Finding social benefits after a collective trauma: Perceiving societal changes and well-being following 9/11

Individuals frequently perceive positive changes in themselves following adversity; after a collective trauma, they may perceive such benefits in others or in their society as well. We examined perceived benefits of the September 11, 2001 (9/11) terrorist attacks in a 3-year study of a national sample of adults (N = 1382). Many individuals (57.8%) perceived social benefits of 9/11, including increased prosocial behavior, religiousness, or political engagement. Individuals who found increased national religiosity as a benefit 2 months post-9/11 reported greater positive affect and life satisfaction and lower distress and posttraumatic stress up to 3 years post-9/11. Pre-9/11 religiousness and Republican political affiliation predicted perceiving religion-related social benefits post-9/11. Perceptions of social change are important but understudied responses to stressful events.     

Aftermath of Terror: A Nationwide Longitudinal Study of Posttraumatic Stress and Worry Across the Decade Following the September 11, 2001 Terrorist Attacks

Research conducted in the early years after the September 11, 2001 (9/11) terrorist attacks in New York, Pennsylvania, and Washington, DC demonstrated adverse psychological outcomes among residents of the United States who were exposed to the attacks both directly and indirectly via the media. However, less is known about the impact of this collective trauma over time. Beginning at the end of December 2006, a longitudinal study of a nationally representative sample of U.S. residents (Cohort 2, N = 1,613) examined the long‐term effects of 9/11, with annual assessments administered every year for 3 years. We assessed rates of 9/11‐related posttraumatic stress (PTS) annually during the first 2 years of the study; during the second and third years of the study, we assessed fear and worry regarding future terrorism. Rates of PTS among participants were compared with those assessed annually in a nationally representative sample between 2002 and 2004 (Cohort 1); results indicated a relatively stable pattern of 9/11‐related PTS symptoms for 6 years following the attacks. Five to six years after 9/11, we found an association between 9/11‐related PTS and both direct, B = 8.45, 95% CI [4.32, 12.59] and media‐based (live television), B = 1.78, 95% CI [0.90, 2.65] exposure to the attacks. Six to 7 years post‐9/11, fear and worry regarding future terrorism were predicted by 9/11‐related PTS symptoms that had been reported approximately 5 years after the attacks, B = 0.04, 95% CI [0.03, 0.05]. The psychological legacy of 9/11 was perceptible among many U.S. residents throughout the decade that followed.     

Predictors of the impact of the September 11th terrorist attacks on victims of intimate partner violence

This study examined the role of several hypothesized predictors of the impact of a potentially traumatic event, the terrorist attacks of September 11, 2001 (9/11), on a sample of women experiencing intimate partner violence (IPV) and related posttraumatic stress symptoms (PTSS). We found that IPV-related PTSS mediated the relationship between IPV and 9/11-related PTSS, confirming the hypothesis that severity of symptoms related to prior trauma plays a role in the development and severity of PTSS related to subsequent potentially traumatic events. Media exposure and threat appraisal were significantly positively associated with 9/11-related PTSS, whereas social support was significantly negatively associated with 9/11-related PTSS, with none of these variables serving as moderators of the relationship between IPV-related and 9/11-related PTSS. Our results suggest that trauma-related psychiatric history is an important factor in the development of PTSS subsequent to an additional potentially traumatic event, even after adjusting for relevant variables occurring at the time of that event.     

Acute Stress and Cardiovascular Health: Is There an ACE Gene Connection?

