Prenatal expectations in Mexican American women: development of a culturally sensitive measure

Latina paradox in Spain? Arrival-cohort effects on the birthweight of newborns of Latina mothers

This study analyses the arrival-cohort effects on the newborn birthweight of Latina women residing in Spain. First, it has been tested whether women of Latin American origin in Spain have an advantage in terms of birth outcomes, a pattern previously documented in the United States and referred to as the 'Latin American paradox'. Second, it has been examined whether this health advantage of Latina mothers varies by arrival cohort.A novel database provided by the Spanish National Statistics Office that links the 2011 Census with Natural Movement of the Population records from January 2011 to December 2015 has been used. Poisson regression models were applied to test for differences in the incidence rates of low birthweight (LBW) and high birthweight (HBW) among children of Latina and native mothers, controlling for various demographic, socio-economic, and birth characteristics.Two distinct arrival-cohort effects on perinatal health were observed. On one hand, first-generation Latina women were found to be at a lower risk of giving birth to LBW infants; however, they experienced a higher incidence of HBW during the study period. Second, Latina women of 1.5 generation, likely stressed by increased exposure to the receiving country, exhibited adverse birthweight results.

The Birth and Beyond (BABY) study: protocol for a birth cohort study investigating the social and environmental determinants of pregnancy-related outcomes in Black American families

INTRODUCTION

In the USA, Black birthing people and infants experience disproportionately worse pregnancy-related health outcomes. The causes for these disparities are unknown, but evidence suggests that they are likely socially and environmentally based. Efforts to identify the determinants of these racial disparities are urgently needed to elucidate the highest priority targets for intervention. The Birth and Beyond (BABY) study evaluates how micro-level (eg, interpersonal and family) and macro-level (eg, neighbourhood and environmental) risk and resiliency factors transact to shape birth person-infant health, and underlying psychobiological mechanisms.

METHODS AND ANALYSIS

The BABY study will follow 350 Black families (birthing parents, non-birthing parents and infants) from pregnancy through the first postpartum year, with research visits during pregnancy and at infant ages 6 and 12 months. Research visits comprise a combination of interview about a range of recent and life course stress and resiliency exposures and supports, psychophysiological (sympathetic, parasympathetic and adrenocortical) assessment and behavioural observations of parent-infant coregulatory behaviours. Spatial analyses are completed by mapping parent current and past residential addresses onto archival public data (eg, about neighbourhood quality and racial segregation). Finally, EMRs are abstracted for information about birthing parent relevant medical history, pregnancy conditions and infant birth outcomes. Analyses will evaluate the risk and resiliency mechanisms that contribute to pregnancy and birth-related outcomes for Black birthing people and their infants, and the protective role of individual, familial, cultural, and community supports.

ETHICS AND DISSEMINATION

The BABY study has been approved by the Institutional Review Board at Albany Medical Centre. The study team consulted with local organisations and groups comprised of stakeholders and community leaders and continues to do so throughout the study. Research results will be disseminated with the scientific and local community as appropriate.

Pregnancy Anxiety and Beliefs Surrounding Motherhood in Latinas: A Qualitative Study

Objectives

Prior research indicates that Latinas are at risk for experiencing high levels of anxiety during pregnancy. Pregnancy anxiety is a specific affective experience involving fears and worries about one's current pregnancy and it has been linked to heightened risk for preterm birth and developmental effects. Despite this concerning pattern, research has rarely examined Latina beliefs about the transition to motherhood and little is known about specific sources of pregnancy anxiety in Latinas, including whether fears are rooted in cultural concerns. The present study investigates the experiences of pregnancy anxiety among Latinas and explores their broader cultural beliefs surrounding pregnancy.

Methods

Fourteen pregnant Latinas articulated their experience of pregnancy anxiety, how they coped with their anxiety, and the beliefs they held surrounding pregnancy in 11 individual interviews and one focus group of three participants, all conducted in Spanish.

Results

Thematic analysis revealed that overall, Latinas felt that anxiety during pregnancy was normal, and that they worried about labor and delivery, losing their baby, their baby being born with a birth defect, and felt affected by the broader sociopolitical climate. Latinas felt lucky to be pregnant, believed that pregnancy was a blessing from God, and stressed the importance of maintaining a healthy pregnancy. Themes about family involvement and culturally-driven privileged status also emerged.

Conclusions

The present study highlights specific themes that may be important to consider in the context of Latina perinatal health. Such findings set the stage for future investigations examining the experience of anxiety specific to pregnancy in Latinas.

