Effects Of Prenatal Depression Research Articles

The Role of Maternal Depression Symptoms and Maternal Attachment in Predicting Exclusive Breastfeeding: A Multisite Prospective Study.

Background: Previous research shows that 61% of children younger than 6 months in low- and middle-income countries (LMICs) are not exclusively breastfed. Although data on the role of pre- and postnatal depression on breastfeeding exclusivity is mixed, fetomaternal attachment might foster breastfeeding exclusivity. Thus, we tested the potential mediating role of fetomaternal attachment and postnatal depression in the relationship between maternal prenatal depression and exclusive breastfeeding. Materials and Methods: Data were collected as part of a prospective, cross-cultural project, Evidence for Better Lives Study, which enrolled 1208 expectant mothers, in their third trimester of pregnancy across eight sites, from LMICs. Of the whole sample, 1185 women (mean age = 28.32, standard deviation [SD] = 5.77) completed Computer-Aided Personal Interviews on prenatal depressive symptoms, fetomaternal attachment, and socioeconomic status. A total of 1054 women provided follow-up data at 3-6 months after birth, about postnatal depressive symptoms, exclusive breastfeeding, and infant health indicators. Path analysis was used to assess parallel mediation. Results: In the whole sample, the effect of prenatal depression on breastfeeding exclusivity was completely mediated by postnatal depression, whereas fetomaternal attachment did not mediate the relationship. The full mediation effect was replicated individually in Pakistan and Sri Lanka. Conclusions: The study results indicate that prenatal depression symptoms contributed to the development of depressive symptoms after birth, negatively affecting the probability of exclusive breastfeeding. Future research should explore this in early prevention interventions, increasing the chances of healthy child development in LMICs. Considering the mixed results around the sites, it is important to better understand the relationship between maternal depression, fetomaternal attachment and breastfeeding behavior in each site's socio-cultural context.

Influence of Maternal Adverse Childhood Experiences on Birth Outcomes in American Indian and non-Hispanic White Women.

Maternal adverse childhood experiences (ACEs) are an antecedent risk during prenatal and postpartum periods. We examined race-based differences of the mediating influences of antepartum health risks (prenatal depression, high blood pressure, gestational diabetes) on associations between ACEs and maternal and birth outcomes (postpartum depression, preterm birth, low birthweight) among American Indian and non-Hispanic White women. Public use data from the South Dakota Pregnancy Risk Assessment Monitoring System PRAMS (2017-2019) were used for this secondary analysis of postpartum women. ACEs and depression were measured based on self-report survey results. Antepartum risks and birth outcomes were extracted from birth certificate data. A moderated mediation logit model estimated direct, indirect, and moderating effects by race, controlling for maternal characteristics and perinatal risks to understand ACEs' impact on pregnancy and birth outcomes between groups. The sample included 2,343 postpartum women. American Indian versus non-Hispanic White women had a higher mean ACE score (3.37 vs. 1.64) and substantial disparities. Race-based differences were attributed to social, economic, and health-related factors. Adjusting for proportional differences, members of both groups with ACEs demonstrated significantly increased odds of prenatal and postpartum depression. ACEs influenced postpartum depression and preterm birth through the indirect effect of prenatal depression in both races. Prenatal depression indirectly influenced the relationship between ACEs and low birthweight in non-Hispanic White women. ACEs were associated with higher levels of prenatal depression, which may negatively influence maternal and birth outcomes in American Indian and non-Hispanic White women. Improving perinatal outcomes must emphasize psychosocial care along with medical care to address the high burden of maternal ACEs in the United States.

