The psychobiology of stress and intimate partner violence

Long-term public healthcare burden associated with intimate partner violence among Canadian women: A cohort study

Intimate partner violence (IPV) is a major global health issue, yet few studies explore its long-term public healthcare burden in countries with universal healthcare systems. This study analyzes this burden among Canadian women using data from the Neighborhood Effects on Health and Wellbeing survey and Ontario Health Insurance Plan (OHIP) records from 2009 to 2020. We employed inverse probability weighting with regression adjustment to estimate differences in cumulative costs and OHIP billings between those reporting exposure to IPV during the survey and those who did not. Our sample included 1,094 women, with 38.12 % reporting IPV exposure via the Hurt, Insult, Threaten, Scream scale. Findings show a significant public healthcare burden due to IPV: women reporting IPV in 2009 had an average of 17 % higher healthcare costs and 41 additional OHIP billings (0.1732;95 % CI: 0.0578-0.2886; 41.23;95 % CI: 12.63-69.82). Policies prioritizing primary prevention and integration of trauma-informed care among healthcare providers are vital to alleviate the long-term burden on public health systems.

Experiences of intimate partner violence and antepartum depression among women seeking antenatal care in Addis Ababa, Ethiopia: findings from the MISPOD study

Despite the high prevalence of intimate partner violence (IPV) and antepartum depression, there is limited evidence on the association between the two in Ethiopia. We aimed to investigate the association between experience of IPV during and before pregnancy and depression in the third trimester of pregnancy. We surveyed women attending antenatal care clinics in 22 selected health facilities in Addis Ababa in the third trimester of pregnancy. We used a 12-item tool to measure IPV and the Edinburgh Postnatal Depression Scale (EDPS) to measure antepartum depression. We performed multivariable logistic regression analysis to determine the association between IPV and antepartum depression. Of the 399 women included, 14.5% (95% CI: 11.3-18.5%) had symptoms suggestive of antepartum depression (EDPS score ≥ 11) and 31.6% (95% CI: 27.1-36.4%) had recently experienced some form of IPV. The adjusted odds of antepartum depression was 2.24 higher among women who had experienced IPV compared to those who had not (95% CI: 1.11-4.54). Antepartum depression was higher among women aged 15-24 compared to those aged 25-34 (AOR = 2.76, 95% CI: 1.05, 7.23), women with low maternal social support compared to those with adequate support (AOR = 7.04, 95% CI: 2.07, 23.97), and women who worried very often about feeding their family compared to those who did not worry at all (AOR = 8.95, 95% CI: 3.09, 25.94). The findings highlight the need for integrated and tailored interventions to mitigate IPV and antepartum depression to address the needs of adolescent and young women, and those living in poverty or lacking social support.

Intimate partner violence during pregnancy and its association with pregnancy and childbirth complications: A prospective cohort study

Intimate partner violence (IPV) during pregnancy increases the risk of adverse outcomes for both the woman and foetus. However, there is limited research on its scope and impact in many sub-Saharan African countries. In this study, we investigated the effects of IPV during pregnancy on pregnancy and childbirth complications in Ethiopia. Prospective, longitudinal data from the Performance Monitoring for Action Ethiopia (PMA Ethiopia) Cohort 1 study covering a sample of 2635 women followed up until one year postpartum was used for analysis. Information on IPV during pregnancy and obstetric complications were collected from women at six-week follow-up visits. Multivariable log-binomial regression estimated the risk of antepartum, intrapartum, and postpartum complications associated with IPV of any type, physical IPV and sexual IPV during pregnancy. The prevalence of any IPV type was 13%, only physical IPV was 4.6%, and only sexual IPV was 7.1%. Physical IPV was associated with an increased risk of worsening vision at night during pregnancy (adjusted relative risk [aRR]=2.47, 95% Confidence Interval [95%CI]=1.46 - 4.77), intrapartum haemorrhage (aRR=1.65, 95%CI=1.11 - 2.46), and intrapartum convulsion (aRR=1.98, 95%CI=1.34 - 2.94). Sexual IPV was associated with increased risk for antepartum convulsion (aRR=1.93, 95%CI=1.07 - 3.48), leaked/ruptured membrane (aRR=2.86, 95%CI=1.59 - 5.14), malpresentation (aRR=2.37, 95%CI=1.17 - 4.80), intrapartum convulsions (aRR=1.86, 95%CI=1.16 - 2.98), postpartum haemorrhage (aRR=1.68, 95%CI=1.18 - 2.40) and fever with foul discharge (aRR=2.03, 95%CI=1.40 - 2.93). Overall, the experience of any IPV type increased the risk for the above in addition to migraine, postpartum convulsion, and abnormal vaginal discharge. There is a need to embed IPV sensitisation campaigns in maternal health policies and interventions and to empower women to report cases for timely intervention.

Dating Violence, Lifestyle and Risk of Type 2 Diabetes in Mexican Women University Students

BACKGROUND

Dating violence is a prevalent issue among Mexican women, as is the incidence and prevalence of Type 2 diabetes mellitus (T2DM). The effects of dating violence can negatively impact lifestyle and, consequently, increase the risk of T2DM.

OBJECTIVE

This study aimed to explore the influence of dating violence on lifestyle and the risk of T2DM in women university students from Mexico.

METHODS

The study employed a cross-sectional and correlational design. The study population consisted of women university students. The sample size included 255 participants. Women aged 18 to 39 with current dating relationships and residency in Mexicali, Baja California, Mexico, were included. Data collection was conducted from February to May 2023. Correlations and multiple linear regression models were conducted.

RESULTS

A total of 255 women participated, with an average age of 21.6 years (SD = 3.2), and 32.2% had a history of intrafamily violence during childhood. 58.8% of the participants exhibited some level of risk of T2DM, and 56.7% of the lifestyle was mostly categorized as poor/fair. Detachment was the most prevalent type of dating violence, followed by coercion. Dating violence was correlated with lifestyle (r = -.430) and the risk of T2DM (r = .321). In the multiple linear regression model, dating violence influenced the risk of T2DM.

CONCLUSION

Women who reported higher levels of dating violence have a less healthy lifestyle and a greater risk of T2DM. It is important to consider dating violence to improve lifestyle and prevent T2DM in Mexican women university students.

Intimate Partner Violence and Subsequent Depression in Women: A Systematic Review and Meta-Analysis of Longitudinal Studies

INTRODUCTION

Intimate partner violence (IPV) and depression are global health concerns with high prevalence rates and substantial negative impacts on individuals and the wider community. Women are particularly vulnerable to both IPV victimization and depressive disorders, and both are recognized worldwide as priorities for women's health. The aim of this systematic review and meta-analysis was to determine whether recent longitudinal empirical evidence supports exposure to IPV as a contributing factor to the subsequent onset of depression in women.

METHODS

A search was performed in August 2024 of the Medline, PsychInfo, and EBSCOHost databases for longitudinal studies published after the year 2013, and 1193 studies were identified. Studies were included if they were written in English and measured IPV as an independent variable with depression as a dependent variable. Studies were excluded if depression was not measured separately from other variables or did not report primary quantitative data. Eleven studies with 118,544 female participants met the inclusion criteria for review.

RESULTS

Ten of the 11 reviewed studies reported a statistically significant positive association between exposure to IPV and depression in women. A random effects meta-analysis was used to generate pooled odds ratios from nine estimates, which demonstrated that female IPV survivors have significantly increased odds of developing subsequent depression (OR = 1.92, (95% CI: 1.28, 2.86); although, there was high heterogeneity across studies (I2 = 98.3%, p < 0.001). Ten of the 11 studies were from high-income, industrialized countries, which limits the global application of these findings.

CONCLUSIONS

These findings suggest that IPV may be one of many contributing factors for depression in women. However, variability in the definition of IPV and inconsistent adjustment for confounders across studies limits firm conclusions. The findings of this review suggest that strategies to prevent IPV could play a role in reducing the prevalence of depression. They also support the inclusion of depression screening for survivors of IPV in clinical approaches and a review of the effectiveness of IPV-related depression intervention strategies.