Cardiovascular disorders (CVD) are associated with acute and posttraumatic stress responses, yet biological processes underlying this association are poorly understood. This study examined whether renin‐angiotensin‐aldosterone system activity, as indicated by a functional single nucleotide polymorphism (SNP) in the angiotensin converting enzyme (ACE) gene, is associated with both CVD and acute stress related to the September 11, 2001 (9/11) terrorist attacks. European‐American respondents (N = 527) from a nationally representative longitudinal study of coping following 9/11 provided saliva for genotyping. Respondents had completed health surveys before 9/11 and annually for 3 years after, and acute stress assessments 9 to 23 days after 9/11. Respondents with rs4291 AA or TT genotypes reported high acute stress twice as often as those with the AT genotype. Individuals with the TT genotype were 43% more likely to report increased physician‐diagnosed CVD over 3 years following 9/11, when the following variables were included in the model: (a) pre‐9/11 CVD, mental health, and non‐CVD ailments; (b) cardiac risk factors; (c) ongoing endocrine disorders; and (d) significant demographics. The ACE rs4291 TT genotype, which has been associated with HPA axis hyperactivity and higher levels of serum angiotensin converting enzyme (ACE), predicted acute stress response and reports of physician‐diagnosed CVD in a national sample following collective stress. ACE gene function may be associated with both mental and physical health disorders following collective stress.     

Alexithymia and PTSD symptoms in urban police officers: cross-sectional and prospective findings

The relationship of alexithymia to posttraumatic stress disorder (PTSD) symptomatology was examined cross-sectionally in 166 urban police officers surveyed between 1998 and 1999 and prospectively in 54 of these officers who participated in a follow-up survey after the September 11, 2001 (9/11) terrorist attacks. In cross-sectional analyses, alexithymia scores were positively associated with PTSD symptom levels and self-reported childhood emotional abuse--neglect, but not with cumulative level of critical incident exposure. Alexithymia scores accounted for 11.2% of the variance in PTSD symptoms prior to accounting for additional predictors, but did not retain significance in the final model. In prospective analyses, alexithymia scores significantly predicted 9/11-related PTSD symptom severity over and above pre-9/11 PTSD symptoms.     

Parental response and adolescent adjustment to the September 11, 2001 terrorist attacks

This study examined adolescents' adjustment following the attacks of September 11, 2001 (9/11). A Web-based survey was administered 2 weeks and 7 months postattacks to a national sample of adolescents (N = 104). A randomly selected parent also completed a survey at the 7-month assessment. Although exposure to the attacks was indirect, over half the participants felt threatened. Adolescents' posttraumatic stress symptoms were associated with their acute stress symptoms, parental distress, parental coping advice, parental availability to discuss the attacks, and reports that 9/11-related discussions were unhelpful. Adolescents' distress symptoms were associated with a history of mental health problems, acute stress symptoms, and parental unavailability to discuss the attacks.     

Prevalence and psychological correlates of complicated grief among bereaved adults 2.5-3.5 years after September 11th attacks

A Web-based survey of adults who experienced loss during the September 11, 2001, terrorist attacks was conducted to examine the prevalence and correlates of complicated grief (CG) 2.5-3.5 years after the attacks. Forty-three percent of a study group of 704 bereaved adults across the United States screened positive for CG. In multivariate analyses, CG was associated with female gender, loss of a child, death of deceased at the World Trade Center, and live exposure to coverage of the attacks on television. Posttraumatic stress disorder, major depression, anxiety, suicidal ideation, and increase in post-9/11 smoking were common among participants with CG. A majority of the participants with CG reported receiving grief counseling and psychiatric medication after 9/11. Clinical and policy implications are discussed.     

Chronic PTSD patients' functioning before and after the September 11 attacks

This study examined how treatment-seeking veterans with preexisting posttraumatic stress disorder (PTSD) (n = 178) were affected by vicarious exposure to the September 11 terrorist attacks. Participants were surveyed 0 to 5 months prior to 9/11 and resurveyed 6 months after the attacks. Half the patients reported that thoughts and feelings about 9/11 impaired their functioning some (37%) or most or all of the time (13%). However, there was little evidence that vicarious exposure to 9/11 altered the course of these patients' functioning. Mean symptom, substance use, and role functioning outcomes were unchanged from pre-9/11 levels. Time spent following media coverage of 9/11 events was weakly associated (r = .17 to .18, p < .05) with only two of eight functioning outcomes.     