Maternal Depression and Preeclampsia

Prenatal depression and preeclampsia (PE) are well-known risk factors of maternal and fetal mortality and morbidity. In recent years, there are emerging evidence suggesting that prenatal depression and PE could be environmental risk factors for several neurodevelopment disorders of offspring. Prenatal depression and PE were also found to be risk factors of each other. At present, the mechanism (s) of how prenatal depression and PE affect one another and their roles in the development of maternal and fetal adverse outcomes are uncertain. In this review, we outline the most recent clinical studies on the effects of prenatal depression and PE on the neurodevelopmental outcomes of offspring, as well as the plausible mechanism(s) of how these two maternal conditions affect each other and their roles in the neurodevelopment of offspring, including inflammation, oxidative stress, and maternal immune activation. We postulate that the overproduction of pro-inflammatory cytokines and increased cortisol levels in maternal depression can alter fetal neurodevelopment, and the autonomic nervous system dysfunction caused by maternal depression may accelerate heart rate and elevate blood pressure in mothers. Similarly, in PE, the elevated inflammation and exaggerated oxidative stress in the mothers, placenta, and fetus could negatively affect maternal depression on and impair the neurodevelopment of offspring. Further studies are needed to examine the combined effects of prenatal depression and PE on the health outcomes of mothers and offspring, to explore the mechanism of maternal depression in the development of PE and to investigate their roles in the neurodevelopment of offspring.

The impact of maternal adverse childhood experiences and prenatal depressive symptoms on foetal attachment: Preliminary evidence from expectant mothers across eight middle-income countries

BackgroundMothers from middle-income countries (MIC) are estimated to have higher rates of adverse childhood experiences (ACEs) and depression during pregnancy compared to mothers from high income countries. Prenatal depression can adversely impact on a mother's feelings towards her foetus and thus may be partially responsible for intergenerational transmission of risk associated with maternal ACEs. However, the extent to which prenatal depressive symptoms mediate the association between maternal ACEs and foetal attachment is unknown. MethodsData on foetal attachment, ACEs, and prenatal depression came from mothers in their third trimester of pregnancy (n = 1,185) located across eight MICs, participating in the prospective birth cohort Evidence for Better Lives Study – Foundational Research (EBLS-FR). Data were from the baseline measurement. ResultsFull-sample path mediation analyses, adjusting for relevant covariates, suggested a full mediating effect of prenatal depression. However, at the individual-country level, both positive and negative effects of ACEs on foetal attachment were observed after the inclusion of depressive symptoms as a mediator, suggesting cultural and geographical factors may influence a mother's empathic development after ACE exposure. LimitationsAs no follow-up measurements of depressive symptoms or postnatal attachment were included in the analyses, the findings cannot be extrapolated to the postnatal period and beyond. Further, causality cannot be inferred as the study was observational. ConclusionsThe findings reinforce the importance of screening for prenatal depression during antenatal care in MICs. Addressing prenatal depression within maternal health care may support foetal attachment and contribute to reducing the intergenerational transmission of disadvantage.

Prenatal Depression in Women in the Third Trimester: Prevalence, Predictive Factors, and Relationship With Maternal-Fetal Attachment.

Objective: The prevalence of prenatal depression in pregnant women has found to be high, which may adversely affect the intimacy of a mother to her fetus. Few studies have investigated the relationship between prenatal depression and maternal-fetal attachment in pregnant Chinese women. This study is thus designed to evaluate the prevalence rate, predictive factors of prenatal depression in Chinese pregnant women in the third trimester of pregnancy, and the effect of prenatal depression on maternal-fetal attachment.Methods: A total of 340 pregnant women in the third trimester of pregnancy were recruited from a hospital in Anhui Province. The Edinburgh Postpartum Depression Scale (EPDS) was rated to assess the prenatal depression; the Pittsburgh Sleep Quality Index (PSQI) and Zung Self-Rating Anxiety Scale (SAS) were used to assess sleep quality and anxiety level for all participants. The Maternal Antenatal Attachment Scale (MAAS) was used to assess maternal-fetal attachment.Results: The prevalence of prenatal depression in the participants was high (19.1%) in our study. The scores of prenatal anxiety and sleep disorders were higher with prenatal depression than in those without prenatal depression (47.6 ± 9.5 vs. 38.9 ± 6.9; 8.3 ± 3.3 vs. 6.1 ± 2.7, all p < 0.01). MAAS quality was lower in prenatal depression women than those in non-prenatal depression women (43.8 ± 5.6 vs. 46.4 ± 4.5, p < 0.01). Correlation analysis showed that prenatal depression was associated with parity, prenatal education, education level, marital satisfaction, anxiety and sleep disorders (all p < 0.05). Furthermore, binary logistic regression results showed that anxiety and sleep disorders were risk factors for prenatal depression. Prenatal education, higher marriage satisfaction were protective factors for prenatal depression. In addition, correlation analysis also showed that prenatal depression was positively correlated with MAAS intensity, but negatively correlated with MAAS quality.Conclusions: Our results indicated a high prevalence of prenatal depression in women in the third trimester. Prenatal education and higher marital satisfaction were protective factors for prenatal depression; antenatal anxiety and sleep disorders during pregnancy were risk factors for prenatal depression. Prenatal depression was negatively correlated with MAAS quality, but positively correlated with MAAS intensity.