Association Between Lifetime Interpersonal Violence and Post-COVID-19 Condition Among Women in Kentucky, 2020-2022

OBJECTIVE

The COVID-19 pandemic increased the risk of interpersonal violence. We investigated the association between lifetime interpersonal violence experience and risk of post-COVID-19 condition (the persistence of symptoms of COVID-19 and severity of health problems associated with COVID-19 that last a few weeks, months, or years) among women with lifetime interpersonal violence experience.

METHODS

Women participants aged ≥18 years in Kentucky's Wellness, Health & You-COVID-19 study completed online quantitative surveys about the impacts of the pandemic, developing COVID-19, and symptoms of post-COVID-19 condition. We conducted cross-sectional analyses estimating rate ratios of developing COVID-19 and symptoms of post-COVID-19 condition during the pandemic (October 13, 2020-February 28, 2022).

RESULTS

Of the analytic sample (N = 938), 342 (36.5%) disclosed a history of lifetime interpersonal violence. Compared with women with no lifetime interpersonal violence experience, women with lifetime interpersonal violence experience had significantly more distress because of the pandemic, defined as family financial challenges (P = .001), symptoms of mental health challenges (P < .001), and negative coping behaviors (P < .001). While experiencing lifetime interpersonal violence was not significantly associated with either receiving COVID-19 vaccinations (adjusted rate ratio [aRR] = 1.10; 95% CI, 0.75-1.61) or developing COVID-19 (aRR = 1.15; 95% CI, 0.92-1.44), experiencing lifetime interpersonal violence was associated with an increased rate of developing symptoms of post-COVID-19 condition (aRR = 2.09; 95% CI, 1.19-3.65).

CONCLUSION

Symptoms of post-COVID-19 condition may be linked to lifetime interpersonal violence experience, possibly through stress or violence-associated trauma. Future research is needed to assess the negative effects of the pandemic, prioritizing people with lifetime interpersonal violence experience.

A Systematic Review of Theories of Stress as a Predictor of Intimate Partner Violence

Literature on stress and intimate partner violence (IPV) has primarily focused on stress as an outcome of women's experience of IPV. However, stress may also be a predictor of male-perpetrated IPV. To improve our understanding of how theoretical approaches to stress have been applied to IPV research, we conducted a sub-analysis of a broader systematic review to identify published literature that examines theoretical approaches to stress as a predictor of male-perpetrated IPV. We conducted a search of nine electronic databases and assessed title/abstract and full texts according to pre-defined inclusion and exclusion criteria. Two reviewers categorized included studies into different theoretical groupings and sub-groupings. Data were extracted according to a data extraction template developed for the review, establishing consistency in a pilot data extraction phase. The review identified 27 articles that addressed the following theories of stress: general stress theory, life course theory, occupational stress theory, vulnerability theory, and family stress theory. Each of these sub-theories focuses on different forms of stress, for example, life course theory specifically focuses on stressful early life experiences, including adverse childhood events, whereas occupational stress theory focuses on workplace-related stressors that may result in increased male-perpetrated IPV. Analysis of measurement of stress variables indicated that measurement of stress varies widely across studies and primarily relies on self-reports. Consideration of stress as a predictor of IPV provides important insights into preventable and modifiable targets for intervention. Additional research on mechanisms and pathways between stress and IPV is needed.

Intimate Partner Violence During Lockdown: The Potent Influence of Stress and Authoritarian Beliefs

COVID-19 pandemic caused several lockdowns in most countries, enclosing together perpetrators and victims of intimate partner violence (IPV). Our study investigates psychological mechanisms associated with IPV. We supposed that stress provoked by the pandemic, as well as adhering to authoritarian beliefs will be a predictor of IPV. Using an online questionnaire, 1,659 individuals indicated whether they had been victim or witnessed IPV at home and filled a perceived stress scale, anxiety, depression, and aggressiveness scales. They were also asked to fill an authoritarianism scale, how they cope with the lockdown situations, and some demographical information. We found that individuals who were victims or witnesses of IPV during the COVID-19 lockdowns tended to have more difficulty isolating at home or to hold stronger authoritarian beliefs. Importantly, the association between authoritarian beliefs and IPV was moderated by perceived stress, suggesting that individuals who hold authoritarian views may be more affected by stress, which could increase the risk of experiencing or witnessing IPV. IPV incidents during the pandemic lockdowns may be partially explained by perceived stress, which is amplified by authoritarian attitudes. Further discussions on the causes of IPV and interventions are suggested.

Trauma-Informed Yoga: A Capacity Building and Wellness Strengthening Intervention for Female Survivors of Intimate Partner Violence and Affiliative Staff

This evaluation examines the impacts of Exhale to Inhale's trauma-informed yoga (TIY) on stress, somatic complaints, and self-efficacy among female survivors of intimate partner violence (IPV) and affiliated staff in community-based domestic violence agencies. A two-phase study design was employed, the first of which collected data from in-person group classes and the second from remotely taught classes due to COVID-19 safety restrictions. Collected over 3 years, 526 female survivors (n = 361) and staff (n = 165) from 66 domestic violence agencies completed surveys revealing improved stress, somatic complaints, and self-efficacy following a single TIY session. TIY serves as a capacity-building intervention that is suitable and adaptable for survivors of IPV and the staff at domestic violence agencies.

Association of Daily Activities With Maternal-Child Bonding, Parenting Self-Efficacy, Social Support, and Parenting Behaviors Among Survivors Living in an Intimate Partner Violence Shelter: A Daily Diary Study

Following a traumatic event such as intimate partner violence (IPV), survivors often experience stress related to the violence. These high levels of stress related to IPV can be associated with the daily activities of survivors and their relationships with their children, such as maternal-child bonding. The purpose of the current study is to explore the relationship between daily activities, daily stress levels, parenting self-efficacy and behaviors, and maternal-child bonding among survivors living in an IPV shelter using an ecological momentary assessment (EMA) methodology. Twenty-five mothers living in an IPV shelter in two states in the Southern United States completed a baseline survey and completed electronic daily diaries for 14 days. Higher daily stress was associated with the number of times the mothers met with the case manager. Higher daily stress was also related to lower parenting self-efficacy. The number of case management appointments and legal appointments were positively correlated with a higher bonding score. More social support was associated with more positive parenting. IPV and post-traumatic stress disorder symptoms were not significantly associated with maternal-child bonding, parenting behaviors, or parenting self-efficacy. Findings suggest that screening for maternal support may be particularly important for positive bonding and positive parenting. Findings also lend preliminary insight into practical places where service providers could act to protect the bonding process or mitigate risks to impede it. Future research should include objective data about the mother's emotions and her interactive behavior with her child. There is also a need to consider how federal programs fund and incentivize service providers to focus on mother-child dyads and how they can tailor services that promote bonding.

Trajectories of intimate partner violence and their relationship to stress among young women in South Africa: An HPTN 068 study

BACKGROUND

One in four South African women will experience intimate partner violence (IPV) in their lifetime, potentially increasing their biological stress. In South Africa, limited IPV and stress research has utilized multiple timepoints or examined modifying factors. Cash transfers (CTs) are associated with reduced IPV and stress and may be an intervention target.

AIMS

We used data-driven methods to identify longitudinal IPV trajectory groups among South African adolescent girls and young women (AGYW), estimate each group's association with stress, and assess modification by a CT.

METHODS

A total of 2,183 South African AGYW ages 13 to 24 years from the HIV Prevention Trials Network 068 study were randomized to a CT or control group. Physical IPV was measured five times (2011-2017), and stress was captured once (2018-2019). Stress measures included the Cohen Stress Scale and stress biomarkers (C-reactive protein (CRP), cytomegalovirus (CMV), herpes simplex virus type-1 (HSV-1)). Group-based trajectory modeling identified IPV trajectories; ordinal logistic regression estimated the association between trajectory group and stress.

RESULTS

A two-group quadratic trajectory model was identified (higher trajectory group = 26.7% of AGYW; lower trajectory group = 73.3%). In both groups, the probability of IPV increased from ages 13 to 17 years before declining in early adulthood. However, the higher group's probability peaked later and declined gradually. The higher trajectory group was associated with an increased odds of elevated CRP (OR: 1.41, 95% CI [1.11, 1.80]), but not with other stress measures. The CT modified the relationship with CMV: a positive association was observed among the usual care arm (OR: 1.59, 95% CI [1.11, 2.28]) but not the CT arm (OR: 0.85, 95% CI [0.61, 1.19]).

