et al., 2006), ethnicity, and grade level (Schwab-Stone et al., 1999).
Discrepant results were identified for the moderating role of family support. White et al. (1998) found that family support was not a moderator for CVE and anxiety. Gorman-Smith and Tolan (1998) found that CVE was significantly related to aggression for youth with high family structure and youth with low family cohesion CVE was significantly related with increased depression and anxiety. In other studies, the presence or absence of, and helpfulness of mother, father, and siblings varied in their moderating effects (Overstreet et al., 1999; Ozer, 2005; Ozer & Weinstein, 2004). Specifically, the less helpful/absent mother was a moderator for CVE and depressive, PTSD symptoms, and aggression (Overstreet et al., 1999; Ozer, 2005; Ozer & Weinstein, 2004). Hammack et al. (2004) reported that social support (a self-report measure of social support and measures of time spent with family and maternal closeness) was a protective and stabilizing force for adolescents exposed to CVE. This multidimensional framing of social support may have contributed to the findings. Parental mental health was also found to be a moderator for CVE and PTS (Self-Brown et al., 2006). School connectedness was not found to be a moderator of the effects of CVE (Ozer, 2005; Ozer & Weinstein, 2004).
A mediator is present when variation in the independent variable accounts for variation in the proposed mediator, variation in the mediator accounts for variation in the dependent variable, and when the first two relationships are controlled for, the significant relationship between the independent and dependent variable loses significance (Baron & Kenny, 1986). Six studies examined mediators of CVE and mental health symptoms including negative coping (Dempsey, 2002), community chaos (Duckworth et al., 2000), PTS symptomatology (Mazza & Reynolds, 1999; Ruchkin et al., 2007), neighborhood safety, and family conflict (Overstreet & Braun, 2000). Community chaos, as a significant mediator for witnessing violence and PTS and problem behaviors, places emphasis on the role of community instability (Duckworth et al., 2000). Overstreet and Braun (2000) found neighborhood safety to be a mediator for CVE and PTS. Even though negative coping acted as a mediator for CVE and PTSD, depression, and anxiety, positive coping did not have the inverse effect (Dempsey, 2002).
Investigating the role of PTS as a mediator for CVE helped to further explain the intricate and complex relationship of CVE and mental health symptoms. Investigating PTS as a mediator indicated that PTS was both an outcome of CVE and also preceded other mental health symptoms such as depression, anxiety, or aggression. This is complex because of similarities that may exist between anxiety, depression, aggression, and PTS (Mazza & Reynolds, 1999). In this review, support was found for the mediating role of PTS. PTS functioned as a mediator to depression for witnessing and victimization of CVE (Mazza & Reynolds, 1999; Ruchkin et al., 2007). Gender differences were identified, where PTS acted as a partial mediator for CVE and commission of violence in males, but not females (Ruchkin et al., 2007). The role of PTS as a mediator has important clinical implications for assessment and care of urban adolescents exposed to CVE. PTS symptoms were not only an outcome of CVE, but also a risk factor for the development of other mental health sequelae in urban adolescents.
Males and females alike are exposed to substantial amounts of violence, but the influence of such exposure varied. The majority of samples were predominately female. Findings indicated that there was little consensus on the differing effects of CVE on mental health for males and females. Some results found that females exposed to CVE were more likely to exhibit anxiety and depressive symptoms than their male counterparts (McGee et al., 2001; Moses, 1999). Anxiety was related to CVE only in females (White et al., 1998), as was violent behavior (Farrell & Bruce, 1997). Other results indicated that anxiety was associated with victimization in males, but not females (Foster et al., 2004). Although males were more distressed by victimization than witnessing, females had no difference in the impact of either victimization or witnessing.
There are likely mediating and moderating effects in gender. Schwab-Stone et al. (1999) found that the strength of the association between CVE and internalizing and externalizing behavior was not moderated by gender. Foster et al. (2004), however, found that gender moderated the relationship between witnessing and depressive symptoms and anxiety, with females who witnessed high levels of CVE having higher symptoms of depression and anxiety. Gender did not necessarily have the same moderating effect for victimization and symptoms. Ruchkin et al. (2007) assessed the mediating role of PTS and the findings suggested that males exposed to CVE and who experienced PTS committed more violence. The effects of the gender variable in mediation and moderation analysis presented conflicting results, indicating that further investigation is needed.