Breastfeeding, prenatal depression and children\u2019s IQ and behaviour: a test of a moderation model

BackgroundWe aimed to determine the associations between breastfeeding and children’s neurodevelopment indexed by intelligence quotient (IQ) and emotional and behavioural problems through mid-childhood adjusting for prenatal and postnatal depression and multiple confounders; and to test the novel hypothesis that breastfeeding may moderate the effects of prenatal depression and anxiety on children’s neurodevelopment.MethodsThe study is based on women and their children from the longitudinal Avon Longitudinal Study of Parents and Children (n=11,096). Children’s IQ was derived from standardized in-person testing; behaviour problems were assessed according to parent-report; information on breastfeeding, prenatal depression and anxiety and multiple confounders were derived from self-report questionnaires. We conducted hierarchical multiple regression adjusting for several covariates.Results43% women were exclusively breastfeeding at 1 month and an additional 16.8% were engaged in mixed or partial breastfeeding. Both exclusive breastfeeding (B = 2.19; SD = 0.36, p =.00) and mixed feeding (B = 1.59; SD= 0.52; p=.00) were positively associated with IQ at 8 years of age, after adjusting for covariates. Exclusive breastfeeding was negatively associated with hyperactivity/attention deficit at 4 years (B = −.30, SD = .05; p < .01); mixed feeding was related to hyperactivity/attention deficit at age 9 (B = .20; SD = .08; p = .03) after adjustments. There was no association between breastfeeding and emotional or conduct problems. Breastfeeding did not moderate the association between prenatal depression and anxiety and children’s neurodevelopment.ConclusionsThe selective association between breastfeeding and neurodevelopmental measures suggests a nutritional rather than broader beneficial psychological effect on child neurodevelopment. Breastfeeding did not moderate the associations between prenatal depression and anxiety and child neurodevelopment, suggesting separate mechanisms of action.

Effect of prenatal depression during late pregnancy on maternal and neonatal outcomes

Aim: To determine whether prenatal depression during late pregnancy affect maternal and neonatal outcomes. Methods: The clinical data of 595 pregnant patients in our hospital during January 2016 to December 2017 were studied. These participants were assigned into three groups as mild-to-moderate depression group, severe depression group and non-depression group according to the Edinburgh postnatal depressive scale (EPDS). Results: Compared with the women without depression or with mild-to-moderate depression, pregnant patients with severe depression were likely to suffer from preterm birth (p &lt; 0.05). There was no association between the mild-to-moderate depression, severe depression group and the non-depression group about neonatal outcomes (all p &gt; 0.05). Conclusion: Severe prenatal depression during late pregnancy is significantly associated with increased risk of preterm birth, while mild-to-moderate prenatal depression would not affect maternal and neonatal outcomes.

Children of Prenatally Depressed Mothers: Externalizing and Internalizing Symptoms are Accompanied by Reductions in Specific Social-Emotional Competencies