CONCLUSIONS

Sustained IPV risk during adolescence was associated with elevated CRP in young adulthood. The relationship between IPV and elevated CMV was attenuated among those receiving a CT, suggesting that CTs could possibly reduce biological stress due to IPV.

Prevalence and risk factors of intimate partner violence during the COVID-19 pandemic: Results from the population-based study DREAMCORONA

OBJECTIVES

This study examines the 12-month prevalence rates of intimate partner violence (IPV) victimization, including psychological, physical, and sexual forms, in women and men. It also aims to identify changes in IPV victimization during the COVID-19 pandemic and to explore factors associated with the occurrence of any IPV victimization during this period.

METHODS

Data from the DREAMCORONA study in Germany collected from May 2020 to February 2021 included 737 participants, i.e., (expectant) mothers (64%) and fathers (36%). The Revised Conflict Tactics Scale (CTS2S) short form was used to assess the 12-month IPV victimization. Prevalence of IPV victimization as well as changes in IPV victimization during the pandemic were analyzed descriptively, with results stratified by sex. Multiple logistic regression was employed to identify risk factors for IPV.

RESULTS

Psychological IPV was found to be the most prevalent form of violence, with the occurrence of any psychological IPV affecting 48.5% of women and 39.4% of men, while 2.6% of women and 3.3% of men reported the occurrence of any physical IPV victimization, and 2.8% of women and 1.5% of men reported the occurrence of any sexual IPV victimization. Of those who experienced the occurrence of any IPV in the last 12 months, 89.7% of women and 89.8% of men were victimized by one single act of violence. The majority of affected participants reported no change in psychological and physical IPV victimization during the pandemic. Nevertheless, for certain IPV behaviors on the psychological and physical IPV victimization subscales, both affected women and men also reported higher frequencies during the COVID-19 pandemic. Multiple logistic regression revealed that higher levels of relationship satisfaction were negatively associated with the occurrence of any IPV victimization for women and men, whereas greater levels of own anger-hostility symptoms were positively associated with the occurrence of any IPV victimization.

CONCLUSIONS

Psychological IPV was present in almost every second (expectant) couple. The majority of affected women and men reported no change in their psychological and physical IPV victimization, suggesting that they continued to experience IPV during the pandemic. This underlines the importance of promoting healthier relationship dynamics, coping strategies, and emotional well-being to reduce the risk of IPV, even in times of crisis. Our study sheds light on the early stages of the pandemic and highlights the ongoing need for research into the temporal dynamics of IPV.

Impact of physical and sexual abuse on risk of hospitalisations for physical and mental illnesses: insights from two large prospective cohort studies

Background

Physical abuse can lead to severe health consequences that extend beyond immediate harm. We explored the associations of physical abuse experienced during childhood and adulthood with a wide range of adult health conditions requiring hospital treatment.

Methods

We utilised data from a sub-cohort of 157,366 UK Biobank participants (46.4% of the baseline population; age range 45-81; 89,101 women) and repeated analyses in an independent population of 85,929 adults from the Finnish Public Sector (FPS) study (age range 17-78; 68,544 women). Participants in both cohorts reported instances of physical and sexual abuse at study baseline. Follow-up included 77 common health conditions ascertained from linkage data to national hospital and mortality registries.

Findings

Mean follow-up duration was 4.6 years (SD 0.14) in UK Biobank and 10.6 years (4.3) in FPS. Physical and sexual abuse was associated with 22 mental and physical health conditions. After multivariable adjustments, participants who experienced abuse during both early and later stages of life had a 2.12- (95% confidence interval 1.39-3.23) to 3.37-fold (1.52-7.45) increased risk of mental and behavioural disorders, a 1.46 (1.20-1.79) to 1.83 (1.05-3.20) times increased risk of metabolic, haematologic, and respiratory diseases, and a 1.24 (1.07-1.45) times higher risk of inflammatory diseases compared with non-exposed participants. The absolute risk difference between these groups was greatest for metabolic and haematologic conditions (rate 381 and risk difference 160 per 100,000 person-years). Frailty, comorbidities, and competing risk of death did not modify these associations, but the possibility of bias or residual confounding cannot be excluded.

Interpretation

Repeated exposure to physical and sexual abuse amplifies the risk of hospitalisations from mental disorders and physical diseases spanning diverse organ systems. Addressing this issue may necessitate multifaceted strategies, including shifts in societal norms, legal measures, and increased healthcare provision for affected individuals and their families.

Funding

Wellcome Trust, UK Medical Research Council, U.S. National Institute on Aging, Academy of Finland.

"There's room to do more": a mixed-methods study of the Temporary Assistance for Needy Families (TANF) diversion program and intimate partner violence in Georgia

Introduction

Intimate partner violence (IPV) is a risk factor for homicides and suicides. As poverty is both a predictor and a consequence of IPV, interventions that alleviate poverty-related stressors could mitigate IPV-related harms. Temporary Assistance for Needy Families (TANF), a monthly cash assistance program, is one such potential intervention. In the state of Georgia, the TANF diversion program, which provides a non-recurrent lump-sum payment to deter individuals from monthly TANF benefits, is an understudied component of TANF that may influence the effectiveness of state TANF programs in supporting IPV survivors.

Aim

This study quantifies and qualifies the role of Georgia's TANF diversion program in shaping IPV-related mortality.

Methods

This study relies on a mixed-methods sequential explanatory design. Using data from the Georgia Violent Death Reporting System (GA-VDRS), an interrupted time series analysis was conducted to estimate the effect of TANF diversion on IPV-related homicides and suicides. Semi-structured interviews were then administered with TANF policy experts and advocates, welfare caseworkers, and benefit recipients (n = 20) to contextualize the quantitative findings.

Results

The interrupted time series analysis revealed three fewer IPV-related deaths per month after implementing TANF diversion, compared to pre-diversion forecasts (coefficient = -3.003, 95%CI [-5.474, -0.532]). However, the qualitative interviews illustrated three themes regarding TANF diversion: (1) it is a "band-aid" solution to the access barriers associated with TANF, (2) it provides short-term relief to recipients making hard choices, and (3) its limitations reveal avenues for policy change.

Discussion

While diversion has the potential to reduce deaths from IPV, it may be an insufficient means of mitigating the poverty-related contributors to IPV harms. Its limitations unveil the need for improved programs to better support IPV survivors.

Epigenetic changes produced in women victims of intimate partner violence: A systematic review

BACKGROUND

Intimate partner violence (IPV) is a prevalent form of violence against women that encompasses physical, sexual, and emotional abuse, as well as controlling behaviors by intimate partners, and predisposes the victims to multiple diseases.

OBJECTIVE

This systematic review aims to identify epigenetic marks associated with IPV and the resultant stress experienced by victims.

DESIGN

This study is a systematic review conducted according to the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) 2020 guidelines. The review includes a comprehensive search and analysis of relevant literature to identify epigenetic changes associated with IPV.

DATA SOURCES AND METHODS

A systematic search was conducted across four databases: PubMed, Scopus, Web of Science, and ProQuest, using keywords related to IPV and epigenetics. The inclusion criteria were studies published in scientific journals with an experimental approach, focused on female survivors of gender-based violence, and providing information on epigenetic changes. The review included studies published up to June 15, 2024, with no time limits imposed, focusing on female victims of IPV. The inclusion criteria were studies published in scientific journals with an experimental approach, focused on female survivors of gender-based violence, and providing information on epigenetic changes.

RESULTS

The results revealed that epigenetic changes associated with IPV predominantly affect genes related to the glucocorticoid receptor, insulin-like growth factors, BDNF, and CPLX genes. These observations suggest that IPV is linked to significant epigenetic modifications in both victims and their offspring.

CONCLUSION

It is concluded that IPV is associated with epigenetic changes both in the woman and in her offspring. These findings underscore the importance of understanding the biological embedding of IPV through epigenetic research to better address the long-term health consequences for women. However, more studies are necessary to validate these results.

