How to measure prenatal stress? A systematic review of psychometric instruments to assess psychosocial stress during pregnancy

The Effect of Benson Relaxation Technique on Stress, Anxiety, and Depression in Pregnant Women

Relaxation programs can be effective in establishing psychological tranquility for maternal and fetal health. This study was conducted to evaluate the effect of this low-cost, effective, easy method on the stress, anxiety, and depression in pregnant women. This randomized clinical trial study was conducted from July 2015 to July 2016. Seventy pregnant women in the third trimester of pregnancy were included in this study. Participants were randomly assigned to 2 groups of 35 subjects using a random number table. Participants in group 1 received relaxation training and group 2 received routine care. A demographic questionnaire and Depression, Anxiety, and Stress Scale (DASS-21) were completed before and 1 and 2 months after the intervention. The SPSS software version 18 was used for data analysis. There were significant differences in the mean difference of the total DASS score (14; 95% confidence interval [CI]: 4 to 32) as well as the scores of stress (4; 95% CI : 1 to 10), anxiety (6; 95% CI: 2 to 10), and depression (6; 95% CI: 2 to 12) 2 months after the intervention between the 2 groups. The Benson relaxation technique decreased DASS-21 scores in the intervention group.

Stress and anxiety during pregnancy and length of gestation: a federated study using data from five Canadian and European birth cohorts

While its etiology is not fully elucidated, preterm birth represents a major public health concern as it is the leading cause of child mortality and morbidity. Stress is one of the most common perinatal conditions and may increase the risk of preterm birth. In this paper we aimed to investigate the association of maternal perceived stress and anxiety with length of gestation. We used harmonized data from five birth cohorts from Canada, France, and Norway. A total of 5297 pregnancies of singletons were included in the analysis of perceived stress and gestational duration, and 55,775 pregnancies for anxiety. Federated analyses were performed through the DataSHIELD platform using Cox regression models within intervals of gestational age. The models were fit for each cohort separately, and the cohort-specific results were combined using random effects study-level meta-analysis. Moderate and high levels of perceived stress during pregnancy were associated with a shorter length of gestation in the very/moderately preterm interval [moderate: hazard ratio (HR) 1.92 (95%CI 0.83, 4.48); high: 2.04 (95%CI 0.77, 5.37)], albeit not statistically significant. No association was found for the other intervals. Anxiety was associated with gestational duration in the very/moderately preterm interval [1.66 (95%CI 1.32, 2.08)], and in the early term interval [1.15 (95%CI 1.08, 1.23)]. Our findings suggest that perceived stress and anxiety are associated with an increased risk of earlier birth, but only in the earliest gestational ages. We also found an association in the early term period for anxiety, but the result was only driven by the largest cohort, which collected information the latest in pregnancy. This raised a potential issue of reverse causality as anxiety later in pregnancy could be due to concerns about early signs of a possible preterm birth.

Independent and Combined Effects of Prenatal Alcohol Exposure and Prenatal Stress on Fetal HPA Axis Development

Prenatal alcohol exposure (PAE) and prenatal stress (PS) are highly prevalent conditions known to affect fetal programming of the hypothalamic-pituitary-adrenal (HPA) axis. The objectives of this study were to assess the effect of light PAE, PS, and PAE-PS interaction on fetal HPA axis activity assessed via placental and umbilical cord blood biomarkers. Participants of the ENRICH-2 cohort were recruited during the second trimester and classified into the PAE and unexposed control groups. PS was assessed by the Perceived Stress Scale. Placental tissue was collected promptly after delivery; gene and protein analysis for 11β-HSD1, 11β-HSD2, and pCRH were conducted by qPCR and ELISA, respectively. Umbilical cord blood was analyzed for cortisone and cortisol. Pearson correlation and multivariable linear regression examined the association of PAE and PS with HPA axis biomarkers. Mean alcohol consumption in the PAE group was ~2 drinks/week. Higher PS was observed in the PAE group (p < 0.01). In multivariable modeling, PS was associated with pCRH gene expression (β = 0.006, p < 0.01), while PAE was associated with 11β-HSD2 protein expression (β = 0.56, p < 0.01). A significant alcohol-by-stress interaction was observed with respect to 11β-HSD2 protein expression (p < 0.01). Results indicate that PAE and PS may independently and in combination affect fetal programming of the HPA axis.

Stress is not so bad-cortisol level and psychological functioning after 8-week HIIT program during pregnancy: a randomized controlled trial

Background

Amid extensive pregnancy exercise research, the impact of High Intensity Interval Training (HIIT) on pregnant women's mental health is underexplored. Despite exercise benefits, it can trigger stress responses like elevated cortisol. This study fills the gap by investigating correlations between hair cortisol levels, mental health, and HIIT effects in pregnant women.

Methods

We conducted a randomized control trial among 38 Caucasian women in uncomplicated, singleton pregnancy (age 31.11 ± 4.03 years, 21.82 ± 4.30 week of gestation; mean ± SD). The experimental group comprised 22 women engaged in an 8-week high-intensity interval training program (HIIT). The comparative group consisted of 16 pregnant women undergoing an 8-week educational program (EDU). Before and after the interventions, all women were evaluated using the following tools: Hair cortisol level measurements, Beck Depression Inventory - II for depressive symptoms assessment, Childbirth Attitudes Questionnaire for childbirth fear measurement, 12-item Short Form Health Survey to gage health-related quality of life, International Physical Activity Questionnaire for physical activity level estimation, and a Progressive maximal exercise test to evaluate maternal exercise capacity.

Results

The key finding of our study reveals that women engaged in the HIIT intervention exhibited a distinct cortisol production pattern in contrast to the EDU group practicing standard moderate intensity physical activity. In the HIIT group, there was an increase in hair cortisol levels, while the EDU group showed a notable decrease. Remarkably, HIIT stimulated cortisol production without adversely impacting fear of childbirth and psychophysical condition during pregnancy. In fact, only the HIIT group showed a significant enhancement in mental health.

Conclusion

No links were discovered between hair cortisol levels and the severity of depressive symptoms, psychophysical well-being, or fear of childbirth. Hence, based on our research, employing cortisol levels during pregnancy as an indicator of negative stress or depression risk appears unwarranted.

Engaging Parents Affected by Mental Health Problems in Pediatric and Gynecologic Practices-Implications of the KID-PROTEKT Study

Children of parents with mental illness are at higher risk of developing cognitive, mental health or physical health difficulties. Previous studies have described several barriers for reaching parents with mental health problems (MHPs) and their utilization of psychosocial services. We conducted a cluster randomized controlled study in 24 pediatric and gynecologic practices to evaluate KID-PROTEKT, a psychosocial healthcare intervention that comprises a psychosocial assessment to identify families with psychosocial needs and refer them to support services. In this paper, we analyzed whether psychosocially distressed parents with additional MHPs (identified by the PHQ-9 and GAD-7) had higher support needs, could be referred to support and utilized it in comparison to parents with psychosocial burden only. In total, 178 pregnant women and mothers with psychosocial burden were included, of whom 55 had MHPs. Participants with MHPs were distressed in their relationships more often and medical staff rated their level of support needs higher compared to parents without MHPs. There were no significant differences between the groups regarding whether they were referred to support services or utilized the recommended services. All participants were most frequently referred to family or parent counseling/care or childcare assistance. The results indicate that despite existing barriers, parents with MHPs could be reached and identified by the KID-PROTEKT psychosocial assessment. A psychosocial intervention like KID-PROTEKT can help to provide support for mentally ill parents.

Racial/Ethnic and Nativity Inequalities in Gestational Diabetes Mellitus: The Role of Psychosocial Stressors

INTRODUCTION

Racial/ethnic and nativity disparities in gestational diabetes mellitus (GDM) persist in the United States. Identified factors associated with these differences do not fully explain them. Research has recognized psychosocial stress as a potentially modifiable risk factor for GDM.

METHODS

We used New York City Pregnancy Risk and Assessment Monitoring System data (2009-2014) linked with birth certificate items (n = 7,632) in bivariate and multivariate analyses to examine associations between 12 psychosocial stressors (modeled three ways: individual stressors, grouped stressors, stress constructs) and GDM across race/ethnicity and nativity, and if stressors explain racial/ethnic/nativity differences in GDM.

RESULTS

U.S. and foreign-born Black and Hispanic women reported higher stressors relative to U.S.-born White women. In fully adjusted models, the financial stress construct was associated with a 51% increased adjusted risk of GDM, and adding all stressors doubled the risk. Psychosocial stressors did not explain the elevated risk of GDM among foreign-born Black (adjusted risk ratio, 2.18; 95% confidence interval, 1.53-3.11), Hispanic (adjusted risk ratio, 1.57; 95% confidence interval, 1.10-2.25), or Asian/Pacific Islander (adjusted risk ratio, 4.10; 95% confidence interval, 3.04-5.52) women compared with U.S.-born White women.

CONCLUSIONS

Historically minoritized racial/ethnic and immigrant women have an increased risk of psychosocial stressors and GDM relative to U.S.-born White women. Although financial and all stressors predicted higher risk of GDM, they did not explain the increased risk of GDM among immigrant women and women from minoritized racial/ethnic groups. Further examination into racial/ethnic and nativity inequalities in stress exposure and rates of GDM is warranted to promote healthier pregnancies and birth outcomes.

