Gender Differences in Posttraumatic Stress Disorder Among U.S. Navy Healthcare Personnel

Sex Differences in Screening Positive for Post-Traumatic Stress Disorder After Combat Injury

INTRODUCTION

U.S. military women were at risk of combat exposure and injury from asymmetric warfare during the conflicts in Iraq and Afghanistan. Previous research has yielded mixed results when examining sex differences in PTSD following operational deployment. To date, no study has explored sex differences in PTSD after combat injury.

MATERIALS AND METHODS

This retrospective study included U.S. military service men and women who experienced a combat injury in Iraq or Afghanistan (March 2003 to March 2013) and completed a Post-Deployment Health Assessment (PDHA) within 1 year of injury. The PDHA is administered at the end of deployment and includes the 4-item Primary Care PTSD Screen. The prevalence of screening positive for PTSD was evaluated by sex using a chi-square test. Multivariable logistic regression was used to assess the association between sex and PTSD while adjusting for covariates.

RESULTS

The study sample included 16,215 injured military personnel (666 women and 15,549 men). The average time between injury and PDHA was 132 days (SD = 91.0). Overall, women had a higher prevalence of screening positive for PTSD than men (48.3% vs. 40.9%, P < .001). In multivariable regression, women had higher odds than men of screening positive for PTSD (odds ratio, 1.34; 95% confidence interval, 1.14-1.57). Psychiatric history was the strongest predictor of screening positive for PTSD regardless of sex (odds ratio, 1.59; 95% confidence interval, 1.45-1.74).

CONCLUSIONS

In this novel study of military service members, women were more likely to screen positive for PTSD than men after combat injury. Strategies to mitigate PTSD, enhance resiliency, and incorporate psychological care into injury rehabilitation programs for women may be needed for future U.S. military conflicts where they will play a larger role in combat operations.

Rates of Trauma Exposure and Posttraumatic Stress in a Pediatric Digital Mental Health Intervention: Retrospective Analysis of Associations With Anxiety and Depressive Symptom Improvement Over Time

BACKGROUND

More than 2 out of 3 children and adolescents in the United States experience trauma by the age of 16 years. Exposure to trauma in early life is linked to a range of negative mental health outcomes throughout the lifespan, particularly co-occurring symptoms of posttraumatic stress (PTS), anxiety, and depression. There has been an increasing uptake of digital mental health interventions (DMHIs) among youths, particularly for anxiety and depression. However, little is known regarding the incidence of trauma exposure and PTS symptoms among youths participating in DMHIs and whether PTS symptoms impact anxiety and depressive symptom treatment response. Moreover, it is unclear whether participation in a DMHI for anxiety and depressive symptoms is associated with secondary effects on PTS symptoms among trauma-exposed youths.

OBJECTIVE

This study aims to use retrospective data from youths participating in a DMHI to (1) characterize rates of trauma, PTS, and comorbid anxiety and depressive symptoms; (2) determine whether trauma exposure and elevated PTS symptoms impact the improvement of comorbid anxiety and depressive symptoms throughout participation in care; and (3) determine whether participation in a non-posttraumatic DMHI is linked to reductions in PTS symptoms.

METHODS

This study was conducted using retrospective data from members (children ages 6 to 12 years) involved in a pediatric collaborative care DMHI. Participating caregivers reported their children's trauma exposure. PTS, anxiety, and depressive symptom severity were measured monthly using validated assessments.

RESULTS

Among eligible participants (n=966), 30.2% (n=292) reported at least 1 traumatic event. Of those with trauma exposure and elevated symptoms of PTS (n=119), 73% (n=87) exhibited elevated anxiety symptoms and 50% (n=59) exhibited elevated depressive symptoms. Compared to children with no trauma, children with elevated PTS symptoms showed smaller reductions per month in anxiety but not depressive symptoms (anxiety: F2,287=26.11; P<.001). PTS symptoms also decreased significantly throughout care, with 96% (n=79) of participants showing symptom reductions.