Although the research shows discrepant findings about the relationship between CVE and mental health symptoms in urban adolescents, there was clear and convincing evidence of an association between CVE and increased depressive symptoms, anxiety, PTS, and aggression. Aggression and PTS had the strongest relationships with CVE. Depression and anxiety had significant correlations with CVE, but with regression analysis, results often lost significance. Controlling for variables and confounders in regression helped to give a clearer picture of the effect of CVE on mental health. After controlling for the other mental health variables and confounders, PTS and aggression had the strongest relationships with CVE. Potentially, the relationship of CVE and depression/anxiety is more complex with findings changing based on the statistical methods of examining the relationships. The relationship, however, with PTS and aggression seem more stable; regardless of simple correlation or more complex approaches, there is always a relationship. SEM augmented the results with the construction of latent variables and inclusion of measurement error to better describe relationships. Additional analysis beyond correlation is needed to assess the relationships between CVE and mental health symptoms.
The role of mediators and moderators in assessing the mechanisms by which CVE influences mental health symptoms is critically important in understanding the mental health status of urban adolescents. Many studies to date indicate that neighborhood and family characteristics may have had a mediating effect for CVE and mental health. Better understanding these mediating effects is key to future investigative efforts. Clarification of the role of PTS as a mediator and an outcome can be helpful in identifying urban adolescents who might benefit from mental health services. CVE is substantial among male and female urban youth, and consequences of exposure did not appear to have consistent findings in gender differences.
The lack of consistency in the examination of CVE was a major limitation. The discrepancies stem from different time periods of recall for exposure, modification of instruments, and analysis of CVE as victimization, witnessing, or both. Comparing the results of studies that assess the impact of lifetime CVE versus the past year may not be explicating a true understanding of relationships with mental health symptoms. Even among studies using the same instruments, different time frames were used, possibly causing methodological flaws. Witnessing a shooting in the community two years prior to administration of the instrument would not be captured in an evaluation of CVE in the prior year. Recall of the time frame of CVE may not be consistent. The influence of time in development of mental health symptoms can also be of key importance. Additionally, modifications in instruments, such as deletion of items, were not always specified, making it difficult to effectively compare findings across studies. Furthermore, differences among victimization, witnessing, and total CVE were inconsistent. Not all studies separated witnessing and victimization, creating a complicated comparison across studies, nor was there consensus about the value of distinguishing between the two.
Another methodological issue was the lack of information on proximity and relationship of the adolescent to the victim. Failure to collect data on this information limits the knowledge of how these characteristics affect mental health of urban adolescents. Few instruments measuring CVE were extensive, and those that did include more detailed questions about proximity and relationships did not incorporate these results in the data analysis (Duckworth et al., 2000). For example, there did not appear to be assessment of comparing witnessing a murder as opposed to witnessing a fight. Items used by Moses (1999) provided the most detail for proximity and relationship of victim, but these items was not part of a standardized instrument.
The methods and design of these studies point to another limitation. Self-report data are the mainstay of the evaluation of the relationship between CVE and mental health symptoms in urban adolescents. Although few studies incorporated teacher and parent report of behaviors, findings indicated that these assessments did not have the same findings as self-report (Ng-Mak et al., 2004; Ozer & McDonald, 2006; Ozer & Weinstein, 2004). Adolescents experienced symptoms of depression, anxiety or PTS, but adults were not aware or able to see a display of these emotions. In addition, cross-sectional data were collected in the majority of the studies. With cross-sectional data, there is the possibility that urban adolescents experiencing depressive symptoms or anxiety are more at risk to have CVE. Longitudinal analysis supported a strong argument for the directionality of the relationship between CVE and mental health and also allowed for control of previous levels of symptomatology in analysis (Farrell & Bruce, 1997; Gorman-Smith & Tolan, 1998; Ozer, 2005; Ruchkin et al., 2007; White et al., 1998).
Overall, CVE had a strong correlation with, and was a predictor, for aggression. The assessment of aggression, though, sometimes virtually overlapped with CVE. Acts of perpetration of violence, delinquency, and other aggressive behavior by urban adolescents could be argued as reflective of CVE. For example, items regarding CVE included events such as witnessing someone being shot and for perpetration of violence, items included events such as using a weapon to get something from someone (Ozer & McDonald, 2006). The questions assessing these variables may in fact be overlapping. Indeed, externalizing symptoms all appeared to be related to the mental health and well-being of urban adolescents. Many studies examined both internalizing and externalizing symptoms, indicating that these behaviors were reflective of mental health and psychological functioning (Cooley-Quille et al., 2001; Ozer, 2005; Ozer & McDonald, 2006; Schwab-Stone et al., 1999).