Association of maternal psychosocial stress with newborn body composition in the Healthy Start study

Maternal psychosocial stress is associated with delivery of both small- and large-for-gestational-age newborns. Prior studies have relied on methods that do not capture fat mass (FM) vs. fat-free mass (FFM). We aimed to assess the relationship of maternal psychosocial stress, using the Edinburgh Postnatal Depression Scale (EPDS) and Cohen's Perceived Stress Scale (PSS), with newborn body composition. The sample included 604 mother/newborn pairs in the Healthy Start study. We used linear regression to examine associations of EPDS (>6.5 vs. ≤6.5) and PSS (>21 vs. ≤21) with newborn adiposity (FM and %FM measured by air displacement plethysmography [ADP], BMI-for-age, weight-for-length, and weight-for-age z-scores) and lean mass (FFM and length-for-age z-score). Average age of the women was 29.2 ± 6 y. Fifty-five percent of the women were white, 26.2% Hispanic, and 12.1% Black. Twenty-four percent of women had EPDS >6.5 and 18.1% had PSS >21. Mean ± SD birthweight was 3136 ± 437 g. After adjustment for confounders, EPDS >6.5 vs. ≤6.5 corresponded with 35.3 (95% CI: 6.6, 64.0) g lower offspring FM and 0.18 (-0.03, 0.39) units shorter length z-score. PSS was not associated with any neonatal outcomes. Maternal psychosocial stress is associated with delivery of shorter newborns with less FM.

Positive maternal mental health attenuates the associations between prenatal stress and children's internalizing and externalizing symptoms

Positive maternal mental health can improve perceptions of stressful situations and promote the use of adaptive coping strategies. However, few studies have examined how positive maternal mental health affects children's development. The aims of this study were to examine the associations between positive maternal mental health and children's internalizing and externalizing symptoms, and to ascertain whether positive maternal mental health moderated the associations between prenatal stress and children's internalizing and externalizing symptoms. This study is based on the Norwegian Mother, Father, and Child Cohort Study (MoBa), and comprised 36,584 mother-child dyads. Prenatal stress was assessed using 41 self-reported items measured during pregnancy. Positive maternal mental health (self-efficacy, self-esteem, and enjoyment) was assessed by maternal report during pregnancy and postpartum. Child internalizing and externalizing symptoms were assessed by maternal report at age 5. Structural equation modeling was used for analysis. Maternal self-efficacy, self-esteem, and enjoyment were negatively associated with internalizing and externalizing symptoms in males and females. The association between prenatal stress and internalizing symptoms in males was stronger at low than at high levels of maternal self-esteem and enjoyment, whereas for females, the association was stronger at low than at high levels of maternal self-esteem and self-efficacy. This study provides evidence of associations between positive maternal mental health and children's mental health, and suggests that higher positive maternal mental health may buffer against the impacts of prenatal stress. Positive maternal mental health may represent an important intervention target to improve maternal-child well-being and foster intergenerational resilience.

Prenatal anxiety during the pandemic context is related to neurodevelopment of 6-month-old babies

Prenatal anxiety and depression in pandemic context could introduce changes in the fetal developmental trajectories that, ultimately, could alter the adaptive behaviors of the offspring, potentially affecting, for example, general neurodevelopment. The sample consisted of 105 mother-child dyads, recruited between March and May 2020. The dyads were evaluated longitudinally, prenatally and postnatally (6 months). The Pandemic Impact Questionnaire, the State-Trait Anxiety Inventory, and the Beck-II Depression Inventory were used to assess indicators of maternal anxiety and depression, respectively. Regarding the babies, their mothers responded to Age and Stages: 3, which assesses different dimensions of early neurodevelopment, in addition to a closed questionnaire to identify sociodemographic and maternal and child health variables. A series of mediation models were tested to examine the association between prenatal psychopathology/negative experiences of the pandemic and neurodevelopment. The results indicated that the negative experiences of the pandemic were indirectly associated with the socio-individual and fine motor neurodevelopment of the offspring, through maternal anxiety symptoms, during the third trimester, which functioned as a mediator.  Conclusions: This study provides evidence on the mediating effects of maternal anxiety on infant neurodevelopment in contexts of early adversity. It is important to point out the need to implement public health policies that allow a timely evaluation of neurodevelopmental variables during early childhood, which can implement early interventions to reduce the risks associated with these deficits. What is Known: • Effects of maternal mental health have been reported, effects on child neurodevelopment, in motor, cognitive, linguistic and socio-emotional dimensions. • Contexts of early adversity have been associated with maternal mental health and offspring development. What is New: • The context of pandemic adversity caused by COVID-19 is associated with motor and socio-individual neurodevelopment, mediated by maternal prenatal anxiety.

Prenatal stress and child externalizing behavior: effects of maternal perceived stress and cortisol are moderated by child sex

BACKGROUND

Externalizing behavior problems are related to social maladjustment. Evidence indicates associations between prenatal stress and child behavioral outcomes. It remains unclear how psychological distress vs. biological correlates of stress (cortisol) differentially predict externalizing behavior, and how their effects might differ as a function of child sex.

METHOD

108 pregnant women from the community collected salivary cortisol and reported their perceived stress during each trimester of pregnancy. At child age 9 years (M = 9.01, SD = 0.55), 70 mothers and children reported on child behavior. Structural equation modelling was used to analyze how cortisol levels and perceived stress during pregnancy predicted current child externalizing behavior, considering the moderating effect of child sex.

RESULTS

Perceived stress predicted higher externalizing behavior in boys (β = 0.42, p = 0.009) and lower externalizing behavior in girls (β = - 0.56, p = 0.014). Cortisol predicted lower externalizing behavior in boys (β = - 0.81, p < .001) and was not related to girls' externalizing behavior (β = 0.37, p = 0.200).

DISCUSSION/CONCLUSION

Prenatal stress affected externalizing behavior differently in girls vs. boys. These response patters in turn differed for indicators of psychological vs. biological maternal stress, encouraging an integrated approach. Findings indicate that perceived stress and cortisol may affect child development via different trajectories.

The Benefit of a Retrospective Pregnancy Anamnesis in Child and Adolescent Psychiatry: The Reliability of Maternal Self-Report during Childhood Development

Pregnancy anamnesis is a crucial part of child and adolescent psychiatry diagnostics. In previous works, the reliability of retrospective maternal self-report on perinatal characteristics was heterogeneous. This prospective longitudinal study aimed to evaluate women's recall of prenatal events in a within-subject design. A sample of 241 women gave a self-report on prenatal alcohol, smoking, partnership quality, pregnancy satisfaction, and obstetric complications during the 3rd trimester (t0), childhood (t1, 6-10 y), and adolescence (t2, 12-14 y). The intra-individual agreement was examined. The t0-t1-(t2) agreement was poor to substantial; this was highest for smoking and worst for obstetric complications, followed by alcohol (Fleiss' κ = 0.719 to -0.051). There were significant t0-t1-(t2) differences for all pregnancy variables (p < 0.017), except for 3rd trimester satisfaction (p = 0.256). For alcohol (t0 25.8%, t1 17.4%, t2 41.0%) and smoking (t0 11.9%, t1 16.4%, t2 22.6%), the highest self-reported rates were found during adolescence. During childhood, fewer obstetric complications (t0 84.9%, t1 42.2%) and worse partnerships were reported (t0 M = 8.86, t1 M = 7.89). Thought to be due to social stigmata and memory effects, pregnancy self-reports cannot be precisely reproduced. Creating a respectful and trusting atmosphere is essential for mothers to give honest self-reports that are in the best interest of their children.

Association between prenatal maternal anxiety and/or stress and offspring's cognitive functioning: A meta-analysis

This meta-analysis examined the relationship between prenatal maternal stress and/or anxiety and the outcomes of children aged 3 months to 9 years. Of the 8754 studies published before June 2021 that were synthesized, 17 conducted in Western countries were included in the meta-analysis (Ntotal  = 23,307; Mmales 54%; Methnicity White 77%, Pacific 15%, African American/Black 10%, Middle Eastern 7%, Eastern 8%). Effect sizes ranged from -0.41 to 0.15. A weak negative association was found between prenatal stress and/or anxiety exposure and children's general intellectual development. Associations varied based on the type of exposure. Findings are limited to developed counties and cannot be generalized to low- and middle-income countries. Directions for maternal prenatal intervention and future studies are discussed.

Impact of maternal emotional state during pregnancy on fetal heart rate variability

Background

The fetal autonomic nervous system (ANS) is believed to be negatively affected by maternal adverse emotional states. In this study, we evaluated how depression, anxiety and stress during pregnancy are related to fetal heart rate variability (HRV) as recorded with magnetocardiography (MCG). We also considered metabolic factors such as maternal adiposity and circulating levels of cortisol during gestation. Furthermore, we followed up these fetuses after birth, recording HRV and saliva levels of cortisol in these infants to establish any effects postpartum.

Methods

We calculated HRV in spontaneous MCG recordings from 32 healthy fetuses between 32 and 38 weeks of gestational age. Maternal emotional state was assessed using standardized questionnaires about anxiety, depression and stress. An overall indicator of maternal well-being was calculated by z-scoring each individual questionnaire and summation. We used a median split to divide the group into high and low z-scores (HZS and LZS), respectively. Standard HRV measures were determined in the time and frequency domain. T-test analyses were performed between LZS and HZS, with the HRV and the metabolic measures as the dependent variables.