Prenatal Neighborhood Ethnocultural Context and the Mental Health of Mothers and Children in Low-Income Mexican American Families

Socioeconomically disadvantaged neighborhoods increase the risk for poor mental health among residents, yet protective factors may operate alongside risk. This study evaluated the influence of the prenatal neighborhood ethnocultural context on child behavior problems and maternal depressive symptoms. Prenatal maternal role expectations, prenatal culture-specific stress, and postpartum depression (PPD) symptoms were evaluated as mediators. Participants included 322 low-income, Mexican American mother-child dyads. Women (Mage  = 27.8) reported on proposed mediators, maternal depressive symptoms, and child behavior problems at 4.5 years. Neighborhood Latinx concentration was obtained from census data. Higher Latinx concentration predicted fewer maternal depressive symptoms and child behavior problems, mediated through role expectations and PPD symptoms. Results suggest prenatal neighborhood context to impact later maternal and child mental health.

A prenatal programming perspective on the intergenerational transmission of maternal adverse childhood experiences to offspring health problems

Decades of research indicate that individuals exposed to childhood adversity are at risk for poor physical and mental health across their life span. More recently, intergenerational transmission of trauma and prenatal programming frameworks suggest an even longer reach for adverse childhood experiences (ACEs), with consequences that extend to subsequent generations. Beyond the individual-level consequences typically observed by empirical studies of ACEs, mothers' experiences of early adversity may also compromise the maternal-child dyadic relationship. We propose a conceptual model whereby mothers' ACEs impact maternal-infant dyadic functioning and later biobehavioral health outcomes through heightened perinatal psychosocial risk. We provide support for the proposed paths and mechanistic processes in our model with data drawn from Las Madres Nuevas, a longitudinal study of low-income Mexican-origin families who participated in a series of home and laboratory visits from the prenatal period through early childhood. Higher ACEs exposure among Las Madres Nuevas participants was associated with numerous perinatal psychosocial risk factors, which predicted poorer mother-infant dyadic functioning. Compromised dyadic functioning during infancy was associated with later maternal mental health and child behavior problems. We conclude with discussion of prevention and treatment strategies that can buffer against proposed risk pathways, including perinatal assessment of maternal ACEs and psychosocial risk, perinatal treatment of maternal distress, and mother-infant therapy in the postpartum period. It is our hope that the proposed conceptual model will serve as a guide for future research to examine the lasting consequences of childhood adversities within and across generations among high-risk populations. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Perinatal Anxiety Symptoms: Rates and Risk Factors in Mexican Women

Anxiety during pregnancy and after childbirth can have negative consequences for a woman and her baby. Despite growing interest in the perinatal mental health of Mexican women living in the U.S., perinatal anxiety symptom (PAS) rates and risk factors have yet to be established for women in Mexico. We sought to determine PAS rates and identify risk factors, including the traditional female role (TFR) in a sample of Mexican women. This secondary data analysis is based on 234 Mexican women who participated in a longitudinal study on perinatal depression in Mexico. Anxiety symptoms were assessed in pregnancy and at six weeks postpartum. Rates were determined through frequencies, and multiple logistics regressions were conducted to identify risk factors in the sample. The PAS rate was 21% in pregnancy and 18% postpartum. Stressful life events and depressive symptoms were associated with a higher probability of PAS. Adherence to TFR increased the probability of prenatal anxiety; lower educational attainment and low social support during pregnancy increased the probability of postpartum anxiety. The PAS rates were within the range reported in the literature. The TFR was only associated with anxiety in gestation, highlighting the role of this culturally relevant risk factor. Culturally responsive early interventions are therefore required.

Patterns of family negativity in the perinatal period: Implications for mental health among Mexican-origin women

Negativity in the family environment during the perinatal period is likely to have detrimental effects on maternal well-being, especially among low-income ethnic minority mothers who are at increased risk for experiencing postpartum depressive symptoms. With a sample of 322 Mexican and Mexican American families, this study used latent class growth analysis to identify meaningful subgroups of women based on their perceived family negativity reported prenatally and at 6, 12, 18, and 24 weeks postpartum. A 4-trajectory model of family negativity fit the data well: low-stable (58%), moderate-increasing (26%), high-decreasing (8%), and high-increasing (8%). Higher prenatal depressive symptomatology predicted membership in the moderate-increasing, high-decreasing, and high-increasing trajectories, relative to the low-stable trajectory. Findings suggest substantial heterogeneity in family negativity, identifying three significant growth patterns during the perinatal period with differential implications for maternal depressive symptomatology at 24 weeks and 12 months after delivery. (PsycInfo Database Record (c) 2020 APA, all rights reserved).