Mental and Physical Health Correlates for Emotional Intimate Partner Violence Perpetration and Victimization: A Meta-Analysis

Approximately 50% of both men and women will experience emotional intimate partner violence (IPV) in their lifetime-a form of violence highly associated with other forms of IPV-making it important to develop further understanding of for assessment and treatment purposes. The bio-psycho-social model was used to guide the study. Utilizing data from 181 studies, yielding 348 effect sizes, we conducted a meta-analysis examining mental and physical health correlates with emotional IPV perpetration and victimization. We also examined if mental and physical health correlates were significantly stronger for emotional IPV perpetration or victimization, as well as if correlates were stronger for men or women. Suicidal ideation, post-traumatic stress, anxiety, depressive symptoms, borderline personality disorder (PD), psychological distress, physical pain, trauma, anger, shame, poor physical health, antisocial PD, and somatic symptoms were significantly associated with emotional IPV victimization. Borderline PD, narcissism, emotional dysregulation, anger, post-traumatic stress, antisocial PD, psychopathy, depressive symptoms, anxiety symptoms, and trauma were significantly associated with emotional IPV perpetration. Anger, emotional dysregulation, and psychopathology were stronger correlates for emotional IPV perpetration compared to victimization, and post-traumatic stress disorder (PTSD) and psychological distress were stronger correlates for victimization. PTSD and suicidal ideation were stronger correlates of IPV victimization for women than men, and anger was a significantly stronger correlate of IPV perpetration for women than men. This study highlights the importance of a holistic approach when working with victims and perpetrators of IPV, focusing on the importance of taking all aspects of the bio-psycho-social model into account.

Association between perceived stress and history of intimate partner violence throughout life and during the COVID-19 pandemic

Introduction

Intimate Partner Violence (IPV) is a significant public health issue, characterized by being a highly stressful experience for its victims. The relationship between IPV and stress creates a harmful cycle with broad health implications, affecting individuals and society at large. Despite its significance, there's a noticeable lack of research on this topic, especially regarding IPV throughout one's life and during the pandemic.

Objective

To verify the association between perceived stress and the history of intimate partner violence throughout life and during the COVID-19 pandemic.

Materials and methods

Analytical cross-sectional epidemiological study with a sample of 1,086 women. Sociodemographic information and violence history, assessed using the World Health Organization Violence Against Women (WHO VAW STUDY), along with perceived stress measured by the short version of the Perceived Stress Scale (PSS), were collected. The sampling process unfolded through multiple stages. For bivariate analyses, the t-test and ANOVA were performed, whereas for multivariate analyses simple and multiple linear regression were performed. The software Stata® version 15.1 and R® were used.

Results

Women who reported having suffered intimate partner violence throughout their lives had higher means of stress (18.49), with an average increase of 4 points without adjustments and 3.5 points after adjustments for sociodemographic variables. Similarly, during the COVID-19 pandemic (19.01), stress increased by an average of 3.3 points, which was reduced to 2.8 points after adjustments.

Conclusion

The results indicate an association between intimate partner violence and an increase in women's perceived stress, both throughout life and during the pandemic. The importance of preventive approaches, promoting gender equality and preventing IPV from the early stages of life is highlighted. In addition, they underscore the urgency of evidence-based interventions of a comprehensive nature to deal with this complex issue in a careful and effective manner. The cross-sectional nature of this study limits the inference of causality, and an additional limitation is acknowledged concerning information bias. This bias relates to the multifaceted issues surrounding the concept of violence, potentially influencing the accuracy of participants' information and complicating the measurement of violence.

Prenatal maternal stress is associated with site-specific and age acceleration changes in maternal and newborn DNA methylation

Prenatal maternal stress has a negative impact on child health but the mechanisms through which maternal stress affects child health are unclear. Epigenetic variation, such as DNA methylation, is a likely mechanistic candidate as DNA methylation is sensitive to environmental insults and can regulate long-term changes in gene expression. We recruited 155 mother-newborn dyads in the Democratic Republic of Congo to investigate the effects of maternal stress on DNA methylation in mothers and newborns. We used four measures of maternal stress to capture a range of stressful experiences: general trauma, sexual trauma, war trauma, and chronic stress. We identified differentially methylated positions (DMPs) associated with general trauma, sexual trauma, and war trauma in both mothers and newborns. No DMPs were associated with chronic stress. Sexual trauma was positively associated with epigenetic age acceleration across several epigenetic clocks in mothers. General trauma and war trauma were positively associated with newborn epigenetic age acceleration using the extrinsic epigenetic age clock. We tested the top DMPs for enrichment of DNase I hypersensitive sites (DHS) and found no enrichment in mothers. In newborns, top DMPs associated with war trauma were enriched for DHS in embryonic and foetal cell types. Finally, one of the top DMPs associated with war trauma in newborns also predicted birthweight, completing the cycle from maternal stress to DNA methylation to newborn health outcome. Our results indicate that maternal stress is associated with site-specific changes in DNAm and epigenetic age acceleration in both mothers and newborns.

Blunted neurobiological reactivity and attentional bias to threat underlie stress-related disorders in women survivors of intimate partner violence

BACKGROUND

Intimate partner violence (IPV) alters women's neurobiological stress response systems. We propose that individual differences early in the attentional processing of threats are associated with these neurobiological mechanisms and contribute to mental illness in this population.

METHODS

We assessed attentional bias in relation to threat (AB) in women survivors of IPV (n = 69) and controls (n = 36), and examined overall cortisol secretion using hair cortisol (HC), and stress responsiveness measuring salivary cortisol and α-amylase (sAA) before (T0), and after (T1, T2) an acute psychosocial stress task (Trier Social Stress Test). We used repeated-measures ANCOVAs to explore the associations between Group (IPV, control) and AB with acute stress response, and regression models to examine the associations with mental health symptoms.

RESULTS

There were no between-group differences in HC levels. An interaction between Group and AB was found regarding cortisol reactivity (p < 0.05). IPV women with threat avoidance AB showed a blunted cortisol response compared to controls and to IPV participants with threat vigilance AB. The association between sAA reactivity and the interaction between Group, AB, and time approached significance (p = 0.07), with a trend to lower sAA levels particularly in IPV women with threat avoidance AB. Group and cortisol reactivity were associated with symptoms of depression, generalized anxiety, and post-traumatic stress disorder (8-20% explained variance).

CONCLUSIONS

Threat avoidance AB is associated with blunted acute cortisol response among women exposed to chronic stress (IPV). Experiencing IPV and acute cortisol response appear to be clearly implicated in long-term mental health problems.

Psychometric evaluation of an adapted version of the perceived stress scale for ecological momentary assessment research

Ecological momentary assessment (EMA) methodologies are commonly used to illuminate the predictors and impacts of experiencing subjective stress in the course of daily life. The validity of inferences from this research is contingent on the availability of measures of perceived momentary stress that can provide valid and reliable momentary stress scores. However, studies of the development and validation of such measures have been lacking. In this study, we use an EMA data collection design to examine the within- and between- person reliability and criterion validity and between-person gender measurement invariance of a brief EMA-adapted measure of a widely used trait measure of stress: the Perceived Stress Scale (PSS). Scores showed high internal consistency reliability and significant correlations with a range of criterion validity measures at both the within- and between-person level. Gender measurement invariance up to the scalar level also held for scores. Findings support the use of the EMA-adapted PSS presented in the current study for use in community-ascertained samples to address research questions relating to the influences on and effects of momentary stress and their gender differences.

Social Odour Perception and Stress Responses in Women’s Quality of Partner Relationship and Attachment Style

The perception of body and social odours (SOP) is crucial for interpersonal chemosensory signalling and mate choice, yet little is known about the role of the SOP on the quality of partnerships and the attachment style. The aim of this study was to investigate the role of the SOP in women’s stress responses by considering the role of biopsychosocial variables in the quality of interpersonal relationships (also considering intimate partner violence). In total, 253 women filled out an online survey that included a series of questionnaires to investigate self-perceived stress (PSS), emotional regulation (ERQ), olfactory social assessment (SOS), quality of partnership (RRQ), attachment style (RQ), and the Conflict Tactile Scale 2 (CTS-2). The main results highlight that a high awareness of social odours correlates with a good quality of relationship and with an emotional regulation capacity; the PSS correlates negatively with the ERQ (i.e., as the PSS increases, the ERQ decreases). The level of IPV predicts an interpersonal style characterized by a low desire to develop meaningful relationships but with a tendency to depend on and trust another. The idea of being hurt by the other is not central in women who experience this type of relationship. The study’s main conclusion is that social odour perception is important for emotional regulation and in partner relationships.