Results

We found an impaired HRV in the HZS group both during pregnancy and after birth. No differences were observed between LZS and HZS for metabolic factors. Depression and anxiety symptoms seem to affect HRV differently. No relationship was found between maternal and infant cortisol levels.

Conclusions

On the basis of our results on different HRV parameters, we propose that maternal emotional state might affect the development of the fetal nervous system in utero.

Preconception maternal posttraumatic stress and child negative affectivity: Prospectively evaluating the intergenerational impact of trauma

The developmental origins of psychopathology begin before birth and perhaps even prior to conception. Understanding the intergenerational transmission of psychopathological risk is critical to identify sensitive windows for prevention and early intervention. Prior research demonstrates that maternal trauma history, typically assessed retrospectively, has adverse consequences for child socioemotional development. However, very few prospective studies of preconception trauma exist, and the role of preconception symptoms of posttraumatic stress disorder (PTSD) remains unknown. The current study prospectively evaluates whether maternal preconception PTSD symptoms predict early childhood negative affectivity, a key dimension of temperament and predictor of later psychopathology. One hundred and eighteen women were recruited following a birth and prior to conception of the study child and were followed until the study child was 3-5 years old. Higher maternal PTSD symptoms prior to conception predicted greater child negative affectivity, adjusting for concurrent maternal depressive symptoms and sociodemographic covariates. In exploratory analyses, we found that neither maternal prenatal nor postpartum depressive symptoms or perceived stress mediated this association. These findings add to a limited prospective literature, highlighting the importance of assessing the mental health of women prior to conception and providing interventions that can disrupt the intergenerational sequelae of trauma.

Prenatal maternal stress, child internalizing and externalizing symptoms, and the moderating role of parenting: findings from the Norwegian mother, father, and child cohort study

BACKGROUND

Few studies have examined how parenting influences the associations between prenatal maternal stress and children's mental health. The objectives of this study were to examine the sex-specific associations between prenatal maternal stress and child internalizing and externalizing symptoms, and to assess the moderating effects of parenting behaviors on these associations.

METHODS

This study is based on 15 963 mother-child dyads from the Norwegian Mother, Father, and Child Cohort Study (MoBa). A broad measure of prenatal maternal stress was constructed using 41 self-reported items measured during pregnancy. Three parenting behaviors (positive parenting, inconsistent discipline, and positive involvement) were assessed by maternal report at child age 5 years. Child symptoms of internalizing and externalizing disorders (depression, anxiety, attention-deficit hyperactivity disorder, conduct disorder, and oppositional-defiant disorder) were assessed by maternal report at age 8. Analyses were conducted using structural equation modeling techniques.

RESULTS

Prenatal maternal stress was associated with child internalizing and externalizing symptoms at age 8; associations with externalizing symptoms differed by sex. Associations between prenatal maternal stress and child depression, and conduct disorder and oppositional-defiant disorder in males, became stronger as levels of inconsistent discipline increased. Associations between prenatal maternal stress and symptoms of attention-deficit hyperactivity disorder in females were attenuated as levels of parental involvement increased.

CONCLUSIONS

This study confirms associations between prenatal maternal stress and children's mental health outcomes, and demonstrates that these associations may be modified by parenting behaviors. Parenting may represent an important intervention target for improving mental health outcomes in children exposed to prenatal stress.

The Efficacy of Provider-Based Prenatal Interventions to Reduce Maternal Stress: A Systematic Review

PURPOSE

Exposure to stress during the prenatal period is often associated with adverse maternal and neonatal health outcomes and is increasing in prevalence in the United States. Health care providers play a crucial role in addressing and mitigating this stress, but there is a lack of consensus in effective interventions. This review evaluates the effectiveness of prenatal provider-based interventions that reduce stress for pregnant people, especially those who are disproportionately affected by stress.

METHODS

A search of relevant English-language literature was conducted using PubMed, CINAHL, Web of Science, Embase, and PyscInfo. Inclusion criteria were 1) the target population was pregnant people, 2) the intervention was delivered within the U.S. health care system, and 3) the study intervention had the goal of reducing stress (stress-reducing intervention).

RESULTS

A total of 3,562 records were identified in the search and 23 were included in analysis. The four identified categories for provider-led stress-reducing prenatal interventions included in the review are 1) skills-building, 2) mindfulness, 3) behavioral therapy, and 4) group support. Findings suggest an increased overall likelihood of mood and maternal stress improvement among pregnant people who complete provider-based stress-reducing interventions, especially group-based therapies that integrated resource allocation, skills-building, mindfulness, and/or behavioral therapy into an intersectional program. However, the efficacy of each type of intervention varies by category and type of maternal stress targeted.

CONCLUSIONS

Although few studies demonstrated a significant reduction in stress for pregnant people, this review highlights the critical need for increased research and attention to stress-reducing interventions in the prenatal period, especially as it pertains to minoritized populations.

Depression screening may not capture significant sources of prenatal stress for Black women

Exposure to stress during pregnancy, including depression, has a significant impact on maternal health. Black women experience varied stressors that impact pregnancy outcomes. Although the move to engage in universal screening of women for depression is a positive step toward improving women's health, it has been deployed without a comprehensive examination of its utility for capturing exposure to other stressors with known associations with perinatal and neonatal health problems for Black women such as discrimination stress. In the present study, we examine the overlap between several sources of stress and a positive screen on the Edinburgh Postnatal Depression Scale (EPDS) in Black pregnant women. Data were gathered from a study examining the effects of stress on prenatal health (N = 168). Discrimination stress, structural and systemic racism stress, perceived stress, and partner abuse were measured using standardized questionnaires during pregnancy. Using a score of ≥ 13 to indicate probable depression the sensitivity of the EPDS to identify women who experienced high levels of discrimination stress (41.7%), structural and systemic racism (39.5%), perceived stress (63.4%), and partner abuse (45.2%) was suboptimal. Lowering the threshold for a positive screen on the EPDS to a score of 10 improved sensitivity but did not solve the problem of under-identification of women whose health is at risk. The focus on depression screening for pregnant women should be re-considered. A screening toolkit that more rigorously and broadly assesses risk and need for support and intervention is needed to improve perinatal health outcomes for Black women.

Preliminary Evaluation of the Effectiveness of Perinatal Mindfulness-Based Well-Being and Parenting Programs for Low-Income New Mothers

Objectives

This study examined specificity in the effects of three perinatal mindfulness-based prevention programs that differed in their timing (prenatal, postpartum) and target (maternal well-being, parenting). Effects on maternal mental health (depression, anxiety, resilience), mindfulness, and observed parenting, as well as observed, physiological, and mother-report indicators of infant self-regulation, were examined.

Methods

The programs were evaluated in a racially and ethnically diverse sample of first-time mothers (n = 188) living in low-income contexts using intention-to-treat analysis. Mothers were assigned to a prenatal well-being, postpartum well-being, parenting, or book control group. Multi-method assessments that included questionnaire, observational, and physiological measures were conducted at four time points: during pregnancy (T1) and when infants were 2–4 months (T2), 4–6 months (T3), and 10–12 months.

Results

Compared to the postpartum intervention and control groups, the 6-week prenatal well-being intervention was related to decreases in depressive symptoms during pregnancy but not postpartum, higher maternal baseline respiratory sinus arrhythmia (RSA), fewer intrusive control behaviors, and lower infant cortisol levels in the early postpartum period. Compared to all other groups, the postpartum parenting intervention was related to decreases in maternal anxiety and increases in responsive parenting. Some differential effects across programs might be due to differences in attendance rates in the prenatal (62%) vs. postpartum (35%) groups.

Conclusions

The findings suggest that brief mindfulness-based well-being and parenting preventive interventions can promote maternal and infant mental health in families living in low-income, high-stress settings, particularly if accessibility can be enhanced.

Preregistration

This study is not preregistered.

Depression, Anxiety, and Stress in Pregnancy and Postpartum: A Longitudinal Study During the COVID-19 Pandemic

INTRODUCTION

Symptoms of depression, anxiety, and stress in pregnant women are generally highest in the first trimester and then decrease throughout pregnancy, reaching their lowest point in the postpartum period. Pregnant women are a high-risk population for mortality and mental health symptoms due to COVID-19. However, the extent to which the chronic stress of the COVID-19 pandemic alters the trajectory of depression, anxiety and stress symptoms in pregnant/postpartum women is unknown.

METHODS

Women (N=127) who were pregnant or who had given birth less than one month prior were recruited via online advertising during the COVID-19 pandemic. Participants were assessed up to three times during the pregnancy and at 1-month postpartum for depression (Edinburgh Postnatal Depression Scale), anxiety, and stress (Depression, Anxiety, and Stress Scale-21). Random intercepts models examined symptom change over time as well as predictors of elevated postpartum psychopathology.

RESULTS

On average, women completed their surveys at 8.5 weeks (first trimester), 21 weeks (second trimester), 32 weeks (third trimester) and 7-weeks postpartum. Women reported mild-moderate levels of depression, anxiety, and stress throughout pregnancy. There was a significant change in symptoms of depression and anxiety over time which was best represented by a quadratic rather than linear trajectory: symptoms increased until week 23-25 and then decreased. Stress levels remained consistently elevated over time. Higher symptom levels at 1-month postpartum were predicted by younger age, lower social support, and worry about going to a healthcare facility. Change in routine due to COVID-19 was not predictive of symptom trajectory from pregnancy to postpartum.