Posttraumatic Stress Trajectories in World Trade Center Tower Survivors: Hyperarousal and Emotional Numbing Predict Symptom Change

There is a paucity of knowledge concerning the underlying symptomatology of heterogeneous posttraumatic stress symptom (PTSS) trajectories following mass trauma, such as a terrorist attack. This study examined longitudinal PTSS trajectories using latent growth mixture modeling in 2,355 World Trade Center (WTC) tower survivors surveyed by the WTC Health Registry an average of 2.5, 5.5, and 10.5 years after the September 11, 2001 terrorist attacks. Covariates included sociodemographic characteristics, WTC‐related exposure, and other traumas/stressors. Four curvilinear PTSS trajectories were identified: low symptom (74.9%), recovering (8.0%), worsening (6.7%), and chronic (10.4%). The majority of WTC survivors (85.3%) maintained stable symptom trajectories over time, with PTSS changes occurring less often. Although WTC‐related exposure was associated with initial PTSS severity, exposure was not associated with chronicity or change of PTSS over time. Male gender and a higher number of post‐WTC disaster life‐stressors were associated with worsening symptom severity over time. Individuals with more severe hyperarousal symptoms at Wave 1, particularly of anxious arousal, were more likely to have PTSS that worsened over time, adjusted odds ratio (aOR) = 1.55. Less severe emotional numbing symptoms, particularly of dysphoria, at Wave 1, were marginally significantly associated with subsequent PTSS recovery, aOR = 0.75. Interventions that target hyperarousal and emotional numbing symptoms may mitigate a worsening of symptoms and facilitate posttraumatic recovery following future mass traumas, such as terrorist attacks. Further clinical implications are discussed.     

Possible association of Toll-like receptor 9 polymorphisms with cytokine levels and posttraumatic symptoms in individuals with various types of orthopaedic trauma: Early findings

Background

Although TLR9 polymorphisms may be associated with cytokine dysregulation, its role in regulation of cytokines due to bodily trauma or in relation to acute stress symptoms or posttraumatic stress symptoms (ASS/PTS) has not been evaluated.

Aims

To assess serum cytokine levels and levels of ASS and PTS in relation to four common TLR9 single-nucleotide polymorphisms (SNPs) in individuals with various types of orthopaedic trauma.

Methods

Forty-eight accident-injured individuals, aged 20–60 years were studied. Serum cytokine levels and TLR9 SNPS (1486T/C, 1237T/C, 1174G/A and 2848G/A) were assessed together with intensity of ASS and PTS symptoms.

Results

Statistically significant higher serum levels of IL-12 and IL-1β (p < .05) were found in individuals heterozygous for TLR9-1237 (TC) than in individuals expressing the most common TLR9-1237 type (TT), while differences in levels of IL-6 were not significant. Also, marginally significant levels of IL-6 were found in individuals expressing the common TLR9-1174 (GG) compared with individuals homozygous (AA) or heterozygous (GA) for this SNP. They also had non-significant higher intensity of ASS symptoms. A trend of higher PTS levels in individuals expressing the most common type TLR9-1174 (GG) was found, contrary to homozygous (AA) and heterozygous individuals (GA).

Conclusions

The results of this pilot study suggest that accident-injured individuals with certain TLR9 polymorphisms express higher levels of pro-inflammatory cytokines (IL-1β, IL-6 and IL-12). The associations of TLR9 SNPSs with increased risk of ASS or PTS should be further studied in larger groups of such patients.     

Pathways from War Trauma to Posttraumatic Stress Symptoms Among Tamil Asylum Seekers, Refugees, and Immigrants

Path analysis was used to examine the antecedents of posttraumatic stress (PTS) symptoms in Tamil asylum-seekers, refugees, and immigrants in Australia. The Harvard Trauma Questionnaire and a postmigration living difficulties questionnaire were completed by 62 asylum-seekers, 30 refugees, and 104 immigrants who responded to a mail-out. Demographic characteristics, residency status, and measures of trauma and postmigration stress were fitted to a structural model in PTS symptoms. Premigration trauma exposure accounted for 20% of the variance of PTS symptoms. Postmigration stress contributed 14% of the variance. Although limited by sampling constraints and retrospective measurement, the study supports the notion that both traumatic and posttraumatic events contribute to the expression of PTS symptoms.     