Reproductive and sexual health effects of intimate partner violence: A longitudinal and intergenerational analysis

OBJECTIVE

To examine the prevalence, pattern and predictors of sexual and reproductive adversity among Australian women who report intimate partner violence (IPV).

METHODS

Repeat measure design employing two cohorts (born between the years of 1973-78 and 1989-95) from the National Australian Longitudinal Study on Women's Health. Logistic regression was employed to examine the effects of reported IPV exposure on sexual and reproductive outcomes. The analysis conducted throughout 2021-2022 investigated both longitudinal prevalence and outcomes, and the intergenerational differences between these cohorts.

RESULTS

IPV exposure was associated with increased odds of experiencing a range of sexual and reproductive health outcomes, including STI, endometriosis, infertility, termination and miscarriage, which increased with greater exposure to IPV. Our longitudinal results suggest a dose-dependent effect of IPV on STI outcomes. Significant intergenerational trends were also identified in the nature of IPV exposure and dependent outcomes. Sexual orientation had a significant predictive value for IPV, with women who identified as bisexual significantly more likely to report IPV (OR = 2.91, 95% CI).

CONCLUSION

Women who experience IPV are at significant risk of adverse sexual and reproductive outcomes. Healthcare professionals working with women who have diagnosed sexual and reproductive issues should inquire about IPV. Likewise, women who are exposed to IPV should undergo sexual and reproductive healthcare assessments, along with appropriate preventive measures, to assure sexual health. Future research should explore in greater detail the association between IPV and the sexual and reproductive outcomes among sexual minority women.

Mediating role of perceived stress on the association between domestic violence and postpartum depression: cross-sectional study in Bangladesh

BACKGROUND

Postpartum depression (PPD) is a major depressive disorder developed after childbirth that negatively affects the well-being of both mother and infant. The relationship between domestic violence and the development of PPD symptoms is well documented. However, empirical evidence is lacking on how a person's perception of stress mediates this relationship.

AIMS

To estimate the degree to which perceived stress may explain the association between being the victim of domestic violence and developing PPD symptoms among Bangladeshi mothers.

METHOD

A cross-sectional survey design was employed from October to December 2019 to collect data from 497 postpartum mothers within the first 6 months of giving birth. The associations between domestic violence victimisation and developing PPD symptoms were assessed using multivariable logistic regressions. The Karlson-Holm-Breen method was used for mediation analysis.

RESULTS

One-third (34%) of the mothers in this sample reported experiencing PPD within 6 months. A one-item increase in the number of reported experiences ('items') of controlling behaviour, emotional domestic violence and physical domestic violence increased the odds of developing PPD symptoms by 27%, 40% and 31% respectively, after controlling for other variables and mediators. Furthermore, after adjusting for other variables, the mediating effect of perceived stress on the association of controlling behaviour, emotional domestic violence, physical domestic violence and any form of domestic violence with developing PPD symptoms was 45.1%, 43.0%, 31.2% and 37.5% respectively.

CONCLUSIONS

Findings suggest that perceived stress partially mediates the association between domestic violence victimisation and developing PPD symptoms. Understanding these complex relationships may help policymakers to formulate appropriate intervention strategies and support services.

Stressful life events, intimate partner violence, and perceived stress in the postpartum period: longitudinal findings in rural Pakistan

PURPOSE

While the association between intimate partner violence (IPV) and stress is well documented, the directionality of this relationship is unclear. We use an adjusted longitudinal study design to better understand if stressful life events in the home precipitate or exacerbate intimate partner violence (IPV) and if experiences of IPV, in turn, increase levels of perceived stress.

METHODS

Longitudinal data were collected among married women in rural Pakistan at 12 and 24 months postpartum (N = 815). Adjusted Poisson and linear regression models were used to examine stressful life events, past year IPV and severity (number and frequency of violent acts), and perceived stress (Cohen Perceived Stress Scale).

RESULTS

At 12 months postpartum, the prevalence of past year physical, psychological, and sexual IPV was 8.5%, 25.7%, and 25.1%, respectively, with 42.6% experiencing any IPV. After adjustment, stressful life events were associated with a subsequent increased likelihood of all IPV types and increased severity of all but physical IPV. Any past year IPV (versus none) and greater IPV severity were associated with 3.43 (95% CI 2.33-4.52) and 2.57 (95% CI 1.87-3.27) point subsequent increases in perceived stress. Physical, psychological, and sexual IPV and their respective severities were all independently associated with increased perceived stress.

CONCLUSIONS

Among postpartum women in Pakistan, stressful life events increase the likelihood of IPV and, in turn, experiences of IPV increase stress levels. Support to families undergoing stressful circumstances may be critical to reducing women's IPV exposure and resulting elevated stress.

Intimate partner violence: psycho-physio-pathological sequelae for defining a holistic enriched treatment

Intimate partner violence (IPV) is a health priority, which worldwide, mainly affects women. The consequences of IPV include several psychophysiological effects. These range from altered levels of hormones and neurotrophins to difficulties in emotion regulation and cognitive impairment. Mounting evidence from preclinical studies has shown that environmental enrichment, a form of sensory-motor, cognitive, and social stimulation, can induce a wide range of neuroplastic processes in the brain which consistently improve recovery from a wide variety of somatic and psychiatric diseases. To support IPV survivors, it is essential to ensure a safe housing environment, which can serve as a foundation for environmental enrichment-based interventions. However, some concerns have been raised when supportive housing interventions focus on the economic aspects of survivors’ lives instead of the emotional ones. We thus propose a holistic intervention in which supportive housing is integrated with evidenced-based psychotherapies which could constitute an enriched therapeutic approach for IPV survivors.

Factors Influencing the Use of Domestic Violence Restraining Orders in Los Angeles

Domestic violence restraining orders (DVROs), although a widely used legal intervention in preventing future risk of intimate partner violence (IPV), there is a lack of documentation on the facilitators and barriers of utilization of DVROs among IPV survivors in Los Angeles County (LAC). We conducted 19 key informant interviews with various professionals working in domestic violence prevention in LAC. Factors such as survivors' motivation, ease of navigating the legal procedures, and availability of community resources facilitate the use of DVROs. Fear, ambivalence, structural barriers to access DVROs, and issues with the criminal justice system make it harder for survivors to obtain DVROs.

Early Marriage in Adolescence and Risk of High Blood Pressure and High Blood Glucose in Adulthood: Evidence from India

Adolescence, the transition phase to adulthood, is a critical period for physical and psychological development. Disruptions during this period, such as getting married, could result in various adverse short- and long-term health outcomes. This study aimed to assess the differential risk of two common chronic conditions—high blood pressure and high blood glucose—in adult women (20–49 years) who were married during different stages of adolescence (10–19 years) compared to women who were married in their youth (20–24 years). Using the most recent nationally representative data from India, we separately assessed the odds in favor of having the two chronic conditions for women who were married during early (10–14 years), middle (15–17 years), and late (18–19 years) adolescence. We found that an earlier age at marriage during adolescence was associated with a higher risk of chronic conditions later in life. Women who were married during early adolescence were respectively 1.29 and 1.23 times more likely (p < 0.001) to have high blood pressure and high blood glucose compared to women who were married in their youth. These findings highlight the importance of preventing underage marriage among adolescent females to address the risk of downstream chronic health consequences as adults.