CONCLUSIONS

During COVID-19, symptoms of depression and anxiety increased from early to mid-pregnancy but then declined slightly while stress levels remained elevated. Observed reductions in symptoms were small. Given the substantial persistent impact of perinatal distress and poor mental health on maternal and fetal health, providers should be aware of heightened levels of these symptoms in pregnant women during large-scale external health stressors such as COVID-19, and should implement screening procedures to identify and appropriately intervene with at-risk women.

Prenatal maternal stress and the severity of autism spectrum disorder: A cross-sectional study

Autism spectrum disorder (ASD) is a neurodevelopmental disorder linked to several genetic and environmental factors including antenatal stress. Hence, we aimed to examine whether a mother's stress during pregnancy is associated with the severity of autism spectrum disorder in children. The study was conducted with 459 mothers of children with autism (aged 2-14 years) who were attending rehabilitation and educational centers in the two major cities of Makkah and Jeddah in Saudi Arabia. Environmental factors, consanguinity, and ASD family history were assessed using a validated questionnaire. The Prenatal Life Events Scale questionnaire was used to assess whether the mothers were exposed to stress during pregnancy. Two models of ordinal regression analysis were conducted including gender, child age maternal age, parental age, maternal education, parental education, income nicotine exposure, mother taking medication during pregnancy, family history of ASD, gestation, consanguinity, exposure of prenatal life events (in model 1), and severity of prenatal life events (in model 2). Family history of ASD showed a statistically significant association with the severity of ASD in both regression models (p = .015, odds ratio [OR]: 4.261 in Model 1, and p = .014, OR: 4.901 in model 2). In model 2, the moderate severity prenatal life events showed higher statistically significant adjusted odds ratio for ASD severity compared to no stress (p = .031; OR: 3.82). Within the limitations of this study, prenatal stressors showed some potential contribution to ASD severity. Family history of ASD was the only factor that showed a persistent association with ASD severity. A study that assesses the effect of COVID-19 stress on ASD prevalence and severity is recommended.

Maternal Mental Health Care Matters: The Impact of Prenatal Depressive and Anxious Symptoms on Child Emotional and Behavioural Trajectories in the French EDEN Cohort

Few studies have investigated longitudinal trajectories of child socioemotional and behavioural development in relation to maternal prenatal mental health exposure or taken into consideration of the potential buffering effects of psychological intervention during pregnancy. Using data from 1135 mother-child dyads from the EDEN cohort from the general French population, Group-based trajectory modelling was used to model trajectories of behavioural and emotional characteristics measured at four timepoints via a parent-administered Strengths and Difficulties Questionnaire. Using propensity scores and inverse probability weighting to account for confounding factors, multinomial logistic regressions were used to quantify the associations with maternal symptoms of prenatal depression and anxiety. Stratified analyses were conducted by reporting psychologist and psychiatrist consultations during pregnancy. Compared to those without psychological problems, children of mothers with comorbid anxiety and depression retained a higher probability of following high and intermediate trajectories of emotional problems and a high trajectory of conduct problems throughout childhood. This increased risk was not present in the children of mothers who sought support through a prenatal psychologist or psychiatrist consultation. This article adds to a body of evidence underlining the importance of mental health care for expecting mothers.

What is prenatal stress? A scoping review of how prenatal stress is defined and measured within the context of food insecurity, housing instability, and immigration in the United States

BACKGROUND

Stress during pregnancy can lead to significant adverse outcomes for maternal mental health. Early evaluation of prenatal stress can help identify treatment needs and appropriate interventions. Disparities in the social determinants of health can contribute to stress, but what constitutes stress during pregnancy within the social determinants of health framework is poorly understood.

OBJECTIVE

To scope how prenatal stress is defined and measured among pregnant people exposed to three prominent social stressors in the United States: insecurity pertaining to food, housing, and immigration.

ELIGIBILITY CRITERIA

We included all studies that focused on stress during pregnancy in the context of food insecurity, housing instability, and immigration, given their recent policy focus due to the COVID-19 pandemic and ongoing political discourse, in addition to their importance in American College of Obstetricians and Gynecologists (ACOG's) social determinants of health screening tool.

SOURCES OF EVIDENCE

We searched PubMed, Scopus, and Web of Science for articles published between January 2012 and January 2022.

CHARTING METHODS

Using a piloted charting tool, we extracted relevant study information from the selected articles and analyzed the content pertaining to stress.

RESULTS

An initial search identified 1,023 articles, of which 24 met our inclusion criteria. None of the studies defined prenatal stress, and only one used the Prenatal Distress Questionnaire, a prenatal stress-specific tool to measure it. The Perceived Stress Scale was the most common instrument used in seven studies. Fifteen studies measured over 25 alternative exposures that researchers theorized were associated with stress, and 4 of the 15 studies did not explain the association between the measure and stress.

CONCLUSIONS

Our findings demonstrate a fundamental inconsistency in how prenatal stress is defined and measured in the context of social determinants of health, limiting the comparison of results across studies and the potential development of effective interventions to promote better maternal mental health.

Mother-in-law childcare and perinatal depression in rural Pakistan

BACKGROUND

Mothers-in-law often provide key childcare support to daughters-in-law during the perinatal period that may enhance maternal mental health. Yet, poor mother-in-law/daughter-in-law relationships may be associated with maternal depression. The extent to which mother-in-law childcare involvement affects perinatal depression may differ across contexts of family conflict.

OBJECTIVE

We explored the relationship between mother-in-law childcare and daughter-in-law perinatal depression in rural Pakistan across contexts of family conflict.

METHODS

Data on 783 women came from the Bachpan Cohort, a birth cohort in Pakistan. Maternally-reported mother-in-law childcare was assessed at 3 and 12 months postpartum using a 24-h recall and categorized into no, low, and high involvement. Major depression was captured at 3 and 12 months using the Structured Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders IV. Family conflict was captured using three items from the Life Events Checklist. Log-Poisson models were used to estimate cross-sectional associations between mother-in-law childcare and perinatal depression, stratified by family conflict.

RESULTS

Mother-in-law childcare was common in the first year postpartum. The association between mother-in-law childcare and perinatal depression differed by the presence of family conflict and postpartum timing. At 3 months postpartum, low and high mother-in-law childcare (vs no involvement) were associated with a lower prevalence of depression regardless of family conflict. At 12 months postpartum, among families with no conflict, low mother-in-law childcare (vs no involvement) was associated with lower perinatal depression; however, among families with conflict, high mother-in-law childcare was associated with increased perinatal depression.

CONCLUSION

Our findings highlight the complexities of associations between mother-in-law childcare support and perinatal depression in the first year after birth. Mother-in-law childcare in the immediate postpartum period was beneficial for mothers. Understanding the source, amount, timing, and context of social support is necessary to inform research and interventions that aim to improve maternal mental health.

The Pandemial babies: effects of maternal stress on temperament of babies gestated and born during the pandemic

The COVID-19 pandemic may configure an adverse prenatal context for early development. The aim of this study was to analyze the effects of pandemic-related negative experiences, prenatal anxiety and depression on the temperament of six-month-old babies. The sample consisted of 105 mother-child dyads. A longitudinal evaluation was carried out using pre- and postnatal online surveys. Mothers completed the State-Trait Anxiety Inventory, the Beck Depression Inventory - II, the Pandemic Impact Questionnaire and the Infant Behavior Questionnaire Revised. Serial mediation models were tested, in which the pandemic-related negative experiences constituted the independent variable, the prenatal anxiety and depression were the mediators, and the children's temperament dimensions were the dependent variables. Pandemic-related negative experiences were indirectly associated with the offspring's negative affect and surgency through anxious symptomatology, which acted as a mediating variable. This was the first study to identify the effects of the COVID-19 pandemic on temperament. Such an adverse context implies risks for child development. Public health policies aiming to evaluate socioemotional variables during early childhood become necessary to allow on-time interventions for lessening these risks.

A psycho-educational intervention programme for parents with SGA foetuses supported by an adaptive mHealth system: design, proof of concept and usability assessment

Background

Technology-based approaches during pregnancy can facilitate the self-reporting of emotional health issues and improve well-being. There is evidence to suggest that stress during pregnancy can affect the foetus and result in restricted growth and preterm birth. Although a number of mobile health (mHealth) approaches are designed to monitor pregnancy and provide information about a specific aspect, no proposal specifically addresses the interventions in parents at risk of having small-for-gestational-age (SGA) or premature babies. Very few studies, however, follow any design and usability guidelines which aim to ensure end-user satisfaction when using these systems.

Results

We have developed an interactive, adaptable mHealth system to support a psycho-educational intervention programme for parents with SGA foetuses. The relevant results include a metamodel to support the task of modelling current or new intervention programmes, an mHealth system model with runtime adaptation to changes in the programme, the design of a usable app (called VivEmbarazo) and an architectural design and prototype implementation. The developed mHealth system has also enabled us to conduct a proof of concept based on the use of the mHealth systems and this includes data analysis and assesses usability and acceptance.