Pathways to Maternal and Child Well-Being: Stability and Transaction across Toddlerhood

OBJECTIVE

This study examines the development of minor parenting stress, parenting satisfaction, and dyadic dysregulation across early childhood and evaluates their roles in predicting maternal and child well-being one year later.

DESIGN

Data was collected from 322 low-income, Mexican American mother-child dyads at child ages 12, 18, 24, and 36 months. Mothers responded to questionnaires during structured interviews, and mother-child dyadic interactions were observed during structured teaching tasks and later coded for global displays of emotional, attentional, and behavioral dysregulation.

RESULTS

Cross-lag path analyses revealed negative concurrent relations between minor parenting stress and parenting satisfaction at every time point and stability in constructs across time. Parenting stress predicted greater subsequent dyadic dysregulation. Greater dyadic dysregulation and stress related to parenting predicted more maternal depressive symptoms and child behavior problems, whereas greater parenting satisfaction predicted less maternal depressive symptoms and child behavior problems.

CONCLUSION

In this minority at-risk population, there was substantial stability in and a lack of transactional relations between minor parenting stresses, parenting satisfaction, and dyadic dysregulation across toddlerhood. These factors are important determinants of maternal and child well-being, with minor parenting stress emerging as particularly powerful.

A systematic review of cultural orientation and perinatal depression in Latina women: are acculturation, Marianismo, and religiosity risks or protective factors?

Latinas in the USA and Spanish-speaking countries experience elevated rates of perinatal depression (PND) because of high psychosocial stressors. Latinas are heterogeneous and have varying cultural practices. It is unclear whether specific cultural orientations have differential risks for PND. This systematic review aimed to determine whether degree of acculturation, Marianismo, and religiosity are risks or protective factors for PND in Latina women living in the USA, Latin America, and other countries. The review included PubMed, CINAHL, PsycINFO, PsycARTICLES, Academic Search Ultimate (EBSCO), and Social Services Abstracts, and used Boolean combined keywords. English and Spanish language articles were considered. The review was conducted between July 2017 and February 2018, with no boundaries on publication dates. Ten studies were selected for inclusion. Of those, two studies were conducted in Mexico and most studies conducted in the USA included women of Mexican descent. Degree of acculturation (adoption of mainstream values) was inconsistently directly associated with PND; evidence suggest indirect associations. Marianismo, the traditional female role of virtue, passivity, and priority of others over oneself, was inconsistently correlated with risk for depression in pregnancy, but significantly and indirectly associated with postpartum depression. Two of three studies found religiosity to be protective postpartum. Further research on protective and risk factors of specific cultural orientations, particularly degree of acculturation and Marianismo, for PND in Latinas in the USA and abroad is needed. Attention to specific perinatal periods is necessary given the inconsistent findings.

Infant Vagal Tone and Maternal Depressive Symptoms: A Bottom-Up Perspective

Children vary in their susceptibility to environmental exposures such as maternal depression, but little is known about how children shape those same environments. When raising an infant with low arousal, mothers at risk of depression may experience decreased parenting self-efficacy and increased depressive symptoms. We evaluated a longitudinal mediated moderation model that hypothesized interactive effects of infant vagal tone (indexed by respiratory sinus arrhythmia [RSA]) and maternal postpartum depressive (PPD) symptoms on maternal depressive symptoms in early childhood via parenting self-efficacy. Among a sample of 322 very low-income Mexican American mother-infant dyads (46% male infants), infant RSA was assessed at 6 weeks of age; mothers (M_age = 27.8, SD = 6.5) reported PPD symptoms every 3 weeks from 6 weeks to 6 months, parenting self-efficacy at 18 and 24 months, and depressive symptoms at 18 and 36 months. Higher PPD symptoms predicted higher maternal depressive symptoms at 36 months, especially among mothers whose infants had lower resting RSA. The interactive effect of PPD symptoms and infant RSA on 36-month depressive symptoms was partially mediated by lower parenting self-efficacy. Lower infant RSA may exacerbate the detrimental effects of PPD symptoms on subsequent maternal well-being via damage to mothers' beliefs in their ability to parent effectively.