The Post-Traumatic Growth Journey of Women Who Have Survived Intimate Partner Violence: A Synthesized Theory Emphasizing Obstacles and Facilitating Factors

Suffering intimate partner violence (IPV) is a devastating personal experience and post-traumatic growth (PTG) is a positive, psychological change in a person, following trauma such as IPV. There is a gap in the literature when it comes to theories on PTG after surviving IPV. The aim of this theory development was to synthesize an approach to understanding the PTG journey of female IPV survivors. According to our theory, their PTG journey includes eight main components: 1. The women's early experience of trauma, 2. The consequences of that trauma, 3. Their experiences of IPV, 4. The consequences of IPV, 5. The facilitating factors to PTG, 6. The hindering factors to PTG, 7. Their experience of PTG, and 8. The lingering effects of IPV. According to our findings, PTG is a real possibility for female IPV survivors, and it is likely to improve their mental health, well-being, and quality of life, as well as that of their children, loved ones, and communities, thereby decreasing the damaging effects of IPV. The theory can be useful for professionals when guiding female survivors of IPV to promote their recovery and healing. Due to the lack of research in this field, additional research is needed to further develop this theory.

Intimate partner violence and asthma in pediatric and adult populations

OBJECTIVE

To evaluate the relationship between intimate partner violence (IPV) and adult and childhood asthma outcomes.

DATA SOURCES

We conducted a systematic literature review using 4 databases (PubMed, Ovid MEDLINE, Ovid Embase, and Ovid PsycINFO) with asthma and IPV-associated terms.

STUDY SELECTIONS

We included published studies, available in English, to October 2021, which included IPV as an exposure and asthma as an outcome. Both adult and pediatric populations were included in the following settings: community, health care, and home.

RESULTS

There were 37 articles identified. There was evidence among multiple studies to support increased prevalence of asthma in adults exposed to IPV and prevalence and incidence in children with parental IPV exposure. There were fewer studies evaluating IPV exposure and adult asthma morbidity, but they found statistically significant associations between IPV and increased rate of asthma exacerbations and worsened asthma control. There was sparse evidence evaluating a relationship between IPV and adult asthma mortality. There were no studies identified evaluating IPV and childhood asthma morbidity or mortality.

CONCLUSION

The association between IPV and increased asthma prevalence, incidence, and worsened morbidity merits recognition and further investigation into potential mechanisms. Health care providers can implement practical strategies to help mitigate the negative effects of IPV on health and asthma. These include addressing potential impactful biopsychosocial factors and comorbidities, implementing routine screening and referrals, and partnering with community advocacy organizations. Given their positions of respect and power in society, health care providers can have lasting impacts on the lives of pediatric and adult patients affected by IPV.

Mobile Phone Apps for Intimate Partner and Sexual Violence Prevention and Response: Systematic Search on App Stores

Background

Since the 2008 advent of the smartphone, more than 180 billion copies of apps have been downloaded from Apple App Store, with more than 2.6 million apps available for Android and 2.2 million apps available for iOS. Many violence prevention and response apps have been developed as part of this app proliferation.

Objective

This study aims to evaluate the prevalence and quality of freely available mobile phone apps targeting intimate partner violence (IPV) and sexual violence (SV) prevention and response.

Methods

We conducted a systematic search of violence prevention and response mobile phone apps freely available in Apple App Store (iOS; March 2016) and Google Play Store (Android; July 2016). Search terms included violence prevention, sexual assault, domestic violence, intimate partner violence, sexual violence, forensic nursing, wife abuse, and rape. Apps were included for review if they were freely available, were available in English, and had a primary purpose of prevention of or response to SV or IPV regardless of app target end users.

Results

Using the Mobile Application Rating Scale (MARS), we evaluated a total of 132 unique apps. The majority of included apps had a primary purpose of sharing information or resources. Included apps were of low-to-moderate quality, with the overall subjective quality mean for the reviewed apps being 2.65 (95% CI 2.58-2.72). Quality scores for each of the 5 MARS categories ranged from 2.80 (engagement) to 4.75 (functionality). An incidental but important finding of our review was the difficulty in searching for apps and the plethora of nonrelated apps that appear when searching for keywords such as “rape” and “domestic violence” that may be harmful to people seeking help.

Conclusions

Although there are a variety of mobile apps available designed to provide information or other services related to SV and IPV, they range greatly in quality. They are also challenging to find, given the current infrastructure of app store searches, keyword prioritization, and highlighting based on user rating. It is important for providers to be aware of these resources and be knowledgeable about how to review and recommend mobile phone apps to patients, when appropriate.

Psychological Trauma in the Context of Intimate Partner Violence: A Concept Analysis

A comprehensive understanding of psychological trauma in the context of intimate partner violence (IPV) is relevant for nurses and other healthcare providers to provide better care for individuals and families confronting this issue. A concept analysis based on Walker and Avant was conducted to fully understand this concept and its impact on physical and mental health. This concept analysis demonstrates that psychological trauma in the IPV context is an intricate multi-faceted concept that can have a significant long-term effect on individuals who have experienced IPV. The concept's attributes, antecedents, and consequences identified in this concept analysis will contribute to guiding practice, research, education, and policy development aimed to address the trauma affecting individuals and families in the context of IPV.

Concentrations of Salivary Cortisol in Victims of Intimate Partner Violence According to the CIRCORT Database

This work analyzes the different levels of salivary cortisol in women from the southwest of Spain that were victims of intimate partner violence (IPV) with respect to a control group, assessing for the first time the different concentrations obtained in relation to a worldwide reference standard provided by the CIRCORT meta-global cortisol database. The clinical sample (N = 24) and the control group (N = 25) had an average of 39.12 years (SD = 12.31) and 39.52 years (SD = 11.74), respectively. Cortisol awakening response (CAR) was determined by defining the area under the curve (AUCi). There were no differences between the CAR data of the two populations F (1, 141) = 1.690, p = 0.196, but there was a highly significant difference in the three sampling days, where the clinical sample exceeded the cortisol levels of the CIRCORT database in the evening as compared to the control group (p = 0.004, p = 0.001 and p = 0.000). Salivary cortisol concentration samples taken in the evening were significantly higher than those standardized in the CIRCORT database, from the women victims of IPV as compared to the control group, showing its usefulness as an effective supportive tool for problems such as those triggered by IPV.

Empowerment, Stress, and Depressive Symptoms Among Female Survivors of Intimate Partner Violence Attending Personal Empowerment Programs

Intimate partner violence (IPV) affects one in three women and can have long-lasting psychological effects, with abuse survivors typically exhibiting elevated stress and depressive symptoms. However, women with greater personal empowerment resources (i.e., self-care, agency, self-efficacy) and who practice relaxation techniques generally exhibit lower stress and depressive symptoms. The present study investigated the effectiveness of Personal Empowerment Programs (PEP) and practicing relaxation techniques in promoting empowerment and lowering stress and depressive symptoms. Ninety women were recruited from PEP classes conducted at domestic violence agencies in Orange County, California. Salivary cortisol and affect were assessed before and after one PEP class. Perceived stress, depressive symptoms, empowerment, and relaxation techniques were also assessed. Practicing relaxation techniques correlated with more empowerment. For women without sexual abuse experiences only, having completed more classes (>5 classes) in the program was associated with greater empowerment, less stress, and fewer depressive symptoms. Implications extend to future studies and interventions for IPV survivors.

Analyzing the relationship between air pollution and various types of crime

Air pollution has a severe impact on human physical and mental health. When the air quality is poor enough to cause respiratory irritation, people tend to stay home and avoid any outdoor activities. In addition, air pollution may cause mental health problems (depression and anxiety) which were associated with high crime risk. Therefore, in this study, it is hypothesized that increasing air pollution level is associated with higher indoor crime rates, but negatively associated with outdoor crime rates because it restricts people's daily outdoor activities. Three types of crimes were used for this analysis: robbery (outdoor crime), domestic violence (indoor crime), and fraud (cybercrime). The results revealed that the geographically and temporally weighted regression (GTWR) model performed best with lower AIC values. In general, in the higher population areas with more severe air pollution, local authorities should allocate more resources, extra police officers, or more training programs to help them prevent domestic violence, rather than focusing on robbery.

Intimate Partner Violence and Adult Asthma Morbidity: A Population-Based Study

BACKGROUND

The etiologies for difficult-to-control asthma are complex and incompletely understood. Intimate partner violence (IPV) is a pervasive problem and may play a role in difficult-to-control asthma. IPV is associated with increased prevalence of asthma. There are no prior studies evaluating IPV's association with adult asthma exacerbations.