Conclusions

The proof of concept confirms that parents are satisfied and that they are enthusiastic about the mHealth-supported intervention programme. It helps to technically validate the results obtained in the other stages relating to the development of the solution. The data analysis resulting from the proof of concept confirms that the stress experienced by parents who followed the mHealth-supported intervention programme was significantly lower than among those who did not follow it. This implies an improvement in the emotional health not only of the parents but also of their child. In fact, the babies of couples who followed the mHealth-supported programme weigh more than the babies of couples under traditional care. In terms of user acceptance and usability, the analysis confirms that mothers place greater value on the app design, usefulness and ease of use and are generally more satisfied than their partners. Although these results are promising in comparison with more traditional and other more recent technology-based approaches.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12911-022-02036-9.

Characterization of Maternal Psychosocial Stress During Pregnancy: The Healthy Start Study

Objective:

To capture multidimensional maternal psychosocial stress using responses from the Edinburgh Postnatal Depression Scale (EPDS) and Cohen's Perceived Stress Scale (PSS) administered during pregnancy, and to identify sociodemographic, biological, and health behavioral correlates of the stress domains.

Methods:

Using data from 1,079 pregnant women, we implemented principal component analysis on EPDS and PSS responses and retained factors based on the Scree plot and Eigenvalues >1. We then used linear regression to identify perinatal correlates of each domain.

Results:

We identified three stress domains: “Feeling Overwhelmed,” “Anhedonia,” and “Lack of Control,” which accounted for 10.6% of variance in questionnaire responses. In multivariable analyses, household income ≤$70,000 (β = 0.21 confidence interval [95% CI: 0.05–0.39]), primiparity (0.36 [0.02–0.71]), inadequate (0.21 [0.04–0.39]) or excessive gestational weight gain (0.27 [0.11–0.42]), and Healthy Eating Index (HEI) score ≤57 (0.14 [0.00–0.28]) were associated with Feeling Overwhelmed. Older age (0.02 [0.00–0.03] per 1-year), Hispanic ethnicity (0.19 [0.00–0.38]), and HEI score ≤57 (0.15 [0.02–0.28]) were associated with Anhedonia. Non-Hispanic Black race/ethnicity (0.37 [0.10–0.63]), not having graduated from college (0.16 [−0.02 to 0.35]), having a partner born outside the United States (0.17 [−0.02 to 0.37]), household size of ≥5 persons (0.21 [−0.02 to 0.37]), receiving public assistance (0.18 [−0.02 to 0.37]), and prenatal smoking (0.32 [0.05–0.59]) were associated with Lack of Control.

Conclusions:

Three domains of maternal psychosocial stress during pregnancy (Feeling Overwhelmed, Anhedonia, and Lack of Control) were differentially related to sociodemographic, biological, and health behavioral characteristics that may be targets for interventions to ameliorate stress in pregnant women.

Clinical Trial Registry

: The Healthy Start study is registered as an observational study at clinicaltrials.gov (NCT #002273297).

Psychometric analysis of the Edinburgh Postnatal Depression Scale and Pregnancy Related Anxiety Questionnaire in Pakistani pregnant women

BACKGROUND

The Edinburgh Postnatal Depression Scale (EPDS) and the Pregnancy-Related Anxiety Scale (PRAQ) are frequently used perinatal mental health scales.

OBJECTIVE

To identify the factor structure of the Urdu language versions of EPDS and PRAQ in 280 Pakistani pregnant women.

METHOD

The tools were administered at 12-19 weeks' and 22-29 weeks' gestational age (GA). Exploratory factor analyses were undertaken on data collected at 12-19 weeks' GA, to assess both scales. Results obtained at the second time point were used to examine test-retest reliability. The correlation between the scales was computed.

RESULTS

A two-factor model yielded the best fit for both scales, which is consistent with findings from previous studies. For the EPDS, acceptable reliability was attained for the overall score (α = 0.77) and for the factor related to depressive symptoms (α = 0.73), but not for the factor related to anhedonia/suicide (α = 0.64). For the PRAQ, acceptable reliability was attained for the overall score (α = 0.83) and for the factor related to pregnancy concerns (α = 0.84), but not for the factor related to childbirth (α = 0.64). Test-retest reliability was acceptable for both overall scales EPDS: r = 0.50; PRAQ: r = 0.45; both p < .001). The Pearson correlation between the EPDS and PRAQ were r = 0.145, p < .05.

CONCLUSION

Analysis of the tools confirmed a two-factor structure for both depression and anxiety among Pakistani pregnant women. A weak correlation was found between the EPDS and PRAQ. Further research is required to develop screening instruments for perinatal mental disorders that are applicable to cultural contexts.

Coping with Covid-19: stress, control and coping among pregnant women in Ireland during the Covid-19 pandemic

Background

The aim of the current study is to investigate the relationship between perceived control, coping and psychological distress among pregnant women in Ireland during the Covid-19 pandemic. It is hypothesised that lower levels of perceived control, greater use of avoidant coping and greater Covid-19 related pregnancy concern will be associated with psychological distress. In addition, it is hypothesised that the relationship between Covid-19 related pregnancy concern and psychological distress will be moderated by perceived control and avoidant coping.

Method

The study is cross-sectional, utilizing an online questionnaire, which was completed by 761 women in January 2021. The questionnaire includes measures of perceived control, coping style, perceived stress, anxiety and depression.

Results

Correlation analyses found that lower levels of perceived control were associated with higher levels of avoidant coping and psychological distress. There was also a significant positive relationship between avoidant coping and psychological distress. Using multiple regression, perceived control, avoidant coping and Covid-19 related pregnancy concern were found to predict 51% of the variance in psychological distress. However, in the moderation analysis, perceived control and avoidant coping were not found to moderate the relationship between Covid-19 related pregnancy concern and psychological distress.

Conclusion

The results from this study suggest that pregnant women in Ireland are experiencing increased levels of psychological distress during the Covid-19 pandemic. The findings also suggest that perceptions of control and avoidant coping are associated with psychological distress in this group and could be used as intervention targets.

Associations Between Maternal Distress, Cortisol Levels, and Perinatal Outcomes

OBJECTIVE

Stress during pregnancy may decrease gestational age at birth and birth size. We aimed to investigate the associations between maternal subjective stress measures, salivary cortisol, and perinatal outcomes.

METHODS

A cohort of pregnant women (n = 1693) was recruited from eight antenatal care clinics in Stockholm, Sweden. Questionnaires on subjective distress (perceived stress, worry, depression symptoms, sleep quality) and saliva samples for cortisol measurement (morning and evening) were collected in early and late pregnancy. Perinatal outcomes were birth weight, birth length, gestational age, and birth weight for gestational age. We used linear regression to estimate associations adjusted for maternal characteristics.

RESULTS

All associations between subjective distress and cortisol levels were close to null and nonsignificant, for example, exp(β) = 1.001 (95% confidence interval = 0.995 to 1.006) for the morning cortisol level and perceived stress in early pregnancy. Likewise, most associations between distress (subjective and cortisol) and perinatal outcomes were weak and not statistically significant, for example, β = 1.95 (95% confidence interval = -4.16 to 8.06) for perceived stress in early pregnancy and birth weight. An exception was a statistically significant association between birth weight for gestational age and depression symptoms in early pregnancy, with somewhat higher weight with more symptoms (β = 0.08; 95% CI = 0.04 to 0.13). The results were similar for stress in early and late pregnancy.

CONCLUSIONS

We found no association between subjective distress and cortisol measures irrespective of when in pregnancy the measures were taken. Furthermore, we found no evidence for a longitudinal association between psychological measures of stress or cortisol with lower birth weight, birth weight for gestational age, or gestational age.

Validity and reliability of the Greek version of Pregnancy Outcome Questionnaire (POQ)

BACKGROUND

During the last decades a considerable increase in biological and psychosocial approaches have occurred so as to enhance the study of prenatal period. This study aimed to investigate the validity and reliability of the Greek version of Pregnancy Outcome Questionnaire (POQ) in assessing pregnancy-related stress.

MATERIAL AND METHODS

The study group consisted of 135 first-time expectant women with good knowledge of the Greek language, low-risk pregnancies and a gestational age of ≥24 weeks. Questionnaires containing the POQ scale questions in addition to other questions and scaleswere distributed in printed and digital format at private gynecological clinics. The collected data were analysed using the SPSS software.

RESULTS

The POQ scale score showed satisfactory reliability (Cronbach's alpha = 0.8), while the factor analysis showed a major factor with an eigenvalue of 4.17 and an overall interpreted factor variance of 41%. The sample showed moderate intensity values on the scale. We observed that pregnancy-related characteristics affected the scale, while no significant correlations with demographic variables were recorded.

CONCLUSION

The results of the reliability and factor analyses evaluating the scale structure indicated that the tool performed well in Greek, had a compact structure with satisfying reliability, and is suitable for use in the Greek pregnant population. However, additional research is warranted to investigate the effect of various additional factors on the scale.