Desensitization, or adaptation and emotional numbing to CVE, has been offered as a possible explanation for results which indicate that CVE does not affect mental health status (Fitzpatrick, 1993; Osofsky, Wewers, Hann, & Fick, 1993). Some findings of this review pointed to desensitization when there was no relationship with CVE and mental health symptoms (Farrell & Bruce, 1997; Moses, 1999; Ng-Mak et al., 2004; White et al., 1998). Ng-Mak et al. (2004) also discussed the presence of pathologic adaptation in a small subset of their sample, in which adolescents did not experience internalizing distress symptoms such as being sad, worrying, or crying, but increased their aggressive behavior. McCart et al. (2007), however, found minimal support for desensitization in their probability sample of urban adolescents. In their regression analyses, however, CVE was not isolated from family violence and sexual assault. Overall, significant relationships between CVE and mental health symptoms indicate that desensitization or pathological adaptation may not be the normative response to CVE. In this review, there was no consensus for desensitization or pathological adaptation as an explanation for non-significant findings. The role of mediators, moderators, and other mental health problems such as PTS, may also help to explain non-significant findings.
Detailed information about relationships and proximity of CVE is lacking. Increased knowledge of the effects of witnessing a violent event in close proximity or against a person in close personal relations with the adolescents could help to determine how these factors affect mental health symptoms. Identification of these aspects may be methodologically difficult, but further exploration is needed. Current instruments that do include these characteristics are often modified or the shortened version is used. In addition, knowledge about victimization characteristics would also help to augment the knowledge.
Nursing is virtually absent from this body of science. Yet, nurses working in mental health settings have the opportunity to engage in assessment and care of urban adolescents threatened by CVE. Knowledge about identification of urban adolescents exposed to chronic CVE who experience symptoms of depression, aggression, anxiety, or PTS would be an important contribution to nursing research and practice. Relationships between CVE and mental health symptoms exist for urban adolescents, and mental health nurses can position themselves to become actively engaged in identification and care of this vulnerable population. This is a prime opportunity to explore the understanding of the mechanisms to which CVE affects mental health through education, practice, and research.
Education efforts for psychiatric and mental health nursing should target knowledge about the detrimental effects of violence in the community, as well as interventions that are successful in helping adolescents who are vulnerable to CVE. In clinical practice with urban adolescents, assessment for violence exposure, as well as depression, anxiety, aggression, and PTS should be routine. Assessment of CVE, through mode and proximity, can provide nurses in clinical practice knowledge and opportunities for intervention for potential vulnerabilities to mental health consequences in this population. Given the mediating effects of PTS, early screening, identification, and intervention would be beneficial for improved mental health outcomes. Nursing science must also become involved in this area of research. Nursing inquiry into the understanding of effects of CVE will help to identify what augments healthy development in urban adolescents.
The continued high rates of chronic CVE to which urban adolescents are exposed necessitate assessment of the impact and the mechanisms by which CVE influences mental health. The empirical research conducted with urban adolescents and the relationship between CVE and mental health symptoms have created a strong base from which future studies can be designed. Knowledge of these relationships and continued investigation of mediators and moderators for CVE and mental health symptoms remains an important initiative. There is still a great deal of exploration needed to understand the relationships between CVE and mental health in urban adolescents. Nursing science must be involved in this area of health care for urban adolescents.
This research was supported by NIH/NINR (2-T32-NR007100) Research on Vulnerable Woman, Children and Families. This publication was also supported by the cooperative agreement number 5 U49 CE001093 from The Centers for Disease Control and Prevention. Its contents are the sole responsibility of the authors and do not necessarily represent the official views of the Centers for Disease Control and Prevention.
Catherine C. McDonald, T32 Pre-doctoral Fellow 2007–2008, Research on Vulnerable Women, Children, and Families, Center for Health Disparities, University of Pennsylvania, School of Nursing.
Therese R. Richmond, Associate Professor, University of Pennsylvania, School of Nursing.