Studies have shown that child development is negatively affected by prenatal depression. A dysregulated hypothalamic-pituitary-adrenal axis in the pregnant woman, passed to the fetus, is one discussed key mechanism. Studies, investigating primary-school age children, have found effects on antisocial behavior. Effects on internalizing symptoms were not found, but the analysis did not distinguish between anxiety and depression symptoms. Additionally, until now, no objective test data operationalizing social-emotional competencies have been included. The present study examined: 1.Whether the effects on child externalizing symptoms could be replicated; 2. If there are specific effects on child internalizing symptoms, separated for anxiety and depression; and 3. Are child clinical symptoms reflected in reductions in social-emotional competencies. A sample of 61 prenatally depressed and 143 prenatally not-depressed women and their 6–9 year old children were compared, controlling for key confounders in both the perinatal period and in middle childhood. Children of prenatally depressed mothers had more antisocial behavior and depression symptoms reported by their mothers. The prediction of antisocial behavior scores tended to be more significant for boys than for girls. Child anxiety symptoms were primarily explained by current maternal depressive symptoms. Children of prenatally depressed mothers also showed a reduction in social-emotional competencies, specifically regarding the ability to interpret complex social situations. This study showed that, even in a non-clinical sample, there are distinct effects of prenatal depression on child externalizing and internalizing symptoms which are accompanied by reductions in specific social-emotional competencies. These results emphasize that treatment for depressed pregnant women and/or early support for affected families is worthwhile. Additional work is required to identify the underlying biological mechanisms.

Fetal heart rate variability mediates prenatal depression effects on neonatal neurobehavioral maturity

This study analyzed the mediating role of fetal heart rate variability (FHR) on prenatal depression and neonatal neurobehavioral maturity. A sample of 104 pregnant women was recruited and divided into two groups according to their Edinburgh Postnatal Depression Scale (EPDS) scores (depressed/non-depressed). FHR variability in response to speech stimuli was assessed at term (between 37 and 39 weeks gestation). The neonates were then assessed on the Neonatal Behavioral Assessment Scale (NBAS) during the first 5days after birth. The fetuses of non-depressed pregnant women showed higher HR variability than the fetuses of depressed pregnant women in response to speech stimuli, and later as neonates they performed more optimally on the NBAS (on autonomic stability and total scores). FHR variability mediated the relationship between the mother’s prenatal depression and the neonatés NBAS performance. Prenatal depression effects on neonatal behavior may be partially explained by its adverse effects on fetal neurobehavioral maturity.

Effects of prenatal depressive symptoms on maternal and infant cortisol reactivity.

Prenatal depression is associated with adverse offspring outcomes, and the prevailing mechanistic theory to account for mood-associated effects implicates alterations of the maternal and foetal hypothalamic-pituitary adrenal (HPA) axes. Recent research suggests that depression may be associated with a failure to attenuate cortisol reactivity during early pregnancy. The aim of the current study is to investigate whether this effect continues into mid and late gestation. A further aim is to test whether maternal prenatal cortisol reactivity directly predicts infant cortisol reactivity. One hundred three pregnant women were recruited during either the second or third trimester. Depressive symptoms were assessed by self-report, and maternal salivary cortisol responses to a stressor (infant distress film) were measured. Approximately 2 months after birth, mothers (n = 88) reported postnatal depression and infant salivary cortisol responses to inoculation were measured. Prenatal depression was not associated with cortisol reactivity to acute stress in mid and late pregnancy. Similarly, neither prenatal depression nor maternal prenatal cortisol reactivity predicted infant cortisol reactivity to inoculation at 2 months. If the effects of prenatal depression on foetal and infant development are mediated by alterations of the maternal and foetal HPA axes, then early pregnancy may be a particularly vulnerable period. Alternatively, changes to HPA reactivity may not be as central to this association as previously thought.

An independent association of prenatal depression with wheezing and anxiety with rhinitis in infancy.

Different maternal psychological states during pregnancy have been associated with wheeze-rhinitis-eczema symptoms in children. However, previous studies were limited and it was unclear whether the type of prenatal psychological state was associated with a particular symptom. We examined the association of maternal depression and anxiety during pregnancy with wheeze-rhinitis-eczema symptoms in infancy. In a longitudinal birth cohort (GUSTO) of 1152 mother-child pairs, wheeze-rhinitis-eczema symptoms in the infants during the first year of life were collected by parental report. Maternal depressive and anxiety symptoms were assessed at 26 weeks of gestation using the Edinburgh Postnatal Depression Scale (EPDS) and State Trait Anxiety Inventory (STAI). Logistic regression analyses were performed with adjustment for potential confounders. An increased risk of wheezing was found in infants of pregnant women with probable depression (EPDS ≥ 15) [odds ratio (OR) = 1.85 (95% confidence interval (CI) 1.10-3.12)], and an increased risk of rhinitis was associated with maternal anxiety [STAI state ≥ 41: OR = 1.42 (95% CI 1.04-1.93); STAI trait ≥ 43: OR = 1.38 (95% CI 1.01-1.88)]. After adjusting for known risk factors for the development of allergic disease, these associations remained significant [EPDS ≥ 15: adjusted OR = 2.09 (95% CI 1.05-4.19); STAI state ≥ 41: adjusted OR = 1.82 (95% CI 1.17-2.82); STAI trait ≥ 43: adjusted OR = 1.70 (95% CI 1.10-2.61)]. However, maternal psychological states were not associated with infantile eczema. This study suggests that there may be an independent effect of prenatal depression on wheezing and anxiety on rhinitis in infancy.