Maternal Psychological Distress and Lactation and Breastfeeding Outcomes: a Narrative Review

PURPOSE

Despite recommendations from the World Health Organization and the American Academy of Pediatrics to exclusively breastfeed infants for their first 6 months of life, 75% of women do not meet exclusive breastfeeding guidelines, and 60% do not meet their own breastfeeding goals. Numerous observational studies have linked maternal psychological distress (eg, perceived stress, anxiety, and depression) with nonoptimal breastfeeding outcomes, such as decreased proportion and duration of exclusive breastfeeding. The physiological mechanisms underlying these associations, however, remain unclear.

METHODS

For this narrative review, we evaluated the evidence of relationships between maternal psychological distress and lactation and breastfeeding outcomes in pregnancy and post partum and the possible physiological mechanisms that facilitate these relationships. We searched PubMed using the following terms: stress, anxiety, depression, breastfeeding, and lactation. Additional search by hand was conducted to ensure a thorough review of the literature.

FINDINGS

Among the studies examined, methods used to assess maternal psychological distress were not uniform, with some studies examining perceived distress via a variety of validated tools and others measuring biological measures of distress, such as cortisol. Evidence supports a role for psychological distress in multiple breastfeeding outcomes, including delayed secretory activation and decreased duration of exclusive breastfeeding. One physiological mechanism proposed to explain these relationships is that psychological distress may impair the release of oxytocin, a hormone that plays a critical role in milk ejection during lactation. Continued impairment of milk ejection may lead to decreased milk production because of incomplete emptying of the breast during each feed. Maternal distress may also yield elevated levels of serum cortisol and decreased insulin sensitivity, which are associated with decreased milk production. The relationship between psychological distress and breastfeeding is likely to be bidirectional, however, in that breastfeeding appears to reduce maternal distress, again possibly via effects on the pleasure or reward pathway and calming effects of oxytocin on the mother. This finding suggests that interventions to support lactation and breastfeeding goals in women who score high on measures of psychological distress would be beneficial for both maternal and infant well-being.

IMPLICATIONS

Evidence to date suggests that maternal psychological distress may impair lactation and breastfeeding outcomes, but stronger study designs and rigorous assessment methods are needed. A better understanding of the physiological mechanisms leading to impaired lactation may assist in the development of early interventions for mothers experiencing distress. In addition, stress-reducing programs and policies should be investigated for their potential to improve breastfeeding outcomes.

Cortisol levels versus self-report stress measures during pregnancy as predictors of adverse infant outcomes: a systematic review

Systematically review existing evidence to (1) identify the association between self-report stress and cortisol levels measured during pregnancy; and, (2) assess their association with adverse infant outcomes to determine which is the better predictor. A systematic review was conducted in accordance with PRISMA guidelines. Search terms focused on pregnancy, psychological stress and cortisol. Nine electronic databases were searched, in addition to reference lists of relevant papers. Eligibility criteria consisted of studies that included measurement of self-reported psychological stress, cortisol and assessed their associations with any infant-related outcome. Further limits included studies published in English or Spanish with human female participants. A meta-regression was not feasible due to differences in study samples, measurement tools employed, types of cortisol assessed and outcomes reported. A narrative synthesis was provided. 28 studies were eligible for inclusion. Convergent validity between self-report measures and cortisol was reported by three studies (range r = 0.12-0.41). Higher levels of self-report stress were significantly associated with intrauterine growth restriction (fetal biparietal diameter, low fetal head circumference, abdominal circumference), low gestational age at birth, low anthropometric measures (birth length, head circumference, length of the neonate), poor infant neurodevelopment (cognitive development) and potentially pathogenic gut microbiota (Clostridiaceae Clostridium, Haemophilus) in six studies. Higher cortisol levels were significantly associated with intrauterine growth restriction (fetal biparietal diameter, low fetal head circumference, abdominal circumference), low gestational age at birth, low infant birth weight, poor infant neurodevelopment (attention scores on the Network Neurobehavioral Scale) and low levels of potentially protective gut microbiota (Lactobacillus, Slackia and Actinobaculum) in 13 studies. Of the studies that assessed which type of measure was a better predictor of infant outcomes (n = 6), there was agreement that cortisol levels were statistically better at predicting adverse outcomes than self-reported stress. Self-report stress measures appear to be modest predictors of adverse infant outcomes in comparison to cortisol. A number of methodological limitations need to be addressed in future studies to help understand the relationship between cortisol and self-reported stress and how they are related to adverse infant outcomes.

Prenatal witness stress induces intergenerational anxiety-like behaviors and altered gene expression profiles in male mice

Prenatal cues imposed on an organism can exert long-term and even cross-generational influences on the physiology and behaviors. To date, numerous rodent models have been developed to mimic the effects of prenatal physical stress on offspring. Whether psychological stress during gestation exerts adverse influences on offspring remains investigated. Here, we report that prenatal witnessing the defeat process of the mated partner induces anxiety-like behaviors in F1 male, but not female offspring. These abnormal behaviors were not present in the F2 generation, indicating a sex-specific intergenerational effects. Genome-wide transcriptional profiling identified 71 up-regulated and 120 down-regulated genes shared in F0 maternal and F1 male hippocampus. F0 and F1 hippocampi also shared witness stress-sensitive and -resistant genes. Whole transcriptome comparison reveals that F1 dentate gyrus showed differential expression profiles from hippocampus. Few differentially expressed genes were identified in the dentate gyrus of F1 stress female mice, explaining why females were resistant to the stress. Finally, candidate drugs as the potential treatment for psychological stress were predicted according to transcriptional signatures, including the histone deacetylase inhibitor and dopamine receptor agonist. Our work provides a new model for better understanding the molecular basis of prenatal psychological stress, highlighting the complexity of stress and sex factors on emotion and behaviors.

[Not Available]

Objective This study examined the independent effect of delivery type and preoperative anxiety on placenta oxidative stress response.

Materials and methods A total of 126 patients who gave birth were divided into two groups according to delivery type: vaginal delivery group (VD) (n=56) and elective cesarean section delivery group (CS) (n=70). The preoperative anxiety levels of pregnant women who came to the delivery room were evaluated with the State Anxiety Inventory (SAI) scale. Malonyldialdehyde (MDA), superoxide dismutase (SOD), total antioxidative status (TAS), total oxidative state (TOS), and oxidative stress index (OSI) levels in umbilical cord blood were compared according to preoperative anxiety level and type of delivery.

Results The CS group had significantly higher MDA (0.88±0.15 versus 0.79±0.09, p=0.001) and TOS (8.37±1.81 versus 7.53±0.77, p=0.019) values compared to the VD group. TAS levels did not differ significantly between the groups. SOD levels were higher in VD group compared to CS group (p=0.049). When the factors affecting oxidative stress biomarkers are analyzed by regression analysis, factors affecting MDA were found to be SAI score (Beta=0.358), CS (Beta=0.212), the factor affecting SOD was found to be VD (Beta=0.318), the factors affecting TOS were found to be SAI score (Beta=0.317) and CS (Beta=0.183).

Conclusıon Oxidative stress biomarker levels in umbilical cord blood and preoperative anxiety levels were higher in patients who underwent elective caesarean section than those who delivered vaginally. Preoperative anxiety was the factor that increased oxidative stress biomarkers of umbilical cord blood the most.

Placental DNA methylation marks are associated with maternal depressive symptoms during early pregnancy

Maternal depressive symptoms during pregnancy are a significant risk factor for adverse developmental and health outcomes of the offspring. The molecular mechanisms mediating the long-term effects of this exposure are not well understood. Previous studies have found association between prenatal exposure to maternal psychological distress and placental DNA methylation of candidate genes, which can influence placental barrier function and development of the fetus. Our objective in this study was to determine epigenome wide association of maternal depressive symptoms in early pregnancy with the placental DNA methylation. For this purpose we examined DNA methylomes of 92 placental samples by using reduced representation bisulfite sequencing. The placental samples were collected after deliveries of 39 girls and 59 boys, whose mothers had Edinburgh Postnatal Depression Score ranging from 0 to 19 at gestational week 14. According to our results maternal depressive symptoms are associated with DNA methylation of 2833 CpG sites, which are particularly over-represented in genic enhancers. The genes overlapping or nearest to these sites are functionally enriched for development of neurons and show expression enrichment in several regions of developing brain. The genomic regions harboring the DNA methylation marks are enriched for single nucleotide polymorphisms associated with mental disease trait class. Potential cellular signaling cascades mediating the effects include inflammatory and hormonal pathways. As a conclusion our results suggest that maternal depressive symptoms during early pregnancy are associated with DNA methylation marks in placenta in genes, which are important for the development and long-term health of the brain. Whether similar marks can be detected in exposed children remains to be elucidated in further studies.

Association of Maternal Stress and Social Support During Pregnancy With Growth Marks in Children's Primary Tooth Enamel

IMPORTANCE

Exposure to maternal psychosocial stressors during the prenatal and perinatal periods can have major long-term mental health consequences for children. However, valid and inexpensive biomarkers are currently unavailable to identify children who have been exposed to psychosocial stress and the buffers of stress exposure.

OBJECTIVE

To assess whether a growth mark in tooth enamel, the neonatal line, is associated with exposure to prenatal and perinatal maternal psychosocial factors.

DESIGN, SETTING, AND PARTICIPANTS

This prospective cohort study used exfoliated primary canine teeth and epidemiological survey data from 70 children enrolled in the Avon Longitudinal Study of Parents and Children, a birth cohort based in Bristol, England. Exfoliated teeth were collected from children at 5 to 7 years of age. Data were collected from January 1, 1991, to December 31, 1998, and were analyzed from January 1, 2019, to August 10, 2021.