CONCLUSIONS

This study provides preliminary evidence for the frequency of trauma exposure and comorbid psychiatric symptoms, as well as variations in treatment response between trauma-exposed and nontrauma-exposed youths, among participants in a pediatric collaborative care DMHI. Youths with traumatic experiences may show increased psychiatric comorbidities and slower treatment responses than their peers with no history of trauma. These findings deliver compelling evidence that collaborative care DMHIs may be well-suited to address mental health symptoms in children with a history of trauma while also highlighting the critical need to assess symptoms of PTS in children seeking treatment.

Ask and Ask Again: Repeated Screening for Smoking Increases Likelihood of Prescription for Cessation Treatment Among Women Veterans

BACKGROUND

Preventive screening at the point of care can increase desired clinical outcomes. However, the impact of repeated screening for tobacco use on receiving smoking cessation treatment among women Veteran population has not been documented.

OBJECTIVE

To examine screening for tobacco use using clinical reminders and the association between the number of screenings and prescription for cessation treatment.

DESIGN

A retrospective analysis using data from a 5-year implementation trial for cardiovascular risk identification conducted between December 2016 and March 2020.

SUBJECTS

Women patients who had at least one primary care visit with a women's health provider during the study period at five primary care clinics in the Veterans Affairs (VA) Healthcare System.

MEASURES

The outcome is prescription of pharmacotherapy or referral to behavioral counseling for smoking cessation on or after the screening date. The exposure is the number of screenings for tobacco use from the trial and the annual VA national clinical reminders during the study period.

RESULTS

Of 6009 eligible patients, 5788 (96.3%) were screened at least once for tobacco use over five calendar years, and 2784 of those screened (48.1%) were reported as current and former smokers. Among current and former smokers, 709 (25.5%) received a prescription and/or referral for smoking cessation. In the adjusted model, the average predicted probability of prescription and/or referral for smoking cessation was 13.7% among current and former smokers screened once over 5 years, 18.6% among screened twice, 26.5% among screened thrice, 32.9% among screened four times, and 41.7% among screened five or six times.

CONCLUSIONS

Repeated screening was associated with higher predicted probabilities of being prescribed smoking cessation treatment.

Prevalence and Associated Factors of PTSD Symptoms After the COVID-19 Epidemic Outbreak in an Online Survey in China: The Age and Gender Differences Matter

INTRODUCTION

The COVID-19 is a highly contagious disease belonging to the family of coronaviruses which can affect a great deal of people shortly. As a devastating event in the world, many people suffer the PTSD from this severe disease. The aim of study is to explore the prevalence and severity of post-traumatic stress disorder (PTSD) symptoms, and discuss the possible factors among the general public in China after the COVID-19 epidemic outbreak.

METHODS

This is a cross-sectional study. We used the self-designed demographic questionnaire and the Posttraumatic Stress Checklist-Civilian Version (PCL-C) of Chinese version as our screening tools to investigate 4872 subjects living in the communities in China from Nov. 8th, 2020 to Dec. 8th, 2020.

RESULTS

Finally, we received 3705 effective respondents. The response rates of the questionnaire can reach 76.97 percentage. Peculiarly, the prevalence of PTSD mild and severe symptoms after the COVID-19 epidemic outbreak was 53.2%. Mild PTSD symptoms accounted for 24.9%, and severe PTSD symptoms (scores above 38) accounted for 28.3%. PCL-C mean scores were 41.4±14.7. The females accounted for 67.7% of the total samples. Participants' mean age was 30.5±11.2 years old. The PCL-C gross scores of females were all higher than males in four subject groups. Meantime, gender and age made differences not only in total PCL-C points but also in the four aspects of PCL-C (P<0.001). The middle-aged group (ages from 45 to 60) got the lowest scores among the four groups.