OBJECTIVE

This study hypothesized that IPV exposure would be associated with increased asthma exacerbations, higher symptom burden, and poorer asthma control among adults.

METHODS

Analyses are based on 2634 adults who participated in the 2005 Behavioral Risk Factor Surveillance System survey, reported active asthma, and completed the asthma and IPV questions. We used multivariate logistic regression to examine the association of IPV with asthma morbidity outcomes while controlling for the following potential confounders: sex, race, education, health care coverage, smoking status, age, and body mass index.

RESULTS

The prevalence of IPV was 32.4%. IPV was associated with increased odds of an asthma exacerbation (adjusted odds ratio [AOR] = 1.75, 95% confidence interval [CI] = 1.26-2.43), higher symptom burden (AOR = 2.33, 95% CI = 1.53-3.55), and lack of asthma control (AOR = 2.23, 95% CI = 1.22-4.09) when using composite measures for these outcomes. When using single-item measures for outcomes, IPV was also associated with increased asthma-related emergency department or urgent care visits (AOR = 2.35, 95% CI = 1.56-3.54), other urgent provider visits (AOR = 1.84, 95% CI = 1.28-2.64), perceived asthma attacks (AOR = 1.53, 95% CI = 1.12-2.09), limitations (AOR = 2.07, 95% CI = 1.49-2.89), daytime symptoms (AOR = 1.92, 95% CI = 1.35-2.72), and nocturnal awakenings (AOR = 1.88, 95% CI = 1.32-2.69).

CONCLUSIONS

IPV is prevalent in adult asthmatics and consistently and significantly associated with worsened adult asthma morbidity, even after adjusting for key confounders. Further research is needed to more fully understand the mechanisms underlying these relationships.

Health Correlates of Abuse History and Moderating Effect of Parenting Stress for Mothers with Mental Disorders

Parenting stress is common and may lead to worsening health, particularly in the context of other risk factors such as mental disorders or a history of abuse. This study investigated how parenting-related stress impacts the effect of abuse experiences on health among mothers with mental health disorders. Survey data was analyzed from 172 predominantly Hispanic mothers receiving outpatient behavioral health services. Most (80.2%) mothers had experienced abuse. Those reporting childhood abuse had 3.82 greater odds of experiencing abuse in adulthood. Findings demonstrated worse health outcomes among those experiencing abuse in both childhood and adulthood and those with a greater number of abuse experiences. Caregiving load intensified the relationship between abuse and anxiety and sleep disturbance. Parenting self-agency intensified the relationship between abuse and cigarette use. These findings have important implications for mental health nursing practice by identifying parenting-stress as an important target for interventions to improve health among women with histories of abuse and mental health disorders.

Tools for measuring gender equality and women's empowerment (GEWE) indicators in humanitarian settings

BACKGROUND

Effective measurement of Gender Equality and Women's Empowerment (GEWE) is challenging in low and middle-income countries (LMICs), and even more so in humanitarian settings. Conflict, natural disasters, and epidemics may increase gender inequities, but also present an opportunity to address them. This scoping review describes and identifies gaps in the measurement tools, methods, and indicators used to measure GEWE in humanitarian settings, and presents a dashboard that can be used by researchers, organizations and governments to identify GEWE measurement tools.

METHODS

Scientific articles published between January 2004 and November 2019 were identified using Embase, Medline, PsycInfo, CINAHL, Scopus, and PAIS index. Relevant non peer-reviewed literature was downloaded from the websites of humanitarian organizations. Publications on women and/or girls impacted by a humanitarian crisis in a LMIC, within 5 years of data collection, were included. Publications were double-screened in the title/abstract and full-text stages. We used a machine learning software during the title/abstract screening to increase the efficiency of the process. Measurement tools, sampling and data collection methods, gap areas (geographical, topical and contextual), and indicators were catalogued for easy access in an interactive Tableau dashboard.

RESULTS

Our search yielded 27,197 publications and 2396 non peer-reviewed literature reports. One hundred and seventy publications were included in the final review. Extracted indicators were categorized into seven domains: economic, health, human development, leadership, psychological, security and justice, and sociocultural. The vast majority of studies were observational, and over 70% utilized a cross-sectional study design. Thirty-eight toolkits and questionnaires were identified in this review, of which 19 (50%) were designed specifically for humanitarian settings. Sociocultural was the largest domain in number of studies and indicators in this review, with gender-based violence indicators reported in 66% of studies. Indicators of economic, human development and leadership were uncommon in the peer-reviewed literature.

DISCUSSION

While there has been some effort to measure GEWE in conflict-affected and other humanitarian settings, measurement has largely focused on violence and security issues. A more comprehensive framework for measuring GEWE in these settings is needed; objective measurement of women's empowerment and gender equality should be prioritized by organizations providing humanitarian aid.

Sexual Agreements and Intimate Partner Violence Among Male Couples in the U.S.: An Analysis of Dyadic Data

Prior research with male couples has focused on how sexual agreements can influence relationship dynamics, sexual risk taking, and health promoting behaviors. Little is known about the association between sexual agreements and the experience or perpetration of intimate partner violence (IPV) in this population. Our study sought to evaluate these associations using dyadic data from a sample of 386 male couples residing in the U.S. Both partners independently reported on their relationship characteristics, sexual agreements, and specific acts reflecting physical, emotional, controlling, and monitoring IPV in separate surveys. Participants were more likely to have experienced IPV in the past year if they were in a relationship for ≥ 3 years versus < 3 years (aOR = 1.62, 95% CI = 1.03-2.53). Among 278 couples who had formulated sexual agreements, men who concurred with their partners on being in an "open" relationship were less likely to have experienced IPV versus those in a "closed" relationship (aOR = 0.47, 95% CI = 0.25-0.89). However, participants were more likely to have experienced IPV if their partners believed they had previously broken their sexual agreement (aOR = 2.79, 95% CI = 1.03-7.52). The verbal explicitness and duration of sexual agreements were not associated with either experiencing or perpetrating IPV in the past year. However, increasing levels of depressive symptomatology were associated with a greater likelihood of both experiencing and perpetrating IPV. Our findings highlight the need to prioritize dyadic interventions for male couples that focus on skills building around enhancing mutual communication and negotiating sexual agreements to reduce IPV.

Long-term consequences of interpersonal violence experiences on treatment engagement and health status in people living with HIV

OBJECTIVE

To examine the impact of previous interpersonal violence (IPersV) experiences on long-term healthcare engagement and health outcomes in a large Canadian HIV-cohort.

DESIGN

People living with HIV (PLHIV) were screened for IPersV, and their healthcare outcomes over the nine subsequent years were analyzed.

METHODS

A total of 1064 PLHIV were screened for past and present IPersV experiences through semistructured interviews. Follow-up included core treatment engagement (e.g. clinic visits) and health-status variables (HIV viral load, CD4+ T-cell count, mortality, comorbidities), analyzed descriptively and with longitudinal Cox regressions.

RESULTS

At intake, 385 (36%) PLHIV reported past or present IPersV including childhood (n = 224, 21%) or adulthood experiences (n = 161, 15%) and were offered conventional social work support. Over 9 years, individuals with any IPersV experiences were 36% more likely to discontinue care, 81% more likely to experience viremia, 47% more likely to experience a drop in CD4+ cell counts below 200/μl, and 65% more likely to die compared with patients not reporting IPersV (P < 0.05). Outcomes were similar when adjusted for sociodemographic factors. Childhood IPersV in particular was linked to several of the outcomes, with higher rates of discontinuation of care, viremia, and mortality related to mental health/addiction or HIV-related complications.

CONCLUSION

IPersV is associated with an increased risk over time of healthcare discontinuation, poorer long-term HIV-related health outcomes, and increased mortality, especially for patients victimized in childhood. Apart from targeted IPersV screening to initiate conventional supports (e.g. through social work), increased efforts to engage vulnerable populations in their long-term care seems warranted.

Longitudinal association between intimate partner violence and viral suppression during pregnancy and postpartum in South African women

OBJECTIVE

We examined the longitudinal association between women's exposure to intimate partner violence (IPV) and HIV viral load during pregnancy and postpartum.

DESIGN

Secondary analysis of an HIV-positive cohort enrolled during pregnancy at a South African antenatal clinic.