Mother-infant dyadic dysregulation and postpartum depressive symptoms in low-income Mexican-origin women

The current study evaluated a mechanistic pathway by which prenatal stress increases the risk of postpartum depressive (PPD) symptoms via observed dyadic emotional, behavioral, and attentional dysregulation and associated cortisol responses during mother-infant interactions.

METHODS

Participants included 322 low-income Mexican American mother-infant dyads. Depressive symptoms, economic hardship, and negative life events were assessed at a prenatal visit. Dysregulation in dyadic (mother-infant) interactions and cortisol responses to mother-infant interaction were evaluated at 12 weeks after the birth. Twenty-four weeks after the birth, PPD symptoms were predicted from prenatal stress (negative life events and economic hardship) and prenatal depressive symptoms, mediated through dyadic dysregulation and maternal and infant cortisol responses.

RESULTS

More negative life events in the prenatal period predicted more dyadic dysregulation at 12 weeks postpartum. Dyadic dysregulation and economic hardship predicted elevated 12-week infant cortisol total response and reactivity, and higher total infant cortisol response predicted higher maternal PPD symptoms at 24 weeks. Maternal cortisol response was not associated with dyadic dysregulation, either form of prenatal stress, or PPD symptoms.

CONCLUSION

The results indicate the salience of early psychosocial processes and mother-infant relationship challenges for subsequent maternal affective well-being.

Infants' Biological Sensitivity to the Effects of Maternal Social Support: Evidence Among Mexican American Families

The identification of infants who are most susceptible to both negative and positive social environments is critical for understanding early behavioral development. This study longitudinally assessed the interactive effects of infant vagal tone (respiratory sinus arrhythmia; RSA) and maternal social support on behavioral problems and competence among 322 low-income Mexican American mother-infant dyads (infants: 54.1% female) and explored sex differences. Infant RSA was calculated from resting HR data at 6 weeks of age. Mothers reported on general social support, partner support, and family support at 6 months, and infant behavioral problems and competence at 1 year. Two-way interactions (RSA × support source) were evaluated to predict behavioral problems and competence, adjusting for covariates. Results indicated higher competence among infants with lower RSA whose mothers reported higher general support or higher partner support. Interactive effects on behavior problems of RSA with maternal partner or family support were only found for female infants: Girls with higher RSA showed more behavior problems when mothers reported low support, but fewer problem levels in the context of high support. Our results suggest that infant RSA is an important moderator of the effects of the early social environment on early development.

The significance of supportive and undermining elements in the maternal representations of an unborn baby

OBJECTIVE

The maternal representations of an unborn baby begin to develop during pregnancy. However, the factors that moderate them are not well identified. The objective of this study was to jointly explore supportive and undermining factors in the maternal representations of an unborn baby and motherhood.

METHODS

Cross-sectional data comprising 1646 women studied during the third trimester of pregnancy. Maternal expectations were measured using a 12-item self-report questionnaire, Mother's Representations about an Unborn Baby. Depression, anxiety, family atmosphere and adult attachment were measured using standardised questionnaires. Statistical analysis is based on multivariate linear regression analysis.

RESULTS

The most powerful predictors of a mother's prenatal expectations were the mother's educational status, age, closeness in adult relationships, higher levels of depressive symptoms and family atmosphere. In accordance with our hypothesis, depression was related to the mother's more negative expectations on their relationship with the unborn baby and on regularity in the baby's sleeping and eating patterns. A positive family atmosphere and the mother's ability for closeness and dependence (i.e. confidence) in adult relationships were related to more positive expectations of the mother-unborn baby relationship. On the other hand, stress, anxiety and adverse life events were not related to the mother's expectations of her unborn baby.

CONCLUSIONS

The results may be helpful in identifying families who need early professional support and call for studies where the prenatal phase is explored as a proactive phase for the development of the child-parent relationship.

Healthy foods prepared at home: Diet and support as protective strategies during pregnancy for Hispanic women

Birth outcomes tend to be better among Hispanics than among other ethnic groups, even when matched for poverty and education, and foreign-born Latinas compared to their US-born counterparts. These patterns suggest that sociocultural factors exhibited by recent immigrants have the potential to protect birth outcomes against the instability of minority and low socioeconomic status. To discover potential sociocultural factors, a pilot qualitative study was carried out in Tucson, Arizona, with 18 Hispanic mothers. The two most prevalent factors reported were (1) a healthy diet prepared at home from minimally processed ingredients, and (2) constant and comprehensive social support. When comparing responses related to diet by interview language preference, a proxy for acculturation, there was very little difference between participants who interviewed in Spanish and those who interviewed in English. This result may be explained by greater maternal social support and higher education levels among those who interviewed in English.