Relationship of prenatal depression and comorbidities to infant outcomes.

The purpose of this study was to provide information on the effect of prenatal depression and anxiety as assessed in the context of obstetrical care on key infant outcomes (gestational age at birth, birth weight, and APGAR scores), while simultaneously considering interactions with maternal medical conditions among primarily Medicaid enrollees. Obstetrical medical records of 419 women presenting consecutively for prenatal care at a health system serving primarily Medicaid patients were examined. Information on maternal characteristics (age, race, education) and maternal medical health (BMI, high blood pressure, diabetes, and kidney problems), as well as mental health information, was extracted. Depression was assessed as part of routine care using the Patient Health Questionnaire-9 (PHQ-9), and any documentation of depression or anxiety by the obstetrics clinician was also used in the analyses. Approximately one-third of the sample showed some evidence of prenatal depression, either based on PHQ-9 score (≥10) or clinician documentation of depression, and close to 10% showed evidence of anxiety. Multivariate analyses showed significant interactions between depression and anxiety on gestational age and birth weight, between depression and high blood pressure on gestational age, and also between anxiety and kidney problems on gestational age. Among this sample, the effect of maternal depression and anxiety on birth outcomes was more evident when considered along with maternal chronic medical conditions. This information may be used to assist prenatal care clinicians to develop risk assessment based on knowledge of multiple risk factors that may exert and additive influence on poor birth outcomes.

Prenatal depression and adverse birth outcomes: an updated systematic review.

Complications related to preterm birth (PTB) and low birth weight (LBW) are leading causes of infant morbidity and mortality. Prenatal depression is a hypothesized psychosocial risk factor for both birth outcomes. The purpose of this systematic review was to examine evidence published between 1977 and 2013 on prenatal depression and risks of these primary adverse birth outcomes. A systematic search of the PUBMED and PsycINFO databases was conducted to identify studies testing the associations between prenatal depressive symptoms, or diagnoses of depression, and risk of PTB or LBW. We systematically selected 50 published reports on PTB and length of gestation, and 33 reports on LBW and BW. Results were reviewed by two independent reviewers and we evaluated the quality of the evidence with an established systematic review method, the Newcastle Ottawa Scale. We then undertook a narrative synthesis of the results following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Less than a quarter of 50 published reports found that prenatal depression was significantly associated with PTB or gestational age. In contrast, slightly more than half of the 33 reports found that prenatal depression was associated with LBW or BW. When weighing methodological features, we determined that the effects of prenatal depression on LBW are more consistent than effects on length of gestation or PTB. Although the evidence may not be strong enough to support routine depression screening for risk of adverse outcomes, screening to enable detection and timely treatment to reduce risk of postpartum depression is warranted. Further rigorous research on prenatal depression and adverse birth outcomes is needed.