Posttraumatic stress symptoms, PTSD, and risk factors among lower Manhattan residents 2-3 years after the September 11, 2001 terrorist attacks

Manhattan residents living near the World Trade Center may have been particularly vulnerable to posttraumatic stress disorder (PTSD) after the September 11, 2001 (9/11) terrorist attacks. In 2003-2004, the authors administered the PTSD Checklist to 11,037 adults who lived south of Canal Street in New York City on 9/11. The prevalence of probable PTSD was 12.6% and associated with older age, female gender, Hispanic ethnicity, low education and income, and divorce. Injury, witnessing horror, and dust cloud exposure on 9/11 increased risk for chronic PTSD. Postdisaster risk factors included evacuation and rescue and recovery work. The results indicate that PTSD is a continued health problem in the local community. The relationship between socioeconomic status and PTSD suggests services must target marginalized populations. Followup is necessary on the course and long-term consequences of PTSD.     

Posttraumatic stress disorder and functional impairment among World Trade Center Health Registry enrollees 14–15 years after the September 11, 2001, terrorist attacks

The September 11, 2001, terrorist attacks on the World Trade Center (WTC) in New York City (9/11) had health-related consequences, including posttraumatic stress disorder (PTSD). PTSD is associated with functional impairment, which varies by symptom severity and other factors. This study aimed to identify predictors of functional impairment in individuals with low versus high PTSD symptom severity levels. WTC Health Registry enrollees exposed to 9/11 were surveyed four times between 2003 and 2015; cumulated data for individuals who endorsed at least one symptom on the PTSD Checklist–Civilian Version (PCL-C) at Wave 4 (2015–2016) were included (N = 30,287) and examined cross-sectionally. Individuals were classified based on PCL-C scores as having low/no (2–29) or high levels of PTSD symptom severity (≥ 44). Functional impairment was defined as subsequent difficulties in daily living. Among low/no PTSD severity participants, adjusted odds ratios (aORs) for the associations between functional impairment and poor self-rated health (vs. good), low social support (vs. high), and no physical activity (vs. active) were 1.23–1.92. In the same group, low versus high household income was associated with more functional impairment, aOR = 1.34, 95% CI [1.13, 1.59]. Among participants with high-level PTSD symptoms, women, aOR = 1.70, 95% CI [1.31, 2.20], and Hispanic enrollees, aOR = 1.76, 95% CI [1.31, 2.36], were more likely to report an absence of impairment. Self-rated health, social support, and physical activity emerged as important predictors of PTSD-related functional impairment across PTSD symptom severity levels, supporting clinical interventions targeting these factors.     

What Determines Posttraumatic Stress and Growth Following Various Traumatic Events? A Study in a Turkish Community Sample

This study aimed to examine the roles of personality traits, traumatic event types, coping, rumination, and social support in explaining posttraumatic stress symptoms (PTS) and posttraumatic growth (PTG) in a representative community sample of 498 Turkish adults. The results of 2 multiple regression analyses showed that PTS was associated with neuroticism, experiencing events involving intentional/assaultive violence, intrusive and deliberate rumination, and fatalistic coping. In contrast, PTG was related to conscientiousness, openness to experience, injury/shocking and sudden‐death type of events, deliberate rumination, problem‐solving coping, and perceived social support. When all variables were entered into the equation, almost two thirds of the variability (R ² = .64) in the severity of PTS and more than one third of the variability (R ² = .40) in PTG was explained. The findings can aid in the development of psychosocial support programs for individuals experiencing traumatic events.     