METHODS

Viral load was assessed at 10 study visits and analyzed continuously as log10 copies/ml and suppression at less than 50 copies/ml. IPV was measured at three timepoints using behaviorally specific items. We used multivariate logistic regression to examine the association between IPV and viral suppression, and cross-lagged dynamic panel modeling (DPMs) to estimate the longitudinal association between IPV (lagged by 3-6 months) and log10 viral load.

RESULTS

Of 471 women, 84% were virally suppressed by 6 weeks postpartum and 67% at 12 months postpartum. One-third reported IPV exposure. IPV victimization was not associated with viral suppression at delivery, but was associated with a reduced odds of viral suppression at 12 months postpartum (aOR = 0.48, 95% CI = 0.27-0.85). Findings were robust to sensitivity analyses at different timepoints and clinical cut-points. In DPMs, lagged IPV exposure was associated with higher log10 viral load after controlling for past viral load, duration on ART, age, alcohol use, and gestation at study enrolment. Each standardized increase in IPV intensity was associated with higher log10 viral load (standardized coefficient = 0.12, 95% CI = 0.05-0.23).

CONCLUSION

Although viral suppression was widely achieved during pregnancy, suppression rates declined postpartum in this South African cohort. These data suggest IPV is longitudinally associated with elevated viral load postpartum. Interventions for reducing exposure to IPV are important for the health of women and may improve HIV care and treatment.

Intimate partner violence, circulating glucose, and non-communicable Disease: Adding insult to injury?

Analyzing data from the 2015-2016 Indian Demographic and Health Survey (N = 41,768), we investigate how women's circulating glucose varies with the severity of intimate partner violence (IPV) they have experienced in the last year and how their likelihoods of corresponding noncommunicable diseases vary with IPV severity in their lifetime. Consistent with a physiological stress response, women who have recently experienced severe IPV exhibit higher glucose levels and are more likely to have extremely high levels-forewarning of disease development-than women who have not experienced IPV. Correspondingly, women who have ever experienced severe IPV in their lifetime have 33%-200% higher probabilities of diabetes, heart disease, thyroid disorders, and cancer and are 70% more likely to have any of these diseases and 175% more likely to have multiple than women who have experienced none.

A qualitative examination of alcohol use and IPV among Nepali couples in a violence prevention intervention

Intimate partner violence (IPV) impacts the physical and mental health of one in three women globally, with equally high rates in rural Nepal. The risk of physical violence, stalking, harassment, and homicide between intimate partners increases when alcohol is used by the perpetrator. This study evaluates the impact of Change Starts at Home, a nine-month intervention to prevent IPV in which 360 married couples in the Terai region of Nepal listened to a serial radio drama and engaged in Listening Group Discussions. A sub-sample of 18 couples were selected for individual in-depth interviews that were taken at the end of the intervention and 16 months later. Participants strongly and consistently associated alcohol use with IPV against women in their own and others' relationships. Husbands and wives agreed that men sustained reductions in alcohol use, conflict, and perpetration of IPV, attributed to improvements in communication, conflict resolution, and a reduction in alcohol expenditure following the intervention. The results of this study suggest that integrating programming on alcohol reduction within IPV prevention interventions in the Terai region of Nepal has benefits on couple functioning, alcohol consumption, and IPV perpetration.

Identifying health correlates of intimate partner violence against pregnant women

Purpose

Violence against women during pregnancy is a serious public health concern due to its significant adverse health consequences for both the mother and the baby. This study aims to systematically identify common health problems and synergistic health correlates of intimate partner violence (IPV) that specifically affect pregnant women.

Methods

We mine large-scale electronic health record (EHR) data from the IBM Explorys database to identify health problems that are prevalent in both IPV and pregnancy populations, as well those that are synergistically associated with the presence of IPV during pregnancy. For this purpose, we develop methods that enhance the statistical reliability of identified patterns by constructing confidence intervals that take into account systematic bias and measurement errors in addition to the variance in estimation.

Results

We identify with high confidence 668 and 2750 terms that are respectively prevalent in respectively IPV and pregnancy populations. Of these terms, 279 are common. We also identify 16 synergistic health correlates with high confidence. Our results suggest that mental health, substance abuse, and genitourinary complications are prevalent among pregnant women exposed to IPV. The synergistic terms we identify reveal potential conditions that can be direct consequences of trauma (e.g., tibial fracture), long-term health consequences (e.g., chronic rhinitis), markers associated with the demograhics of affected populations (e.g., acne), and risk factors that potentially increase vulnerability during pregnancy (e.g., disorders of attention and motor control).

Conclusions

Our results indicate that IPV significantly affects the well-being of pregnant women in multiple ways. The findings of this study can be useful for screening of IPV in pregnant women. Finally, the methodology presented here can also be useful for investigating the synergy between other medical conditions using EHR databases with privacy constraints.

Violencia de género y trastorno de estrés postraumático en mujeres peruanas

Se realizó un estudio descriptivo correlacional de corte transversal, que planteó determinar la asociación entre la violencia de género y el trastorno de estrés postraumático en mujeres peruanas. La muestra estuvo constituida por 105 mujeres que se atendieron en la División de Medicina Legal II de la provincia del Santa (Perú). Para recolección de la información se utilizaron dos instrumentos que fueron sometidos a validez y confiabilidad, la violencia de género se midió mediante un cuestionario constituido por 20 ítems, y el trastorno por estrés postraumático por un cuestionario de 16 ítems. Los resultados evidencian que el 56,2% de mujeres agredidas presentan violencia leve y el 61,9% no presentan síntomas de trastorno de estrés postraumático. Finalmente, se encontró alta asociación significativa entre la violencia de género y los trastornos de estrés postraumático.

Adaptability to acute stress among women survivors of intimate partner violence: protocol for a mixed-methods cross-sectional study in a laboratory setting (BRAW study)

INTRODUCTION

Intimate partner violence (IPV) is the most common and alarming form of violence against women, affecting around 30% of all women around the world. Using an integrative methodology, we approach IPV as a form of chronic exposure to severe stress that alters the stress-response system of exposed women. The aim of this study is to test the hypothesis that sustained exposure to IPV in women confers a vulnerability-to-stress profile characterised by higher neuroendocrine and behavioural responsiveness associated with a selective attentional processing bias towards threat.

METHODS AND ANALYSIS

Women between 21 and 50 years old from the area of Barcelona (Spain) will be invited to participate. A sample of 82 women exposed to IPV and 41 women not exposed to IPV will be included and assessed for attentional bias and response to acute stress in a laboratory condition (the Trier Social Stress Task). The study will include quantitative and qualitative measures of cognitive performance, neuroendocrine activity and face-to-face interviews to obtain an integrative description of the stress-response profile of these women. Results are expected to help build resilience strategies with a long-lasting impression on women's healthy functioning.

ETHICS AND DISSEMINATION

The study has obtained the approval of the local Ethics Committee ('Comité de Ética de Investigación Parc Taulí de Sabadell'; 2 018 551 V.1.2 June 2018). Besides the communication of results in peer-reviewed papers and scientific congresses, the project will inform guidelines and recommendations through policy-dialogues and workshops with relevant regional and national representatives for future work and prevention strategies. Participants will be invited to be an active part in the dissemination strategy focussed on raising awareness of coping limitations and abilities that women themselves will be able to identify throughout the study.

TRIAL REGISTRATION DETAILS

The study has been registered at the ClinicalTrails.gov database (Identifier number: NCT03623555; Pre-results).

Do Negative Emotional States Play a Role in the Association Between Intimate Partner Violence and Poor Health-Related Quality of Life in Chinese Women From Low-Income Families?

A cross-sectional analysis of a dataset of 156 participants in a health assessment program explored whether negative emotional states mediated the association between intimate partner violence (IPV) and health-related quality of life (HRQoL). Compared with IPV screen-negative participants, those who screened positive had significantly lower HRQoL and significantly higher levels of depression, anxiety, and stress. The inverse associations between the presence of IPV and HRQoL were found to be mediated by depression, anxiety, and stress. Therefore, interventions to alleviate negative emotions in women suffering from IPV have the potential to be useful in improving their HRQoL.