Family Support and Family Negativity as Mediators of the Relation between Acculturation and Postpartum Weight in Low-Income Mexican-Origin Women

BACKGROUND

Obesity presents a significant health concern among low-income, ethnic minority women of childbearing age.

PURPOSE

The study investigated the influence of maternal acculturation, family negativity, and family support on postpartum weight loss among low-income Mexican-origin women.

METHODS

Low-income Mexican-origin women (N=322; 14% born in the U.S.) were recruited from a prenatal clinic in an urban area of the Southwest U.S. Acculturation was assessed during a prenatal home visit (26-38 weeks gestation), and post-birth family support and general family negativity were assessed at 6 weeks postpartum. Objective maternal weight measures were obtained at five time points across the first postpartum year.

RESULTS

Higher acculturation predicted higher family support and family negativity. Higher family support predicted decreasing weight across the first postpartum year, and higher family negativity predicted higher weight at 6 weeks postpartum and increasing weight across the first postpartum year. In combination, family negativity and support mediated the impact of acculturation on postpartum weight gain.

CONCLUSIONS

Cultural and family-related factors play a significant role in postpartum weight gain and loss for low-income Mexican-origin women.

Prediction of Postpartum Weight in Low-Income Mexican-Origin Women From Childhood Experiences of Abuse and Family Conflict

OBJECTIVES

The postpartum period represents a crucial transition period in which weight gain or loss can affect lifetime obesity risk. This study examined the prevalence of obesity and the influence of childhood abuse and family conflict on postpartum weight among low-income Mexican-origin women. Depressive symptoms and partner support were evaluated as mediators.

METHODS

At a prenatal assessment, low-income Mexican-origin women (N = 322; mean [SD] age, 27.8 [6.5]) reported on childhood abuse and family conflict. Weight was measured 7 times between 6 weeks and 2 years postpartum and calculated as body mass index. Regression and growth models were used to estimate the impact of childhood abuse, childhood family conflict, partner support, and depressive symptoms on weight and weight change.

RESULTS

Higher family conflict predicted higher weight across the first (β = .12; p = .037) and second (β = .16; p = .012) postpartum years. Family conflict (β = .17; p = .018) and low partner support (β = -.16; p = .028) also predicted increasing weight in the first year. Partner support partially mediated the effect of childhood abuse on weight change in the first year (p = .031). Depressive symptomatology mediated the effects of childhood abuse and family conflict on weight status in the second year (abuse: p = .005; conflict: p = .023).

CONCLUSIONS

For low-income Mexican-origin women with a history of childhood abuse or high family conflict, depression and low partner support may be important targets for obesity prevention efforts in the postpartum period.

Intention to Breastfeed as a Predictor of Initiation of Exclusive Breastfeeding in Hispanic Women

Exclusive breastfeeding (EBF) is the most efficacious form of infant feeding and nutrition. Hispanic mothers in the US are more likely than mothers of other racial/ethnic groups to supplement with formula in the first 2 days of life. The purpose of this study was to explore infant feeding intentions during the prenatal period as a predictor of EBF at postpartum discharge in a sample of Hispanic women (n = 99). At discharge, 51 % of the women were EBF, 44 % were breastfeeding and supplementing with formula, and 5 % were feeding only formula. Intention to breastfeed was found to be a strong and potentially modifiable predictor of breastfeeding behavior, showing a significant association with EBF upon discharge from the hospital after birth when linked with acceptance of pregnancy and method of delivery. Prenatal care offers a unique opportunity to enhance intentions to breastfeed that may lead to improved EBF in this health vulnerable population.

What matters to women: a systematic scoping review to identify the processes and outcomes of antenatal care provision that are important to healthy pregnant women

BACKGROUND

Global uptake of antenatal care (ANC) varies widely and is influenced by the value women place on the service they receive. Identifying outcomes that matter to pregnant women could inform service design and improve uptake and effectiveness.

OBJECTIVES

To undertake a systematic scoping review of what women want, need and value in pregnancy.

SEARCH STRATEGY

Eight databases were searched (1994-2015) with no language restriction. Relevant journal contents were tracked via Zetoc.

DATA COLLECTION AND ANALYSIS

An initial analytic framework was constructed with findings from 21 papers, using data-mining techniques, and then developed using meta-ethnographic approaches. The final framework was tested with 17 more papers.