The Impact of Common Psychiatric and Behavioral Comorbidities on Functional Disability Across Time and Individuals in Post-9/11 Veterans

Returning veterans often face multiple concurrent psychiatric and behavioral conditions that negatively impact reintegration into civilian life and are associated with functional disability. Understanding how conditions interact to negatively impact functioning is an important step toward developing holistic treatment approaches optimized for this population. This study utilized a cross-sectional and prospective longitudinal cohort design, applying regression algorithms to understand the relative contribution of common clinical issues to functional disability in U.S. veterans who served after the September 11, 2001 (9/11), terror attacks. Community-dwelling post-9/11 veterans (N = 397) completed detailed assessments, including common clinical condition diagnoses, combat experience, and demographics, which were used to predict functional disability (World Health Organization Disability Assessment Schedule); 205 participants were reassessed approximately 1–2 years after enrollment. Regression analyses showed a strong association between the predictor variables and functional disability, f ² = 1.488. Validation analyses showed a high prediction ability of functional disability to independent samples, r = .719, and across time in the same individuals, r = .780. The strongest predictors included current posttraumatic stress disorder, depressive disorder, sleep disturbance, and pain diagnoses. These results demonstrate the importance of considering multiple common co-occurring conditions when assessing functional disability in post-9/11 veterans and suggest that certain syndromes contribute the most unique information to predicting functional disability with high confidence. As most U.S. veterans utilize private healthcare systems, these results have clinical utility for both Veterans Affairs and civilian healthcare practitioners in assessing and monitoring functional disability in post-9/11 veterans over time.     

Posttraumatic Stress Disorder,Functional Impairment,and Subjective Distress in World Trade Center Disaster Workers

Posttraumatic stress disorder (PTSD) is associated with functional deficits, poor physical health, and diminished quality of life. Limited research has examined PTSD symptom clusters and their associations with functioning and distress among disaster recovery workers, a population at high risk for PTSD due to potential for repeated trauma. The purpose of this study was to investigate associations between overall PTSD severity, as well as PTSD symptom clusters, and social and occupational functioning and subjective distress in World Trade Center (WTC) disaster workers after the terrorist attacks on September 11, 2001 (9/11). Disaster workers deployed to the site of the attacks completed assessments at three time points over approximately 5 years post‐9/11. Our sample consisted of participants who met criteria for PTSD or subthreshold PTSD at baseline (n = 514), 1‐year (n = 289), and 2‐year follow‐up (n = 179). Adjusted linear regression indicated that Clinician Administered PTSD Scale (CAPS)‐rated PTSD severity was positively associated with subjective distress, and deficits in social and occupational functioning, over time, CAPS Criterion F items; βs = .20 to .62, ps < .001. The reexperiencing and avoidance/numbing symptom clusters were associated with increased subjective distress, the avoidance/numbing and hyperarousal clusters were associated with deficits in social functioning, and the reexperiencing and hyperarousal clusters were associated with worse occupational functioning. These associations were consistent across the study period. Findings point to the importance of targeting PTSD symptom clusters associated with specific areas of functional impairment, with the goal of improving global outcomes.     

Posttraumatic Stress Disorder,Gender, and Risk Factors: World Trade Center Tower Survivors 10 to 11 Years After the September 11, 2001 Attacks

Ten to eleven years after the September 11, 2001 terrorist attacks, probable posttraumatic stress disorder (PTSD) was evaluated in 1,755 World Trade Center (WTC) evacuees based on data from the WTC Health Registry. Characteristics of men and women were compared and factors associated with PTSD symptom severity were examined using the PTSD Checklist (PCL). Compared with men (n = 1,015, 57.8%), women (n = 740, 42.2%) were younger and of lower socioeconomic status. Ten to eleven years after September 11, 2001, 13.7% of men and 24.1% of women met criteria for PTSD. Results indicated that when considered with all other variables (i.e., demographic, socioeconomic and social resources, exposure to the attacks, life events), gender was not a significant predictor of PTSD symptom severity. Being younger on September 11, 2001, unemployed, less educated, and/or having higher exposure to the attacks, unmet mental health care needs, and less social support predicted higher PCL scores for both genders (βs = .077 to .239). Demographic characteristics and socioeconomic resources (ΔR ² = .113) accounted for the largest amount of variance in PCL scores over and above exposure/evacuation, mental healthcare needs, and social support variables (ΔR ² = .093 to .102). When trends of unmet mental healthcare needs were analyzed, the most prevalent response for men was that they preferred to manage their own symptoms (15.1%), whereas the most prevalent response for women was that they could not afford to pay for mental health care (14.7%). Although the prevalence of probable PTSD in women tower survivors was approximately twice as high as it was for men, this is attributable largely to demographic and socioeconomic resource factors and not gender alone. Implications for treatment and interventions are discussed.     