EXPOSURES

Four types of prenatal and perinatal maternal psychosocial factors were studied: stressful life events, psychopathological history, neighborhood disadvantage, and social support. Data were collected from mailed-in questionnaires completed during and shortly after pregnancy.

MAIN OUTCOMES AND MEASURES

Neonatal line width measured within 3 portions of the tooth crown (the cuspal, middle, and innermost third) in exfoliated primary canines.

RESULTS

A total of 70 children (34 of 70 [48.7%] male; 63 of 67 [94.0%] White) were studied. Most children were born full term (57 [83.8%]) and to mothers of typical child-bearing age (60 [88.2%]). Neonatal lines were wider in the canines of children born to mothers who self-reported severe lifetime depression (β = 3.35; 95% CI, 1.48-5.23; P = .001), any lifetime psychiatric problems (β = 2.66; 95% CI, 0.92-4.41; P = .003), or elevated anxiety or depressive symptoms at 32 weeks' gestation (β = 2.29; 95% CI, 0.38-4.20; P = .02). By contrast, neonatal lines were narrower in children born to mothers who self-reported high social support shortly after birth (β = -2.04; 95% CI, -3.70 to -0.38; P = .02). The magnitude of these associations was large, up to 1.2 SD unit differences, and persisted after adjusting for other risk factors.

CONCLUSIONS AND RELEVANCE

In this cohort study, neonatal line width was associated with exposure to maternal perinatal psychosocial factors. Replication and validation of these findings can further evaluate teeth as possible new biomarkers.

Association between fetoplacental Doppler results, placental pathology, and angiogenic factors among pregnant women with anxiety

OBJECTIVE

This study aimed to evaluate whether state and trait anxiety among pregnant women were associated with fetoplacental Doppler findings, abnormal placental pathology, and placental angiogenic factors.

MATERIALS AND METHODS

A total of 102 pregnant women at 32-35 gestational weeks were recruited and examined prospectively. State and trait anxiety were measured using the State-Trait Anxiety Inventory. Using Doppler ultrasound, pulsatility index (PI) of the umbilical artery (UA), middle cerebral artery (MCA), and uterine artery (UtA) and cerebroplacental ratio (CPR) were determined. Doppler parameters were converted into multiples of the median (MoM). Abnormal placental pathology was classified into 2 groups: vascular underperfusion (VU) and histological chorioamnionitis (HCA). Immunohistochemical analysis was performed to examine placental cells staining positive for placental growth factor (PLGF) and hypoxia-inducible factor-1-α (HIF-1α), which are markers for angiogenesis and hypoxic status, respectively.

RESULTS

Women with high state anxiety scores had low MCA-PI MoM and CPR MoM, while those with high trait anxiety scores had low MCA-PI MoM. VU was associated with a higher incidence of high trait anxiety scores, and HCA was associated with a higher incidence of high state and trait anxiety scores. Regression analysis showed a relationship between maternal state anxiety on MCA-PI MoM and HCA after controlling for covariates. Maternal trait anxiety exhibited relationships with VU and HCA after adjustment.

CONCLUSION

Our results demonstrated that maternal anxiety is associated with altered fetal cerebral blood flow and abnormal placental pathology but is not associated with uteroplacental insufficiency and placental angiogenic factors.

Maternal Sociodemographic Factors and Antenatal Stress

Antenatal stress has been associated with adverse birth outcomes such as fetal growth restriction, low birth weight, and preterm birth. Understanding key determinants of stress in a vulnerable pregnant population has the potential of informing development of targeted cost-effective interventions to mitigate against these adverse birth outcomes. We conducted a secondary analysis of data from 150 pregnant women attending antenatal care services at a rural referral hospital in Kenya. The participants completed a sociodemographic and clinical questionnaire, the Cohen’s Perceived Stress Scale (PSS) and gave a hair sample for cortisol and cortisone analysis. The association between selected sociodemographic predictors (age, parity, marital status, maternal education, household income, polygyny, and intimate partner violence) and outcomes (hair cortisol, hair cortisone, and PSS score) was examined using univariate, bivariate and multivariate models. We found a negative association between PSS scores and household income (β = −2.40, p = 0.016, 95% CI = −4.36, −0.45). There was a positive association of the ratio of hair cortisone to cortisol with Adolescent age group (β = 0.64, p = 0.031, 95% CI = 0.06, 1.22), and a negative association with Cohabitation (β = −1.21, p = 0.009, 95% CI = −2.11, −0.31). We conclude that household income influenced psychological stress in pregnancy. Adolescence and cohabitation may have an influence on biological stress, but the nature of this effect is unclear.

Assessment of anxiety during pregnancy: are existing multiple anxiety scales suitable and comparable in measuring anxiety during pregnancy?

BACKGROUND

This study examined the performance of multiple anxiety scales in measuring anxiety during pregnancy, an important issue due to the possible effect of pregnancy-related symptoms on the measurement of anxiety.

METHODS

Secondary data on anxiety, measured by the State-Trait Anxiety Inventory-State (STAI-S) 20-item and six-item scales, the Edinburgh Postnatal Depression Scale-Anxiety Subscale (EPDS-3A) and the Symptoms Checklist-90-Anxiety Subscale (SCL-90), were obtained from two pregnancy cohort studies. Both cohorts completed the EPDS-3A, while 3341 women completed the STAI-S and 2187 women completed the SCL-90, with 231 women participating in both cohorts. Data were analyzed using confirmatory factor analysis and Spearman correlation.

RESULTS

The STAI-6 had adequate model fit, while the STAI-20 and the SCL-90 had inadequate model fit. Model fitness for the EPDS-3A could not be assessed due to its low number of items. The correlation between the STAI-20 and STAI-6 was excellent (r = 0.93). The correlation of EPDS-3A with other anxiety scales was low to moderate (r (STAI-20) = 0.57, r (STAI-6) = 0.53 and r (SCL-90) = 0.44). The correlation of SCL-90 with both STAI-20 and STAI-6 was low (r < 0.50).

CONCLUSION

Findings indicate that these scales do not measure anxiety as a single dimension and that these scales are incomparable and may conceptualize anxiety differently.

The impact of prenatal stressful life events on adverse birth outcomes: A systematic review and meta-analysis

BACKGROUND

Stressful life events as important stressors have gradually been recognized as the potential etiology that may lead to adverse birth outcomes such as preterm birth (PTB), low birth weight (LBW), and small for gestational age (SGA). However, researches on this topic have shown relatively inconsistent results. This systematic review and meta-analysis was performed to synthesize available data on the association between prenatal stressful life events and increased risks of PTB, LBW, and SGA.

METHODS

Electronic databases were searched from their inception until September 2020. Pooled relative risks (RRs) and 95% confidence intervals (CIs) were calculated to assess the association between prenatal stressful life events and PTB, LBW, and SGA using random effects models. In addition, subgroup analyses, cumulative meta-analyses, sensitivity analyses, and publication bias diagnosis were conducted. STATA 14.0 was applied for statistical analyses.

RESULTS

Totally 31 cohort studies involving 5,665,998 pregnant women were included. Prenatal stressful life events were associated with a 20% higher risk of PTB (RR = 1.20, 95%CI = 1.10-1.32), a 23% increased risk for LBW (RR = 1.23, 95%CI = 1.10-1.39), and a 14% higher risk of SGA (RR = 1.14, 95%CI = 1.08-1.20). Sensitivity analysis indicated the results were stable.

CONCLUSIONS

Findings indicated that pregnant women experiencing prenatal stressful life events were at increased risk of PTB, LBW, and SGA. This information provided additional supports that pregnant women experiencing prenatal stressful life events would benefit from receiving assessment and management in prenatal care services.

Comprehensive intervention during pregnancy based on short message service to prevent or alleviate depression in pregnant women: A quasi-experimental study

AIM

Women have an increased risk for developing depression during pregnancy, and depression has a serious negative impact on the mother and infant. This study explored the effectiveness and feasibility of a comprehensive intervention based on using a short message service (SMS) to reduce depressive symptoms and prevent depression during pregnancy.

METHODS

This quasi-experimental study was conducted in three public hospitals with similar levels of care and maternal origin in Jiangmen City, Guangdong Province. One of the three hospitals was randomly selected as the intervention hospital, and the others were control hospitals. There were 4501 pregnant women who participated in this study. Pregnant women in the intervention group received a comprehensive intervention based on SMS after enrollment. Data were collected using questionnaires from August 2016 to August 2018.

RESULTS

After the intervention, the Edinburgh Postnatal Depression Scale scores of the intervention group were lower than those of the control group (intervention group: 3.9 ± 3.9, control group: 5.2 ± 4.3, P < .001), and the proportion of subjects with positive depression screening results in the intervention group was also significantly lower than that in the control group (intervention group: 9.0%, control group: 16.1%, P < .001). Moreover, compared with women in the intervention group, women in the control group who did not receive the intervention were more likely to be positive for depression in the third trimester (AOR = 2.04, 95% CI = 1.62-2.58).

CONCLUSIONS

The SMS-based comprehensive intervention used in this study can effectively alleviate depressive symptoms and reduce the risk of depression during pregnancy.