CONCLUSION

COVID-19 brought tremendous psychological pressure on the public in many ways, including people's work, social contact, study, and daily life. Results of our research discover that symptoms of the PTSD are severe, including the re-experiencing, avoidance/numbing, flashbacks, and hyper-arousal. Actions should be taken at society level to prevent and protect individuals from PTSD suffering. Special attention should be paid to females and young people. Further studies should be conducted to explore the dynamic and other risk and protection factors to prevent PTSD.

Women's Mental Health in the U.S. Military - Where Are We Now? A Review of Recent Research

PURPOSE OF REVIEW

The field of women's mental health has grown in the military healthcare system, which has begun to acknowledge and address the sex-specific differences in mental health for service women. The purpose of this review is to examine recent research in active duty populations addressing perinatal mental health, post-traumatic stress disorder (PTSD), depression, and gender isolation.

RECENT FINDINGS

Within the examined literature focused on active duty populations, analyses by sex and gender continue to exist as notable gaps, and a majority of studies reviewed either do not aim to examine sex or gender-based differences, and/or do not analyze data with an eye towards these paradigms. Within perinatal mental health, the lack of studies led to an inability to make any notable conclusions. PTSD was the area with the most robust publications focused on active duty women, studies of major depression showed significant occupational impact, and the area of gender isolation continues to grow as a promising field with practical implications. We discuss current promising research and advance ideas for future research trajectories that will provide clinicians, policy makers, and scientists with more data to support improved mental healthcare for both military women and men.

Health Profiles of Military Women and the Impact of Combat-Related Injury

PURPOSE

The role of women in the United States military is expanding. Women are now authorized to serve in all military occupations, including special operations and frontline combat units, which places them at increased risk of combat exposure and injury. Little is known regarding the impact of these injuries on the health of military women.

METHODS

We conducted a retrospective matched cohort study of women service members who were injured during combat operations in Iraq and Afghanistan. Injured women were individually matched to non-injured controls at a 1:4 ratio. Medical diagnostic codes were abstracted from outpatient encounters in electronic health records, and hierarchical clustering was conducted to identify clusters of diagnostic codes, termed "health profiles." Conditional logistic regression was used to determine whether combat-related injury predicted membership in the profiles.

RESULTS

The study sample included 590 injured women and 2360 non-injured controls. Cluster analysis identified six post-deployment health profiles: low morbidity, anxiety/headache, joint disorders, mixed musculoskeletal, pregnancy-related, and multimorbidity. Combat-related injury predicted membership in the anxiety/headache (odds ratio, 1.73; 95% confidence interval, 1.38-2.16) and multimorbidity (odds ratio, 3.43; 95% confidence interval, 2.65-4.43) profiles.

CONCLUSIONS

Combat-related injury is associated with adverse post-deployment health profiles among military women, and women with these profiles may experience increased health care burden. As future conflicts will likely see a greater number of women with combat exposure and injury, health outcomes research among military women is paramount for the purposes of medical planning and resource allocation.

Gender differences in mental health problems of healthcare workers during the coronavirus disease 2019 outbreak

The coronavirus disease 2019 (COVID-19) pandemic has imposed both physical and psychological burdens on healthcare workers (HCWs). What is more, few studies have focused on the gender differences in mental health problems (MHPs) among HCWs during such an outbreak. Thus, the current study investigated the prevalence and gender differences of various MHPs among HCWs in China during the COVID-19 outbreak. This nationwide survey was conducted online from January 29 to February 3, 2020. General information was collected by questions about socio-demographics, work-related factors, and living situations. Depressive, anxiety, stress, and insomnia symptoms were assessed by the Patient Health Questionnaire-9, the Generalized Anxiety Disorder-7, the Impact of Event Scale-Revised, and the Insomnia Severity Index, respectively. Among the 2198 contacted HCWs, 1563 (71.1%) responded with valid data, of whom 1293 (82.7%) were females. The prevalences of depressive, anxiety, stress, and insomnia symptoms in participants were 50.7%, 44.7%, 52.5%, and 36.1%, respectively. Female HCWs had significantly higher scores in all four scales (p < 0.001) and higher prevalences in all MHPs involved (range, odds ratio [OR] 1.55-1.97). After adjusting for potential confounders, female HCWs still had higher risks for all MHPs involved than males (range, adjusted OR 1.36-1.96). HCWs present high prevalences of depressive, anxiety, stress, and insomnia symptoms during the COVID-19 outbreak. Furthermore, female HCWs are more vulnerable to all MHPs involved. These findings highlight the need for timely, special care and support for HCWs during the outbreak, especially for females.