MAIN RESULTS

All continents except Australia were represented. A total of 1264 women were included. The final meta-theme was: Women want and need a positive pregnancy experience, including four subthemes: maintaining physical and sociocultural normality; maintaining a healthy pregnancy for mother and baby (including preventing and treating risks, illness and death); effective transition to positive labour and birth; and achieving positive motherhood (including maternal self-esteem, competence, autonomy). Findings informed a framework for future ANC provision, comprising three equally important domains: clinical practices (interventions and tests); relevant and timely information; and pyschosocial and emotional support; each provided by practitioners with good clinical and interpersonal skills within a high quality health system.

CONCLUSIONS

A positive pregnancy experience matters across all cultural and sociodemographic contexts. ANC guidelines and services should be designed to deliver it, and those providing ANC services should be aware of it at each encounter with pregnant women.

TWEETABLE ABSTRACT

Women around the world want ANC staff and services to help them achieve a positive pregnancy experience.

Economic Stress and Cortisol Among Postpartum Low-Income Mexican American Women: Buffering Influence of Family Support

Low-income Mexican American women experience significant health disparities during the postpartum period. Contextual stressors, such as economic stress, are theorized to affect health via dysregulated cortisol output. However, cultural protective factors including strong family support may buffer the impact of stress. In a sample of 322 low-income Mexican American women (mother age 18-42; 82% Spanish-speaking; modal family income $10,000-$15,000), we examined the interactive influence of economic stress and family support at 6 weeks postpartum on maternal cortisol output (AUCg) during a mildly challenging mother-infant interaction task at 12 weeks postpartum, controlling for 6-week maternal cortisol and depressive symptoms. The interaction significantly predicted cortisol output such that higher economic stress predicted higher cortisol only among women reporting low family support. These results suggest that family support is an important protective resource for postpartum Mexican American women experiencing elevated economic stress.

Exploring women's fear of childbirth in a high maternal mortality setting on the Arabian Peninsula

BACKGROUND

Few studies from low-income countries have addressed women's fear of childbirth (FOC) although likely to affect women during both pregnancy and childbirth. The aim of this study was to explore FOC in a high maternal mortality setting in the Arab region, Yemen.

METHODS

A multi-stage (stratified-purposive-random) sampling process was used. We interviewed 220 women with childbirth experience in urban/rural Yemen. Answers to the question 'Were you afraid of giving birth?' were analyzed using qualitative content analysis.

RESULTS

Women perceived childbirth as a place of danger. Fear of death and childbirth complications stemming from previous traumatic childbirth and traumatic experience in the community was rampant. Husbands' and in-laws' disappointment in a girl infant constituted a strong sociocultural component of FOC. Women's perception of living in tension 'between worlds' of tradition and modernity reinforced fear of institutional childbirth. Women without FOC gave reasons of faith, social belonging and trust in either traditional or modern childbirth practice, past positive experience of childbirth and the desire for social status associated with children.

CONCLUSIONS

The numerous maternal and infant deaths have a strong impact on women's FOC. Antenatal care has an important role in reducing fear including that of institutional childbirth and in strengthening a couple in welcoming a female infant. Staff should be sensitized to the fears of both husband and wife and women be allowed support during childbirth. Within the scope of the Millennium Development Goals and strengthening of reproductive mental health programs, FOC urgently needs to be addressed.

Prenatal stress, partner support, and infant cortisol reactivity in low-income Mexican American families

Maternal exposure to significant prenatal stress can negatively affect infant neurobiological development and increase the risk for developmental and health disturbances. These effects may be pronounced in low SES and ethnic minority families. We explored prenatal partner support as a buffer of the impact of prenatal stress on cortisol reactivity of infants born to low-income Mexican American women. Women (N=220; age 18-42; 84% Spanish-speaking; 89% foreign born; modal family income $10,000-$15,000) reported on economic stress and satisfaction with spousal/partner support during the prenatal period (26-38 weeks gestation), and infant salivary cortisol reactivity to mildly challenging mother-infant interaction tasks was assessed at women's homes at six weeks postpartum. Multilevel models estimated the interactive effect of prenatal stress and partner support on cortisol reactivity, controlling for covariates and potential confounds. Infants born to mothers who reported high prenatal stress and low partner support exhibited higher cortisol reactivity relative to those whose mothers reported high support or low stress. The effects did not appear to operate through birth outcomes. For low-income Mexican American women, partner support may buffer the impact of prenatal stress on infant cortisol reactivity, potentially promoting more adaptive infant health and development.