Longitudinal study on prenatal depression and anxiety during the COVID-19 pandemic

Several studies have reported the negative impact of the COVID-19 pandemic context on mental health. Given that pregnant women constitute a vulnerable group, they may be at greater risk for developing psychopathological symptoms due to the confinement. The current study aimed to longitudinally analyze the presence and evolution of indicators of depression and anxiety in pregnant and non-pregnant women, and to identify the differential effects of social isolation or distancing measures on these groups. Participants were 105 pregnant and 105 non-pregnant Argentine adult women. They completed the Beck Depression Inventory-II, the State-Trait Anxiety Inventory, and closed-ended questions on sociodemographic factors, at four different times. Results showed a progressive increase in anxiety and depressive symptoms in the first 50 days of confinement in both groups, and a slight decrease after approximately 150 days. Pregnant women presented a more pronounced initial increase in symptoms, and a weaker decrease at the last wave, compared to the non-pregnant. Results suggest that the pandemic context produces a moderate negative early response and that the initial flexibilizations of sanitary measures (50 days) did not slow down the progression of symptoms (even less in pregnant women). In conclusion, being pregnant could be an extra risk factor for the development of psychopathological symptoms during this pandemic. The particular vulnerability of pregnant women and the associated potential negative effects both on them and on their offspring underline the importance of perinatal health policies aimed at prevention and treatment of possible future consequences.

Maternal stress, placental 11β-hydroxysteroid dehydrogenase type 2, and infant HPA axis development in humans: Psychosocial and physiological pathways

INTRODUCTION

Prenatal stress is known to influence fetal hypothalamic-pituitary-adrenal axis (HPA axis) development. Placental 11β-hydroxysteroid dehydrogenase type 2 (HSD11B2) is a central gene in this pathway, but little is known about what influences its functioning. We assess how maternal distress influences HSD11B2 functioning, and how HSD11B2 in turn, is associated with infant HPA axis development.

METHODS

Data come from 24 mother-infant dyads on the Galápagos Islands. Using adjusted linear regression models, we assess the effects of maternal psychosocial (stress and depressive symptoms, measured by the Perceived Stress Scale and the Patient Health Questionnaire-8, respectively) and physiological (HPA axis dysregulation) distress during pregnancy on HSD11B2 methylation and expression and then test how these HSD11B2 measures influence infant HPA axis development.

RESULTS

Maternal HPA axis dysregulation during pregnancy is associated with lower placental HSD11B2 expression, which is associated with an exaggerated cortisol reactivity in infants. Sex-specific analyses revealed that maternal depressive symptoms may influence the functioning of placental HSD11B2 differently in girls (n = 11, 46%) than in boys (n = 13, 54%), though the sample size was small.

DISCUSSION

These results support a disrupted adaptive framework, in which the ability to upregulate HSD11B2 expression in response to acute stress diminishes as maternal stress becomes chronic. In this model, chronic stress may exhaust the protective mechanism of HSD11B2, leaving the infant vulnerable to high levels of maternal cortisol, which could injure the fetal HPA axis and disrupt long-term neurobehavioral and metabolic development. While larger studies will be needed to confirm these findings, this study offers exploratory results on the effects of maternal distress on both HSD11B2 methylation and expression and the effect of HSD11B2 on offspring HPA axis development.

Spanish validation and factor structure of the Prenatal Distress Questionnaire Revised (NuPDQ)

Background: Due to an absence of maternal stress being measured in routine prenatal care by clinicians, prenatal stress has become a serious problem which is associated with poorer obstetric outcomes, as well as worse maternal and infant health. For that reason, the aim of this study was the translation, validation and adaptation of Prenatal Distress Questionnaire Revised (NuPDQ) in a Spanish sample.Methods: Three-hundred and seventy-one pregnant women were assessed using the NuPDQ, the Prenatal Distress Questionnaire, Perceived Stress Scale and the Connor-Davidson Resilience Scale. The NuPDQ was translated into Spanish by the backtranslation method and administered to participants.Results: A confirmatory factor analysis revealed the established unidimensional structure to be a poor fit to data with the Spanish version. An exploratory factor analysis suggested a five-factor structure with 14 items. The instrument had good reliability, convergent and discriminant validity psychometric properties.Conclusions: The five-factor 14-item NuPDQ is useful to assess pregnancy-specific stress in Spanish pregnant women. It may be appropriate to use this instrument in order to identify pregnant women with high pregnancy-specific stress to try to prevent negative consequences derived from those high levels.

Educational differences in prenatal anxiety and depressive symptoms and the role of childhood circumstances

Despite interest in unequal maternal and child health, previous research has not focused on educational differences in anxiety and depressive symptoms during pregnancy, although they threaten maternal and child wellbeing. Using the prospective FinnBrain Cohort Study data on 2763 pregnant women over the three pregnancy trimesters and Finnish register data, we estimated multilevel regressions to describe educational differences in prenatal anxiety and depressive symptoms and to analyze whether they can be explained by socioeconomic background, parental mental disorders and adverse experiences during childhood. Prenatal anxiety was measured by the Symptom Checklist (SCL-90-anxiety subscale) and depressive symptoms by the Edinburgh Postnatal Depression Scale (EPDS). The results showed less anxiety and depressive symptoms among more educated pregnant women. In accounting for the educational differences, we found support for both the social selection and the social causation perspectives. Adverse childhood experiences partly explained the educational differences, highlighting the role of an undisturbed childhood environment in prenatal mental health disparities. Results from the regression models as well as sensitivity analyses also suggested that education is likely to buffer against prenatal distress.

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Higher education predicted lower anxiety and depressive symptoms during pregnancy.

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Educational differences were not attributable to childhood SES or parental mental health.

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Adverse childhood experiences partly explained the educational differences.

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Sensitivity analysis suggested education to buffer against prenatal distress.

Assessment of the association of heart rate variability and baroreflex sensitivity with depressive symptoms and stress experienced by women in pregnancy

BACKGROUND

Pregnancy is a unique physiological state with systemic changes including cardiovascular, autonomic, hemodynamic and psychological. Increase in incidence of stress and depression in antenatal period has been reported. Autonomic changes in pregnancy and its dysfunction in depression are well documented. However, there is lack of evidence associating cardiovascular autonomic dysfunction to stress and depressed mood in pregnant women.

METHODS

In this correlation study, we assessed cardiovascular autonomic functions of 172 pregnant women using heart rate variability (HRV) and baroreflex sensitivity (BRS). The Edinburg postnatal depression scale (EPDS) was used to evaluate depressive symptoms and perceived stress scale (PSS) was used to assess stress. The HRV and BRS parameters were correlated with EPDS and PSS. Multiple regression analysis was performed for EPDS and PSS individually to study their association with cardiac autonomic functions(CAF).

RESULTS

HRV and BRS were well correlated to EPDS and PSS scores. The depression and stress were found to be significantly associated to autonomic dysfunctions as increased sympathetic and decreased parasympathetic activity. Among various CAF parameters, LF:HF ratio and BRS were found to be significantly associated with depression and stress among these women.

CONCLUSION

LF:HF ratio and BRS may be associated with depression during antenatal period. The depression in antenatal period may add on to cardiovascular risk in expecting mothers.

A Viewpoint: Validation of Self-Reported Anxiety Screening Scales in Perinatal Populations- Outstanding Issues in the Validation Research Agenda

In the absence of perinatal anxiety screening, clinically significant symptoms of anxiety remain under-detected and undertreated during perinatal period. Perinatal anxiety has a significant and far reaching impact on mothers and their children. There are well established recommendations for routine mental health screening during the perinatal period, yet less than one in five of providers routinely screen and one in seven women receive the mental health intervention they need. The validity of anxiety screening scales needs to be ascertained by criterion validity parameters such as sensitivity, specificity, and predictive values. Criterion validity, which is assessed against a reference standard, allows clear interpretation of screening results, supporting their integration with clinical care pathways. However, few existing validation studies of anxiety scales in perinatal populations examined criterion validity. Construct validity of anxiety scales, the focus of existing validation studies, does not use reference standard; thus, it lacks clear clinical interpretability for screening application. Future validation studies should focus on assessing the criterion validity of anxiety scales in perinatal populations. This will help nurses, midwives, and other members of interdisciplinary teams to clarify scale validity, interpretation, and utility for screening women for anxiety in the perinatal period.

Maternal influences on fetal brain development: The role of nutrition, infection and stress, and the potential for intergenerational consequences

An optimal early life environment is crucial for ensuring ideal neurodevelopmental outcomes. Brain development consists of a finely tuned series of spatially and temporally constrained events, which may be affected by exposure to a sub-optimal intra-uterine environment. Evidence suggests brain development may be particularly vulnerable to factors such as maternal nutrition, infection and stress during pregnancy. In this review, we discuss how maternal factors such as these can affect brain development and outcome in offspring, and we also identify evidence which suggests that the outcome can, in many cases, be stratified by socio-economic status (SES), with individuals in lower brackets typically having a worse outcome. We consider the relevant epidemiological evidence and draw parallels to mechanisms suggested by preclinical work where appropriate. We also discuss possible transgenerational effects of these maternal factors and the potential mechanisms involved. We conclude that modifiable factors such as maternal nutrition, infection and stress are important contributors to atypical brain development and that SES also likely has a key role.