Prenatal maternal depression is associated with low birth weight through shorter gestational age in term infants in Korea

BackgroundMaternal prenatal depression is associated with lower offspring birth weight, yet the impact of gestational age on this association remains inadequately understood. AimsWe aimed to investigate the effect of prenatal depression on low birth weight, gestational age, and weight for gestational age at term. Study designProspective cohort study. SubjectData were collected from 691 women in their third trimester of pregnancy who went on to give birth to a singleton at term without perinatal complications. One hundred and fifty-two women had a Center for Epidemiologic Studies Depression Scale-10 score ≥10 and were classed as prenatally depressed. Outcome measuresLow birth weight (<2500g), gestational age at birth, and birth weight percentile for gestational age. ResultsOffspring of prenatally depressed women were more likely to be low birth weight (Odds ratio [OR] 2.94, 95% confidence interval [CI] 1.14–7.58) than offspring of prenatally non-depressed women, but the association was attenuated (OR 1.66, 95% CI 0.55–5.02) when adjusted for gestational age. Offspring of prenatally depressed women had lower gestational age in weeks (OR for one week increase in gestational age: 0.66, 95% CI 0.47–0.93) than offspring of prenatally non-depressed women. There was no association between prenatal depression and birth weight percentile for gestational age. ConclusionsPrenatal depression was not associated with low birth weight at term, but was associated with gestational age, suggesting that association between maternal depression and birth weight may be a reflection of the impact of depression on offspring gestational age.

Frequency of infant stroking reported by mothers moderates the effect of prenatal depression on infant behavioural and physiological outcomes.

Animal studies find that prenatal stress is associated with increased physiological and emotional reactivity later in life, mediated via fetal programming of the HPA axis through decreased glucocorticoid receptor (GR) gene expression. Post-natal behaviours, notably licking and grooming in rats, cause decreased behavioural indices of fear and reduced HPA axis reactivity mediated via increased GR gene expression. Post-natal maternal behaviours may therefore be expected to modify prenatal effects, but this has not previously been examined in humans. We examined whether, according to self-report, maternal stroking over the first weeks of life modified associations between prenatal depression and physiological and behavioral outcomes in infancy, hence mimicking effects of rodent licking and grooming. From a general population sample of 1233 first time mothers recruited at 20 weeks gestation we drew a stratified random sample of 316 for assessment at 32 weeks based on reported inter-partner psychological abuse, a risk to child development. Of these 271 provided data at 5, 9 and 29 weeks post delivery. Mothers reported how often they stroked their babies at 5 and 9 weeks. At 29 weeks vagal withdrawal to a stressor, a measure of physiological adaptability, and maternal reported negative emotionality were assessed. There was a significant interaction between prenatal depression and maternal stroking in the prediction of vagal reactivity to a stressor (p = .01), and maternal reports of infant anger proneness (p = .007) and fear (p = .043). Increasing maternal depression was associated with decreasing physiological adaptability, and with increasing negative emotionality, only in the presence of low maternal stroking. These initial findings in humans indicate that maternal stroking in infancy, as reported by mothers, has effects strongly resembling the effects of observed maternal behaviours in animals, pointing to future studies of the epigenetic, physiological and behavioral effects of maternal stroking.

Disruption to the development of maternal responsiveness? The impact of prenatal depression on mother–infant interactions

Both prenatal and postnatal maternal depression are independently associated with an increased risk of adverse infant development. The impact of postnatal depression on infants may be mediated through the effect of depression in reducing maternal responsiveness. However, the mechanisms underlying the effect of prenatal depression are unclear. Using longitudinal data from over 900 mother–infant pairs in a UK birth cohort (ALSPAC), we found that women with high depressive symptom scores during mid pregnancy, but NOT when their infants were 8 months, had a 30% increased risk of low maternal responsiveness when the infant was 12 months compared to women with consistently low depression. This may provide a mechanism to explain the independent association between prenatal depression and poorer infant development.

Untreated prenatal maternal depression and the potential risks to offspring: a review

Research exploring the effects of prenatal maternal depression on a developing fetus and child is underrepresented in the literature. Empirical papers have typically focused on the effects of postpartum depression (after birth) instead of prepartum depression (before birth). Disparate empirical findings have produced ongoing debate regarding the effects of prenatal depression on a developing fetus and later in infancy and early childhood. Even more controversial is determining the role of antidepressant medication on offspring outcomes and whether research that does not include the proper control population (e.g., unmedicated depressed participants) can adequately address questions about risks and benefits of treatment during pregnancy. The current review systematically summarizes the literature focusing on unmedicated prenatal depression and offspring outcome and concludes that prepartum depression is highly prevalent, is associated with negative outcomes in offspring, and remains understudied.