Gender Differences in Anger Among Hospital Medical Staff Exposed to Patients with COVID-19

Purpose: Occupational exposure to patients with COVID-19 is a stress factor. The aim of this study was to assess gender differences in anger among medical hospital staff. Methods: N=78 hospital employees with direct or indirect contact to patients with COVID-19 completed State-Trait Inventory-2. Results: Female personnel showed higher scores in the main "trait anger" scale and its subscale "anger temperament," whereas "anger control-out" was significant lower. Direct patient contact had no influence. Conclusion: More specific training for female hospital staff could achieve health-related equity. Focusing on anger as a leading indicator could lead to better prevention and self-monitoring. Registered at Clinicaltrials.gov (NCT04368312).

Gender Differences in Mental Health Screening Outcomes Among U.S. Marines in Combat Support Occupations

BACKGROUND

The role of women in the U.S. Military has expanded over the years. Recent policy changes allow for women to serve in all military occupations, including direct combat. Multiple studies have identified a higher risk of mental health problems with increasing levels of combat, but little is known regarding gender differences among specific combat support occupations.

METHODS

A total of 15,900 U.S. Marines (1,065 women and 14,835 men) with a deployment between 2007 and 2009 were identified from electronic military records. A standard health questionnaire was completed at the end of deployment, which queried the service member on combat exposure and mental health. Mental health problems were defined as screening positive for post-traumatic stress disorder or depression, or receiving a mental health referral. Military occupation was categorized as electrical/mechanical repair, communications/intelligence, functional support/administration, and service/supply.

RESULTS

Overall, men reported more combat exposure than women. The communications/intelligence and service/supply occupations had the highest rates of combat exposure. After adjusting for combat exposure, previous diagnosis of anxiety or depression, deployment time, age, and military rank, women had higher odds than men for mental health problems in service/supply (odds ratio, 1.76; 95% confidence interval, 1.21-2.56) and communications/intelligence occupations (odds ratio, 1.60; 95% confidence interval, 1.01-2.52).

CONCLUSIONS

As women become fully integrated into the military, the study of health disparities becomes essential for medical planning purposes. Occupation-specific exposures should be considered, along with combat exposures, when determining a risk profile for adverse mental health outcomes among women and men after wartime deployment.

Sex differences in factors associated with post-traumatic stress disorder in acute type A aortic dissection patients

BACKGROUND

Emergency surgery for acute type A aortic dissection (AAAD) is associated with a high risk for posttraumatic stress disorder (PTSD), and the risk factors for PTSD symptoms development in AAAD patients of different sexes remain unclear.

OBJECTIVE

To identify the risk factors for PTSD symptoms separately in the females and males following AAAD.

METHODS

A sample population of 214 patients who had AAAD surgery was recruited. Patients' sociodemographic and disease-specific data were collected during hospitalization.

RESULTS

In this study, PTSD symptoms was present in 22.1% of the male patients and 20.0% of the female patients (P = 0.739). For the male patients with AAAD, PTSD symptoms were significantly positively associated with HADS-D score (P = 0.029), while those with university education and above (P = 0.039), stronger subjective support (P = 0.010) and greater optimism (P = 0.001) had significantly lower possibility for the presence of PTSD symptoms. For the female patients with AAAD, support availability (P = 0.031) was significantly negatively associated with PTSD symptoms while HADS-D score (P = 0.033) was significantly positively associated with PTSD symptoms.