The longitudinal course of PTSD among disaster workers deployed to the World Trade Center following the attacks of September 11th

This study examined the long-term mental health outcomes of 2,960 nonrescue disaster workers deployed to the World Trade Center site in New York City following the September 11, 2001 (9/11) terrorist attacks. Semistructured interviews and standardized self-report measures were used to assess the prevalence of posttraumatic stress disorder (PTSD) and other psychopathology 4 and 6 years after the attacks. Clinician-measured rates of PTSD and partial PTSD 4-years posttrauma were 8.4% and 8.9%, respectively, in a subsample of 727 individuals. Rates decreased to 5.8% and 7.7% for full and partial PTSD 6 years posttrauma. For the larger sample, self-report scores revealed probable PTSD and partial PTSD prevalence to be 4.8% and 3.6% at 4 years, and 2.4% and 1.8% at 6 years. Approximately 70% of workers never met criteria for PTSD. Although PTSD rates decreased significantly over time, many workers remained symptomatic, with others showing delayed-onset PTSD. The strongest predictors of ongoing PTSD 6 years following 9/11 were trauma history (odds ratio (OR) = 2.27, 95% confidence interval (CI) [1.06, 4.85]); the presence of major depressive disorder 1-2 years following the trauma (OR = 2.80, 95% CI [1.17, 6.71]); and extent of occupational exposure (OR = 1.31, 95% CI [1.13, 1.51]). The implications of the findings for both screening and treatment of disaster workers are discussed.     

Indirect exposure to the September 11 terrorist attacks: Does symptom structure resemble PTSD?

The authors conducted confirmatory factor analyses of reports of posttraumatic stress reactions using a national probability sample of individuals indirectly exposed to the terrorist attacks of September 11, 2001 (n = 675). Reactions at three time points in the year after the attacks were best accounted for by a lower-order, 4-factor solution (Reexperiencing, Strategic Avoidance, Emotional Numbing, and Hyperarousal Symptoms). Indirect exposure to a traumatic event appears to induce a response with a similar symptom structure as responses to direct exposure.     

A Longitudinal Study of the Bidirectional Relationship Between Social Support and Posttraumatic Stress Following a Natural Disaster

There is ample evidence that social support is protective against posttraumatic stress (PTS) symptoms through social causation processes. It is also likely that PTS is associated with decreased social support through social selection processes. Few studies, however, have examined the longitudinal and bidirectional associations between social support and PTS in a postdisaster context, and whether such associations vary by type of support (e.g., emotional, informational, or tangible). We examined these relationships using Galveston Bay Recovery Study data. Participants (N = 658) were interviewed 2–6 months (W1), 5–9 months (W2), and 14–19 months (W3) after Hurricane Ike in 2008. Longitudinal relationships between each support type and PTS were examined in cross‐lagged models. W1 emotional support was negatively associated with W2 PTS (Estimate = –.13, p = .007), consistent with social causation. W1 PTS was negatively associated with W2 emotional support (Estimate = –.14, p = .019), consistent with social selection. In contrast, pathways were nonsignificant at subsequent waves and for informational and tangible support. Results suggested that postdisaster social causation and selection were limited to emotional support and diminish over time. Based on these findings, postdisaster services should emphasize restoring supportive social connections to minimize the psychiatric consequences of disaster, especially among those with prior evidence of distress.