Depressed mothers' newborns are less responsive to animate and inanimate stimuli

AbstractData from our research are reviewed showing limited attentiveness and responsivity to animate stimuli in newborns of depressed mothers. These include face–voice stimuli of mothers and strangers, newborn cry sounds and instrumental and vocal music. Newborns of depressed mothers are also noted to be less attentive and responsive when presented with inanimate stimuli, including different texture nipples, different temperature nipples and different weight tubes. Potential underlying mechanisms are suggested by research showing negative effects of prenatal depression, elevated prenatal cortisol and lower prenatal dopamine and serotonin on the newborns of depressed mothers. Additional risk factors are explored, including sleep disturbances and other prenatal stressors. Early interventions, including pregnancy massage, massage therapy for infants and demonstration of the Brazelton Assessment, have been noted to enhance the neonates' attentiveness and responsivity to animate and inanimate stimuli. Limitations of these studies are discussed, including the sample being limited to lower SES women who have many other problems that potentially affect newborns. More controlled studies are needed to assess potential mediating factors for the inferior performance of these newborns on perceptual tasks such as limited attentiveness and/or greater arousal as well as longitudinal follow‐up studies to determine whether these limited perceptual abilities continue into infancy. Copyright © 2010 John Wiley &amp; Sons, Ltd.

Depression During Pregnancy

Animal studies have shown sex differences in the impact of prenatal maternal stress on the offspring. The aim of this prospective case-control study was to assess the effect of prenatal depression on newborn and 1-year-old infant characteristics as related to gender, controlling for confounding variables. We screened 205 pregnant women from April 2004 to November 2006 for depressive symptoms. Inclusion in the prenatal depression group (n = 34) was based on meeting DSM-IV criteria for major depressive episode. We excluded postnatal depression from the control group (n = 79) by routine screening at 2 and 6 months. Newborn and 1-year-old infant characteristics were evaluated with the Neonatal Behavioral Assessment Scale (NBAS) and the Infant-Toddler Social and Emotional Assessment, respectively. Despite our use of numerous exclusion criteria (eg, at-risk pregnancy, preterm delivery), prenatal depression highly correlated with anxiety and stress scores. Male newborns of mothers with prenatal depression had lower scores than controls on the motor skills and regulation of states NBAS clusters (P = .03 and P = .026, respectively). At 1 year, infants of prenatally depressed mothers presented higher scores on generalized anxiety (P = .002), particularly in males (P = .009); activity/impulsivity (P = .042); and sleep problems (P = .023) than controls. As in animal studies, depression during pregnancy may affect infant development in a way that is related to gender. Early gender differences observed to be associated with depression, stress, and anxiety during pregnancy may be a key to understanding the higher prevalence in males of child psychiatric disorders.

Prenatal depression effects and interventions: A review

This review covers research on the negative effects of prenatal depression and cortisol on fetal growth, prematurity and low birthweight. Although prenatal depression and cortisol were typically measured at around 20 weeks gestation, other research suggests the stability of depression and cortisol levels across pregnancy. Women with Dysthymia as compared to Major Depression Disorder had higher cortisol levels, and their newborns had lower gestational age and birthweight. The cortisol effects in these studies were unfortunately confounded by low serotonin and low dopamine levels which in themselves could contribute to non-optimal pregnancy outcomes. The negative effects of depression and cortisol were also potentially confounded by comorbid anxiety, by demographic factors including younger age, less education and lower SES of the mothers and by the absence of a partner or a partner who was unhappy about the pregnancy or a partner who was depressed. Substance use (especially caffeine use) was still another risk factor. All of these problems including prenatal depression, elevated cortisol, prematurity and low birthweight and even postpartum depression have been reduced by prenatal massage therapy provided by the women's partners. Massage therapy combined with group interpersonal psychotherapy was also effective for reducing depression and cortisol levels. Several limitations of these studies were noted and suggestions for future research included exploring other predictor variables like progesterone/estriol ratios, immune factors and genetic determinants. Further research is needed both on the potential use of cortisol as a screening measure and the use of other therapies that might reduce prenatal depression and cortisol in the women and prematurity and low birthweight in their infants.