CONCLUSION

Risk factors for PTSD symptoms differ in male patients and female patients following AAAD.

Sex differences in a rabbit eyeblink conditioning model of PTSD

We have developed a rabbit model of posttraumatic stress disorder (PTSD) which recapitulates several core features of PTSD, particularly hyperarousal and conditioned responding to trauma-associated cues. The work conducted with this model has all been done in male rabbits and, given sex differences in PTSD prevalence, it is important to expand our animal model of PTSD to include female rabbits to determine if they develop core features of PTSD, and if those core features can be treated. This is particularly important because, contrary to human studies, nearly all animal studies have found that males are consistently more vulnerable to various forms of acute and chronic stress than females. Using eyeblink conditioning in which we paired tone with a brief periorbital shock, we found that although both male and female rabbits acquired identical levels of conditioning, females showed more hyperarousal after conditioning but seemed to respond somewhat better to treatment.

Post-traumatic Stress Disorder by Gender and Veteran Status

INTRODUCTION

Population-based data on the prevalence, correlates, and treatment utilization of post-traumatic stress disorder by gender and veteran status are limited. With changes in post-traumatic stress disorder diagnostic criteria in 2013, current information from a uniform data source is needed.

METHODS

This was a secondary analysis of the 2012-2013 National Epidemiologic Survey on Alcohol and Related Conditions-III, which consisted of in-person interviews that were conducted with a representative sample of U.S. adults. The Alcohol Use Disorder and Associated Disabilities Interview Schedule-DSM-5 Version was used to assess past-year and lifetime post-traumatic stress disorder among veterans (n=3,119) and civilians (n=32,982). Data were analyzed from January to March 2017.

RESULTS

Adjusting for age and race/ethnicity, women veterans reported the highest rates of lifetime and past-year post-traumatic stress disorder (13.4%, 95% CI=8.8%, 17.9%, and 11.7%, 95% CI=7.1%, 16.4%) compared with women civilians (8.0%, 95% CI=7.4%, 8.6%, and 6.0%, 95% CI=5.5%, 6.6%); men veterans (7.7%, 95% CI=6.5%, 8.8%, and 6.7%, 95% CI=5.7%, 7.8%); and men civilians (3.4%, 95% CI=3.0%, 3.9%, and 2.6%, 95% CI=2.2%, 2.9%). Traumatic event exposure, correlates of lifetime post-traumatic stress disorder, and treatment seeking varied across subgroups. Men and women veterans were more likely than civilians to use a variety of treatment sources, with men civilians being least likely to seek treatment and men veterans exhibiting the longest delay in seeking treatment.

CONCLUSIONS

Post-traumatic stress disorder is a common mental health disorder that varies by gender and veteran status. Women veterans' high rates of post-traumatic stress disorder highlight a critical target for prevention and intervention, whereas understanding treatment barriers for men veterans and civilians is necessary.

Impact of Gender on Child and Adolescent PTSD

PURPOSE OF REVIEW

This review examines the recent literature on biological factors that influence sex differences in posttraumatic stress disorder (PTSD) during childhood and adolescence, focusing on neurobiological, hormonal, and genetic factors that may increase risk in girls.

RECENT FINDINGS

More than 60% of children and adolescents are exposed to traumatic events, and many develop PTSD. There is increasing recognition of gender differences in PTSD, with women having double the rates of the disorder compared to men. These gender differences in symptoms and their underlying neurobiology appear to emerge during adolescence, although it is still unclear which biological mechanisms may play key roles in the development of sex difference. The literature on gender effects in children and adolescents is still in the early stages, and more prospective and longitudinal work is needed; however, estrogen appears to play a key role in increasing risk for PTSD in girls, which emerges in adolescence.